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Coded document and document reading system

  • US 4,736,109 A
  • Filed: 08/13/1986
  • Issued: 04/05/1988
  • Est. Priority Date: 08/13/1986
  • Status: Expired due to Term
First Claim
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1. A coded document reader for reading a coded document of the type having a plurality of markable areas defined thereon and a first and second coded pattern disposed thereon in predetermined relation to the markable areas, said coded document reader comprising:

  • means for storing a first and second pattern signature corresponding to said coded patterns;

    means for capturing and storing an image carried on said carried document;

    means for detecting stored image signatures corresponding to said stored first and second pattern signatures; and

    means for identifying stored image data of said markable areas responsive to said detected signatures.

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