Patents by Inventor Charles E. Ayers

Charles E. Ayers 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).

  • Circuit for generating center pulse width modulated waveforms and non-impact printer using same
    Patent number: 4750010
    Abstract: A circuit for generating a set of center pulse-width modulated waveforms comprises a counter having a time changing count, and comparators which compare the count with respective preset counts. The preset counts to the comparators being set so that the set of waveforms created is center pulse-width modulated.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: June 7, 1988
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Ayers, Kenneth D. Kieffer, Yee S. Ng, Hieu T. Pham, Pin S. Tschang, Eric K. Zeise