发明授权
- 专利标题: Electronic timepiece with temperature compensation
- 专利标题(中): 电子时钟带温度补偿
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申请号: US394198申请日: 1982-07-01
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公开(公告)号: US4453834A公开(公告)日: 1984-06-12
- 发明人: Fuminori Suzuki , Makoto Yoshida , Shigeru Morokawa
- 申请人: Fuminori Suzuki , Makoto Yoshida , Shigeru Morokawa
- 申请人地址: JPX Tokyo
- 专利权人: Citizen Watch Company Limited
- 当前专利权人: Citizen Watch Company Limited
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX56-104228 19810703; JPX56-105903 19810707
- 主分类号: G04F5/06
- IPC分类号: G04F5/06 ; G04G3/02 ; G04B17/12
摘要:
An electronic timepiece having a quartz crystal oscillator circuit as a timebase signal source is provided with a temperature compensation system to compensate timebase signal frequency deviations with temperature, all components of the system being incorporated in the timepiece IC chip. The system is based on a temperature-sensitive voltage stabilizer circuit whose output voltage is current-converted to control the frequency of a temperature-insensitive oscillator circuit. Date generated on the basis of the latter oscillator frequency is applied to compensate the timebase signal frequency, by a capacitor switching technique.
公开/授权文献
- US5519071A Dental cement 公开/授权日:1996-05-21