Patents by Inventor Sung Chun Bu

Sung Chun Bu 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).

  • Correlator for tracking satellite signal
    Patent number: 8311164
    Abstract: A correlation apparatus for tracking a satellite signal includes a shifter, a multiplexer and an accumulator. The shifter generates generating a Prompt signal, a plurality of Early signals and a plurality of Late signals. The multiplexer outputs at least one of the plurality of Early signals and at least one of the plurality of Late signals. The accumulator acquires a correlation signal to tracking the satellite signal.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: November 13, 2012
    Assignee: Core Logic, Inc.
    Inventor: Sung Chun Bu
  • Tracking satellite signal
    Patent number: 8106824
    Abstract: Techniques, systems and apparatus are described for tracking a satellite signal. In one aspect, an apparatus includes a tracking module to generate a satellite-based measurement result by tracking a satellite signal received from a satellite. The tracking module includes sub-tracking modules with each sub-tracking module configured to generate the satellite-based measurement result by using a different integral time.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: January 31, 2012
    Assignee: Core Logic, Inc.
    Inventor: Sung Chun Bu
  • TRACKING SATELLITE SIGNAL
    Publication number: 20090231193
    Abstract: Techniques, systems and apparatus are described for tracking a satellite signal. In one aspect, an apparatus includes a tracking module to generate a satellite-based measurement result by tracking a satellite signal received from a satellite. The tracking module includes sub-tracking modules with each sub-tracking module configured to generate the satellite-based measurement result by using a different integral time.
    Type: Application
    Filed: February 2, 2009
    Publication date: September 17, 2009
    Applicant: CORE LOGIC, INC.
    Inventor: Sung Chun Bu
  • Corrleator for Tracking Satellite Signal
    Publication number: 20090225909
    Abstract: A correlation apparatus for tracking a satellite signal includes a shifter, a multiplexer and an accumulator. The shifter generates generating a Prompt signal, a plurality of Early signals and a plurality of Late signals. The multiplexer outputs at least one of the plurality of Early signals and at least one of the plurality of Late signals. The accumulator acquires a correlation signal to tracking the satellite signal.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 10, 2009
    Applicant: Core Logic, Inc.
    Inventor: Sung Chun Bu