Patents by Inventor Keui-Chiang Lai

Keui-Chiang Lai 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).

  • Apparatus and method for radio frequency tracking and acquisition
    Patent number: 7130329
    Abstract: A system and method for adjusting loop bandwidth in a synchronization loop of a radio receiver uses a noncoherent peak detector to determine the maximum magnitude and timing of incoming data at various code phase offsets. The maximum magnitude and timing are used in subsequent processing with the maximum magnitude value used to determine an adjustment factor. The timing information associated with the maximum signal value is used to despread the incoming signal. The despread incoming signal is subsequently scaled in accordance with the determined adjustment factor such that the input to the synchronization loop is scaled to produce the desired loop bandwidth.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: October 31, 2006
    Assignee: Qualcomm Incorporated
    Inventors: Serguei A. Glazko, Keui-Chiang Lai
  • Apparatus and method for radio frequency tracking and acquisition
    Publication number: 20040004962
    Abstract: A system and method for adjusting loop bandwidth in a synchronization loop of a radio receiver uses a noncoherent peak detector to determine the maximum magnitude and timing of incoming data at various code phase offsets. The maximum magnitude and timing are used in subsequent processing with the maximum magnitude value used to determine an adjustment factor. The timing information associated with the maximum signal value is used to despread the incoming signal. The despread incoming signal is subsequently scaled in accordance with the determined adjustment factor such that the input to the synchronization loop is scaled to produce the desired loop bandwidth.
    Type: Application
    Filed: July 8, 2002
    Publication date: January 8, 2004
    Inventors: Serguei A. Glazko, Keui-Chiang Lai