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System and method for automatically controlling the audio output of a television

  • US 5,369,440 A
  • Filed: 11/19/1992
  • Issued: 11/29/1994
  • Est. Priority Date: 11/19/1992
  • Status: Expired due to Term
First Claim
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1. A method of automatically controlling the audio output of a television so as to avoid listening to undesired program material comprising the steps of:

  • a. generating digital information corresponding to at least a portion of said undesired program material and unique to said undesired program material, then,b. comparing digital information corresponding to the audio output of said television with said generated digital information corresponding to said at least a portion of said undesired program material to determine the presence of said undesired program material in said audio output and generating an indicator signal as soon as said undesired program material is detected,c. generating a control signal in response to said indicator signal, andd. applying said control signal to said television to control the audio output of said television.

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