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Multi-channel speaker system and a connection system thereof

  • US 7,492,912 B2
  • Filed: 03/18/2004
  • Issued: 02/17/2009
  • Est. Priority Date: 03/18/2003
  • Status: Active Grant
First Claim
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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, anda 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, anda digital/analog converter D/A for converting the separated digital signal to an analog signal.

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