WO1999049552A1 - Electronic device, method of controlling electronic device, method of estimating charge in rechargeable battery, and method of charging rechargeable battery - Google Patents
Electronic device, method of controlling electronic device, method of estimating charge in rechargeable battery, and method of charging rechargeable battery Download PDFInfo
- Publication number
- WO1999049552A1 WO1999049552A1 PCT/JP1999/001471 JP9901471W WO9949552A1 WO 1999049552 A1 WO1999049552 A1 WO 1999049552A1 JP 9901471 W JP9901471 W JP 9901471W WO 9949552 A1 WO9949552 A1 WO 9949552A1
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- Prior art keywords
- charging
- voltage
- signal
- secondary battery
- electronic device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
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- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time-pieces
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/61—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements against overcharge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/70—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/731—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
Definitions
- the present invention detects a position shift of both coils when power transfer or signal transfer is performed by electromagnetic coupling between coils disposed at positions facing each other, and responds to the position shift of both coils.
- Electronic device capable of controlling charging and data transfer electronic device control method, electronic device capable of estimating the capacity of a charged secondary battery with a simple configuration, capacity of a secondary battery
- the present invention relates to an estimation method and a charge control method for controlling charging of a secondary battery according to an estimation result.
- the coil on the station side and the coil on the portable electronic device side are required not only to be electromagnetically coupled to each other but also to increase the efficiency of charging and signal transfer. Therefore, conventionally, when a portable electronic device is stored in a station, In addition, the winding surfaces of the two coils are parallel to each other, so that the centers of the windings coincide with each other.
- a configuration that detects the positional relationship between the two coils is considered indispensable for charging and signal transfer.
- the configuration for mechanically detecting the positional relationship between the two coils by contact or the like causes a problem in terms of waterproofness as described above. Therefore, when power transfer or signal transfer is performed by electromagnetic coupling between coils arranged at positions facing each other, it is required that the positional relationship between the two coils be detected in a non-contact manner.
- a first object of the present invention is to provide an electromagnetic coupling between two or more devices separated from each other, such as a portable electronic device and a station, with coils disposed at opposing positions.
- An electronic device that can detect the displacement of both coils and the absence of the device to be charged without contact when transferring power and signals, and control charging and data transfer according to the detection results.
- Another object of the present invention is to provide a control method for an electronic device.
- a second object of the present invention is to provide an electronic device and a method for estimating the capacity of a secondary battery that can estimate the capacity of a charged secondary battery with a simple configuration.
- the station is the main source of the power transfer. It is not possible to control charging without notifying the station of the battery capacity.
- the configuration in which such notification is performed via the electric contact causes a problem in terms of waterproofness as described above.
- a third object of the present invention is to provide a method in which a charging device is brought into non-contact with a device to be charged by electromagnetic coupling between two or more devices separated from each other and coils disposed at positions facing each other.
- an electronic device capable of notifying a charging device of the capacity and the like of a secondary battery to a charging device in a non-contact manner to charge the battery to a desired capacity, and a charging control method, even when the secondary battery is charged by Is to do. Disclosure of the invention
- the present invention provides an electronic device configured to include a first device and a second device, wherein charging is performed from the first device side to the second device side, and the first device and A charging / signal transfer unit that performs signal transfer with the second device; a charging / signal transfer control unit that starts the signal transfer after performing the charging for a predetermined period of time; It is characterized by having.
- the present invention relates to an electronic device including a first device and a second device, wherein the first device and the second device are connected to each other by using electromagnetic coupling or electromagnetic induction.
- a charging / signal transfer unit that performs charging from the first device side to the second device side and that performs signal transfer between the first device and the second device; a predetermined predetermined period; And a charge / signal transfer control unit that starts the signal transfer after the charging is performed.
- the charging / signal transfer control unit transmits a communication start command for notifying the start of communication prior to the signal transfer. Further, the present invention is characterized in that the charging / signal transfer unit operates based on a drive clock higher than a normal drive clock when performing the signal transfer.
- the present invention is characterized in that the charge / signal transfer control unit performs the charge and the signal transfer alternately.
- At least the first device and the second device are at least formed by electromagnetic coupling or electromagnetic induction between the first and second coils disposed at positions facing each other.
- An electronic device that performs power transfer or signal transfer comprising: a signal supply unit that supplies a signal to the first coil to generate an external magnetic field; and an electrical state of the second coil by the external magnetic field.
- a position determination unit that determines a positional relationship between the first and second coils according to a detection result by the state detection unit.
- the present invention is characterized by including a notification unit for notifying the positional relationship determined by the position determination unit.
- the present invention is characterized in that, when the position determination unit determines that the positional relationship between the first and second coils is in a predetermined relationship, the notification unit notifies the user of the fact. I have.
- the present invention is an electronic device comprising a first device and a second device and performing at least power transfer or signal transfer via a coil, wherein the electronic device is provided in the first device.
- a second coil disposed in the second device, the second coil being electromagnetically coupleable with the first coil, and supplying a signal to the first coil to generate an external magnetic field
- a position determining circuit for determining the relationship.
- the present invention provides an electronic device that performs at least power transfer or signal transfer by electromagnetic coupling or electromagnetic induction of coils arranged at positions facing each other, and the other device is a device of the present invention.
- a signal supply unit for supplying a signal, and a command from the counterpart device after the signal supply unit supplies the coil.
- a position determination unit for receiving a password and determining a positional relationship with the counterpart device.
- the present invention is characterized by including a notification unit for notifying the positional relationship determined by the position determination unit.
- the notifying unit may be configured so that the position judging unit performs the
- the present invention is characterized in that, when the position determination unit does not receive a command from the counterpart device for a certain period, the notification unit notifies that the counterpart device does not exist.
- the present invention is characterized in that the coil provided in the own device is of an air-core type.
- the present invention provides an electronic device in which the first device and the second device perform at least power transfer or signal transfer by electromagnetic coupling or electromagnetic induction of coils respectively disposed at positions facing each other.
- a position detecting method wherein a signal is supplied to a first coil of the first device to generate an external magnetic field, and a current flowing in a second coil of the second device by the external magnetic field. And a step of determining a positional relationship between the first and second coils according to the detected current.
- At least the first device and the second device are at least formed by electromagnetic coupling or electromagnetic induction between the first and second coils disposed at positions facing each other.
- An electronic device that performs power transfer or signal transfer comprising: a signal supply unit that supplies a signal to the first coil to generate an external magnetic field; and detects an electrical state of the second coil by the external magnetic field. And a control unit that controls the signal supply by the signal supply unit according to the detection result by the state detection unit.
- the invention is characterized in that the electric state is a current state or a voltage state.
- the present invention relates to an electronic apparatus as set forth in claim 6 or claim 16.
- a signal transfer unit for transferring a signal between the first and second devices, a rectifier unit for rectifying a signal flowing through the second coil, and a rectifier unit rectified by the rectifier unit.
- a power storage unit for storing signals.
- the present invention is characterized in that the signal transfer unit performs signal transfer after the signal supply unit supplies a signal for a certain period.
- the signal transfer unit may start communication after the signal supply unit supplies the signal for the predetermined period.
- the signal transfer is performed after transmitting a communication start command for notification.
- the present invention is characterized in that when a signal is transferred between the first and second devices, the device operates based on a drive clock higher than a normal drive clock.
- control unit is characterized in that control is performed such that signal supply by the signal supply unit and signal transfer by the signal transfer unit are performed alternately.
- the present invention is characterized in that, when the control unit determines that the positional relationship between the first and second coils is in a predetermined relationship, the control unit supplies a signal by the signal supply / charge unit and the signal transfer unit. It is characterized by changing the execution ratio with the signal transfer by the network.
- the present invention is characterized in that a detection result by the current detection unit is transferred by the signal transfer unit.
- the present invention is characterized in that the second device is a portable device.
- the first or second coil is an air-core type.
- the present invention is an electronic device comprising a first device and a second device and performing at least power transfer or signal transfer via a coil, wherein the first device is provided in the first device. And a second coil disposed in the second device, the second coil being electromagnetically coupleable, and supplying a signal to the first coil to generate an external magnetic field A signal supply circuit for causing the second coil to be electrically operated by the external magnetic field. And a control circuit for controlling the signal supply by the signal supply circuit according to the detection result by the state detection circuit.
- the invention is characterized in that the electric state is a current state or a voltage state.
- the present invention provides an electronic device that performs at least power transfer or signal transfer by electromagnetic coupling or electromagnetic induction of coils arranged at positions facing each other, and the other device is a device of the present invention.
- control unit terminates the signal supply by the signal supply unit when the control unit does not receive a command from the counterpart device for one period.
- the present invention is characterized in that, when the control unit receives a command indicating that charging is not required from the counterpart device, the control unit terminates the signal supply by the signal supply unit.
- the present invention is characterized in that the signal transfer unit performs the signal transfer when a communication start command is transmitted from the partner device.
- the present invention is characterized in that the coil is of an air-core type.
- At least the first device and the second device are at least formed by electromagnetic coupling or electromagnetic induction between the first and second coils disposed at positions facing each other.
- a method for controlling an electronic device that performs power transfer or signal transfer comprising: supplying a signal to a first coil of the first device to generate an external magnetic field; and Detecting the electrical state of the second coil of the device, and controlling the supply of a signal by the signal supply unit in accordance with the detected result of the electrical state of the second coil. It is characterized by that.
- the electric state is a current state or a voltage state. It is characterized by.
- the present invention provides a charging unit for intermittently charging a secondary battery, and a first unit for detecting a voltage of the secondary battery when a predetermined time has elapsed after charging by the charging unit was interrupted.
- the present invention further provides a second voltage detection unit that detects the voltage of the secondary battery when charging is performed by the charging unit, and a voltage detected by the second voltage detection unit. And a subtraction unit for subtracting a voltage detected by the first voltage detection unit from the first voltage detection unit, wherein the estimation unit estimates the capacity of the secondary battery from a voltage difference caused by the subtraction unit.
- the present invention is characterized in that a discriminating unit for discriminating whether or not the capacity estimated by the estimating unit is a predetermined capacity is provided.
- the present invention is characterized in that the charging unit ends charging if the determination result by the determination unit is positive.
- the present invention provides a charging circuit for intermittently charging a secondary battery, and a voltage detecting circuit for detecting a voltage of the secondary battery when a predetermined time has elapsed since the charging by the charging circuit was interrupted. And an estimation circuit for estimating the capacity of the secondary battery according to the voltage detected by the voltage detection circuit.
- the present invention also provides a step of charging the secondary battery, a step of interrupting the charging of the secondary battery, and detecting a voltage of the secondary battery after a predetermined time has elapsed since the interruption of the charging. And a step of estimating the capacity of the secondary battery according to the detected voltage.
- the present invention provides a charging device, wherein the charging device transfers power to the device to be charged by electromagnetic coupling or electromagnetic induction between first and second coils disposed at positions facing each other, and A device for intermittently charging a secondary battery with the transferred power, wherein a first voltage for detecting a voltage of the secondary battery when a predetermined time has elapsed after charging was interrupted;
- the detection unit and the voltage detected by the first voltage detection unit, or an estimation result based on the voltage It is characterized by comprising a transfer unit for transferring via the first and second coils, and a control unit for controlling charging of the secondary battery in accordance with a transfer result of the transfer unit.
- control unit controls so that charging by the charging unit and signal transfer by the signal transfer unit are alternately executed, and according to a transfer result of the transfer unit. It is characterized in that an execution ratio between the charging of the charging unit and the signal transfer by the signal transfer unit is controlled. Further, the invention is characterized in that the device to be charged is portable. Further, the present invention is characterized in that the first or second coil is of an air-core type.
- the charging device transfers power to the device to be charged by electromagnetic coupling or electromagnetic induction between the first and second coils disposed respectively at positions facing each other, and An electronic device for intermittently charging the transferred power to a secondary battery, wherein a first voltage detection for detecting a voltage of the secondary battery when a predetermined time has elapsed after the charging was interrupted.
- a transfer circuit that transfers the voltage detected by the first voltage detection circuit or an estimation result based on the circuit via the first and second coils; and a transfer result of the transfer unit.
- a control circuit for controlling charging according to the following.
- the present invention provides a charging device, wherein the charging device transfers power to the device to be charged by electromagnetic coupling or electromagnetic induction between first and second coils respectively disposed at positions facing each other.
- An electronic device for charging the transferred power to a secondary battery wherein the device interrupts charging of the secondary battery, and the secondary battery after a lapse of a certain time after the charging is interrupted. Detecting the voltage of the secondary battery, transferring the detected voltage or an estimation result based on the detected voltage via the first and second coils, and charging the secondary battery according to the transfer result. And a step of controlling
- the present invention provides a charging unit for intermittently charging a secondary battery, and a first voltage detection unit for detecting a voltage of the secondary battery immediately after the interruption of charging by the charging unit. After the interruption of the charging, the charging by the charging unit is resumed.
- a second voltage detection unit that detects the voltage of the secondary battery at a time immediately before the second voltage detection unit, a voltage of the secondary battery that is detected by the first voltage detection unit, and a voltage that is detected by the second voltage detection unit.
- an estimation unit for estimating the capacity of the secondary battery based on the voltage of the secondary battery and a voltage difference between the two.
- the present invention provides a charging circuit for intermittently charging a secondary battery, a first voltage detection circuit for detecting a voltage of the secondary battery immediately after the interruption of charging by the charging circuit, A second voltage detection circuit that detects the voltage of the secondary battery at a time immediately before the charging by the charging circuit is restarted after the charging is interrupted, and a second voltage detection circuit that detects the voltage of the secondary battery detected by the first voltage detection circuit. And an estimation circuit for estimating the capacity of the secondary battery based on a voltage difference between the voltage and the voltage of the secondary battery detected by the second voltage detection circuit.
- the present invention provides a method of charging a secondary battery, a step of interrupting charging of the secondary battery, a step of restarting charging of the secondary battery, and a step immediately after the interruption of charging. Detecting the interruption voltage that is the voltage of the secondary battery; detecting the restart voltage that is the voltage of the secondary battery immediately before the restart of the charging; and the interruption voltage. Estimating the capacity of the secondary battery based on the voltage difference between the restart voltage and the restart voltage.
- the present invention provides a charging unit for intermittently charging a secondary battery, and a voltage of the secondary battery at a time immediately before charging by the charging unit is resumed after interruption of charging by the charging unit.
- a first voltage detection unit for detecting a second voltage detection unit for detecting a voltage of the secondary battery immediately after the resumption of the charging, and a secondary voltage detection unit detected by the first voltage detection unit.
- the present invention provides a charging circuit for intermittently charging a secondary battery, and detecting a voltage of the secondary battery at a time immediately before the charging by the charging circuit is restarted after the charging by the charging circuit is interrupted.
- a first voltage detection circuit that performs
- a second voltage detection circuit that detects a voltage of the secondary battery, a voltage of the secondary battery that is detected by the first voltage detection circuit, and a voltage of the secondary battery that is detected by the second voltage detection circuit.
- an estimating circuit for estimating the capacity of the secondary battery based on the voltage difference between:
- the present invention provides a step of charging a secondary battery, a step of interrupting charging of the secondary battery, a step of restarting charging of the secondary battery, and a step of restarting the charging after the interruption of charging. Detecting a voltage immediately before restart, which is the voltage of the secondary battery immediately before the charging is performed; and detecting a voltage immediately after restarting, which is the voltage of the secondary battery immediately after the restart of the charging. Estimating a capacity of the secondary battery based on a voltage difference between the voltage immediately before the restart and the voltage immediately after the restart. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a plan view showing a configuration of a station and an electronic timepiece according to an embodiment of the present invention.
- FIG. 2 is a sectional view showing a configuration of the station and the electronic watch.
- FIG. 3 is a block diagram showing an electric configuration of the station.
- FIGS. 4A and 4B are diagrams showing waveforms of the first and second charging signals, which are signals e in the same station, respectively.
- FIG. 5 is a block diagram showing a configuration of a command detector in the station.
- FIGS. 6 (a) and 6 (b) are evening timing charts for explaining the operation of the command detector.
- FIG. 7 is a circuit diagram illustrating an example of a receiving circuit of the station.
- FIGS. 8A to 8E are timing charts for explaining the operation of the receiving circuit.
- FIG. 9 is a block diagram showing an electrical configuration of the electronic timepiece.
- FIGS. 10 (a) to 10 (f) are timing charts for explaining the operation of the electronic timepiece, respectively.
- FIG. 11 is a flowchart showing the operation of charging and data transfer between the station and the electronic watch.
- FIG. 12 is a flowchart showing the operation of charging and data transfer in the same station.
- FIGS. 13 (a) to 13 (d) are diagrams each showing an example of display on the display unit in the same station.
- FIGS. 14 (a) to 14 (d) are timing charts for explaining specific operations between the station and the electronic timepiece, respectively.
- FIG. 15 is a diagram for explaining the relationship between the voltage and the charging current of the secondary battery.
- FIG. 16 is a block diagram illustrating an electrical configuration of the electronic timepiece according to the second embodiment.
- FIG. 17 is an explanatory diagram of the threshold table of the second embodiment.
- FIG. 18 is a flowchart showing the operation of the charging / delivering overnight transfer between the station and the electronic timepiece according to the second embodiment.
- FIG. 19 is a diagram for explaining the relationship between the shift amount and the output current.
- FIG. 20 is a block diagram showing an electrical configuration of the electronic timepiece according to the third embodiment.
- FIGS. 21A to 21D are timing charts for explaining the operation of the electronic timepiece according to the third embodiment.
- FIG. 22 is a diagram showing the relationship between the battery voltage and the voltage rise ⁇ ⁇ ⁇ due to the transition from discharging to charging during intermittent charging.
- FIG. 23 is a diagram showing conversion contents in the conversion table.
- FIG. 24 is a flowchart showing the operation of the charging / de-scheduling transfer between the station and the electronic timepiece of the third embodiment.
- FIG. 25 is a flowchart showing operations of charging and data transfer in the station of the third embodiment.
- FIGS. 26 (a) to (c) are diagrams each showing an example of a display on the display unit in the station according to the third embodiment.
- FIG. 27 is a block diagram showing a configuration of an electronic timepiece according to a fourth embodiment of the present invention.
- FIG. 28 is a flowchart illustrating charging and data transfer operations between a station and an electronic timepiece according to the fourth embodiment.
- FIG. 29 is a diagram showing charge / discharge characteristics of a general secondary battery.
- FIG. 30 is a diagram for explaining a voltage rise due to the internal impedance of the secondary battery.
- FIG. 31 is a circuit diagram for explaining a voltage rise accompanying a shift from discharging to charging.
- FIG. 32 is a block diagram showing the electrical configuration of the electronic timepiece according to the fifth embodiment.
- FIGS. 33 (a) to 33 (d) are timing charts for explaining the operation of the electronic timepiece according to the fifth embodiment.
- FIG. 34 is a diagram showing a relationship between a battery voltage and a voltage drop ⁇ ′ accompanying transition from discharging to charging in intermittent charging.
- FIG. 35 is a diagram showing the contents of conversion in the conversion table of the fifth embodiment.
- FIG. 36 is a diagram for explaining the operation of the seventh embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
- a station will be described as an example of a first device, and an electronic device charged by the station will be described as an example of a second device.
- the present invention is not limited to these. .
- FIG. 1 is a plan view showing a configuration of a station and an electronic timepiece according to the embodiment.
- the electronic timepiece 200 is housed in the recess 101 of the station 100 when performing charging or data transfer. Since the concave portion 101 is formed slightly larger than the main body 201 and the band 202 of the electronic watch 200, the watch main body 201 is positioned with respect to the station 100. In the state Will be accommodated.
- a display portion 104 for performing various displays is provided.
- the electronic timepiece 200 according to the present embodiment is worn on the user's arm in a normal use state, and it is needless to say that a date and time and the like are displayed on the display unit 204. For example, biological information such as pulse rate and heart rate is detected and stored at regular intervals.
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- a clock-side coil 210 for transfer and charging of data is provided on the lower back cover 212 of the main body 201 of the electronic watch via a cover glass 211 for overnight. Have been.
- the watch main body 201 is provided with a circuit board 222 connected to the secondary battery 220, the watch side coil 210, and the like.
- a station side coil 110 is provided via a cover glass 111 at a position facing the clock side coil 210 in the recess 101 of the station 100. Also, the station 1 0 0, the coil 1 1 0, the charging start button 1 0 3 transfer start button 1 0 3 2, the display unit 1 0 4, primary power source (not shown) such as a connection to a circuit board 1 2 1 is provided.
- the station-side coil 110 and the watch-side coil 210 are physically separated by the cover glasses 111 and 211. Is non-contact, but is electromagnetically coupled because the coil winding surface is almost parallel.
- the station side coil 110 and the clock side coil 210 are used for reasons such as avoiding magnetization of the clock mechanism, avoiding weight increase on the clock side, and avoiding exposure of magnetic metal. It has no air core. Therefore, when the present invention is applied to an electronic device that does not cause a problem, a coil having a magnetic core may be used. However, if the signal frequency applied to the coil is sufficiently high, the air-core type is sufficient.
- one terminal of the station side coil 110 is pulled up to the power supply voltage V cc, while the other terminal D is connected to the drain of the transistor 153.
- the gate of the transistor 153 is connected to the output of the AND gate 152 which receives the clock signal CLK at one input terminal, while the source of the transistor 153 is grounded.
- the clock signal CLK is a signal for synchronizing the operation of each unit, and is generated by the oscillation circuit 140.
- charge start button 103 And transfer start button 1 0 3 2 when depressed Te cowpea user, and outputs a pulse signal of 1 shot.
- the pulse signals output from both buttons are collectively referred to as STR for convenience of explanation, but the charge start button 103> was pressed to distinguish which button was pressed. In this case, the pulse signal CS is output.
- the timer A 144 counts down the preset value m with the clock signal CLK, and outputs the signal a which becomes H level during the counting operation.
- the preset value m is set such that the H level period of the signal a is, for example, 10 hours. That is, timer A 1 4 1 is configured to output a charge ⁇ Boyun 1 0 3 or the transfer start button 1 0 3 2 only 1 0 hour after being pressed to the H level signal a by the user Have been.
- the level of the signal a is inverted by the inverting circuit 144 and supplied to the second input terminal of the OR gate 157 and the processing circuit 130.
- the timer B 144 counts down the preset value n with the clock signal CLK, and outputs the signal b which becomes H level during the counting operation. is there.
- the preset value n is set sufficiently smaller than m, and the H level period of the signal b is set to, for example, 30 minutes. That is, the evening image: B 1 4 2 is the charging start button by the user. Tan 1 0 3 i or the transfer start button 1 0 3 One of the two is pressed, and is configured to output a signal b which becomes 3 0 minutes but only H level.
- the evening timer A 1 4 1 by the set time, a time sufficient to charge up to the capacity corresponding to the fully charged state, the charging start button 1 0 3 or the transfer start button 1 0 3 2, Even if a command com3 described later is not transmitted from the electronic timepiece 200 for some reason after being pressed, it is set for the purpose of terminating charging.
- the time set by the timer B142 is the time required to charge the battery from zero to the state in which data can be transferred (system start-up state). It is stored in station 100, but the battery capacity is not enough, and it is not ready to transfer data overnight. Or 2 Electronic clock 200 is not stored in station 100. It is set for the purpose of judging whether or not it is the case.
- the command detector 160 issues commands coml to com3 to be described later from the electronic timepiece 200 during a certain period of 30 minutes when the signal b becomes H level. It outputs a signal d that goes high when no signal is received.
- the signal d is supplied to the first input terminal of the OR gate 157 and the processing circuit 130. The detailed configuration of the command detector 160 will be described later.
- the charge / transfer switch 170 converts the first charge signal as shown in FIG. 4 (a) into a pulse signal during a period in which the signal OFF is at the L level. While output as e, when the charge start button 103 is pressed and the pulse signal CS is supplied, and when the later-described command coinl is received from the electronic timepiece 200, FIG. ), The second charging signal having the increased duty ratio is output as the signal e.
- the charge / transfer switch 170 keeps the signal e at the L level when the signal OFF transitions to the H level.
- the transistor 153 is supplied with the pulse signal STR by the charge / transfer switch 170 so that the clock signal C becomes high during the period when the signal e is at the H level.
- the switching between the drain and source is performed according to the level of LK. For this reason, a pulse signal obtained by switching the power supply voltage Vcc with the clock signal CLK is applied to the station-side coil 110, and an external magnetic field is generated to charge the electronic timepiece 200. ing.
- the AND gate 152 is closed, so that the station side coil 110 is pulled up by the power supply voltage Vcc.
- a signal S2 is induced at the terminal D of the station side coil 110.
- This signal S2 is supplied to the receiving circuit 154.
- the receiving circuit 154 demodulates the signal S2 using the clock signal CLK, and its detailed configuration will be described later.
- the decoder 155 decodes the result of demodulation by the receiving circuit 154 during a period when the signal e is at the L level.
- the electronic timepiece 200 is charged during the period when the signal e is at the H level, while the data transfer is performed during the period when the signal e is at the L level. Therefore, the charge / transfer switch 170 has the significance of switching between charging and data transfer in accordance with the level of the signal e.
- the signal from the electronic timepiece 200 includes biological information (data) such as a pulse rate and a heart rate in addition to commands coml to coni3 described later.
- biological information data
- each unit is notified that the commands coml to com3 have been received by setting the output signals coml to com3 to the H level.
- the OR gate 156 outputs the logical sum of the signals coml to com3 as a signal c. Therefore, the signal c has a significance as a signal indicating a state in which any of the commands coml to com3 is received from the electronic timepiece 200.
- the signal coml indicating that the decoding result is the command coml is supplied to the charge / transfer switch 170.
- the signal com2 indicating that the decoding result is the command com2 is supplied to the processing circuit 130 via the latch circuit 158.
- a signal com3 indicating that the decoding result is the command com3 is supplied to the third input terminal of the OR gate 157. And the logic by orgate 1 5 7 The sum is supplied to the charge / transfer switch 170 as a signal OFF.
- the signals supplied to the first to third input terminals of the OR gate 157 are obtained by first inverting the signal d of the command detector 160 and, secondly, the signal a of the ima A141. Since the signal and thirdly, the signal com3 indicating that the decoding result is the command com3, the charge 'transfer switch 170 terminates the output of the signal e when any of the following is true: It is configured.
- the case where the charge / transfer switch 170 holds the signal e at the L level and terminates the charge is as follows: (1) The charge start button 103! Alternatively, the command coml to com3 is not received from the electronic clock 200 until a period of 30 minutes elapses after the signal STR is output by pressing the transfer start button 103 2, and (2) 10 seconds after charging is started. And (3) when the signal received from the electronic clock 200 is the command com3.
- the processing circuit 130 is for causing the display unit 104 to execute various displays such as an input signal and decoded biological information.
- the AND gate 1601 outputs a logical product of the signal b and the signal c.
- the RS flip-flop including the NOR gates 1603 and 1604 inputs the logical product of the AND gate 1601 as an R signal and inputs the signal STR as an S signal.
- the inverter circuit 1605 inverts the output of the NOR gate 1604 and supplies the inverted signal to the D input terminal of the D flip-flop 1606 as a signal U1.
- the D flip-flop 1606 is reset by the signal STR and outputs the level of the input terminal D immediately before the falling of the signal b as the signal d.
- a pulse signal S TR of 1 shot is, for example, is output as shown in Figure 6 (a).
- This signal STR causes the output of NOR gate 1604 to go to L level, so that signal U1 goes to H level, while evening timer B 142 (see Fig. 3) performs the count operation. So that the signal is It goes to H level for a certain period.
- the decoder 155 does not receive the commands coml to com3 from the electronic timepiece 200, the signal c remains at the L level as shown in FIG. 6 (b). Therefore, since the signal U1 is held at the H level, the output terminal Q of the D flip-flop circuit 166 at the time when the signal b falls after a certain period of time from the output of the signal STR. The signal d output from the terminal transits to the H level.
- the command detector 160 receives at least the commands coml to com3 from the electronic timepiece 200 for a certain period from the supply of the pulse signal STR to the lapse of 30 minutes. After the period elapses, signal d is held at L level, and if no command is received, signal d is transitioned to H level.
- the configuration of the receiving circuit 154 will be described with reference to FIG. It should be noted that the configuration shown is merely an example, and is originally determined by a modulation method in data transfer.
- the signal S 2 induced at the other terminal D of the station-side coil 110 is inverted in level by the inverter circuit 154 1 and is waveform-shaped, thereby forming an oscillator circuit.
- the reset signal RST of the D flip-flops 1542 and 1543 synchronized with the clock signal CLK of 140 (see Fig. 3).
- the input terminal D of the D flip-flop 1542 is connected to the power supply voltage V c While connected to c, its output Q is connected to the input D of the next stage D flip-flop 1543.
- the output terminal Q of the D flip-flop 1543 is configured to be output as a signal S3 as a demodulation result.
- the waveform of each part in the receiving circuit 154 having the above configuration will be examined.
- the transistor 153 since the transistor 153 (see FIG. 3) does not switch, the other terminal D of the station side coil 110 pulled up is connected to the clock side coil 210. If the external magnetic field is not generated, the pull-up level is set. If the external magnetic field is generated, the pull-up level fluctuates at the induced level. Therefore, the signal S 2 induced at the terminal D is as shown in FIG. 8A, for example.
- the signal RST which is the output of the inverter circuit 1541, is output when the voltage of the signal S2 falls below the threshold value Vth, as shown in FIG. 8 (b). Goes to H level and resets D flip-flops 1542 and 1543 o At this time, D flip-flops 1542 and 1543 output the level of input terminal D immediately before rising of clock signal CLK Accordingly, the output Q 1 of the D flip-flop 1542 and the output S 3 of the D flip-flop 1542 are as shown in FIGS. 8D and 8E, respectively. That is, the output signal S 3 of the receiving circuit 154 is a signal that becomes L level during the period when the external magnetic field is generated by the clock side coil 210.
- the period during which the external magnetic field is generated by the clock side coil 210 is a period during which the data transferred from the electronic clock 200 to the station 100 is at the L level, as described later. It can be seen that S3 is obtained by demodulating data and commands from the electronic timepiece 200.
- FIG. 9 is a block diagram showing the configuration.
- one terminal P of the clock side coil 210 is connected to the positive terminal of the secondary battery 220 via the diode 245, while the other terminal of the coil 210 is connected to the other terminal. It is connected to the negative terminal of the secondary battery 220.
- a pulse signal is applied to the Yong side coil 110 (see FIG. 3) and an external magnetic field is generated, a signal is induced at one terminal P of the clock side coil 210 by the external magnetic field.
- the induced signal is rectified by the diode 245 when the transistor 253 is turned off, and is charged in the secondary battery 220.
- the configuration is such that the voltage V cc of the secondary battery 220 is used as a power source for each unit in the electronic timepiece 200.
- the charging period detection circuit 26 1 detects whether or not a signal due to an external magnetic field is induced at the terminal P, and as shown in FIG. 10 (a), the signal is induced at the terminal P. In this case, a high level signal CHR is output as shown in FIG.
- the timing generation circuit 271 generates a pulse having a constant width at regular intervals and supplies the pulse to one input terminal of the AND gate 272. Since the signal CHR from the charging period detecting circuit 26 1 is supplied to the other input terminal of the AND gate 27 2, the signal due to the external magnetic field is induced at the terminal P of the AND gate 27 2. If you open it. Therefore, as shown in FIG. 10 (c), when the signal is induced at the terminal P, a pulse having a constant width is output at regular intervals, as shown in FIG. 10 (c). Becomes
- This signal CKT is supplied to the base of the transistor 253. Also, the collector of the transistor 253 is connected to the terminal P via the resistor 254-while the emitter is grounded. For this reason, the transistor 253 is configured such that when the signal CKT is at the H level, the collector-emitter is turned on.
- the transistor 25 3 when the transistor 25 3 is turned on, the potential of the terminal P fluctuates according to the current flowing through the clock side coil 210 due to the voltage drop due to the resistor 25 4. That is, as the current flowing through the clock-side coil 210 increases, the potential level of the terminal P decreases.
- the charging current determination circuit 263 compares the potential level of the terminal P with the reference level, and if the current flowing through the clock side coil 210 is equal to or higher than the threshold current corresponding to the reference level, the H level Is output.
- the latch circuit 264 latches the output signal of the charging current determination circuit 263 at the falling edge of the signal CKT, that is, outputs a comparison result of the charging current determined during the ON period of the transistor 253. Things.
- the AND gate 281 calculates the logical product of the signal CHR of the charging period detection circuit 261 and the latch result of the latch circuit 264, and outputs the result as a signal coml.
- the AND gate 282 calculates the logical product of the signal CHR of the charging period detection circuit 261 and the inversion result of the latch result by the latch circuit 264, and outputs the result as a signal com2. .
- the battery voltage detection circuit 265 detects the terminal voltage of the rechargeable battery 220 during the period when the signal CKT is at the L level (the period when the transistor 250 is off), and It detects whether or not the secondary battery 220 is in a fully charged state (full charged state), and if the result of the detection is affirmative, outputs a signal com3 that goes high.
- the case where the signal coml is at the H level is a case where a signal is induced at the terminal P and a case where the current flowing through the clock side coil 210 is equal to or higher than the threshold value. This means that the station-side coil 110 and the clock-side coil 210 face each other at the correct position.
- the case where the signal com2 is at the H level is a case where a signal is induced at the terminal P and a case where the current flowing through the clock side coil 210 is less than the threshold value. This means that the station-side coil 110 and the clock-side coil 210 do not face each other at the correct positions, that is, they are out of position. Further, the case where the signal com3 is at the H level means that the secondary battery 220 is in a fully charged state and does not need to be charged any more.
- control circuit 230 is a kind of central processing control device having a timing function, and mainly executes the following processing. That is, first, the control circuit 230 normally displays a signal according to the mode set by the input unit 203 (not shown in FIG. 1).
- the signals coml to com3 are displayed. Recognize the states to be generated, create the commands coml to com3 corresponding to each of these states, and send them when the signal CHR transitions to L level.
- the control circuit 230 supplies the commands coml to com3 and the digital data as W1 to the transmission circuit 250. It should be noted that the digitization to be transmitted to the station 100 is assumed to be biological information such as a pulse rate and a heart rate measured by a sensor (not shown).
- the transmission circuit 250 serializes a data transmission command to be transmitted to the station 1 ⁇ 0 and outputs a switching signal obtained by bursting a signal of a constant frequency during a period when the serial data is at the L level. Things.
- the switching signal from the transmitting circuit 250 is supplied to the base of the transistor 250 through the resistor 251.
- the emitter of the transistor is connected to the positive terminal of the secondary battery 220, while the collector of the transistor is connected to one terminal P of the coil 210.
- a drive clock generation circuit 235 for generating drive clocks of a plurality of frequencies and outputting the generated drive clocks to each section of the electronic timepiece 200 is provided.
- the charging operation of the electronic timepiece 200 is performed while the signal e is at the H level, but the transfer operation is performed when the signal e is at the L level.
- the station-side coil 110 no pulse signal is applied to the station-side coil 110.
- the control circuit 230 sends data to be transmitted to the station 100 to the transmission circuit 250 following transmission of the commands coml to com3. Signal transmission to the station 100 will be started.
- the transmission circuit 250 sets the output to the H level when the data to be transmitted to the station 100 is at the H level, and sets the pulse at a constant frequency when the data to be transmitted to the station 100 is at the L level. Since it is assumed that the signal has been bursted, the transistor 252 switches during the period when the data to be transmitted is at the L level.
- a pulse signal is applied to the clock side coil 210 during a period in which the data to be transmitted to the station 100 is at the L level, thereby generating an external magnetic field. .
- This external magnetic field induces a signal having the same cycle as the pulse signal at the terminal D of the station-side coil 110.
- the signal S3 is at the L level by the receiving circuit 154 having the above configuration, and otherwise the signal is at the H level.
- a signal S3 obtained by demodulating the digital data W1 from the electronic timepiece 200 is obtained.
- the decoder 155 decodes the signal S3, and supplies the result to the processing circuit 130 if the result is digital data of biological information or the like.
- the corresponding signals coml to com3 are output.
- the station 100 can obtain a command from the electronic timepiece 200 through the digital clock.
- the user places the electronic watch 200 in the recess 101 of the station 100.
- the station-side coil 110 and the clock-side coil 210 face each other as shown in FIG. 2 and are electromagnetically coupled.
- the user starts the charge start button 103! Or when the transfer start button 1 0 3 2 is pressed, the pulse signal STR, evening timer A 1 4 1 and evening timer B 1 4 2 starts counting (Step S 1 0 1).
- the charge / transfer switch 170 outputs the first charge signal as shown in FIG. 4A as a signal e by the pulse signal STR (step S102).
- step S 103 it is determined by the inverted signal of the signal a whether or not the timer A 14 1 has completed the counting operation (step S 103). If the count operation has been completed, it is the charge start button 103! Or means that the transfer ⁇ Boyun 1 0 3 2 has elapsed 1 0 hour or more after it is depressed.
- the time set by the timer A 14 1 is sufficient to charge the rechargeable battery 220 to the capacity corresponding to the fully charged state. Normally, charging should end when the command com3 indicating full charge is received. Nevertheless, the lapse of the set time by the timer A 14 1 means that an abnormality such as a failure of the secondary battery 220 has occurred.
- the processing circuit 130 causes the display unit 104 to perform a display as shown in FIG. 13C, for example, and notifies the user of the display (step S 104). ).
- the signal OFF becomes the H level due to the inverted signal of the signal a
- the charge / transfer switch 170 holds the signal e at the L level. Therefore, when an abnormality has occurred, the charging of the electronic timepiece 200 ends.
- the charge / transfer switch 1 10 continues to output the signal e.
- the station-side coil 110 generates an external magnetic field by the switching of the transistor 153 during the period when the signal e is at the H level, while the electronic clock 20 is generated during the period when the signal e is at the L level. It enters a standby state to receive a command from 0.
- step S201 if the remaining battery level is present (Yes in step S201), during the period when the signal CKT is at the H level, that is, during the period when the transistor 253 is turned on, based on the voltage drop of the collector potential. As a result, the charging current due to the induced signal is detected (step S202), and the charging current determination circuit 263 determines whether or not the threshold value is exceeded (step S203).
- the control circuit 230 displays the fact on the display unit 204 (step S204), and sends a command com2 to notify the station 100 of this state (step S2). 0 5).
- a fully charged state corresponds to a case where the signal com3 is at the H level, and therefore, as described above, does not require any further charging. Therefore, the control circuit 230 sends a command com3 to notify the station 100 of this state (step S207).
- the control circuit 230 sends out the command coml to notify this state to the station 100 (step S208).
- commands coml to com3 are transmitted during a period in which no signal is induced at the terminal P, that is, during a period of 10 seconds when the signal e is at the L level on the station 100 side, the electronic clock 2 On the 0 side, it is executed while the signal CHR is at the L level.
- the station 100 performs the charging according to the first charging signal for a period of at least 30 minutes, which is the operation period of the timer B142. For this reason, even if the secondary battery 220 is not initially in a data transfer enabled state and the commands coml to com3 are not sent from the electronic clock 200, the battery is charged for 30 minutes, resulting in a data transfer. It will be charged up to the capacity.
- the electronic timepiece 200 is stored in the station 100, and the charge start button 103! Alternatively, after 30 minutes have passed since the transfer start button 1 0 3 2 was pressed, the secondary battery 220 becomes ready for data transfer, so any one of the commands coml to com 3 is sent out It has a configuration.
- the case where no command is transmitted to the station 100 means the case where the electronic clock 200 is not accommodated in the station 100.
- step S111 it is determined whether or not any of the commands coml to com3 has been received from the electronic timepiece 200 (step S111).
- step S112 it is determined whether or not the timer B1442 has completed the counting operation.
- the signal b During the period when is at the H level, the command detector 160 checks whether or not the signal c has reached the H level.
- the case where no command coml-com3 is received even after the timer B 1442 completes the count operation means that, as described above, the electronic clock 200 is not accommodated in the station 100 °. This is the case when the signal d from the command detector 16 becomes H level.
- the processing circuit 130 causes the display section 104 to perform a warning display as shown in FIG. 13 (b) (step S10). 1 13), inform the user to that effect.
- the processing procedure returns to step S102 to continue charging, and the transmission of the signal e is continued.
- the determination in the steps S111 and S112 is performed. It is to be executed repeatedly. As a result, in the case of 1 or 2, that is, 1 the electronic watch 200 is stored in the station 100, but the battery capacity is insufficient and the data transfer is not possible. It is possible to substantially determine whether or not the electronic timepiece 200 is not housed in the station 100.
- the station 100 in the standby state receives any command from the electronic timepiece 200
- the received command is decoded by the decoder 150 (step S11). Four ) .
- step S115 it is determined whether or not the first pressed button is the charge start button 103i (step S115).
- the charge / transfer switch 170 receiving the signal coml determines whether or not the signal CS has been supplied before. If this determination result is positive, the charge / transfer switch 170 changes the signal e to be transmitted from the first charge signal shown in FIG. 4 (a) to the second charge signal shown in FIG. 4 (b). Switch to signal. Then, the processing procedure returns to step S103 in order to continue charging.
- charging is performed during the H level period of the signal e, while data transfer is performed during the L level period of the signal e.
- the period during which the signal e as the second charging signal is at the H level is longer than that of the first charging signal. Therefore, when charging is instructed in a state where the station side coil 110 and the watch side coil 210 face each other at a correct position, a command for checking the charging state is issued. While the frequency of reception is reduced, the charging period is prolonged, so that the charging efficiency of the electronic timepiece 200 is improved.
- the received command is a COML, if been button transfer start button 1 0 3 2 pressed initially de Isseki transfer Step S 1 2 1 to S 1 2 3 to be described later is executed .
- the received command is com3
- the charge / transfer switch 170 that has been supplied with the signal OFF by the signal com3 determines whether or not the signal CS has been supplied before. If the result of this determination is affirmative, then there is no need to charge the secondary battery 220, and the charge / transfer switch 170 holds the signal e at the L level. As a result, the unnecessary charging operation ends.
- a received command is com3, button pressed initially is equal start button 1 0 3 2 transfer, de Isseki transfer Step S 1 2 1 to S 1 2 3 to be described later is executed .
- the processing circuit 130 that has received the signal com2 causes the display unit 104 to display, for example, a warning display as shown in FIG. 13 (a) (step S111). 8) Notify the user to that effect.
- step S119 it is determined whether or not the button pressed first is the charge start button 1 ⁇ 3 t (step S119). Specifically, the charge / transfer switch 170 determines whether or not the signal CS has been supplied before. However, even if the transfer button 1 0 3 2 is pressed, the period signal e is at the H level for charging, and in the signal e is at the L level period for the data transfer, it Re run respectively Therefore, there is no need for the charge / transfer switch 170 to switch the signal e or to keep the signal e at the L level. That is, even if the command com2 is received, the charge / transfer switch 170 does not substantially determine whether or not the signal CS has been supplied before.
- the button pressed first is the charge start button 103! If this is the case, charging is performed with insufficient current in this state, but since charging itself is executable, the processing procedure returns to step S102 so as to continue charging with the first charging signal. .
- the digital data transmitted following the commands coml to com3 is received by the receiving circuit 154, decoded by the decoder 155, and transferred to the processing circuit 130 (step S121). The process is repeated until the process ends (step S122).
- the processing circuit 130 causes the display unit 104 to perform a display as shown in FIG. 13D, for example (step S122), and performs processing based on the received digital data. Display is made on the display section 104.
- the processing circuit 130 stops the supply of the signal e to the charge / transfer switch 130 by a line not shown in FIG. 3, and terminates the charge / data transfer. Note that a configuration may be adopted in which the processing procedure is returned to step S102 and charging is continued.
- the signal com2 is in the open period.
- the warning display shown in FIG. 13A is performed on the display unit 104. Also, when the secondary battery 220 is fully charged and the command com3 is received, the signal e goes low thereafter, and the charging operation ends.
- the station-side coil 110 and the watch-side coil 210 are not correctly opposed to each other and are displaced, it is detected, and 13a is displayed as shown in Fig. 13 (a) .c Also, if the station side coil 110 and the clock side coil 210 face each other at the correct position, the charging state is checked. While the frequency of receiving commands for charging is reduced, the charging period is prolonged, so that the charging efficiency of the electronic timepiece 200 is improved.
- the first embodiment it is possible to detect the displacement between the station-side coil 110 and the clock-side coil 210 and the fact that the electronic timepiece 200 is not accommodated in the station 100 in a non-contact manner. In addition, it is possible to perform charging / decoding overnight transfer control.
- the data transfer is executed after the secondary battery 220 of the electronic timepiece 200 is charged for a certain period of time by generating an external magnetic field before the data transfer. It is possible to prevent a situation where data cannot be transferred due to a voltage drop of the secondary battery 220.
- the overnight transfer in the first embodiment is performed only in one direction from the electronic timepiece 200 to the station 100, it is needless to say that the transfer may be in the direction from the station 100 to the electronic timepiece 200.
- the station 100 modulates according to the data to be transferred, while the electronic watch 200 demodulates according to the modulation method.
- a known technique may be applied to the modulation-demodulation.
- the position shift and the absence of the electronic timepiece are performed by the display unit 104 provided on the station 100 side.
- the display unit 104 provided on the station 100 side.
- not only character display on the display unit but also lighting and blinking by an LED or the like may be used.
- the present invention is not limited to those that appeal to sight, and may be those that appeal to hearing, such as voices and alarms. That is, the announcement referred to in the present application suffices if it appeals to the human senses.
- the charge and data transfer execution distributions are changed by extending the charging period if there is no misalignment, but the configuration is to shorten the data transfer period. It is also possible to adopt a configuration in which both execution periods are changed.
- the value of the charging current itself detected by the electronic timepiece 200 may be transferred to the station 100, and the execution distribution of the charging and data transfer may be controlled to the floor without permission according to the charging current value.
- the predetermined relationship referred to in the present application includes both a case where the two coils are displaced and a case where the two coils are correctly opposed.
- the electronic timepiece 200 when the signal e becomes L level, the electronic timepiece 200 performs the signal transfer.However, when the station 100 transmits the communication start command to the electronic timepiece 200, the electronic timepiece 200 becomes Ready to send It is also possible to adopt a configuration in which signal transfer is performed by recognizing that.
- the charging operation and the signal transfer operation can be clearly distinguished from each other, and when the signal transfer is desired during the charging operation, or when the station 100 misrecognizes the external noise as the received signal and malfunctions. Is also gone.
- the driving clock generation state of the driving clock generation circuit 235 of the electronic timepiece 200 has not been described, but the configuration is such that the frequency of the driving clock at the time of signal transfer is increased. It is possible to secure high-speed data transfer processing and to reduce power consumption during normal operation.
- the station 100 is used as the first device, and the electronic timepiece 200 is used as the second device or the other device.
- these distinctions are essentially negligible. This means that it can be applied to all electronic devices that perform power transfer and signal transfer. For example, electric toothbrush, electric shave, cordless phone ⁇ mobile phone, personal handy phone, mobile phone, PDA (Personal
- the present invention can be applied to a device to be charged including a secondary battery such as a secondary battery and the charging device.
- the difference between the station-side coil 110 and the clock-side coil 210 is determined.
- the current flowing through the watch-side coil 210 decreases as the battery voltage of the secondary battery 220 rises, as shown in Fig. 15, It may not be possible to determine whether the current phenomenon is due to displacement or to a rise in the battery voltage of the secondary battery. You.
- the second embodiment is an embodiment for more accurately determining the presence or absence of a position shift based on the charging current and the voltage of the secondary battery.
- FIG. 16 the same parts as those of the electronic timepiece of the first embodiment in FIG. 9 are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the electronic timepiece 20 OA of the second embodiment is different from the electronic timepiece 200 of the first embodiment in that a threshold table for previously storing a threshold current corresponding to a detection voltage is used instead of the charging current determination circuit 263.
- the charging current determination circuit 263 ′ for determining whether the current flowing through the clock side coil 210 exceeds the threshold current corresponding to the detected battery voltage, and the detection voltage for the charging current determination circuit 263 ′.
- the battery voltage detection circuit 265 'that outputs the signal VDET, and whether or not the secondary battery 220 is in a fully charged state is determined based on the detected voltage signal VDET, and the signal com3 is set to the "H" level when fully charged. And a full charge detection circuit 290.
- the threshold value table will be described with reference to FIG. 15 and FIG. As shown in FIG. 15, for example, when the battery voltage of the secondary battery 220 is 4 [V], the charging current is 10 [mA], and when the battery voltage of the secondary battery 220 is 2 [V]. The charging current is 25 [mA].
- the threshold value table is written and stored in a nonvolatile memory such as a ROM or a rewritable nonvolatile memory such as an EEPROM.
- the user stores the electronic watch 20 OA in the recess 101 of the station 100. Let it. As a result, the station-side coil 110 and the watch-side coil 210 face each other as shown in FIG. 2 and are electromagnetically coupled. Thereafter, the charging start button 103 by the user or the transfer start button 1 0 3 2, is pressed, the pulse signal S TR, evening Timer A 14 1 and evening timer B 142 starts counting (Step S 10 1). Further, the charging / transfer switch 170 outputs the first charging signal as shown in FIG. 4A as a signal e by the pulse signal STR (step S102).
- step S103 it is determined by the inverted signal of the signal a whether or not the timer A141 has completed the counting operation. If the count operation has ended, its Re means that has passed the charging start button 103, or the transfer start button 103 2 10 hours or more after it is depressed.
- the time set by the timer A 141 is sufficient to charge the rechargeable battery 220 to a capacity corresponding to the fully charged state. Then, charging should be completed by receiving the command com3 indicating that the battery is fully charged. Nevertheless, elapse of the time set by the timer A 141 indicates that an abnormality such as a failure of the secondary battery 220 has occurred.
- the processing circuit 130 causes the display unit 104 to perform a display as shown in FIG. 13C, for example, and notifies the user of the display (step S104). Also, since the signal OFF becomes H level due to the inverted signal of the signal a, the charge-transfer switch 170 holds the signal e at L level. Therefore, when an abnormality has occurred, charging of the electronic timepiece 20 OA is terminated.
- the charge / transfer switch 170 continues to output the signal e.
- the station side coil 110 generates an external magnetic field by switching by the transistor 153, while the signal e is at the L level, and the command from the electronic watch 20 OA is generated. It is in a standby state to receive the.
- step S201 if the remaining battery level is present (Yes in step S201), during the period when the signal CKT is at the H level, that is, during the period when the transistor 253 is turned on, the voltage is induced based on the voltage drop of the potential of the terminal P.
- the battery voltage of the secondary battery 220 is detected by the battery voltage detection circuit 265, and the detection voltage signal VDET corresponding to the detected battery voltage is output. It is output to the judgment circuit 263 and the full charge detection circuit 290 (step S209).
- the charging current determination circuit 263 with reference to the threshold value table, obtains a threshold current corresponding to the detected voltage signal VDET, and determines whether the detected charging current is equal to or greater than the threshold current. Is determined (step S203).
- the threshold current is equal to 12 CmA].
- the circuit 263 determines whether the detected charging current is 12 [mA] or more.
- the control circuit 230 displays the fact on the display unit 204 (step S204), and sends a command com2 to notify the station 100 of this state (step S205).
- step S206 whether or not the secondary battery 220 is in a fully charged state is determined by the full charge detection circuit 290 based on the detection voltage signal VDET (step S206). .
- a fully charged state corresponds to a case where the signal com3 is at the H level, and therefore, as described above, does not require any further charging. Therefore, the control circuit 230 sends a command com3 to notify the station 100 of this state. Yes (Step S207) o
- the control circuit 230 sends out the command coml to notify this state to the station 100 (step S208).
- commands coml to com3 are transmitted during a period in which no signal is induced at the terminal P, that is, during a period of 10 seconds when the signal e is at the L level on the station 100 side, the electronic clock 2 0 0 On the A side, this is executed while the signal CHR is at the L level.
- the station-side coil 110 and the clock-side coil 210 are not correctly opposed to each other and are misaligned, it is detected. At the same time, a warning to that effect is displayed.
- the station-side coil 110 and the clock-side coil 210 are not affected by the voltage of the rechargeable battery 220 as in the first embodiment. If they are not facing each other correctly and are misaligned, it will be detected and a warning will be displayed.
- the station-side coil 110 and the watch-side coil 210 face each other at the correct position, the frequency of receiving a command to check the charging state decreases, while the charging is performed. , The charging efficiency of the electronic watch 20 OA is improved.
- the displacement of the station-side coil 110 and the clock-side coil 210 and the fact that the electronic timepiece 20 OA is not accommodated in the station 100 indicate the effect of the battery voltage of the secondary battery. It is possible to perform non-contact detection without receiving it, and to perform charging and data transfer control.
- Fig. 29 shows the charge / discharge characteristics of a general secondary battery. As shown in this figure, the terminal voltage of the secondary battery during charging is almost constant. Furthermore, the terminal voltage of the secondary battery during charging does not show a true value as described above.
- the charging current E i is expressed by the following equation.
- R in this equation is the resistance associated with constant-voltage charging.
- the terminal voltage Eve of the secondary battery approaches E, so that the charging current Ei gradually decreases. Therefore, when the transition from discharging to charging occurs, the voltage rise of the secondary battery (the voltage drop when focusing on the transition from charging to discharging), which is represented by the product of the internal resistance Re and the charging current Ei, is also Become smaller.
- the capacity F of the secondary battery can be expressed as a function F (V) with its terminal voltage V as an argument.
- FIG. 20 is a block diagram showing the configuration.
- the same parts as those in the first embodiment in FIG. 9 are denoted by the same reference numerals.
- one terminal ⁇ of the clock side coil 210 is connected to the positive terminal of the secondary battery 220 via the diode 245, while the clock side coil 210 Is connected to the negative terminal of the secondary battery 220. Therefore, when a pulse signal is applied to the station side coil 110 (see Fig. 3) and an external magnetic field is generated, the external magnetic field induces a signal at one terminal ⁇ of the clock side coil 210. You. The induced signal is rectified by the diode 245 and then charged into the secondary battery 220.
- the configuration is such that the voltage V cc of the secondary battery 220 is used as a power source for each unit in the electronic timepiece 200B.
- the charging period detection circuit 261 detects whether or not a signal is induced at the terminal P by an external magnetic field. Here, as shown in Fig. 21 (a), the timing T. Thereafter, when a signal is induced at the terminal P at regular intervals, a signal CHR that goes to the H level is output as shown in FIG.
- the battery voltage detection circuit 281 detects the voltage value E v between both terminals of the rechargeable battery 220 and obtains a digital value. Is output.
- the register 282 temporarily stores the voltage value Ev detected by the battery voltage detection circuit 281 at the falling of the signal CHR. Therefore, the resistor 282 is configured to store the voltage value E ve of the secondary battery 220 during the period when the signal is induced at the terminal ⁇ , that is, during the charging period.
- the register 283 temporarily stores the voltage value Ev detected by the battery voltage detection circuit 281 at the rise of the signal CHR. Therefore, the resistor 280 stores the voltage value E vd of the rechargeable battery 220 immediately before the signal is induced at the terminal P, that is, 10 seconds after the charging is interrupted. It is configured to
- the subtractor 284 subtracts the input value to the input terminal B from the input value to the input terminal A.
- the value temporarily stored in the register 282 is supplied to the input terminal A of the subtracter 284, and the value temporarily stored in the register 283 is supplied to the input terminal B.
- the subtracter 284 is configured to output a voltage increase ⁇ due to the internal resistance of the secondary battery.
- the conversion table 285 converts ⁇ E v into battery capacity F and outputs the result.
- the correspondence is as shown in FIG.
- the voltage rise ⁇ ⁇ ⁇ (from the time of charging to the time of discharging) during the transition from discharging to charging.
- the smaller the value of ⁇ the greater the capacity of the secondary battery.
- control circuit 230 is a kind of central processing control device having a temporary storage memory, an arithmetic unit, and the like.
- a display for example, the current time
- Display etc.
- the control circuit 230 firstly converts the conversion signal. It is determined whether or not the capacity F converted and output by the table 28.5 corresponds to the capacity in the fully charged state. Secondly, a command coml or com3 according to the determination result is created, and the signal CHR is set to the L level. sent to the period, the third, after delivery of the command, if the transfer ⁇ button 1 0 3 than 2 is pressed, a process of outputting a daisy evening Lud Isseki to be transmitted to the station 1 0 0 Execute.
- the digital data to be transmitted to the station 100 is assumed to be biological information such as a pulse rate and a heart rate measured by a sensor (not shown).
- the meaning of the command coml or com3 will be described later.
- the transmission circuit 250 serializes a data command to be transmitted to the station 100 and outputs a switching signal obtained by bursting a signal of a constant frequency during a period when the serial data is at the L level. It is.
- the switching signal from the transmitting circuit 250 is supplied to the base of the transistor 252 via the resistor 251.
- the emitter of the transistor is connected to the positive terminal of the secondary battery 220, while the collector of the transistor is connected to one terminal P of the coil 210.
- the signal CHR goes to the H level during the period in which the signal is induced, and the secondary battery 220 is charged during this period, as shown in FIG.
- commands coml and com3 and digital data are transferred as shown in FIG.
- the user causes the electronic timepiece 200B to be housed in the recess 101 of the station 100.
- the station side coil 110 and the watch side coil 210 are Since they face each other as shown in FIG. 2, they are electromagnetically coupled.
- Step S 10 1 the charging start button 1 03 by the user or the transfer start button 103 2, is pressed, the pulse signal S TR, evening Timer A 14 1 and evening timer B 142 starts counting (Step S 10 1) Also, based on the pulse signal S TI, the charge / transfer switch 170 outputs the first charge signal as shown in FIG. 4A as a signal e (step S102).
- step S103 whether or not the timer A 141 has completed the counting operation is determined by the inverted signal of the signal a (step S103). If the count operation has been completed, it is the charge start button 103! Or means that the transfer start button 103 2 has passed 10 hours or more after it is depressed. For this reason, the processing circuit 130 causes the display unit 104 to perform a display as shown in FIG. 26B, for example (step S104). Also, since the signal 0 FF becomes H level due to the inverted signal of the signal a, the charge / transfer switch 170 holds the signal e at L level. Therefore, the charging of the electronic timepiece 200B is completed.
- charging / transfer switch 170 outputs the first charging signal as signal e.
- the station-side coil 110 generates an external magnetic field by switching by the transistor 153 during the period when the signal e is at the H level
- the electronic clock 200 B is generated during the period when the signal e is at the L level. It is in a standby state to receive a command from.
- step S201 if the remaining battery level is present (Yes in step S201), the voltage value Eve at the time of charging is temporarily stored in the register 282 (step S202), and when the charging is interrupted in the The voltage value Evd is temporarily stored (Step S203), and the subtractor 284 reads out the voltage value Eve and the voltage value Evd stored in each register, respectively, and subtracts the latter from the former. And secondary The voltage rise ⁇ due to the internal resistance of the battery 220 is output (step S204).
- the conversion table 285 converts the voltage rise ⁇ into a capacity F and outputs it.
- the current capacity of the secondary battery 220 is estimated from the voltage rise ⁇ ⁇ ⁇ (step S205).
- the control circuit 230 determines whether or not the capacity F is a predetermined capacity, for example, a capacity corresponding to a fully charged state (step S206), and if the determination result is affirmative. Then, since it is not necessary to charge the battery thereafter, a command com3 is sent to notify the station 100 of the fact (step S207). If this determination result is negative, Since the charging needs to be continued, a command coml is sent to notify the station 100 of the fact (step S208).
- a predetermined capacity for example, a capacity corresponding to a fully charged state
- the command coml or com3 is transmitted during a period in which no signal is induced at the terminal P, that is, during a period of 10 seconds when the signal e is at the L level on the station 100 side. 0 0 On the B side, this is executed during the period when the signal CHR is at the L level.
- the electronic timepiece 200 B firstly outputs the voltage value E ve of the secondary battery 220 during charging and the secondary battery 200 during interruption of charging. Secondly, the voltage value E vd of 20 is detected, and secondly, the voltage rise ⁇ ⁇ ⁇ due to the internal resistance of the secondary battery 220 is obtained by subtracting the latter from the former, and thirdly, this voltage Fourth, the battery capacity is estimated from the increase ⁇ ⁇ V. Fourth, it is determined whether or not the estimated battery capacity is a predetermined capacity, and a command corresponding to the determination result is transmitted. .
- the station 100 performs the charging according to the first charging signal for at least a period of 30 minutes, which is the operation period of the timer 142. For this reason, even if the secondary battery 220 is not in the data transfer enabled state at first and the command coml or com3 is not sent from the electronic clock 200B, it is charged for 30 minutes. It will be charged up to the capacity to be transferred.
- the electronic timepiece 2 0 0 B are housed in the station 1 0 0, after the charging start button 1 0 3 or the transfer start button 1 0 3 2, has elapsed is pressed 3 0 minutes, the secondary battery 2 Since 20 is ready for data transfer, the command coml or co One of m3 is transmitted.
- the case where no command is transmitted to the station 100 means that the electronic clock 200B is not accommodated in the station 100.
- step S111 it is determined whether or not either the command coml or com3 has been received from the electronic timepiece 200B.
- step S112 it is determined whether or not the timer B1442 has completed the count operation.
- the command detector 160 checks whether or not the signal c has changed to the H level during the 30 minute period when the H level is set.
- the processing circuit 130 causes the display unit 104 to perform a warning display as shown in FIG. 1 1 3) Notify the user to that effect.
- the charge / transfer switch 170 holds the signal e at L level. For this reason, the unnecessary charging operation in the case where the electronic timepiece 200B is not stored is ended.
- step S102 the processing procedure returns to step S102 to continue charging, and the transmission of the first charging signal is continued.
- step S114 if any command is received from the electronic timepiece 200 #, the received command is decoded by the decoder 155 (step S114).
- step S115 the charge / transfer switch 170 receiving the signal coml determines whether or not the signal CS has been supplied before. If the result of this determination is affirmative, the charge / transfer switch 1 Step 70 switches the signal e to be transmitted from the first charging signal as shown in FIG. 4 (a) to the second charging signal as shown in FIG. 4 (b). And to continue charging
- the processing procedure returns to step S103.
- charging is performed during the H level period of the signal e, while data transfer is performed during the L level period of the signal e.
- the period during which the signal e as the second charging signal is at the H level is longer than that of the first charging signal. Therefore, the transmission of the second charging signal reduces the frequency of receiving a command as a result of checking whether or not the charging time t has elapsed, while prolonging the charging period.
- the charging efficiency of B is improved.
- the received command is a COML
- button pressed initially is if transfer ⁇ button 1 0 3 2
- de Isseki transfer Step S 1 2 1 to S 1 2 3 to be described later is executed You.
- step S117 it is determined whether the first pressed button was the charging start button 103i (step S117). Specifically, the charge / transfer switch 170 supplied with the signal OFF by the signal com3 determines whether or not the signal CS has been supplied before. If the result of this determination is affirmative, there is no further need to charge the secondary battery 220, and the charge / transfer switch 170 holds the signal e at the L level. As a result, the unnecessary charging operation for charging the battery with the desired capacity or more is completed.
- Step S 1 2 1 to S 1 2 3 is executed.
- the digital data transmitted following the commands coml and com3 is received by the receiving circuit 154, decoded by the decoder 155, and transferred to the processing circuit 130 (step S1). 2 1) are repeated until the process is completed (step S 122). Then, when this transfer is completed, the processing circuit 130 causes the display section 104 to perform, for example, a display as shown in FIG. 26 (c) (step S122), and Display based on the selected digital data To be performed.
- the processing circuit 130 stops the supply of the signal e to the charge / transfer switch 130 by a line not shown in FIG. 3, and terminates the charge / data transfer.
- the charge start button 1 0 3! Alternatively, when the transfer start button 1 0 3 2 is pressed, the first charging signal is transmitted from the station 1 0 0 as a signal e, so that the secondary battery 2 2 0 of the electronic timepiece 2 0 B is intermittently charged. Is done.
- the electronic timepiece 200 B calculates the internal resistance of the secondary battery 220 by subtracting the voltage value E vd at the time of charging interruption from the voltage value E ve of the secondary battery 220 during charging. The voltage rise ⁇ ⁇ caused by the above is obtained, the battery capacity is estimated from the voltage rise ⁇ , and it is determined whether or not the estimated battery capacity is a predetermined capacity.
- the command coml is sent to the station 100, and as a result, the second charging signal (see FIG. 4 (b)) switches between charging and data transfer. Since the electronic timepiece 200B is used as the signal e, the charging efficiency of the electronic timepiece 200B is improved.
- the command com3 is sent to the station 100, and as a result, the signal e is held at the L level, so that charging ends. .
- the battery capacity is estimated from the voltage increase ⁇ Ev obtained by intermittently charging the battery, and the estimated capacity becomes a desired capacity, for example, a capacity corresponding to a fully charged state.
- a desired capacity for example, a capacity corresponding to a fully charged state.
- the charging is performed intermittently, and the voltage rise ⁇ ⁇ of the secondary battery 220 when the transition from the discharging to the charging is obtained, and the voltage rising ⁇
- the battery capacity was estimated from ⁇ ⁇ .
- the battery capacity is estimated from this voltage value E vd by focusing on the fact that the voltage value E vd itself at the time of charging interruption corresponds to the battery capacity. It is. Therefore, the configuration is such that, as shown in FIG. 27, the voltage value E vd temporarily stored in the register 283 is supplied to the control circuit 230.
- control circuit 230 stores the capacity function F (V) of the secondary battery 220 in the form of a table or a mathematical expression in addition to the functions of the third embodiment. It also has functions.
- FIG. 28 is a flowchart showing the operation of the electronic timepiece 200C according to the fourth embodiment.
- step S203 the control circuit 230 substitutes the voltage value E vd for the capacitance function F (V) to obtain the capacitance F (step S 2 5 1), and this capacitance F is a predetermined capacitance, for example, It is determined whether or not the capacity is equivalent to the fully charged state (step S206). If the determination result is affirmative, the command com3 is transmitted (step S207), and If the determination result is negative, a command coml is sent (step S208).
- the fourth embodiment when the battery capacity estimated from the voltage value E vd reaches a predetermined capacity, for example, a capacity corresponding to a fully charged state, charging is terminated at that point. Therefore, the inconvenience of performing unnecessary charging is eliminated as in the first embodiment.
- the second charging signal (see FIG. 4 (b)) is used as the signal e, so that the charging efficiency of the electronic watch 200C is improved. The same applies to points.
- the charging is performed intermittently, and the voltage rise of the secondary battery 220 at the time of transition from discharging (a state in which the electronic device is operating) to charging is calculated.
- Ev is obtained by subtracting the voltage at a point in time after a lapse of a certain time from the point in time of the charge interruption from the voltage just before the interruption of the charge, and estimating the battery capacity from the voltage increase ⁇ . It had become.
- charging is performed intermittently, and the rechargeable battery 220 at the time of transition from discharging (the state in which the electronic device is operating) to charging is changed.
- the voltage rise ⁇ EV is obtained by subtracting the voltage immediately after the charge restart from the voltage immediately before the restart of charge, and the battery capacity is estimated from the voltage rise ⁇ .
- the charging is performed intermittently, and the voltage rise of the secondary battery 220 when the charging is changed from the discharging (the state in which the electronic device is operating) to the charging is performed.
- ⁇ V was obtained by subtracting the voltage at a point in time after a lapse of a certain time from the point in time of the charge interruption from the voltage immediately before the interruption of the charge, and the battery capacity was estimated from the voltage increase ⁇ .
- the voltage of the secondary battery 220 at a point in time when a predetermined time has elapsed since the interruption of the charging, and the voltage of the secondary battery 220 just before the restart of the charging is also based on the point corresponding to the battery capacity, and the battery capacity is estimated from this voltage drop ⁇ ⁇ ⁇ '.
- FIG. 32 shows a schematic configuration block diagram of an electronic timepiece 200D of the sixth embodiment.
- the same portions as those in the third embodiment in FIG. 20 are denoted by the same reference numerals, and the detailed description thereof will be referred to.
- the different parts will be mainly described.
- the register 282 temporarily stores the voltage value ⁇ ⁇ detected by the battery voltage detection circuit 281 at the fall of the signal CHR (see FIG. 33). . Therefore, the resistor 282 becomes the secondary current when a certain time (elapsed time may be zero) has passed since the end of the signal induction at the terminal ⁇ ⁇ ⁇ ⁇ , that is, when a certain time has passed since the interruption of charging. It is configured to store the voltage value E vc, of the battery 220.
- the register 283 is configured to store the time point when a signal is induced at the terminal ⁇ , that is, the voltage value E vd ′ of the secondary battery 220 immediately before the start of charging.
- the subtractor 284 subtracts the input value to the input terminal B from the input value to the input terminal A.
- the value temporarily stored in the register 282 is supplied to the input terminal A of the subtracter 284, and the value temporarily stored in the register 283 is supplied to the input terminal B. Have been. Therefore, the subtracter 284 is configured to output the voltage drop ⁇ '.
- the conversion table 285 is for converting ⁇ ′ into a battery capacity F and outputting the same, and the correspondence is as shown in FIG.
- the correspondence shown in FIG. 23 is of a nature that should be originally determined according to the characteristics of the secondary battery 220.
- the battery capacity is estimated from the voltage drop ⁇ ′ obtained by performing the charging intermittently, and the estimated capacity is a desired capacity, for example, the full charge state. Since the charging is terminated when the capacity corresponding to is reached, the inconvenience of unnecessary charging is eliminated.
- the timing at which the voltage value E vd 'is stored is not limited to immediately before the start of charging, but may be a certain time before the start of charging (but after sampling the voltage value E vc,).
- the voltage value E vd ' is stored after a certain period of time has elapsed from the charging suspension start time.
- the overnight transfer is performed only in one direction from the electronic timepiece 200 to the station 100, but the data transfer from the station 100 to the electronic timepiece 200 is performed in one direction. Needless to say, it may be oriented.
- the station 100 modulates according to the data to be transferred, while the electronic timepiece 200 may demodulate according to the modulation method.
- a known technique may be applied to the modulation and demodulation.
- the configuration is such that the capacity of the secondary battery 220 is estimated on the electronic timepiece 200 side from the detected voltage values Evd and Eve, or only from the voltage value Evd.
- the voltage values Ev and Eve themselves are transferred to the station 100, and the capacity of the secondary battery 220 is estimated on the station 100 side in accordance with these values, and the transfer of the charging data is controlled. It is good also as composition. That is, the main body that estimates the capacity of the secondary battery 220 may be the electronic timepiece 200 or the station 100.
- the voltage value Eve at the time of charging and the voltage value may be respectively detected by separate battery voltage detection circuits. That is, the first and second voltage detecting means referred to in the present application refer to both the case where they are the same and the case where they are separately and independently. However, the configuration in which detection is performed by one battery voltage detection circuit 281 as in the above embodiment is more advantageous in that detection errors due to different detection circuits do not occur.
- the charging and the execution transfer of the data transfer were changed by extending the charging period during charging, but the data transfer period was shortened.
- a configuration in which the execution periods are changed, a configuration in which both execution periods are changed, and an execution distribution of charging and data transfer may be controlled in a stepless manner.
- the station 1 is used as a charging device.
- the electronic timepiece 200 has been described as an example of the device to be charged 200, the present invention is applicable to all electronic devices that perform power transfer.
- the transfer request is output from the electronic timepiece.
- the transfer request may be made from the information processing device connected to the station directly or via the network.
- the electronic timepiece 200 makes a predetermined overnight transfer request, Transfer the corresponding data (for example, a new operating system for electronic clocks, various data for control, etc.) from the station 100 or an information processing device connected to the station directly or via a network. It is also possible to configure as follows.
- a receiving circuit 238 is provided on the electronic timepiece 200 side, and the electronic timepiece 200 is connected to a station as shown in FIG. 36 (a). Sends a transfer request request D REQ requesting the transfer of predetermined data.
- the information processing device 300 transmits D REQ1 for requesting transmission of the data DD corresponding to the transfer request data D REQ.
- the information processing device 300 transfers the requested DD to the electronic timepiece 200 via the station 100.
- a transfer request data D REQ requesting a predetermined data transfer is transmitted to the station, and in response to this, the station 100 performs the transfer.
- electromagnetic coupling between two or more devices separated from each other such as a portable electronic device and a charging device thereof, with coils disposed at positions facing each other, respectively. Therefore, when power is transferred, it is possible to detect the displacement of both coils and the absence of the device to be charged without contact.
- the capacity of the charged secondary battery can be estimated with a simple configuration. Furthermore, when the charging device charges the secondary battery to the device to be charged in a non-contact manner between two or more devices separated from each other by electromagnetic coupling with coils disposed at positions facing each other. Even in this case, the capacity of the secondary battery and the like can be notified to the charging device in a non-contact manner, and the desired capacity can be charged.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electromechanical Clocks (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99926180A EP1213818B1 (en) | 1998-03-24 | 1999-03-24 | Electronic device method, method of controlling electronic device, method of estimating charge in rechargeable battery, and method of charging rechargeable battery |
| DE69936467T DE69936467T2 (de) | 1998-03-24 | 1999-03-24 | Elektronisches vorrichtungsverfahren,verfahren zur regelung einer elektronischen vorrichtung, verfahren zur bestimmung der ladung in wiederaufladbarer batterie sowie verfahren zur ladung einer wiederaufladbaren batterie |
| JP54238099A JP3826407B2 (ja) | 1998-03-24 | 1999-03-24 | 電子機器、電子機器の制御方法、二次電池の容量推定方法および二次電池の充電制御方法 |
| US09/424,204 US6316909B1 (en) | 1998-03-24 | 1999-03-24 | Electronic device, control method for electronic device, recharge-rate estimating method for secondary battery, and charging control method for secondary battery |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7603498 | 1998-03-24 | ||
| JP10/76034 | 1998-03-24 | ||
| JP7603398 | 1998-03-24 | ||
| JP10/76033 | 1998-03-24 | ||
| JP27897198 | 1998-09-30 | ||
| JP10/278971 | 1998-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999049552A1 true WO1999049552A1 (en) | 1999-09-30 |
Family
ID=27302029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/001471 Ceased WO1999049552A1 (en) | 1998-03-24 | 1999-03-24 | Electronic device, method of controlling electronic device, method of estimating charge in rechargeable battery, and method of charging rechargeable battery |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6316909B1 (ja) |
| EP (1) | EP1213818B1 (ja) |
| JP (1) | JP3826407B2 (ja) |
| CN (1) | CN1272237A (ja) |
| DE (1) | DE69936467T2 (ja) |
| TW (1) | TW474042B (ja) |
| WO (1) | WO1999049552A1 (ja) |
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| EP1302822A1 (fr) * | 2001-10-15 | 2003-04-16 | The Swatch Group Management Services AG | Chargeur électrique pour objet portatif tel que, notamment, une pièce d'horlogerie du type montre-bracelet |
| JP2007097358A (ja) * | 2005-09-30 | 2007-04-12 | Toshiba Corp | 情報収集装置及び方法 |
| US8060011B2 (en) | 2007-02-20 | 2011-11-15 | Seiko Epson Corporation | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
| JP2009033781A (ja) * | 2007-06-29 | 2009-02-12 | Seiko Epson Corp | 送電制御装置、送電装置、電子機器及び無接点電力伝送システム |
| US7804197B2 (en) | 2007-06-29 | 2010-09-28 | Seiko Epson Corporation | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
| JP2014534801A (ja) * | 2011-10-25 | 2014-12-18 | キム ソンソプKIM, Seon Seob | 無接点充電システム及び無接点充電方法 |
| KR101747064B1 (ko) * | 2014-02-25 | 2017-06-14 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
| US9738170B2 (en) | 2014-02-25 | 2017-08-22 | Nissan Motor Co., Ltd. | Wireless power supply system and power transmission device |
| US9845019B2 (en) | 2014-02-25 | 2017-12-19 | Nissan Motor Co., Ltd. | Wireless power supply system and power transmission device |
| KR101816471B1 (ko) * | 2014-02-25 | 2018-01-08 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
| KR101817455B1 (ko) * | 2014-02-25 | 2018-01-11 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
| KR101860695B1 (ko) | 2015-01-29 | 2018-05-23 | 닛산 지도우샤 가부시키가이샤 | 주차 지원 시스템 및 주차 지원 방법 |
| EP3580827A1 (de) * | 2017-02-07 | 2019-12-18 | Charging Energy Partner Gmbh | Gerät und verfahren zum laden eines endgeräts |
| WO2025263203A1 (ja) * | 2024-06-20 | 2025-12-26 | 株式会社村田製作所 | ワイヤレス給電システム装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1213818A1 (en) | 2002-06-12 |
| US6316909B1 (en) | 2001-11-13 |
| CN1272237A (zh) | 2000-11-01 |
| DE69936467T2 (de) | 2008-03-13 |
| TW474042B (en) | 2002-01-21 |
| JP3826407B2 (ja) | 2006-09-27 |
| EP1213818B1 (en) | 2007-07-04 |
| EP1213818A4 (en) | 2002-10-31 |
| DE69936467D1 (de) | 2007-08-16 |
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