JPH0969865A - Digital cordless telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically change a mode to a mode with high use frequency and to properly respond to the call for a telephone set by storing a preliminarily set main mode and automatically restoring the mode of the telephone set to the main mode after an on-hook. SOLUTION: When a control part 6 is connected with a timer circuit 9 and the drive signal from the control part 6 is received, preliminarily set short time is counted. At a point of time of the completion of counting, a stop signal is outputted to the control part 6. The control part 6 is provided with a main mode storage part 10 and an arbitrary mode is set as a main mode by the operation of a keyboard 8. The control part 6 is provided with a register 11, the mode to be used each time is possible to be stored, a control is performed by defining the mode stored in this register 11 as a present mode and a telephone set can be used in the mode. As a result, even when the telephone set is used at an mode except the main mode, the mode is automatically restored to the main mode when the time timed in the circuit 9 elapses after an on-hook.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital cordless telephone compatible with a plurality of modes, and more particularly, to a digital cordless telephone which allows a user to switch to any mode to make a call.

[0002]

2. Description of the Related Art As a digital cordless telephone of this type (hereinafter abbreviated as a telephone), for example, it is used between a business office (premise) mode when it is used in a business office and an external public line Some are available in the public mode and the inter-slave mode used as a transceiver between the slaves. Such a telephone is configured so that it can be set to any mode by operating the buttons etc. provided on the telephone, and the user can select the mode to use when using the telephone. And set the phone mode.

This is because the assigned channels are different or the protocols are different in the above-mentioned office mode, public mode and inter-slave mode.
This is because the telephone cannot make a call using a mode different from the set mode. For example, regarding the above-mentioned channels, the office mode is 1 to 37 channels,
Channels 1 to 77 are assigned to the public mode, and channels 1 to 10 are assigned to the inter-slave device mode. Also,
In the protocol, a dedicated control carrier is provided in the office mode and the public mode, whereas a dedicated control carrier is not provided in the inter-slave mode, and the calling side has an empty slot for the communication carrier. It detects and makes a call, and the called side scans all channels. Further, the PBX mode and the PHS mode have different identification code configurations. FIG. 3 is a diagram showing the configuration of this code.

[0004]

As described above, in the conventional telephone, the mode is manually set, and the mode once set is maintained in the mode unless the mode is changed again. Therefore, for example, when a telephone frequently used in the office mode is used in the public mode once in a while, forgetting to change the mode setting of the telephone from the public mode to the business mode,
Since the phone remains in public mode, you will not be able to receive a call in operator mode. In this case, the call does not become impossible at all, and if the calling side sequentially makes calls in different modes, it is possible to call in the mode in which the partner telephone is set, but the operation for that is complicated. It will be

In addition, since a normal telephone is configured to display the current setting mode on the display unit, it is possible to return to the office mode by seeing this display, but in reality, the user In many cases, this display is not noticed, and the above-mentioned problems have not been completely solved. It is also considered to set the main mode on the phone and to issue a warning when the set mode of the phone is different from the main mode, but when the user is not on the side of the phone, Warning is not valid. SUMMARY OF THE INVENTION An object of the present invention is to provide a telephone capable of automatically changing the telephone mode to a frequently used mode and appropriately answering a call to the telephone.

[0006]

A telephone of the present invention selects an arbitrary one of a plurality of modes and stores a preset main mode in the telephone capable of making a call in the selected mode. The feature is that the telephone mode is automatically returned to the main mode after the end of the call.
For example, the telephone of the present invention includes a radio unit that transmits and receives high-frequency signals, a control unit that controls transmission and reception of signals in the radio unit, and a voice processing unit that inputs and outputs a voice signal to and from the radio unit. A keyboard for inputting a control signal to the control unit, a display unit for displaying various information, a mode storage unit for storing a preset main mode, and a timer circuit for measuring a set time, The control unit compares the current mode of the telephone with the main mode of the mode storage unit, starts the time measurement by the timer circuit when the end of call is detected, and sets the current mode when the time measurement by the timer circuit is completed. It has the function of changing to the main mode.

Here, the control unit is configured to perform time counting and mode change in the timer circuit only when the main mode of the mode storage unit and the current mode do not match. Further, it is preferable that the changed mode can be displayed on the display unit or the main mode of the mode storage unit can be set by keyboard operation.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block configuration diagram of an embodiment of a telephone according to the present invention. Here, as an example of a telephone configured to be switchable in three modes of a business office mode, a public mode, and a handset mode as described above. is there. 2 is a radio unit for transmitting and receiving signals via the antenna 1,
A voice signal from the microphone 4 that is input via the voice processing unit 3 is transmitted, and the received signal is output as voice from the receiver 5 via the voice processing unit 3. A control unit 6 is connected to the radio unit 2 and inserts a control signal into the transmission signal or separates the control signal from the reception signal.
For the control unit 6, a display unit 7 that displays various information
Then, the keyboard 8 for inputting information is connected. The keys of the keyboard 8 include a power switch and a hook switch.

Further, a timer circuit 9 is connected to the control unit 6, and when receiving a drive signal from the control unit 6, it measures a preset relatively short time. Then, when the time measurement is completed, a stop signal is output to the control unit 6. Further, the control unit 6 is provided with a main mode storage unit 10, and an arbitrary mode, for example, an office mode, a public mode, or a mode between slave units is set as a main mode by operating the keyboard 8. To be configured. Further, the control unit 6 is provided with a register 11, and the mode to be used each time can be stored in the register 11 by operating the keyboard 8.
The control unit 6 performs a predetermined control by setting the mode stored in the register 11 as the current mode, and the telephone can be used in that mode.

In such a telephone, at the time of transmission, the voice input from the microphone 4 is input to the radio unit 2 as communication information encoded in the voice processing unit 3, and is stored in the register 11 in the control unit 6. Control information including information on the current mode is input to the wireless unit 2, and the wireless unit 2 modulates these signals and transmits them from the antenna 1.
In addition, at the time of reception, the signal received by the antenna 1 is demodulated in the wireless unit 2 to be a digital signal. This signal is divided into control information and communication information, and the control information is processed by the control unit 6, and in particular, processing for coping with the protocol is performed based on the information regarding the mode included in the control information, and the communication information is voice. It is decoded by the processing unit 3 and output from the receiver 5 as voice. For example, when the telephone is set to the office mode, the control unit 6 performs processing by using the data shown in FIGS. To 37, the control information is output so as to use the frequency band of 37 channels.

When the controller 6 detects the end of call by the signal from the hook switch provided on the keyboard 8, it executes the mode setting operation shown in the flowchart of FIG. That is, when the end of call is detected (S101),
The current mode stored in the register 11 is compared with the main mode stored in the main mode storage unit 10 (S
102). If both modes match, the state of waiting for the end of the call is reached. If the two modes do not match, the control unit 6 outputs a drive signal to the timer circuit 9 to start time counting in the timer circuit 9 (S103). When the timer circuit 9 completes the predetermined time measurement (S104), the control unit 6 calls the main mode of the main mode storage unit 10 (S105),
This mode is stored in the register 11 (S106). As a result, the main mode is stored in the register 11, and thereafter, the main mode of the telephone is set as the current mode. At the same time, the main mode is displayed on the display unit 7 (S107), indicating that the telephone is set to the main mode.

Therefore, even when the telephone is used in a mode other than the main mode, the telephone is automatically changed to the main mode when the time measured by the timer circuit 9 elapses after the call ends. For example, in a telephone that is frequently used in a business office, if the business office mode is stored in the main mode storage unit 10 as the main mode, the mode is changed to the business operator mode after using the phone in the public mode. Even if you forget to do so, the telephone will be automatically changed to the office mode after a fixed time after the end of the call. Therefore, it becomes possible to respond to a call in the office mode which is frequently used.

In the case of this embodiment, the main mode can be set to any of the office mode, the public mode, and the inter-slave unit mode according to the frequency of use of each telephone, and therefore each telephone is set. Will be automatically changed to the set main mode after the end of the call. Also, if the main mode of all phones in the office is unified to the office mode, for example, it will be possible to call in the office mode without fail.
It is possible to immediately make a call without having to sequentially call the other party's telephone in different modes.

Although the time set in the timer circuit has an appropriate length, the set time may be extremely short in some cases, and it may be set to a value close to "0" in extreme cases. In this case, the mode is returned to the main mode at the same time as the end of the call. Therefore, the set time may be set according to the usage status of the telephone, and preferably the set time may be arbitrarily set by operating the keyboard.

[0015]

As described above, according to the present invention, an arbitrary one mode is selected from a plurality of modes, a preset main mode is stored in a telephone capable of making a call in the selected mode, Since it is configured to automatically change the mode of the phone to the main mode after the call ends, even if you forget to change the mode of the phone to the main mode after the call ends, it will automatically change after the predetermined time elapses. It will be returned to the main mode. For this reason, if the main mode is set to a mode in which calls are frequently made, it is possible to respond to calls with a high probability, and it is possible to obtain an effect that calls can be secured.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart for explaining a mode automatic return operation in the telephone of FIG.

FIG. 3 is a configuration diagram of identification codes of various modes in a digital cordless telephone.

[Explanation of symbols]

 1 Antenna 2 Radio Section 3 Voice Processing Section 4 Microphone 5 Receiver 6 Control Section 7 Display Section 8 Keyboard 9 Timer Circuit 10 Main Mode Storage Section 11 Register

Claims (5)

[Claims] 1. A digital cordless telephone capable of selecting an arbitrary one of a plurality of modes and making a call in the selected mode stores a preset main mode and sets the telephone mode after the end of the call. A digital cordless telephone, which is configured to automatically return to the main mode. 2. A radio unit for transmitting and receiving high frequency signals, a control unit for controlling transmission and reception of signals in the radio unit, a voice processing unit for inputting and outputting voice signals to and from the radio unit, and a control unit. The control unit includes a keyboard for inputting a control signal, a display unit for displaying various information, a mode storage unit for storing a preset main mode, and a timer circuit for measuring a set time. Compares the current mode of the telephone with the main mode of the mode storage section, starts the time measurement in the timer circuit when the end of call is detected, and sets the current mode to the main mode when the time measurement in the timer circuit is completed. Digital cordless telephone with the ability to change. 3. The digital cordless telephone according to claim 2, wherein the control unit causes the timer circuit to measure the time and change the mode only when the main mode of the mode storage unit and the current mode do not match. 4. The digital cordless telephone according to claim 3, wherein the mode changed mode can be displayed on the display unit. 5. The digital cordless telephone according to claim 3, wherein the main mode of the mode storage section can be set by operating a keyboard.