发明授权
- 专利标题: Electric timepiece
- 专利标题(中): 电表
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申请号: US517231申请日: 1974-10-23
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公开(公告)号: US3978650A公开(公告)日: 1976-09-07
- 发明人: Yukio Hashimoto , Shigeru Morokawa
- 申请人: Yukio Hashimoto , Shigeru Morokawa
- 申请人地址: JA Tokyo
- 专利权人: Citizen Watch Co., Ltd.
- 当前专利权人: Citizen Watch Co., Ltd.
- 当前专利权人地址: JA Tokyo
- 优先权: JA48-119605 19731024
- 主分类号: G04G3/02
- IPC分类号: G04G3/02 ; G04F5/06 ; G04G3/00 ; H03B5/32 ; H03L1/02 ; G04C3/00 ; H03F1/00
摘要:
An electronic timepiece which includes a time reference signal generator, which generates a signal which is used to count time, and is compensated in its frequency in order to have the predetermined frequency value regardless of variations in ambient temperature.
公开/授权文献
- US5607367A Linear derailleur 公开/授权日:1997-03-04
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