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  • Patent number: 8160028
    Abstract: Stations in a N×N multiple-input-multiple-output (MIMO) wireless network always puncture the weakest spatial channel. N?1 spatial channels are always used regardless of the channel state.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: April 17, 2012
    Assignee: Intel Corporation
    Inventor: Ada S. Y. Poon
  • Patent number: 7710925
    Abstract: Stations in an N×N multiple-input-multiple-output (MIMO) wireless network always puncture the weakest spatial channel. A receiving station determines channel state information for N spatial channels and feeds back to the transmitting station channel state information for only N?1 spatial channels. The channel state information may include a beamforming matrix to cause the transmitting station to utilize N?1 spatial channels.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: May 4, 2010
    Assignee: Intel Corporation
    Inventor: Ada S. Y. Poon
  • Patent number: 7904117
    Abstract: A method and apparatus is disclosed herein for wireless communication with adaptive beamforming. In one embodiment, the apparatus comprises a processor, a radio frequency (RF) transmitter having a digitally controlled phased array antenna coupled to and controlled by the processor to transmit content using adaptive beamforming, and an interface to a wireless communication channel coupled to the processor to communicate antenna information relating to the use of the phased array antenna and to communicate information to facilitate playing the content at another location.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 8, 2011
    Assignee: SIBEAM
    Inventors: Chinh H. Doan, Sohrab Emami-Neyestanak, John Marshall, Chuen-Shen Shung, Tim Arthur Williams, Robert W. Brodersen, Jeffrey M. Gilbert, Ada Shuk Yan Poon
  • Publication number: 20070281632
    Abstract: A system of the present application includes a first wireless communication device including a number of first device antenna elements, first device processing circuitry, and a first device transmitter to provide a wireless transmission of transmitter vectors corresponding to spatial filters. Also included is a second communication device with a number of second device antenna elements, a second device receiver to receive one or more signals corresponding to the wireless transmission of the transmitter vectors, and second device processing circuitry to generate receiver vectors corresponding to those signals. One or more of the first device and the second device is structured to determine angular spectrum as a function of the transmitter vectors, the receiver vectors, a transmit array manifold, and a receive array manifold.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 6, 2007
    Inventor: Ada Shuk Yan Poon