Back to results
US 7,352,322 B2Granted
GPS-based positioning system for mobile GPS terminals
AssigneesSiRF Technology, Inc., Matsushita Electric Works, Ltd.
InventorsIkuo Tsujimoto, Junichi Suzuki, Chiayee Steve Chang, Lionel Jacques Garin, Ashutosh Pande
Life of this patent
Estimating the term…
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.
Claims19
A Global Positioning System (GPS)-based positioning system, comprising:
- (a) a GPS terminal, including:
- (i) a GPS section for receiving and processing a GPS signal;
- (ii) a strategy selector, external to and coupled to the GPS section, that determines a positioning strategy based upon a state of the GPS section and has a mode determinator for determining a mode of operation of the GPS section that uses positioning requirements received from the GPS section;
- and
- (iii) a communication system, coupled to the GPS section and the strategy selector, for transmitting and receiving data to and from a location aiding server, and
- (b) a location aiding server, which communicates with the communications system of the GPS terminal via a communication network including:
- (i) an aiding data generation section for forming location aiding date;
- and
- (ii) a communication control section for transmitting date to and receiving data from the GPS terminal.
6 more elements
Dependencies are inferred from the claim text.