Patents by Inventor Robert C. Gellner

Robert C. Gellner 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).

  • Monopulse azimuth radar system for automotive vehicle tracking
    Patent number: 5402129
    Abstract: A monopulse vehicular radar system for tracking a target about an automotive vehicle senses a transmitted signal reflected back from the target and received at two different locations, determines the sum and the difference of the reflected signals sensed at the two locations, and compares the sum and difference to determine the deviation of the target from a reference azimuth. A source frequency provided by a Gunn diode is applied to and transmitted by a two-lobe monopulse antenna. The antenna lobes detect the reflected signals from the target by sensing them at the two different lobes. A hybrid junction provides sum and difference signals to mixers which homodyne the signals to produce sum and difference Doppler frequency signals using the source frequency. The Doppler frequency signals are amplified and then compared to determine the deviation of the target from the reference azimuth.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: March 28, 1995
    Assignee: Vorad Safety Systems, Inc.
    Inventors: Robert C. Gellner, Bryan D. Woll, Jerry D. Woll, John W. Davis, Duane G. Tubbs
  • Monopulse azimuth radar system for automotive vehicle tracking
    Patent number: RE36819
    Abstract: A monopulse vehicular radar system for tracking a target about an automotive vehicle senses a transmitted signal reflected back from the target and received at two different locations, determines the sum and the difference of the reflected signals sensed at the two locations, and compares the sum and difference to determine the deviation of the target from a reference azimuth. A source frequency provided by a Gunn diode is applied to and transmitted by a two-lobe monopulse antenna. The antenna lobes detect the reflected signals from the target by sensing them at the two different lobes. A hybrid junction provides sum and difference signals to mixers which homodyne the signals to produce sum and difference Doppler frequency signals using the source frequency. The Doppler frequency signals are amplified and then compared to determine the deviation of the target from the reference azimuth.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: August 15, 2000
    Assignee: Vorad Safety Systems, Inc.
    Inventors: Robert C. Gellner, Bryan D. Woll, Jerry D. Woll, John W. Davis, Duane G. Tubbs