Patents by Inventor Neil Colin Campbell

Neil Colin Campbell 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).

  • Noise based quality estimation for signals
    Patent number: 8340611
    Abstract: A method of calculating the noise power in a received signal containing a pilot channel, the method comprising estimating the power of the received signal, estimating the power of the pilot channel and calculating the noise power as a function of the estimated signal and the pilot channel powers. The noise power thus deduced may be used as a parameter of a function defining a channel quality indicator. The invention extends to corresponding apparatus.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: December 25, 2012
    Assignee: MStar Semiconductor, Inc.
    Inventor: Neil Colin Campbell
  • Digital radio systems
    Patent number: 8270456
    Abstract: Apparatus comprising a pre-filter rake architecture with various features designed to, in at least some circumstances, to lessen the data processing burden associated with the architecture. In one embodiment, the pre-filter aspect can be disabled.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: September 18, 2012
    Assignee: MStar Semiconductor, Inc.
    Inventors: Martin Leach, Cyril Valadon, Neil Colin Campbell
  • Channel impulse response estimate management
    Patent number: 8218699
    Abstract: A method of steering a channel estimation search window, the method comprising providing a series of raw CIR tap values to span a channel estimation search window containing a sub-window whose contents are intended to be passed for further processing to produce a refined CIR estimate, determining, amongst a plurality of groups of continuous tap values within the window, the group containing the largest amount of signal energy and time-shifting the window as necessary to arrange that the group so determined occupies the sub-window.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: July 10, 2012
    Assignee: MStar Semiconductor, Inc.
    Inventors: Cyril Valadon, Richard Lane, Neil Colin Campbell
  • Noise Based Quality Estimation for Signals
    Publication number: 20100069016
    Abstract: A method of calculating the noise power in a received signal containing a pilot channel, the method comprising estimating the power of the received signal, estimating the power of the pilot channel and calculating the noise power as a function of the estimated signal and the pilot channel powers. The noise power thus deduced may be used as a parameter of a function defining a channel quality indicator. The invention extends to corresponding apparatus.
    Type: Application
    Filed: December 4, 2007
    Publication date: March 18, 2010
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventor: Neil Colin Campbell
  • Channel Impulse Response Estimate Management
    Publication number: 20100040176
    Abstract: A method of steering a channel estimation search window, the method comprising providing a series of raw CIR tap values to span a channel estimation search window containing a sub-window whose contents are intended to be passed for further processing to produce a refined CIR estimate, determining, amongst a plurality of groups of continuous tap values within the window, the group containing the largest amount of signal energy and time-shifting the window as necessary to arrange that the group so determined occupies the sub-window.
    Type: Application
    Filed: June 12, 2007
    Publication date: February 18, 2010
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: Cyril Valadon, Richard Lane, Neil Colin Campbell
  • Digital Radio Systems
    Publication number: 20100014614
    Abstract: Apparatus comprising a pre-filter rake architecture with various features designed to, in at least some circumstances, to lessen the data processing burden associated with the architecture. In one embodiment, the pre-filter aspect can be disabled.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 21, 2010
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: Martin Leach, Cyril Valadon, Neil Colin Campbell