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Signature verification method and apparatus

  • US 4,286,255 A
  • Filed: 05/02/1980
  • Issued: 08/25/1981
  • Est. Priority Date: 02/22/1979
  • Status: Expired due to Term
First Claim
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1. Apparatus for use in signature verification by comparing features of a signature to be validated against features of a signature standard recorded in binary form, comprising:

  • scanning means for scanning a document bearing a signature to be validated, said scanning means providing a first plurality of signals representative of the reflectivity of the signature and the document;

    first means coupled to receive said first plurality of signals and, in response to said signals, generate mode signals, write enable signals, and field indicator signals;

    second means coupled to receive said first plurality of signals and extract a plurality of digital signals representing the electrical values of an envelope formed by a reference line founding the lower part of a signature and a line founding the upper part of the signature where the scanning means scans across the lines of the envelope; and

    a data router coupled responsive to a first set of said mode signals to direct said digital signals for recording in a memory device;

    said data router responding to a second set of said mode signals to direct digital signals recorded in said memory device to a computer for comparison against features of a standard signature recorded therein.

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