发明名称 GPS FUNCTION MOUNTED MOBILE COMMUNICATION TERMINAL EQUIPMENT
摘要 PROBLEM TO BE SOLVED: To achieve accurate frequency correction as compared with an AFC function that mobile communication terminal equipment has originally in the mobile communication terminal equipment. SOLUTION: The mobile communication terminal equipment 700 comprises a frequency correction unit 100, a GPS module 500, and a central processing unit 600 for connecting the frequency connection unit and the GPS module. The frequency correction unit 100 counts an IF signal obtained by allowing a signal from a base station to be subjected to frequency conversion, the central processing unit 600 converts the count value of the IF signal when the frequency correction unit 100 is in a lockup state to an actual count value offset, and the GPS module 500 counts a signal from an oscillator 105 and corrects the actual count value by the actual count value offset. COPYRIGHT: (C)2004,JPO
申请公布号 JP2003329761(A) 申请公布日期 2003.11.19
申请号 JP20020133581 申请日期 2002.05.09
申请人 NEC CORP 发明人 KITATANI KENICHI
分类号 G01S19/19;G01S19/23;H03J1/00;H04M1/00;H04M1/725;H04W64/00;(IPC1-7):G01S5/14;H04Q7/34 主分类号 G01S19/19
代理机构 代理人
主权项
地址