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On-line character recognition using closed-loop detector

  • US 4,495,646 A
  • Filed: 04/20/1982
  • Issued: 01/22/1985
  • Est. Priority Date: 04/20/1982
  • Status: Expired due to Fees
First Claim
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1. The method of recognizing handwritten characters being written by a stylus upon a writing surface, comprising:

  • a. sensing stylus contact with the writing surface;

    b. sensing all directions traveled by the stylus upon the writing surface using a closed-loop detector;

    c. storing all directions sensed in the form of a data string;

    d. sensing the end of stylus contact with the writing surface;

    e. matching the stored string with a table of known strings.

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