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Display control apparatus and method of using same

  • US 5,499,036 A
  • Filed: 09/01/1993
  • Issued: 03/12/1996
  • Est. Priority Date: 07/21/1988
  • Status: Expired due to Term
First Claim
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1. In combination with a liquid crystal display unit and means for producing video signals, a data display control apparatus, comprising:

  • discriminating means responsive to a predetermined sequence of the video signals for decoding them and generating a data command signal so that the liquid crystal display unit using the video signals can respond thereto for display utilization purposes;

    means responsive to said data command signal for enabling the liquid crystal display unit to receive selectively the video signals generated by the means for producing video signals for display utilization purposes; and

    wherein said discrimination means is differential comparator means for establishing a video information signal and for generating a clock signal to sample said information signal to facilitate the generation of said data command signal.

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