Patents by Inventor Joseph G. Mobley, II

Joseph G. Mobley, II 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).

  • Patent number: 4748667
    Abstract: Scrambling and descrambling systems utilizing jamming signals provide improved pictures with minimal distortion due to ghosts and artifacts. The television signal is combined with a jamming signal or signals located preferably in the vestigial sideband (VSB) of the modulated picture carrier and at about a null in the spectrum of the modulation of the picture carrier by the horizontal sync. The jamming signal or signals also preferably are placed between the harmonic components of the horizontal sync which define the horizontal sync spectrum and at frequencies which comply with governmental regulations respecting frequency locations of strong signals of CATV purposes. The jamming signals are generated by phase locking to the horizontal sync signals of the television signals or to a submultiple of the horizontal sync frequency.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: May 31, 1988
    Assignee: Scientific Atlanta
    Inventors: James O. Farmer, Anatoly Kozushin, Herman A. Kruse, William P. LaFay, Christopher P. Lewis, Frank R. Little, Jr., Leo Montreuil, Leo J. Thompson, Lamar E. West, Jr., Joseph G. Mobley, II
  • Patent number: 4641181
    Abstract: In an FM television signal angle modulated with luminance and chrominance information, there exists a high degree of correlation between picture elements occurring one line period apart. In an effort to steer the pass band of a tunable bandpass filter to the instantaneous frequency of the incoming television signal, a steering signal is developed which utilizes this high degree of correlation. For NTSC systems, luminance information is delayed by one-line period (63.5 .mu.s in the U.S.A.) and combined with suitably delayed chrominance information to form the filter's steering signal. For MAC systems, one-line delayed luminance and two-line delayed chrominance information are alternately applied to the filter as its steering signal. By steering the pass band of the filter to the incoming signal, maximum signal will be captured with minimum noise, enhancing the signal-to-noise ratio of a color television system.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: February 3, 1987
    Assignee: Scientific Atlanta, Inc.
    Inventor: Joseph G. Mobley, II
  • Patent number: 4584599
    Abstract: In an FM television signal angle modulated with luminance and chrominance information, there exists a high degree of correlation between picture elements occurring one line period apart. In an effort to steer the pass band of a tunable bandpass filter to the instantaneous frequency of the incoming television signal, a steering signal is developed which utilizes this high degree of correlation. For NTSC systems, luminance information is delayed by one-line period (63.5 us in the U.S.A.) and combined with suitable delayed chrominance information to form the filter's steering signal. For MAC systems, one-line delayed luminance and two-line delayed chrominance information are alternately applied to the filter as its steering signal. By steering the pass band of the filter to the incoming signal, maximum signal will be captured with minimum noise, enhancing the signal-to-noise ratio of a color television system.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: April 22, 1986
    Assignee: Scientific Atlanta, Inc.
    Inventor: Joseph G. Mobley, II