Patents by Inventor Donald H. Coffman

Donald H. Coffman 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).

  • Single fiber optic wand system
    Patent number: 4467196
    Abstract: A fiber optic scanner system for reading coded patterns is provided having a single optical fiber extending from the reading end of the scanner tip to a remote terminal. The remote terminal includes an optical signal generator for generating and driving light pulses along the single optical fiber to the reading end of the scanner member so as to illuminate a bar code and obtain reflected pulses therefrom which are carried to the remote terminal receiver and decoded.
    Type: Grant
    Filed: June 29, 1982
    Date of Patent: August 21, 1984
    Assignee: International Business Machines Corporation
    Inventors: Layton Balliet, Donald H. Coffman, Carlos Gomez