发明名称 System and method for providing aiding information to a satellite positioning system receiver over short-range wireless connections
摘要 Systems and methods for obtaining corrected time information in a GPS-enabled device connected to a mobile handset via a short-range wireless network, such as a Bluetooth™ Piconet™. The mobile handset includes a GPS time and a network clock synchronized with a network clock in a short-range wireless network interface in the GPS-enabled device. The GPS-enabled device may send requests for time information to the mobile handset. The mobile handset receives the request and latches the network clock time and the GPS time. The captured network clock time and GPS times are sent to the GPS-enabled device in response to the request. The GPS-enabled device subtracts the captured network clock time from its own network clock time and adds the difference to the captured GPS time to obtain a corrected GPS time.
申请公布号 US7724612(B2) 申请公布日期 2010.05.25
申请号 US20070738359 申请日期 2007.04.20
申请人 SIRF TECHNOLOGY, INC. 发明人 AZIM SYED KHALID
分类号 G01S19/06;G04C11/02;G01S1/00;G01S19/25;H04B7/00;H04B7/19 主分类号 G01S19/06
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