GPS-BASED POSITIONING SYSTEM FOR MOBILE GPS TERMINALS
摘要
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.
申请公布号
WO02082120(A1)
申请公布日期
2002.10.17
申请号
WO2001US18373
申请日期
2001.06.06
申请人
SIRF TECHNOLOGY, INC.;MATSUSHITA ELECTRIC WORKS, LTD.