Non-contact audio equipment volume controller and control method thereof
A volume controller, volume control technology, applied in gain control, amplification control, electrical components and other directions, can solve problems such as inconvenience in actual use, and achieve the effect of convenient use
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[0028] figure 1 It is the principle block diagram of the present invention. The non-contact audio device volume controller includes an electronic volume control chip, a front circuit and a follow-up circuit. The L and R input terminals of the electronic volume control chip are respectively connected to the L and R audio signals of the front circuit. The output terminal is connected. The L and R output terminals of the electronic volume control chip are respectively connected to the L and R audio signal input terminals of the subsequent circuit; it also includes a photoelectric sensor control module with at least 2 infrared sensors; and a receiving photoelectric sensor control module. The single-chip microcomputer that transmits the infrared light data signal, judges the characteristics of the infrared light data signal, and outputs the control code signal.
[0029] The schematic diagram of the photoelectric induction control module and the single-chip circuit is as follows figure...
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