Patents by Inventor William L. Phipps

William L. Phipps 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).

  • Digital data cryptographic system
    Patent number: 5406627
    Abstract: An audiovisual subscription system includes means for aperiodically inverting the lines of a transmitted video signal on a frame-by-frame basis and for decrypting encrypted PCM audio information which is transmitted along with the aperiodically inverted video information.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: April 11, 1995
    Assignee: NEC Home Electronics, Ltd.
    Inventors: John R. Thompson, C. J. Hunting, William L. Phipps, Steven J. Raynesford, Philip H. Rittmueller
  • Audio signal cryptographic system
    Patent number: 5267312
    Abstract: An audiovisual subscription system includes means for aperiodically inverting the lines of a transmitted video signal on a frame-by-frame basis and for decrypting encrypted PCM audio information which is transmitted along with the aperiodically inverted video information.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: November 30, 1993
    Assignee: NEC Home Electronics, Ltd.
    Inventors: John R. Thompson, C. J. Hunting, William L. Phipps, Steven J. Raynesford, Philip H. Rittmueller
  • System and method for scrambling and/or descrambling a video signal
    Patent number: 5185794
    Abstract: An audiovisual subscription system includes means for aperiodically inverting the lines of a transmitted video signal on a frame-by-frame basis and for decrypting encrypted PCM audio information which is transmitted along with the aperiodically inverted video information.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: February 9, 1993
    Assignee: NEC Home Electronics, Ltd.
    Inventors: John R. Thompson, C. J. Hunting, William L. Phipps, Steven J. Raynesford, Philip H. Rittmueller
  • System and method for detection of a pulse within a video signal
    Patent number: 5166976
    Abstract: An audiovisual subscription system includes means for aperiodically inverting the lines of a transmitted video signal of a frame-by-frame basis and for decrypting encrypted PCM audio information which is transmitted along with the aperiodically inverted video information.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: November 24, 1992
    Assignee: NEC Home Electronics, Ltd.
    Inventors: John R. Thompson, C. J. Hunting, William L. Phipps, Steven J. Raynesford, Philip H. Rittmueller
  • System and method for transmitting entertainment information to authorized ones of plural receivers
    Patent number: 5091938
    Abstract: An audiovisual subscription system includes means for aperiodically inverting the lines of a transmitted video signal on a frame-by-frame basis and for decrypting encrypted PCM audio information which is transmitted along with the aperiodically inverted video information.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: February 25, 1992
    Assignee: NEC Home Electronics, Ltd.
    Inventors: John R. Thompson, C. J. Hunting, William L. Phipps, Steven J. Raynesford, Philip H. Rittmueller
  • Compressor bleed biased acceleration schedule
    Patent number: 4186556
    Abstract: Turbine engine power extraction and acceleration capabilities are enhanced by the sensing of the amount of air that is bled off from a compressor, and biasing the acceleration schedule in relation thereto. In this way the engine shaft power extraction and/or rotor acceleration capability can be maximized by enriching the acceleration fuel schedule when compressor bleed air is extracted. The selected degree of enrichment may be applied so as to consume the entire stall margin gain, whereby the engine is made to follow the same acceleration trajectory on a compressor map notwithstanding the degree of compressor bleed, or the degree of enrichment may be applied so as to obtain the desired performance level while retaining a portion of the gained stall margin.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: February 5, 1980
    Assignee: General Electric Company
    Inventors: William C. Lowry, William L. Phipps