Patents by Inventor Clifford L. Carpenter

Clifford L. Carpenter 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).

  • Analog to digital signal conversion
    Patent number: 5352938
    Abstract: A digital equivalent of a periodic analog signal is generated in a manner substantially insensitive to variations in the reference about which the analog signal oscillates by switching the digital equivalent between high and low levels based on reference voltages derived from the peaks and valleys of the analog signal. The manner of generating the digital equivalent is substantially insensitive to common mode noise across the analog signal generator by locking a differential signal output when significant common mode noise in sensed. Generator faults are also diagnosed.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: October 4, 1994
    Assignee: Delco Electronics Corporation
    Inventors: William D. Wise, Larry R. Hach, Clifford L. Carpenter