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Device for the automatic editing, at the receiver, of unwanted program material from broadcast electrical signals

  • US 4,420,769 A
  • Filed: 03/22/1978
  • Issued: 12/13/1983
  • Est. Priority Date: 03/22/1978
  • Status: Expired due to Term
First Claim
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1. A system for the elimination of predetermined video/audio program information from broadcasted video/audio signals comprising, in combination:

  • a video/audio signal source;

    a video/audio signal;

    a video/audio signal output normally connected to said video/audio source;

    a switch to disconnect said output from said source;

    and switch operation means to cause blanking of unwanted video/audio signal information from said video/audio signal output by providing the operation of said switch correlative to the information contained within said video/audio signal and wherein said switch operation means includes a video/audio signal sampling/conversion means for sampling a content of the video/audio signal, and converting the video/audio signal samples into data bits representing digital words;

    a memory means adapted to store digital words therein;

    programming means for storing selected digital words within said memory means;

    a comparator means for comparing the output of said video/audio signal sampling means with said memory to obtain an enabling output from said comparator means when said digital words generated by said video/audio signal sampling/conversion means match;

    transmitting means for routing said enabling output to, and operating, said switch.

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