Patents by Inventor Chiayee Steve Chang

Chiayee Steve Chang 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-based positioning system for mobile GPS terminals
    Patent number: 8164516
    Abstract: The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user input requirements.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: April 24, 2012
    Assignees: CSR Technology Inc., Panasonic Corporation
    Inventors: Ikuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
  • GPS-based positioning system for mobile GPS terminals
    Patent number: 7352322
    Abstract: The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user input requirements.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: April 1, 2008
    Assignees: SiRF Technology, Inc., Matsushita Electric Works, Ltd.
    Inventors: Ikuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
  • Partial almanac collection system
    Patent number: 7239271
    Abstract: A partial almanac collection system is disclosed. The partial almanac collection system includes a global positioning system (“GPS”) module, and a controller in signal communication with the GPS module and the call processor, the controller instructing the GPS module to collect piecewise almanac data in response to a request from the call processor.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: July 3, 2007
    Assignee: SiRF Technology, Inc.
    Inventors: Hemali Vyas, Gengsheng Zhang, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
  • Partial almanac collection system
    Patent number: 7239272
    Abstract: A protocol independent interface for processing, within a mobile device, protocol aiding data received at a call processor with a Global Positioning System (“GPS”) interface, where the protocol aiding data is produced according to a Geolocation Server Station protocol is disclosed. The protocol independent interface may include a means for receiving, at the GPS interface, the protocol aiding data received at the call processor, means for converting the received protocol aiding data to interface data that is transparent to the Geolocation Server Station protocol, and means for passing the interface data to a GPS module.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: July 3, 2007
    Assignee: Sirf Technology, Inc.
    Inventors: Hemali Vyas, Gengsheng Zhang, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
  • GPS-based positioning system for mobile GPS terminals
    Patent number: 7009555
    Abstract: The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user input requirements.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: March 7, 2006
    Assignees: SIRF Technology, Inc., Matsushita Electric Works, Ltd.
    Inventors: Ikuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Gerin, Ashutosh Pande
  • GPS-based positioning system for mobile GPS terminals
    Publication number: 20020190896
    Abstract: The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user input requirements.
    Type: Application
    Filed: August 7, 2002
    Publication date: December 19, 2002
    Applicant: SiRF Technology, Inc. and Matsushita Electric Works, Ltd.
    Inventors: Ikuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
  • GPS-BASED POSITIONING SYSTEM FOR MOBILE GPS TERMINALS
    Publication number: 20020145560
    Abstract: The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user input requirements.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 10, 2002
    Applicant: SiRF Technology, Inc.
    Inventors: Ikuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
  • GPS-based positioning system for mobile GPS terminals
    Patent number: 6462708
    Abstract: The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be acquired, or user input requirements.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: October 8, 2002
    Assignees: Sirf Technology, Inc., Matsushita Electric Works, Ltd.
    Inventors: Ikuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande