发明名称 Mobile communications device with GPS receiver and common clock source
摘要 A mobile communications device using a common oscillator for communication and global positioning system (GPS) functions. In one embodiment, a communications unit receives a precision carrier frequency signal from a source and generates a reference signal that is used to calibrate a common oscillator.
申请公布号 US7082292(B2) 申请公布日期 2006.07.25
申请号 US20030658185 申请日期 2003.09.09
申请人 SIRF TECHNOLOGY, INC. 发明人 UNDERBRINK PAUL A.
分类号 H04Q7/20;G01S;G01S1/00;G01S19/23;G01S19/25;G01S19/44;G01S19/46;H03J1/00;H03L7/081;H03L7/197;H04B1/26;H04B1/38;H04B1/40;H04B7/26;H04J13/00 主分类号 H04Q7/20
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