Patents by Inventor Stephen W. Alland

Stephen W. Alland 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).

  • Publication number: 20110163904
    Abstract: An integrated radar-camera sensor is provided which includes a camera sensor component and a radar sensor component both housed within a common single module housing. The sensor module also includes processing circuitry for processing the radar sensor and camera outputs. The sensor module is located behind the windshield of a vehicle and may include glare and/or EMI shields.
    Type: Application
    Filed: October 6, 2009
    Publication date: July 7, 2011
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Stephen W. Alland, Richard C. Lind, William G. Shogren, Lawrence A. Humm, William A. Bauson, Shawn Shi
  • Patent number: 7868828
    Abstract: An antenna formed of multiple sub-arrays, each having rows of interconnected radiating elements. One row of radiating elements is shared between two sub-arrays by a coupler which isolatingly couples one row of radiating elements to each of two sub-arrays allowing the feed to the two sub-arrays to be isolatingly applied to the shared row of radiating elements while suppressing grating lobe generation and providing high sub-array isolation.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: January 11, 2011
    Assignee: Delphi Technologies, Inc.
    Inventors: Shawn Shi, Stephen W. Alland
  • Patent number: 7639171
    Abstract: A radar system and method is provided, in which the radar system includes a first transmitting portion of antenna elements, a second transmitting portion of antenna elements, and a receiving portion of antenna elements, such that the receiving antenna elements form a plurality of subarrays that represent real and synthetic antenna elements. The radar system further includes a transceiving device having a switching matrix. At least first and second switching transmit antenna elements are configured and time-multiplexed, wherein a receive aperture of the receiving antenna elements is increased.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: December 29, 2009
    Assignee: Delphi Technologies, Inc.
    Inventors: Stephen W. Alland, James F. Searcy
  • Publication number: 20090146904
    Abstract: An antenna formed of multiple sub-arrays, each having rows of interconnected radiating elements. One row of radiating elements is shared between two sub-arrays by a coupler which isolatingly couples one row of radiating elements to each of two sub-arrays allowing the feed to the two sub-arrays to be isolatingly applied to the shared row of radiating elements while suppressing grating lobe generation and providing high sub-array isolation.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 11, 2009
    Inventors: Shawn Shi, Stephen W. Alland
  • Publication number: 20090085800
    Abstract: A radar system and method is provided, in which the radar system includes a first transmitting portion of antenna elements, a second transmitting portion of antenna elements, and a receiving portion of antenna elements, such that the receiving antenna elements form a plurality of subarrays that represent real and synthetic antenna elements. The radar system further includes a transceiving device having a switching matrix. At least first and second switching transmit antenna elements are configured and time-multiplexed, wherein a receive aperture of the receiving antenna elements is increased.
    Type: Application
    Filed: February 28, 2008
    Publication date: April 2, 2009
    Inventors: Stephen W. Alland, James F. Searcy
  • Patent number: 7474262
    Abstract: Digital beamforming is provided for use with electronically scanned radar. In an aspect, the present invention provides enhanced sensitivity, wide angle or field of view (FOV) coverage with narrow beams, minimized number of receivers, reduced sidelobes, eliminated grating lobes and beam compensation for target motion. In an aspect, the present invention employs a uniform overlapped subarray feed network, a time multiplexed switch matrix, and a restructured digital signal processor. Antenna channels share a receiver, rather than maintain a dedicated receiver for each antenna element, as in conventional systems. In an aspect, Doppler/frequency filtering is performed on each antenna element or subarray output prior to digital beamforming. Further, Doppler compensation is employed following Doppler/frequency filtering, followed by digital beamforming.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: January 6, 2009
    Assignee: Delphi Technologies, Inc.
    Inventor: Stephen W. Alland
  • Patent number: 5365236
    Abstract: A tri-sensor track association based on ranked candidate pairs and measures of their proximity is described. The track association employs a three dimensional assignment scheme, simple enough to be implemented in real-time, which preserves the most accurate pairwise links of the highest ranked pairs, requires at least two pairwise links for any tri-sensor global track association, and minimizes the time average statistical bearing displacement between associated tracks.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: November 15, 1994
    Assignee: Hughes Aircraft Company
    Inventors: John T. Fagarasan, Stephen W. Alland, Ronald J. Jakaub
  • Patent number: 5317319
    Abstract: A tri-sensor track association based on ranked candidate pairs and measures of their proximity is described. The track association employs a three dimensional assignment scheme, simple enough to be implemented in real-time, which preserves the most accurate pairwise links of the highest ranked pairs, requires at least two pairwise links for any tri-sensor global track association, and minimizes the time average statistical bearing displacement between associated tracks.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: May 31, 1994
    Assignee: Hughes Aircraft Company
    Inventors: John T. Fagarasan, Stephen W. Alland, Ronald J. Jakaub