发明申请
US20080025156A1 Time Correction Device, Timepiece Having a Time Correction Device, and Time Correction Method
有权
时间校正装置,具有时间校正装置的时计和时间校正方法
- 专利标题: Time Correction Device, Timepiece Having a Time Correction Device, and Time Correction Method
- 专利标题(中): 时间校正装置,具有时间校正装置的时计和时间校正方法
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申请号: US11777889申请日: 2007-07-13
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公开(公告)号: US20080025156A1公开(公告)日: 2008-01-31
- 发明人: Osamu Urano , Teruhiko Fujisawa , Katsuyuki Honda , Jun Matsuzaki
- 申请人: Osamu Urano , Teruhiko Fujisawa , Katsuyuki Honda , Jun Matsuzaki
- 申请人地址: JP Tokyo
- 专利权人: SEIKO EPSON CORPORATION
- 当前专利权人: SEIKO EPSON CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2006-208593 20060731
- 主分类号: G04G5/00
- IPC分类号: G04G5/00
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.
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