Patent ID: 7492912
Filing Date: 2009-02-17
Classification: H04R,H04S

Abstract:
1. A wiring device of a multi-channel speaker system that operates a plurality of speakers with different sound range signal values by connecting a main audio body and the plurality of speakers, comprising: a serial audio signal circuit SAC; and audio signal separating circuits ADC that are provided in each of the plurality of speakers, wherein the serial audio signal circuit SAC comprises: an analog/digital converter A/D for converting a plurality of analog signals that are generated by the main audio body to digital signals, a multi-channel control signal synthesizer SC for synthesizing the plurality of digital signals into a single digital audio signal, a clock generator CG for providing a reference clock to the synthesized digital audio signal, a digital signal synthesizer DG for synchronizing each of the digital audio signals according to the reference clock generated by the clock generator, a serial signal output member SO for converting the synchronized digital audio signal to a serial digital audio signal and outputting the serial digital audio signal, and a single wire extended from the serial signal output member SO; and wherein the audio signal separating circuit ADC comprises: a multi-channel separator for separating a digital signal corresponding to the reference clock generated by the clock generator CG from the input serial digital audio signal, and a digital/analog converter D/A for converting the separated digital signal to an analog signal.