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System and method for verifying content displayed on an electronic visual display

  • US 7,614,065 B2
  • Filed: 10/03/2002
  • Issued: 11/03/2009
  • Est. Priority Date: 12/17/2001
  • Status: Expired due to Fees
First Claim
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1. A method for verifying display of visual content displayed on an electronic visual display, said method comprising:

  • converting a digital verification code signal to a visual verification code signal, the digital verification code signal being representative of a verification code associated with the visual content;

    displaying the visual verification code signal in relation to a visual content signal representative of the visual content on the electronic visual display;

    sensing the visual verification code signal as displayed by the electronic visual display;

    based on the sensed visual verification code signal, determining the verification code as displayed in the visual verification code signal;

    generating a timestamp that indicates time of day that the visual content is displayed; and

    verifying that the visual content was timely displayed based on the determination of the displayed verification code and generated timestamp.

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