发明申请
- 专利标题： Positioning system, position information transmitter, communication terminal, and control method of the positioning system
- 专利标题（中）： 定位系统，位置信息发送器，通信终端以及定位系统的控制方法
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申请号： US12379714申请日： 2009-02-27
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公开(公告)号： US20090256742A1公开(公告)日： 2009-10-15
- 发明人: Takamasa Kawaguchi , Tomoichi Ebata , Yutaka Shimogaki , Hitoshi Ogasawara
- 申请人： Takamasa Kawaguchi , Tomoichi Ebata , Yutaka Shimogaki , Hitoshi Ogasawara
- 优先权： JP2008-102715 20080410
- 主分类号： G01S1/00
- IPC分类号： G01S1/00
摘要：
In a positioning system comprising a position information transmitter that transmits a position information signal containing position information indicative of a position as a signal compatible with a satellite positioning signal transmitted from an artificial satellite and a communication terminal that when receiving the satellite positioning signal, finds a current position of the communication terminal by finding a position of the artificial satellite and that when receiving the position information signal, finds a current position of the communication terminal based on the position information, the position information transmitter transmits the position information signal containing a boundary flag that determines which of the satellite positioning signal or the position information signal each of correlators of the communication terminal is to receive, and the communication terminal sets which of the satellite positioning signal or the position information signal each of the correlators is to receive based on the boundary flag.
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