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Method and apparatus for selectively altering a television video signal in real-time

  • US 6,771,316 B1
  • Filed: 07/03/2002
  • Issued: 08/03/2004
  • Est. Priority Date: 11/01/1996
  • Status: Expired due to Fees
First Claim
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1. A method of operating a television receiver comprising:

  • receiving a television signal in a television receiver;

    detecting a first event in the television signal;

    capturing a signature associated with a first segment of the television signal following the first event;

    comparing the captured signature to stored signatures;

    if the captured signature matches one of the stored signatures, controlling the television receiver to alter a display of the television signal;

    if the captured signature does not match any of the stored signatures, storing the captured signature in a temporary storage location;

    adding the captured signature to the stored signatures if a second event in the television signal is detected within a predetermined window of time following the first event;

    wherein the first and second events are each at least one of the group consisting of one or more black frames, one or more colored frames, low audio and a frame break.

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