Patents by Inventor Douglas Frank Stolarz

Douglas Frank Stolarz 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: 7333531
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are to located on the same azimuth but are separated in elevation.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: February 19, 2008
    Assignee: AT&T Mobility II LLC
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Patent number: 7061969
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: June 13, 2006
    Assignee: Cingular Wireless II, LLC
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Patent number: 6987958
    Abstract: A method provides a technique for optimally combining communication beams. The method forms a plurality of beams from captured signals. One beam is selected as the primary beam while a subset of the others are applied to auxiliary receivers. A digital signal processor weights and combines these primary and secondary beams.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: January 17, 2006
    Assignee: Cingular Wirless II, Inc.
    Inventors: Titus Lo, Dennis Rosenauer, Douglas Frank Stolarz
  • Patent number: 6845243
    Abstract: The composition of an object within a wireless communication channel is determined by analyzing a symmetry characteristic of a polarization pattern of a received signal. The signal is transmitted through the communication channel using a known polarization. A receiver receives the signal and determines a symmetry characteristic of the polarization pattern of the received signal. The symmetry characteristic is matched to a stored symmetry characteristic to determine the composition of the object. Based on the composition of the object, the susceptibility of the wireless communication channel to wind-induced fading can be determined.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: January 18, 2005
    Inventors: Aubrey L. Gaddy, David G. Michelson, Douglas Frank Stolarz
  • Publication number: 20050002440
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 6, 2005
    Inventors: Siavash Alamouti, Joel Becker, Douglas Frank Stolarz
  • Patent number: 6782039
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: August 24, 2004
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Publication number: 20030231700
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Application
    Filed: May 8, 2003
    Publication date: December 18, 2003
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Patent number: 6600776
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: July 29, 2003
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Patent number: 6584144
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: June 24, 2003
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Publication number: 20020159506
    Abstract: Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
    Type: Application
    Filed: December 10, 2001
    Publication date: October 31, 2002
    Inventors: Siavash Alamouti, Joel E. Becker, Douglas Frank Stolarz
  • Patent number: 6377783
    Abstract: A method provides a technique for optimally combining communication beams. The method forms a plurality of beams from captured signals. One beam is selected as the primary beam while a subset of the others are applied to auxiliary receivers. A digital signal processor weights and combines these primary and secondary beams.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: April 23, 2002
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Titus Lo, Dennis Rosenauer, Douglas Frank Stolarz