Patents by Inventor Philip Bolt

Philip Bolt 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).

  • Interference optimized OFDM
    Patent number: 7813701
    Abstract: A wireless broadband communications system that provides increased reliability in environments in which portions of the available operating frequency band are subject to interference. The system determines whether the operating frequency band is being subjected to interference. If so, then the system determines whether such interference is affecting one or more portions of the band. If interference is affecting just portions of the band, then the system reduces the data rate and the number of sub-carriers used to transmit data. Next, the system allocates the data to be transmitted to the sub-carriers currently being subjected to the lowest levels of interference, while allocating no data to the sub-carriers currently being subjected to the highest levels of interference. In this way, the system allocates the data to be transmitted to the sub-carriers occupying optimal portions of the operating frequency band, in response to detected changes in the interference environment.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: October 12, 2010
    Assignee: Piping Hot Networks Limited
    Inventors: Peter N. Strong, Nigel King, Philip Bolt
  • INTERFERENCE OPTIMIZED OFDM
    Publication number: 20080057869
    Abstract: A wireless broadband communications system that provides increased reliability in environments in which portions of the available operating frequency band are subject to interference. The system determines whether the operating frequency band is being subjected to interference. If so, then the system determines whether such interference is affecting one or more portions of the band. If interference is affecting just portions of the band, then the system reduces the data rate and the number of sub-carriers used to transmit data. Next, the system allocates the data to be transmitted to the sub-carriers currently being subjected to the lowest levels of interference, while allocating no data to the sub-carriers currently being subjected to the highest levels of interference. In this way, the system allocates the data to be transmitted to the sub-carriers occupying optimal portions of the operating frequency band, in response to detected changes in the interference environment.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 6, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Peter N. Strong, Nigel King, Philip Bolt