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Identification system using computer generated moire

  • US 4,921,278 A
  • Filed: 11/09/1988
  • Issued: 05/01/1990
  • Est. Priority Date: 04/01/1985
  • Status: Expired due to Fees
First Claim
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1. An identification card wherein an image incorporating identifying information is encoded in an object grid mounted to the identification card, said object grid including a computer-generated pattern of broken lines produced from said image and from a reference grid including a random pattern of broken lines.

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