发明名称 |
Time correction device, timepiece having a time correction device, and time correction method |
摘要 |
A time correction device has a reception unit that receives satellite signals transmitted from positioning information satellites orbiting the Earth; a time correction information storage unit that stores time correction information for correcting time information produced by a time information generating unit; and a time information correction unit for correcting the time information based on the time correction information. The satellite signals are transmitted by individual positioning information satellites, and contain a time-related information part denoting time-related information that is kept by each satellite, and a satellite information part denoting satellite information other than the time-related information. The time correction information is generated based on the time-related information. The reception unit receives the satellite signal during the signal period in which the time-related information part can be received, and does not receive the satellite signal during the signal period in which the satellite information part can be received. |
申请公布号 |
EP1887376(B1) |
申请公布日期 |
2009.12.02 |
申请号 |
EP20070014902 |
申请日期 |
2007.07.30 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
URANO, OSAMU;FUJISAWA, TERUHIKO;HONDA, KATSUYUKI;MATSUZAKI, JUN |
分类号 |
G01S1/00;G01S19/14;G01S19/34;G04G5/00;G04R20/00;G04R20/02 |
主分类号 |
G01S1/00 |
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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