Patents by Inventor Alvin V. Donahey

Alvin V. Donahey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 3996557
    Abstract: Apparatus and method for the recognition of hand written alphanumeric characters as they are being formed. The different sequence of strokes for each letter of the alphabet and numbers, as it is written, is codified. The apparatus comprises a minimum number of parallel conductive bars which produce a characteristic signal when crossed or touched with the pen as the alphanumeric character is being formed to reproduce the identifying code. A computer having the distinctive alphanumeric character code stored therein compares the signals derived by contact of the pen with the conductive bars and renders an appropriate readout for utilization. The invention encompasses script writing and word identification as well as the conventional printing of the individual letters.
    Type: Grant
    Filed: January 14, 1975
    Date of Patent: December 7, 1976
    Assignee: MI.sup.2 Corporation
    Inventor: Alvin V. Donahey