发明名称 |
Positional information providing system, positional information providing apparatus and transmitter |
摘要 |
Positional information is provided at a place out of reach of radio wave. The process executed by a positional information providing apparatus includes the steps of: obtaining a received positioning signal; specifying an emission source of the positioning signal; obtaining, when the emission source of the positioning signal is outdoors, a navigation message included in the positioning signal; executing a process for calculating the position based on the signal; obtaining, when the emission source of the positioning signal is indoors, message data from the positioning signal; obtaining coordinate values from the data; and displaying positional information based on the coordinate values. |
申请公布号 |
US7948437(B2) |
申请公布日期 |
2011.05.24 |
申请号 |
US20070296013 |
申请日期 |
2007.04.02 |
申请人 |
GNSS TECHNOLOGIES INC. |
发明人 |
TORIMOTO HIDEYUKI;ISHII MAKOTO;ASAKO MASAHIRO;KOGURE SATOSHI |
分类号 |
G01S1/08;G01C21/00;G01S19/11;G01S19/48;G08G1/005 |
主分类号 |
G01S1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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