发明名称 |
Mobile communication apparatus and position detection method thereof |
摘要 |
When position measurement accuracy of the present position which the base station distance and position measurement part measures from radio waves coming from base stations is not good, a GPS distance and position measurement part measures the present position from radio waves coming from GPS satellites. When position measurement accuracy of the present position obtained by the GPS distance and position measurement part is not good, a position measurement accuracy analysis part compounds the present position obtained by the base station distance and position measurement part with the present position obtained by the GPS distance and position measurement part, and calculates a new position within a range of overlap between a position measurement error of the present position obtained by the base station distance and position measurement part and a position measurement error of the present position obtained by the GPS distance and position measurement part. <IMAGE> |
申请公布号 |
EP1251362(A3) |
申请公布日期 |
2003.07.02 |
申请号 |
EP20020252738 |
申请日期 |
2002.04.18 |
申请人 |
PIONEER CORPORATION |
发明人 |
SHIODA, TAKEHIKO;NOHARA, MANABU |
分类号 |
G01S19/07;G01S19/12;G01S19/22;G01S19/34;G01S19/42;G01S19/48;H04W64/00 |
主分类号 |
G01S19/07 |
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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