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Surveillance system

  • US 4,237,483 A
  • Filed: 03/19/1979
  • Issued: 12/02/1980
  • Est. Priority Date: 12/22/1976
  • Status: Expired due to Term
First Claim
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1. A surveillance system for point of sale stations comprising:

  • a television camera for developing frames of video signals representative of sales transactions performed by a human operator at a point of sale station where goods are moved by the operator across a sales counter and the prices are registered;

    means including at least one operator-controlled register for developing digital electronic signals representing data including price information entered by said operator at said point of sale station about said sales transactions concurrently with the development of said video frames;

    a video display device for visually displaying image frames of said transactions corresponding to and from associated frames of composite signals;

    and control means for generating a set of video character signals from said digital data signals of each of said sales transactions and for forming each of said frames of composite signals from one of said frames of video signals and a set of said character signals of the same transactions in a certain relation so that the associated character images are positioned on said display device in a certain location with relation to the associated image frames of said transaction.

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