发明名称 |
METHOD OF CALCULATING MOVEMENT SPEED AND DEVICE FOR CALCULATING MOVEMENT SPEED |
摘要 |
In a baseband processing circuit unit, a reception signal type determination unit determines whether or not a reception signal in a GPS reception unit is an indirect wave. A movement speed calculation unit calculates a movement speed of the GPS reception unit using a correction coefficient of a relative speed determined in accordance with the determination of whether or not the reception signal is an indirect wave, a transmission frequency of a GPS satellite signal and a reception frequency in the GPS reception unit.
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申请公布号 |
US2013210453(A1) |
申请公布日期 |
2013.08.15 |
申请号 |
US201313758899 |
申请日期 |
2013.02.04 |
申请人 |
SEIKO EPSON CORPORATION;SEIKO EPSON CORPORATION |
发明人 |
SHIRAI TSUBASA;YAMAGATA YOSHITAKA |
分类号 |
H04W64/00 |
主分类号 |
H04W64/00 |
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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