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System and method for controlling audio equipment

  • US 8,502,058 B2
  • Filed: 07/09/2012
  • Issued: 08/06/2013
  • Est. Priority Date: 02/29/2000
  • Status: Expired due to Fees
First Claim
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1. A system for controlling play of audio equipment, the system comprising:

  • a disc including a control signal indicative of at least speed of disc play and directionality of disc play, the disc rotating on a turntable,wherein the disc includes an absolute control signal, in the audible range between 20 and 20,000 Hz;

    a detection filter processing the control signal to determine a relative control signal based on a phase difference between a left channel and a right channel of the control signal,wherein the relative control signal indicates directionality of disc movement; and

    a digital filter utilizing the absolute control signal and the relative control signal to determine an accurate control signal serving to control play of audio equipment.

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