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US 7,009,555 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 Gerin, Ashutosh Pande
Life of this patent
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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.
Claims44
A GPS terminal, comprising:
- a GPS section for receiving and processing a GPS signal;
- 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
- a communication system, coupled to the GPS section and the strategy selector, capable of exchanging data with a location aiding server.
1 more element
A GPS terminal comprising:
- a GPS section for receiving and processing a GPS signal;
- 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
- a communications section, coupled to the GPS section and the strategy selector, for transmitting at least GPS information from the GPS section.
1 more element
Dependencies are inferred from the claim text.