Method for scanning image information

  • US 4,969,038 A
  • Filed: 09/22/1989
  • Issued: 11/06/1990
  • Est. Priority Date: 03/11/1963
  • Status: Expired due to Fees
First Claim
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1. A method for analyzing electro-optically scannable information using information in a memory, said method comprising:

  • (a) scanning an image field containing variable image information with a radiation beam,(b) detecting optical variations in said image field with an electro-optical detection means,(c) generating electrical detection signals relating to said radiation beam scanning on the output of said detection means,(d) comparing said electrical detection signals with information obtained from recordings in a memory, and(e) generating a control signal when an operable match is effected between select of said electrical detection signals and the information recorded in said memory.

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