JPH1039901A - Variable amount controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform variable amount control corresponding to operation quickly turning a rotary encoder through a device for variable amount control corresponding to pulses inputted from the rotary encoder. SOLUTION: This device is provided with a signal processing part 2 for setting a variable amount corresponding to the operation of a rotary encoder 4 for operating the variable amount, control part 5 for controlling the signal processing part 2 corresponding to a pulse signal input due to the operation from the rotary encoder part 4, and control data storage part 5a for storing data for variable amount control. When input pulses more than a prescribed number are counted and fixed within prescribed time, the control part 5 reads out the variable amount control data corresponding to the number of input fixed pulse signals and variably processes the variable amount through the signal processing part 2. The control data storage part 5a stores the data for variable amount control of which the variable throughput in the case of input from the rotary encoder part 4 in the direction decreasing the variable amount is enlarged rather than variable throughput in the case of input from the rotary encoder part 4 in the direction increasing the variable amount concerning the variable throughput when the control part 5 fixes the input pulses more than the prescribed number within the prescribed time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable amount control device using a rotary encoder for controlling a variable amount such as a reproduction volume of an audio reproduction (audio) device.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing a configuration of a conventional variable quantity control device. A signal is input from the input terminal 1 to the signal processing unit 2
Is input to The signal processing unit 2 performs signal processing for adjusting a variable amount of the signal, and the signal is output to the output terminal 3. Here, the variable amount of the signal includes, for example, the volume of the acoustic signal, the amount of delay time of the signal, the reception frequency of the receiver, and the like. The operation input of the variable amount adjustment is performed from the rotary encoder unit 4. The variable amount increase and the variable amount decrease are determined by the rotation direction of the rotary encoder unit 4.
The amount of change of the variable amount is determined by the amount of rotation of. In response to an operation input from the rotary encoder unit 4, identification information indicating whether the variable amount increases or decreases according to the rotation direction, and information about the change amount of the variable amount according to the rotation amount is configured by a microcomputer as a pulse signal. Is input to the control unit 5.

The control unit 5 sets the variable processing amount of the signal processing unit 2 based on the identification information indicating whether the variable amount increases or decreases and the information on the change amount of the variable amount input from the rotary encoder unit 4. Since this setting is sequentially performed in response to the operation from the rotary encoder unit 3, the operator obtains, in real time, the output signal of the signal processing unit 2 that has performed the variable processing according to the rotation operation of the rotary encoder unit 4. be able to. Numerical values and the like representing the variable amounts input from the rotary encoder unit 4 to the control unit 5 are displayed on the display unit 6.

[0006] Only for the pulse signals input by rotating the rotary encoder unit 4 and determined by the microcomputer, the signal processing unit is controlled to vary the variable amount for each step. Was.
When the rotary encoder is rotated, two pulse signals are output so as to have a phase difference corresponding to the rotation direction. The two pulse signals output from the rotary encoder are normally switching outputs, and cause chattering. Therefore, the microcomputer inputs the pulse signals at a low sampling frequency that is not affected by the chattering. Therefore, if a pulse signal is input at a period shorter than the sampling frequency set so as to prevent chattering, the microcomputer cannot determine the input pulse signal. However,
When the pulse signal from the rotary encoder unit 4 cannot be determined by the microcomputer, the process of complementarily controlling the input of the variable amount using the pulse signal number data that can be determined within a certain period has not been performed.

Japanese Utility Model Laid-Open Publication No. 1-97627, entitled "Controller for Electronic Equipment", includes a pulse generator for generating a pulse signal proportional to the rotation speed of the jog dial and a low-speed pulse signal in response to the operation of the jog dial. A transmitter, a pulse period determiner that outputs a switching signal when the pulse signal from the pulse generator has a period shorter than the specified period, and a timer that operates for a predetermined time after the input of the switching signal,
A controller for an electronic device, comprising: a switching circuit for switching an output signal to a signal control circuit with a switching signal from a pulse signal from a pulse generator to a low-speed pulse signal of a transmitter until a reset by a pulse signal after a timer operates. ing. In this apparatus, when the jog dial is rotated at a speed higher than a specified speed, the operation is continued by supplying a low-speed pulse signal from the transmitter to the signal control circuit for a predetermined time without turning the jog dial.

[0006]

In the conventional variable amount control device, only the variable processing amount of the signal processing section is controlled based on the content of the pulse signal from the rotary encoder determined by the microcomputer. If the rotation speed of the rotary encoder is increased, the interval between the pulse signals becomes narrower.If the interval between the pulse signals becomes too narrow, the input pulse signal cannot be determined as an input by the microcomputer, and the pulse count is also reduced. There was a case. In that case, as a result, the value of the variable amount does not change, the variable amount adjustment corresponding to the rotation operation of the rotary encoder is not performed, and a great sense of discomfort occurs in operation. Therefore, the rotary encoder had to be turned over and over again until the required value was reached. This has been a very troublesome operation for the user.

For example, when adjusting the volume of an acoustic signal,
When the signal level was to be increased by 50 dB from -60 dB to -10 dB, it was necessary to turn the rotary encoder about 15 to 20 times. Therefore, there is a need to provide a variable amount control device having operability capable of reducing the number of operations and reaching a required value as quickly as possible.

Japanese Patent Laid-Open Publication No. Hei 1-97627, entitled "Controller for Electronic Equipment", is an apparatus for automatically supplying a predetermined time when a jog dial is rotated at a speed higher than a prescribed speed. In order to reduce the number of pulses, there is no configuration for controlling with a variable amount associated with the pulse signal number data that can be determined within a certain period. Also,
Even if the jog dial is turned by one click, if the pulse speed exceeds the specified speed, the value automatically changes, leaving a problem that the user's usability is rather uncomfortable. I have. Furthermore, a circuit such as a frequency control circuit for automatically supplying a low-speed pulse for a fixed time when rotated at a specified speed or more, a pulse cycle determiner, a transmitter, a timer, a switching circuit, and the like are required, and the circuit scale becomes large. , Processing speed, power consumption, cost, etc.

According to the present invention, if the microcomputer cannot determine the number of pulses when the rotary encoder is rotated quickly, the microcomputer performs a supplementary control for varying the variable amount a predetermined number of times, so that the required value can be reached as quickly as possible. A quantity control device is provided. Another object of the present invention is to provide a variable amount control device that reduces a sense of operation discomfort when the microcomputer cannot determine a pulse signal when the rotary encoder is rotated quickly.

[0010]

A variable amount control device according to the present invention comprises a rotary encoder for operating a variable amount, a signal processing unit for setting a variable amount in accordance with the operation of the rotary encoder, A control unit that controls the signal processing unit in response to a pulse signal input by an operation from an encoder unit; and a control data storage unit that stores data for variable amount control, wherein the control unit is configured to control a predetermined number of data within a predetermined time. When the count of the input pulses is determined and determined, the data for variable amount control is read from the control data storage unit in accordance with the determined number of input pulse signals, and the signal processing unit performs variable amount variable processing. Is a variable processing amount when a predetermined number or more of input pulses are counted and determined within a predetermined time, when the input from the rotary encoder unit is in a direction to increase the variable amount. Than the variable processing amount is for storing data for variable amount control input is greatly variable amount of processing when a direction to decrease the variable amount from the rotary encoder unit in the control data storage unit. Further, in the variable amount control device according to the present invention, when the number of determinations of the input pulse from the rotary encoder unit is at least two or more, the control unit is variable at a fixed time set in a range of 1 to 250 milliseconds. The amount is variably processed by the signal processing unit. Further, in the variable amount control device according to the present invention, the control unit variably processes the variable amount set in a range of the variable amount corresponding to 1 to 3 pulses at a set constant time by the signal processing unit. . Further, in the variable amount control device according to the present invention, the control unit performs the variable processing every fixed time in the signal processing unit a number of times set in a range of 3 to 10 times.

According to the above configuration, two pulse signals having a phase difference input from the rotary encoder to the control unit are sampled at regular intervals, and if a predetermined number or more of pulses are input within the sampling time, It is determined that the rotary encoder has been turned quickly, and from the point in time when data input to the control unit is interrupted, the signal processing unit
The control unit automatically changes and sets the number of times of data set at predetermined time intervals. Therefore, once the rotary encoder is turned quickly, the complementary operation of the variable processing can be automatically performed, and the target value can be quickly reached.

[0012]

FIG. 1 shows an embodiment of the present invention.
A signal is input to the signal processing unit 2 from the input terminal 1. The signal processing unit 2 performs signal processing for adjusting a variable amount of an input signal. The signal whose variable amount has been adjusted is output to the output terminal 3. Here, the variable amount of the signal includes, for example, the volume of the acoustic signal, the amount of delay time of the signal, the reception frequency of the receiver, and the like. In the case of adjusting the volume of an acoustic signal, an electronic volume and an amplifier are used as the signal processing unit 2, and a digital signal processing circuit (D
In the case of adjusting the reception frequency using a digital signal processor (SP) or the like, a PLL (Phase Locator) is used as the signal processing unit 2.
ked Loop) circuit or the like.

The operation input for the variable amount adjustment is performed by the rotary encoder unit 4. The rotary encoder 4 generates and outputs two pulse signals SEL-A and SEL-B shown in FIG. 5 by a rotation operation. The two pulse signals are output with a phase difference (ΔTsec shown in FIG. 5) depending on the rotation direction. In FIG. 5, the signal of SEL-B is delayed with respect to the signal of SEL-A. If this case is set as a variable amount increase, when the rotary encoder unit 4 is rotated in the reverse direction, SEL-A
Is delayed with respect to the signal of SEL-B, and in this case, the variable amount is set to fall. The phase relationship is determined by monitoring the values of the signals SEL-A and SEL-B at the time T1 during Δtsec shown in FIG. As shown in FIG. 5, when the signal SEL-A is 0 (OFF) and the signal SEL-B is 1 (ON) at time T1,
The control unit determines that the signal SEL-B is delayed with respect to the signal SEL-A.

By detecting the phase difference of the pulses depending on the rotation direction of the rotary encoder unit 4, the variable amount is increased and the variable amount is decreased, and the variable amount is determined by the number of pulses generated by the rotary encoder unit 4. The variable amount is adjusted by one step for one pulse. A pulse signal corresponding to the operation input is input from the rotary encoder unit 4 to the control unit 5 to identify identification information indicating whether the variable amount is increasing or decreasing, and information on the change amount of the variable amount depending on the number of pulses. The control unit 5 is connected to a control data storage unit 5a. The control unit data storage unit 5a stores data for reading out to the control unit 5 and performing variable amount control when the rotary encoder unit 4 is operated to rotate quickly and the pulse signal cannot be determined or counted. You. When the rotary encoder unit 4 is rotated quickly, FIG.
As shown during ΔT2 (= 51 msec) of the signal SEL-A, the pulse period becomes shorter.

The control unit 5 determines the variable amount by the signal processing unit 2 based on the identification information of whether the variable amount increases or decreases from the pulse signal input from the rotary encoder unit 4 and the information on the number of pulses indicating the change amount of the variable amount. Set the adjustment processing amount.
Since this setting is sequentially performed in response to an operation from the rotary encoder unit 4, the operator obtains, in real time, an output of the signal processing unit 2 in which a variable amount according to the rotation operation of the rotary encoder unit 4 is adjusted. be able to. A numerical value or the like representing the variable amount input from the rotary encoder unit 4 to the control unit 5 is displayed on a display unit (indicator) 6.

FIG. 2 is a flowchart showing one embodiment of the processing operation by the variable amount control device of the present invention. Prior to the signal processing, complementary data to be used when the rotary encoder unit 4 is quickly rotated is set. Variable time Ta
Set (Tau, Tad) in the range of 1 ms or more and 250 ms or less
(S1). Variable step Sa (Sau, Sad) is 1 or more and 3
The following values are set (S2). Variable number of times Na (Nau, N
ad) is set to a value of 3 or more and 10 or less (S3). These data Ta, Sa, and Na are stored in the control data storage unit 5a.

The data Ta, Sa, and Na are determined so that the variable processing is performed faster when the variable amount is decreased than when the variable amount is increased. For this purpose, if one piece of data is operated, the variable time Tad for decreasing the variable amount is smaller than the variable time Tau for decreasing the variable amount, or the variable step for decreasing the variable amount. What is necessary is just to set Sad larger than the variable step Sau when increasing the variable amount. Of course Tad and Sad
Can be adjusted and set. In an application in which it is better to make the variable step the same in ascending and descending, Tau = Tad and Sau = Sad may be set. By setting the variable number of times Nad when decreasing the variable amount larger than the variable number of times Nau when increasing the variable amount, the amount of change per unit time is the same, but 1
Since the variable amount corresponding to the number of operations can be increased, a practically sufficient effect may be obtained. The variable number of times Nad is
By performing adjustment and setting in combination with the variable time Tad and the variable step Sad, the amount of change for one operation can be further increased.

A pulse signal generated by rotating the rotary encoder 4 is input to the controller 5 (S4).
When the pulse signal from the rotary encoder connected to the input port of the microcomputer is sampled every 500 μs by a timer interrupt in the microcomputer constituting the control unit 5 and the rotary encoder is slowly turned,
The variable amount is controlled by the signal processing unit 2 in accordance with the content of the pulse signal input determined by the control unit 4. Here, the sampling by the timer interrupt of the input signal is performed every 500 μs, but this cycle is appropriately set in a range low enough to avoid chattering of the rotary encoder unit according to the operation speed of the microcomputer and the contents of the program processing. In this case, the time for determining that the rotary encoder unit 4 has been turned quickly may be set as appropriate.

The number n of pulse inputs that can be determined by the control unit 5 is counted (S5). As a condition for judging that the rotary encoder unit 4 is rotated quickly, when the control unit 5 determines two or more pulse signals in 30 ms (YES in S6), the control unit 5 determines the number of determined pulse signals. The value of the variable processing amount is input to the signal processing unit 2, and the control unit 5
Read control data from a. If the rotary encoder unit 4 is turned to the side that raises the variable amount (YES in S7), the variable amount is set to Na at every Sau step and every Taumsec.
The signal processing unit 2 is set to rise u times. Also,
When the rotary encoder unit 4 is turned to the side of descending the variable amount (NO in S7), the variable amount is set to descend Nad times every Tadmsec in the Sad step.

When the control unit 5 determines that the pulse signal of the rotary encoder unit 4 is less than two times within 30 ms, which is a normal operation process (NO in S6), the control unit 5 responds to the determined number of pulse signals. Perform the following processing. Rotary encoder unit 4
Is turned to the side of increasing the variable amount (YES in S10), the signal processing unit 2 is controlled to increase the variable amount value by the determined number of steps of pulses. Further, when the rotary encoder unit 4 is turned to the side of descending the variable amount (N in S10)
In O), the signal processing unit 2 is controlled so as to lower the variable value by the determined number of pulse steps.

If the process is not terminated after judging whether the process is to be terminated (S13) (NO in S13), the process returns to the signal input (S4) to continue the process. If it is finished (YES in S13), the process ends.

FIG. 3 is a block diagram showing an embodiment in which the variable control device of the present invention is applied to volume control. Input terminal 10
Is input to the electronic volume unit 12 via the input selector unit 11. The electronic volume unit 12 controls the volume of the acoustic signal by controlling the amplification of the amplifier unit 13.
The sound signal whose volume has been adjusted is output to the output terminal 14.
The operation input of the volume adjustment is performed from the rotary encoder unit 15. Volume increase (volume UP) and volume decrease (volume DOW) depending on the rotation direction of the rotary encoder unit 15.
N) is determined, and the amount of volume change is determined by the amount of rotation of the rotary encoder unit. This rotary encoder 15
In response to the operation input from, the identification information of the volume increase or the volume decrease according to the rotation direction and the information of the volume change amount according to the rotation amount are input to the control unit 16 as a pulse signal.
The control data storage unit 16a is connected to the control unit 16.

The control section 16 includes a rotary encoder section 15
Of the electronic volume unit 12 based on the identification information of the volume increase or decrease and the information of the volume change amount input from the
Change the (gain) setting. Since this setting is performed sequentially in response to an operation from the rotary encoder unit 15,
The operator can obtain, in real time, reproduced sound of a volume changed according to the rotation operation of the rotary encoder unit 15. From the rotary encoder unit 15 to the control unit 1
The volume value input to 6 is displayed on the display unit (indicator) 17.
Will be displayed.

FIG. 4 is a flowchart showing one embodiment of a processing operation in which the variable amount control device of the present invention is applied to volume control. A pulse signal generated by rotating the rotary encoder unit 15 is input to the control unit 16 (ST1). When the input signal from the input port of the microcomputer is sampled every 500 μs by a timer interrupt in the microcomputer constituting the control unit 16 and the rotary encoder unit 15 is slowly turned, the control unit 16 determines the pulse signal input. The volume of the electronic volume unit 12 is controlled according to the contents. Here, the sampling period due to the timer interruption of the input signal is set to 500 μs, but this period is appropriately set according to the operation speed of the microcomputer and the contents of the program processing in a range as low as possible to avoid chattering of the rotary encoder unit.

When the rotary encoder is turned to the UP (volume rise) side, six times of 1 dB steps are performed one time.
Set every 0 ms, and if the rotary encoder is turned to the DOWN (volume down) side,
Set 6 times every 10ms.

Number of pulse inputs n that can be determined by control unit 16
Is counted (ST2). As a condition for judging that the rotary encoder unit 15 has been turned quickly, when the control unit 16 determines two or more pulse signals in 30 ms (YE in ST3).
In S), the control unit 16 sets the value of the electronic volume unit 12 according to the determined number of pulse signals, and the control unit 5 reads out control data from the control data storage unit 16a. When the rotary encoder 15 is turned to the side where the volume is increased
In (YES in ST4), the volume value is set to be increased six times every 10 ms in 1 dB steps (ST5). When the rotary encoder unit 15 is turned to the side where the volume of the volume is lowered (NO in ST4), 10 msec in 2 dB steps.
The volume value is set to decrease 6 times each time.

The rotary encoder 15 outputs a pulse signal of less than twice in 30 ms, which is a normal operation process, to the controller 16.
Is determined (NO in ST3), the control unit 16 performs processing according to the determined number of pulse signals. When the rotary encoder unit 15 is turned to the side of increasing the variable amount (YES in ST7), the electronic volume unit 12 is controlled so as to increase the volume value by the determined number of steps of pulses. On the other hand, when the rotary encoder 15 is turned to the side of lowering the variable amount (NO in ST7), the electronic volume unit 1 is lowered so as to lower the volume value by the determined number of steps.
2 is controlled.

After judging whether or not to end the processing (ST10),
If it does not end (NO in ST10), signal input (ST10)
Return to 1) and continue the process. When finished (Y in ST10)
ES) ends.

In order to determine the data applied in the volume control, an experiment was conducted under the conditions in which the data was switched, and the experimental results shown in Table 1 were obtained.

Since the setting is different from the variable step in the direction of increasing the volume when turning in the direction of decreasing the volume, the value can be quickly changed to the small volume range when decreasing the volume. This is effective when the apparatus is not provided with a muting function or the like for greatly reducing the sound volume, and when it is desired to quickly descend as a substitute. Therefore, even if the rotary encoder is quickly turned, if the pulse input to the control unit is determined twice or more within 30 ms, the value can be automatically changed according to the set contents.

According to the embodiment of the present invention, it is possible to determine that the rotary encoder has been turned quickly by determining how many times the pulse signal input of the rotary encoder can be determined within a predetermined time by the control unit. In addition to changing the value in accordance with the pulse input, it is possible to automatically supplement the change in the value and to achieve the target value quickly. Further, according to the embodiment of the present invention, since the operation is performed only when the pulse signal is shorter than the predetermined period and the predetermined number of pulses is determined, the control is not activated by one click of the encoder. Therefore, in the operation of the rotary encoder, it is possible to assist the operation without the user feeling uncomfortable. INDUSTRIAL APPLICABILITY The variable amount control device of the present invention can be applied to various uses such as volume control, control of a DSP delay time, and frequency variable control by a PLL.

[0032]

According to the variable amount control device of the present invention, when the control section is input at a speed that cannot be determined, the input value can be complemented and the target value can be quickly reached in response to a fast operation input. . According to the variable amount control device of the present invention, when the control unit is input at a speed that cannot be determined, the input value is complemented,
According to the fast operation input, fast processing with reduced discomfort can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a variable amount control device according to the present invention.

FIG. 2 is a flowchart showing one embodiment of a processing operation by the variable amount control device of the present invention.

FIG. 3 is a block diagram showing an embodiment in which the variable amount control device of the present invention is applied to volume control.

FIG. 4 is a flowchart showing one embodiment of a processing operation in which the variable amount control device of the present invention is applied to volume control.

FIG. 5 is a diagram illustrating an output pulse signal of a rotary encoder unit.

FIG. 6 is a block diagram showing a conventional example of a variable amount control device.

[Description of Signs] 1,10 input terminal 2 signal processing unit 3,14 output terminal 4,15 rotary encoder unit 5,16 control unit 5a, 16a control data storage unit 6,17 display unit 11 input selector unit 12 electronic volume unit 13 Amplifier section

Claims (5)

[Claims] A rotary encoder for operating a variable amount; a signal processing unit for setting a variable amount in accordance with an operation of the rotary encoder; and a pulse signal input in response to an operation from the rotary encoder. A control unit that controls the signal processing unit and a control data storage unit that stores data for variable amount control, wherein the control unit counts and determines a predetermined number or more of input pulses within a predetermined time,
A variable amount control device, wherein data for variable amount control is read out from the control data storage unit in accordance with the determined number of input pulse signals, and the variable amount is variably processed by the signal processing unit. 2. A rotary encoder for operating a variable amount, a signal processing unit for setting a variable amount in accordance with the operation of the rotary encoder, and a pulse signal input in response to an operation from the rotary encoder. A control unit that controls the signal processing unit and a control data storage unit that stores data for variable amount control, wherein the control unit counts and determines a predetermined number or more of input pulses within a predetermined time,
The variable amount control data is read out from the control data storage unit in accordance with the determined number of input pulse signals, and the variable amount is variably processed by the signal processing unit. The variable processing amount when the count is determined is variable when the input from the rotary encoder unit is in the direction of decreasing the variable amount than the variable processing amount when the input from the rotary encoder unit is in the direction of increasing the variable amount. A variable amount control device, characterized in that data for variable amount control with an increased processing amount is stored in the control data storage unit. 3. The variable amount control device according to claim 1, wherein the number of times the input pulse from the rotary encoder unit is determined is at least two times.
The variable amount control device, wherein the control unit variably processes the variable amount by the signal processing unit at regular intervals set within a range of 1 to 250 milliseconds. 4. The variable amount control device according to claim 3, wherein the control unit is configured to control the signal processing unit by a variable amount set within a range of a variable amount corresponding to 1 to 3 pulses at a set constant time. A variable amount control device, wherein the variable amount control device performs variable processing. 5. The variable amount control device according to claim 3, wherein the control unit controls the signal processing unit to perform the variable processing every predetermined time in a range of 3 to 10 times. Variable amount control device characterized by performing the above.