发明名称 |
Time adjustment device, timekeeping device with a time adjustment device, and a time adjustment method |
摘要 |
A time adjustment device having a satellite signal reception unit that receives satellite signals containing satellite time information transmitted from a positioning information satellite; a time information generating unit that generates time information; and a time information adjustment unit that adjusts the time information based on the satellite time information received by the satellite signal reception unit. The satellite signal reception unit includes a positioning information satellite selection unit that selects the positioning information satellite from which the satellite time information is received; and the positioning information satellite selection unit selects a positioning information satellite based on variation in the transmission frequency of the satellite signal transmitted from the positioning information satellite.
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申请公布号 |
US7778117(B2) |
申请公布日期 |
2010.08.17 |
申请号 |
US20080171104 |
申请日期 |
2008.07.10 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
MATSUZAKI JUN |
分类号 |
G04C11/02;G01S5/14;G01S19/01;G01S19/14;G01S19/34;G04G5/00 |
主分类号 |
G04C11/02 |
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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