JPS6217403B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an adjustment device for electronic equipment, which automatically performs variable adjustment based on the adjustment by a manual adjustment means and a remote adjustment means that independently and variably adjust electrical characteristics. It is an object of the present invention to provide an adjustment device for electronic equipment that selectively switches such that the electronic equipment is enabled.

There is a volume adjustment device that adjusts the volume by rotating a rotary knob of a mechanical volume, and also supplies an external control signal by remote control to an electronic volume. 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, each time the volume is adjusted using a mechanical volume or an electronic volume, the switching of the signal path has to be performed independently of the volume adjustment using a switch separate from these volumes. However, there were drawbacks such as complicated operation.

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, and its rotation axis is provided in conjunction with the slider of the volume 2, and is also connected to the touch sensor 3 via a brush 1a. The touch sensor 3 is connected to the R terminal of the RS flip-flop 4. 5 is an external control signal generation circuit that generates an external volume adjustment control signal of, for example, 1 dB, 2 dB, 4 dB, 8 dB, etc., attenuation or increase in accordance with remote volume adjustment, and is connected to the S terminal of the RS flip-flop 4. It is also connected to a digital electronic volume 6. 7 is an audio signal input terminal, which is connected to contact b of the switch circuit 8 via the volume 2, and also to the electronic volume 6;
The output terminal of is connected to contact a of the switch circuit 8. The Q terminal of the RS flip-flop 4 is connected to the contact switching terminal of the switch circuit 8. The contacts of the switch circuit 8 are configured to be connected to contact a when the RS flip-flop 4 is in the set state, and to contact b when the RS flip-flop 4 is in the reset state.

Now, if you touch knob 1 to adjust the volume,
The touch sensor 3 detects a change in resistance or capacitance caused by a 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 contact piece of the switch circuit 8 is switched to the contact point b by the Q output signal. In this state, when the knob 1 is rotated appropriately, the level of the audio signal from the input terminal 7 is adjusted by the volume 2, and is taken out from the output terminal 9 via the contact b of the switch circuit 8.

On the other hand, if you adjust the volume by remote control,
A control signal is taken out from the external control signal generation circuit 5 and supplied to the S terminal of the flip-flop 4. As a result, the flip-flop 4 enters the set state, and the contact piece of the switch circuit 8 is switched from contact b to contact a by the Q output signal. The control signal taken out by the volume adjustment is supplied to the attenuation or increase amount switching terminal (not shown) provided for each attenuation or increase amount in the electronic volume 6, and connects and switches the switching mechanism. The audio signal from the input terminal 7 has its amplitude appropriately adjusted by the electronic volume 6 and is taken out from the output terminal 9 via the contact a of the switch circuit 8.

In this way, each signal path is automatically switched in accordance with the volume adjustment using the volume 2 and the electronic volume 6, which is superior to the conventional system in which the signal path was switched independently of the volume adjustment. Easy to operate.

As described above, the adjustment device for electronic equipment includes a manual adjustment means and a remote adjustment means that independently and variably adjust electrical characteristics, and a human body sensing means that is activated when a human body approaches or contacts the manual adjustment means. a selection means for selectively selecting the adjustment by the manual adjustment means and the remote adjustment means; and a selection means for changing the selection means from the first state to select the adjustment by the remote adjustment means based on the output of the human body sensing means, from the manual adjustment. the manual adjustment means and the remote adjustment means; Since the selection means is configured to be selectively switched so that variable adjustment based on the adjustment means is automatically made possible by the switching operation of the operation means accompanying the adjustment of any of the adjustment means, for example, the selection means can be switched directly. When applied to a volume adjustment device in which the volume is adjusted by rotating a knob, and the volume is also adjusted by a control signal from a remote control, etc., there is a system for adjusting the volume using the rotating knob and a system for adjusting the volume using the control signal. can be automatically switched in conjunction with the volume adjustment, which makes the operation easier compared to the conventional system that performs the above switching independently of the volume adjustment, and reduces the number of operation switches on the operation panel. It is especially suitable for adjusting using separately provided volumes such as an electronic volume and a mechanical volume, and since the operating means is switched by the output of the human body sensing means, the adjustment value can be adjusted easily. It has the advantage that it is possible to switch to volume adjustment using a mechanical volume, for example, on the manual adjustment means side without changing the volume.

[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... Volume adjustment rotary knob, 2... Volume, 3... Touch sensor, 4... RS flip-flop, 5... External control signal generation circuit,
6...Electronic volume, 7...Audio signal input terminal, 8...Switch circuit, 9...Audio signal output terminal.

Claims (1)

[Claims] 1. A manual adjustment means and a remote adjustment means that independently and variably adjust the electrical characteristics of the same; a human body sensing means that is activated when a human body approaches or contacts the manual adjustment means; and the manual adjustment means and the remote adjustment means. a second state in which the selection means selects the adjustment by the manual adjustment means from a first state in which the adjustment by the remote adjustment means is selected based on the output of the human body sensing means; and an actuating means for switching from the second state to the first state by the output of the remote adjustment means, and adjusting either the manual adjustment means or the remote adjustment means. An adjustment device for an electronic device, characterized in that the selection means is configured to selectively switch so that variable adjustment based on the adjustment means is automatically made possible by the switching operation of the operation means accompanying the switching operation of the operation means.