Patents by Inventor Steven C. Hickman

Steven C. Hickman 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).

  • Character recognition system employing extraneous and required peak detection with variable threshold controlled timing
    Patent number: 3987411
    Abstract: A character recognition system utilizing precisely designed correlation network to match the voltage waveform of a character being read with the closest ideal waveform in a standard character font along with an extraneous peak detector that determines whether extraneous peaks are present in the voltage waveform and a required peak detector that determines whether a predetermined pattern of required peaks are missing from the voltage waveform for that voltage waveform to have been induced by the printed character with which it was preliminarily identified, under the control of a variable threshold controlled timing circuit for an extended dynamic range of voltage waveforms.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: October 19, 1976
    Assignee: Burroughs Corporation
    Inventors: Karlis Kruklitis, Christopher J. Ratkowski, Steven C. Hickman