Patents by Inventor Che-i LIEN

Che-i LIEN 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).

  • Binary offset carrier (BOC) sideband processing
    Patent number: 12736684
    Abstract: A global positioning system (GPS) receiver configured to perform binary offset carrier (BOC) sideband processing. The GPS receiver includes an analog RF subsystem and a digital subsystem and software module. The analog radio frequency (RF) subsystem is configured to acquire a BOC signal from a GPS satellite and converts the BOC signal to a based-banded signal. The digital subsystem and software module is configured to generate another signal and a local replica signal of the other signal to improve code tracking loop performance of the GPS receiver.
    Type: Grant
    Filed: January 31, 2024
    Date of Patent: September 15, 2026
    Assignee: THE AEROSPACE CORPORATION
    Inventors: John M. Gevargiz, Che-i Lien, Richard T. Sharpe
  • BINARY OFFSET CARRIER (BOC) SIDEBAND PROCESSING
    Publication number: 20250244484
    Abstract: A global positioning system (GPS) receiver configured to perform binary offset carrier (BOC) sideband processing. The GPS receiver includes an analog RF subsystem and a digital subsystem and software module. The analog radio frequency (RF) subsystem is configured to acquire a BOC signal from a GPS satellite and converts the BOC signal to a based-banded signal. The digital subsystem and software module is configured to generate another signal and a local replica signal of the other signal to improve code tracking loop performance of the GPS receiver.
    Type: Application
    Filed: January 31, 2024
    Publication date: July 31, 2025
    Applicant: The Aerospace Corporation
    Inventors: John M. GEVARGIZ, Che-i LIEN, Richard T. SHARPE