Stereo decoding system

  • US 9,374,117 B2
  • Filed: 07/24/2012
  • Issued: 06/21/2016
  • Est. Priority Date: 07/25/2011
  • Status: Active Grant
First Claim
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1. A method for decoding a stereo multiplex signal, comprising:

  • converting the stereo multiplex signal into a sum signal (L+R) and a difference signal (L−

    R), where the sum signal and the difference signal are derived from a left stereo signal (L) and right stereo signal (R);

    determining a first transfer function HL(f) and a second transfer function HR(f) from the sum signal (L+R) and the difference signal (L−

    R), wherein the first transfer function HL(f) and the second transfer function HR(f) are each variable and adjustable;

    adaptively filtering the sum signal (L+R) by modifying first filter coefficients according to the first transfer function to provide the left stereo signal (L); and

    adaptively filtering the sum signal (L+R) by modifying second filter coefficients according to the second transfer function to provide the right stereo signal (R).

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