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US08164516B2 GPS-based positioning system for mobile GPS terminals 有权
GPS定位系统,用于移动GPS终端

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.
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