发明授权
- 专利标题: Electronic timepiece
- 专利标题(中): 电子钟表
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申请号: US13615407申请日: 2012-09-13
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公开(公告)号: US08937851B2公开(公告)日: 2015-01-20
- 发明人: Mitsuaki Matsuo , Hirofumi Nagareda
- 申请人: Mitsuaki Matsuo , Hirofumi Nagareda
- 申请人地址: JP Tokyo
- 专利权人: Casio Computer Co., Ltd.
- 当前专利权人: Casio Computer Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Holtz, Holtz, Goodman & Chick PC
- 优先权: JP2011-210169 20110927
- 主分类号: G04B19/22
- IPC分类号: G04B19/22 ; G04C11/02 ; G04R20/12
摘要:
An electronic timepiece includes: a radio-wave receiving unit; a time acquiring unit that acquires time information and daylight-saving-time implementation information; a storage unit that stores predetermined information associated with a time in a preset area; and a calculation unit that calculates a current time in the preset area, wherein the predetermined information includes daylight-saving-time setting information; and when the time of switching to/from daylight saving time comes during a radio-wave reception process, the calculation unit determines whether a first or second condition is satisfied, wherein the first condition is that radio-wave reception has failed; and the second condition is that the daylight-saving-time implementation information is information provided before the time of switching; and when the first or second condition is satisfied, the calculation unit switches the time to calculate current time.
公开/授权文献
- US20130077448A1 ELECTRONIC TIMEPIECE 公开/授权日:2013-03-28