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Television picture special effects system using digital memory techniques

  • US 4,178,613 A
  • Filed: 10/04/1977
  • Issued: 12/11/1979
  • Est. Priority Date: 10/05/1976
  • Status: Expired due to Term
First Claim
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1. A special effects system for a television signal, said television signal including horizontal and vertical synchronizing signals, said system comprising:

  • memory means responsive to a write-in address signal for storing said television signal;

    means responsive to said horizontal and vertical synchronizing signals for producing said write-in address signal;

    means for producing a read-out address signal, the stored television signal being read out in response to said readout address signal;

    means responsive to a control signal for controlling at least one of said write-in and read-out address signals, said controlling means including means responsive to said control signal for producing a full control width signal representing the width of said control signal, means responsive to said full control width signal for producing a half control width signal representing a half of the width of said control signal, and means for adding said half control width signal to at least one of said address signals.

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