| 摘要 |
A device ( 100 ) has a port ( 108 ), a first SPS receiver ( 104 ), and a processor ( 106 ) coupled to the first SPS receiver and the port. The processor is programmed to detect ( 102 ) a second SPS receiver ( 107 ) at the port, deactivate ( 206 ) the first SPS receiver, and determine ( 208 ) a location of the device according to signals received by the second SPS receiver from GPS satellites.
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