Patents by Inventor Carl E. Walding

Carl E. Walding 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).

  • Method of operating a low standby power system for a television receiver
    Patent number: 5414475
    Abstract: A television receiver includes a microprocessor, a switched mode power supply and a storage capacitor. The storage capacitor supplies standby power to the microprocessor when the television receiver is off and the switched mode power supply is disabled. While the television receiver is off, the microprocessor monitors the capacitor voltage and turns on the switched mode power supply to recharge the capacitor when its voltage level falls to a predetermined minimum. The microprocessor turns off the switched mode power supply when the capacitor voltage indicates that the capacitor has been recharged.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: May 9, 1995
    Assignee: Zenith Electronics Corp.
    Inventors: William A. Trzyna, Carl E. Walding