发明名称 |
Positioning device, electronic instrument, program, and storage medium storing program |
摘要 |
<p>Signals output from two filters included in a filter section 70 and differing in passband are respectively stored in different memories included in a memory section 80, and a positioning process is performed based on the signal stored in the memory. Specifically, the signal strength of a received signal is calculated by a coherent accumulation process and an incoherent accumulation process, and a signal system used for positioning is alternatively switched to a high-sensitivity system S1 or a high-accuracy system S2 as a result of determining whether or not the signal strength is equal to or greater than a threshold value.</p> |
申请公布号 |
EP1916537(A1) |
申请公布日期 |
2008.04.30 |
申请号 |
EP20070017467 |
申请日期 |
2007.09.06 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
KIMURA, AKIRA |
分类号 |
G01S19/37;G01S1/00;G01S19/24;G01S19/29 |
主分类号 |
G01S19/37 |
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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