JPS6212694B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an adjustment device for electronic equipment, which comprises: a first adjustment means for variably adjusting electrical characteristics; a second adjustment means capable of variably adjusting the electrical characteristics by remote control; It is an object of the present invention to provide an adjustment device for an electronic device, which can adjust a second adjustment means to be equal to the adjustment value by adjusting the first adjustment means. There is a volume adjustment device that adjusts the volume by rotating a rotary knob of a mechanical volume, and also adjusts the volume by supplying an external control signal to an electronic volume by remote control.
Generally, in this type of device, a path for audio signals whose volume is adjusted by a mechanical volume and a path for audio signals whose volume is adjusted by an electronic volume are switched, and adjustment is made using either volume. The device is configured to extract the audio signal.

Conventionally, the manual volume using a rotating knob and the electronic volume using an external control signal are configured independently, so there is no relationship between the electronic volume adjustment value and the manual volume adjustment value. When performing remote control after adjusting the volume using the knob, the volume cannot be adjusted based on the value adjusted using the rotating knob, and the level attenuation or increase cannot be adjusted based on the volume adjusted value using the rotating knob. There were disadvantages that I could not get.

The present invention eliminates the above-mentioned drawbacks, and an embodiment thereof will be described below with reference to the drawings.

The figure shows a block system diagram in which an embodiment of the adjustment device for electronic equipment according to the present invention is applied to a volume adjustment device. In the figure, reference numeral 1 denotes a volume adjustment knob made of metal, for example, whose rotation axis is provided in conjunction with a slider of a manual volume 2, and a brush 1a.
The touch sensor 3 is connected to the R terminal of the RS flip-flop 4 and to the start terminal of a counter 6 for counting the signal from the oscillator 5. It is assumed that the counter 6 only operates in the count-up direction. 7 is, for example, 1 dB, 2 dB, 4 dB, 8 along with remote volume adjustment.
This external control signal generation circuit generates an external volume adjustment control signal with an increase in dB, . Reference numeral 10 denotes an audio signal input terminal, which is connected to the contact b of the switch circuit 11 via the volume 2, and also to the electronic volume 12, and the output terminal of the electronic volume 12 is connected to the contact a of the switch circuit 11. has been done. 1
3 is a signal coincidence detection circuit whose inputs are connected to the electronic volume 12 and volume 2, and whose output is connected to the OR circuit 8 and the stop terminal of the counter 6. The Q terminal of the RS flip-flop 4 is connected to the contact switching terminal of the switch circuit 11. In addition, the contact piece of the switch circuit 11 is
When the RS flip-flop 4 is in the set state, it is connected to the contact a, and when the RS flip-flop 4 is in the reset state, it is connected to the contact b.

Here, when the knob 1 is touched to adjust the volume increase, the touch sensor 3 detects a change in resistance or capacitance caused by the human body touching the knob 1, and a detection signal is supplied to the R terminal of the flip-flop 4. As a result, the flip-flop 4 enters the reset state and the switch circuit 11 is reset by the Q output signal.
The contact piece is switched and connected to contact b. On the other hand, the detection signal from the touch sensor 3 is supplied to the counter 6, which causes the counter 6 to count the clock pulses from the oscillator 5. In this state, if the knob 1 is rotated appropriately, the input terminal 10
The level of the second audio signal is appropriately adjusted by the volume 2, and is taken out from the output terminal 14 via the contact b of the switch circuit 11, and is also supplied to the coincidence detection circuit 13. Adjustment is stopped when the audio signal level reaches the desired value.

On the other hand, from the start of adjustment using knob 1, oscillator 5
A signal from a counter 6 counting the number of clock pulses is supplied to an electronic volume 12 via a latch memory 9. As a result, the increase amount of the electronic volume 12 is appropriately varied by the signal from the counter 6 from the start of adjustment of the knob 1, and the level of the audio signal from the input terminal 10 is adjusted by the electronic volume 12, and the volume 2
Coincidence detection circuit 13 with a signal conditioned by
is supplied to

Therefore, when the signal level from the adjusted volume 2 matches the signal level from the electronic volume 12 adjusted by the signal from the latch memory 9, a match signal is extracted from the match detection circuit 13, and the match signal is output from the counter 6. The signal from the counter 6 at this time is stopped and supplied to the latch memory 9 via the OR circuit 8 to store and hold the signal from the counter 6 at this time. By storing and holding the signal in the latch memory 9, the electronic volume 12 maintains the increase amount at the time of coincidence. Therefore, electronic volume 12 is held at the same value as the increase in volume 2.

Next, when you adjust the volume by remote control,
A control signal from an external control signal generation circuit 7 is supplied to the S terminal of the flip-flop 4. As a result, the flip-flop 4 enters the set state, the Q output signal disappears, and the contact piece of the switch circuit 11 is switched from contact b to contact a. The control signal from the external control signal generation circuit 7 is supplied to the electronic volume 12 via the latch memory 9 to vary the amount of increase, so that the amplitude of the audio signal from the input terminal 10 is adjusted appropriately by the electronic volume 12. The signal is then taken out from the output terminal 14 via the contact a of the switch circuit 11.

At this time, since the adjustment value of electronic volume 12 is set to the same value as the adjustment value of volume 2,
The volume can be adjusted using the knob 1 and the volume can be varied from that value using the volume at which the user was listening as a reference.

In this embodiment, the system for adjusting the volume using the rotary knob 1 and the system for adjusting the volume using the control signal can be automatically switched as the volume is adjusted. It is easier to join than the conventional method which requires switching.

As described above, the adjustment device for electronic equipment according to the present invention includes a first adjustment means that variably adjusts the electrical characteristics, a second adjustment means that can variably adjust the electrical characteristics by remote control, and a second adjustment means that can variably adjust the electrical characteristics by remote control. A human body sensing device that is activated when a human body approaches or contacts the first adjusting means in an adjustment device for electronic equipment having means for selectively selecting and switching the signal paths adjusted by the first adjusting means. and adjustment value variable means for automatically varying the adjustment value (adjustment amount) of the second adjustment means by the output of the human body sensing means as the first adjustment means is adjusted without remote control; Comparing the adjusted value of the first adjusting means and the adjusted value of the second adjusting means, detecting that they match, and automatically adjusting the value of the second adjusting means by the adjusting value variable means. Since a means for stopping the variable operation is provided, for example, when adjusting the volume by directly rotating the knob, and then remotely adjusting the volume using a control signal from a remote control, etc., the volume can be adjusted using the rotating knob first. It has features such as being able to variably adjust the volume based on the volume at which the listener was listening.

[Brief explanation of the drawing]

The figure is a block system diagram of an embodiment of the adjustment device for electronic equipment according to the present invention. 1... Rotation knob for volume adjustment, 2... Volume, 3... Touch sensor, 4... RS flip-flop, 5... Oscillator, 6... Counter, 7...
External control signal generation circuit, 8...OR circuit, 9...latch memory, 10...audio signal output terminal, 11...switch circuit, 12...electronic volume, 13...signal coincidence detection circuit, 14...audio signal Output terminal.

Claims (1)

[Claims] 1. A first adjusting means that variably adjusts the electrical characteristics, a second adjusting means that can variably adjust the electrical characteristics by remote control, and a device adjusted by the first and second adjusting means, respectively. An adjustment device for electronic equipment having a means for selectively switching a signal path, comprising: a human body sensing means that is activated when a human body approaches or contacts the first adjustment means; adjustment value (adjustment amount) variable means for automatically varying the adjustment value (adjustment amount) of the second adjustment means according to the output of the human body sensing means as the first adjustment means is adjusted; The adjustment value (adjustment amount) of the adjustment means is compared with the adjustment value (adjustment amount) of the second adjustment means, it is detected that they match, and the second adjustment value (adjustment amount) is adjusted by the adjustment value (adjustment amount) variable means. An adjustment device for an electronic device, comprising means for stopping the automatic adjustment value (adjustment amount) variable operation of the adjustment means.