Patents by Inventor Warren C. DeVilbiss

Warren C. DeVilbiss 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).

  • Apparatus for aligning an image display device in a video signal processing and display system
    Patent number: 4769703
    Abstract: Apparatus to permit service adjustment of a television receiver includes a microprocessor which normally controls parameters of a video signal processed by the receiver. The microprocessor also automatically establishes a desired video signal reference condition for the service mode when manual service controls are to be adjusted. The service mode is entered by pressing a designated microprocessor keyboard key while plugging the receiver into a source of primary AC power.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: September 6, 1988
    Assignee: RCA Licensing Corporation
    Inventors: Gary T. Osborne, Warren C. DeVilbiss
  • Automatic determination of time base in electronic time-keeping apparatus
    Patent number: 4763193
    Abstract: An AC line signal of unknown frequency is compared to a signal of known reference to determine the frequency of the AC line signal. Thereafter, the AC line frequency signal is used as a time-base for keeping real time.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: August 9, 1988
    Assignee: RCA Licensing Corporation
    Inventor: Warren C. DeVilbiss
  • Method and apparatus for compacting and de-compacting text characters
    Patent number: 4701744
    Abstract: A television receiver includes a micro-computer which controls the receiver functions and provides on-screen display of messages for prompting the user. Display characters are compacted to minimize memory space by encoding the characters in 4-bit nibbles to maximize storage efficiency in a ROM organized to store 8-bit bytes.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: October 20, 1987
    Assignee: RCA Corporation
    Inventor: Warren C. DeVilbiss