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Bar code display apparatus

  • US 5,939,699 A
  • Filed: 05/28/1997
  • Issued: 08/17/1999
  • Est. Priority Date: 05/28/1997
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a time-varying nonpredictable code generator;

    a scrolling display device responsive to the time-varying nonpredictable code generator to display a time-varying nonpredictable bar code wherein the bar code scrolling display displays a first bar code at a first time and a second bar code at a second time, the second bar code having a bar removed from an end of the first bar code;

    a housing to support the time-varying nonpredictable code generator, the housing having an inset portion at which the display device is accessible.

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