Patents by Inventor Lei Shao

Lei Shao 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).

  • Signal spectrum steering method, apparatus, and system
    Patent number: 7676197
    Abstract: A computing platform includes a wireless interface and other devices that may cause interference to the wireless interface. The other devices may change frequencies of operation or data rates to steer signal spectrum away from current wireless channels and reduce interference to the wireless interface.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: March 9, 2010
    Assignee: Intel Corporation
    Inventors: Xintian E. Lin, Qinghua Li, Lei Shao, Allen W. Bettner
  • Platform noise mitigation
    Publication number: 20090086841
    Abstract: In one embodiment of the invention, a Fourier transform unit convert a unsynchronized received through multiple antennas to a frequency domain. Also, a spectrum estimation unit determines a power spectrum for the unsynchronized data. A notch filter removes data within a frequency band from additional unsynchronized data based on the power spectrum. A synchronization unit synchronizes the notch filtered data and a noise estimation unit determines a noise covariance matrix between the synchronized data received from multiple antennas. In addition, an equalization unit performs channel equalization on the synchronized data based on the noise covariance matrix.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Inventors: Yongfang Guo, Lei Shao, Ernest T. Tsui, Bernard Arambepola, Thushara Hewavithana
  • Multicarrier transmitter, multicarrier receiver, and methods for communicating multiple spatial signal streams
    Patent number: 7440510
    Abstract: A multicarrier transmitter includes a space-frequency interleaver and a space-frequency coder to encode multicarrier signals for transmission over a plurality of spatial channels.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: October 21, 2008
    Assignee: Intel Corporation
    Inventors: Sumeet Sandhu, Lei Shao
  • Multiple antenna systems and method using high-throughput space-frequency block codes
    Patent number: 7315577
    Abstract: A multicarrier transmitter uses high-throughput space-frequency block codes to map transmit symbols to a particular transmit antenna and a particular subcarrier of a multicarrier communication channel.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 1, 2008
    Assignee: Intel Corporation
    Inventor: Lei Shao
  • Multicarrier receivers and methods for separating transmitted signals in a multiple antenna system
    Patent number: 7289585
    Abstract: A multicarrier receiver includes spatial channel decouplers to separate signal components that are separately transmitted with more than one transmit antenna or over more than one spatial channel.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: October 30, 2007
    Assignee: Intel Corporation
    Inventors: Sumeet Sandhu, Lei Shao
  • Signal spectrum steering method, apparatus, and system
    Publication number: 20070004339
    Abstract: A computing platform includes a wireless interface and other devices that may cause interference to the wireless interface. The other devices may change frequencies of operation or data rates to steer signal spectrum away from current wireless channels and reduce interference to the wireless interface.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Xintian Lin, Qinghua Li, Lei Shao, Allen Bettner
  • Multicarrier receivers and methods for separating transmitted signals in a multiple antenna system
    Publication number: 20050152484
    Abstract: A multicarrier receiver includes spatial channel decouplers to separate signal components that are separately transmitted with more than one transmit antenna or over more than one spatial channel.
    Type: Application
    Filed: March 30, 2004
    Publication date: July 14, 2005
    Inventors: Sumeet Sandhu, Lei Shao
  • Apparatus and associated methods to implement a high throughput wireless communication system
    Publication number: 20050128936
    Abstract: An apparatus and associated methods to implement a high throughput wireless communication system are generally presented.
    Type: Application
    Filed: September 15, 2004
    Publication date: June 16, 2005
    Inventor: Lei Shao
  • Multicarrier transmitter, multicarrier receiver, and methods for communicating multiple spatial signal streams
    Publication number: 20050058217
    Abstract: A multicarrier transmitter includes a space-frequency interleaver and a space-frequency coder to encode multicarrier signals for transmission over a plurality of spatial channels.
    Type: Application
    Filed: June 28, 2004
    Publication date: March 17, 2005
    Inventors: Sumeet Sandhu, Lei Shao
  • Multiple antenna systems and methods using high-throughput space-frequency block codes
    Publication number: 20050058212
    Abstract: A multicarrier transmitter uses high-throughput space-frequency block codes to map transmit symbols to a particular transmit antenna and a particular subcarrier of a multicarrier communication channel.
    Type: Application
    Filed: March 30, 2004
    Publication date: March 17, 2005
    Inventor: Lei Shao
  • Apparatus and associated methods to introduce diversity in a multicarrier communication channel
    Publication number: 20040257978
    Abstract: An apparatus and associated methods to improve diversity gain while preserving channel throughput in a multicarrier communication channel are generally presented.
    Type: Application
    Filed: February 27, 2004
    Publication date: December 23, 2004
    Inventors: Lei Shao, Sumit Roy, Sumeet Sandhu
  • Apparatus and associated methods to introduce diversity in a multicarrier communication channel
    Publication number: 20040258174
    Abstract: An apparatus and associated methods to improve diversity gain while preserving channel throughput in a multicarrier communication channel are generally presented.
    Type: Application
    Filed: February 26, 2004
    Publication date: December 23, 2004
    Inventors: Lei Shao, Sumit Roy, Sumeet Sandhu