Patents by Inventor Benjamin Imai

Benjamin Imai 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).

  • GPS Receiver
    Patent number: 6778135
    Abstract: The global positioning system (GPS) receiver of the present invention operates to search a range of frequencies by correlating a baseband signal corresponding to a received GPS signal with a generated frequency and a generated code at a plurality of time offsets. Address translation logic operates to group results of the correlation according to the plurality of time offsets by translating addresses received from a direct memory access (DMA) controller in order to improve the efficiency of performing a fast Fourier transform (FFT) on the results of the correlation. The transformed data produced by the FFT process are used by the GPS receiver to determine a frequency of the received GPS signal and a time offset associated with a ranging code carried in the received GPS signal.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: August 17, 2004
    Assignee: RF Micro Devices, Inc.
    Inventors: Andreas Warloe, Richard Najarian, Benjamin Imai
  • GPS receiver
    Publication number: 20040095274
    Abstract: The global positioning system (GPS) receiver of the present invention operates to search a range of frequencies by correlating a baseband signal corresponding to a received GPS signal with a generated frequency and a generated code at a plurality of time offsets. Address translation logic operates to group results of the correlation according to the plurality of time offsets by translating addresses received from a direct memory access (DMA) controller in order to improve the efficiency of performing a fast Fourier transform (FFT) on the results of the correlation. The transformed data produced by the FFT process are used by the GPS receiver to determine a frequency of the received GPS signal and a time offset associated with a ranging code carried in the received GPS signal.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Andreas Warloe, Richard Najarian, Benjamin Imai