CH664252GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH664252GA3 CH664252GA3 CH294785A CH294785A CH664252GA3 CH 664252G A3 CH664252G A3 CH 664252GA3 CH 294785 A CH294785 A CH 294785A CH 294785 A CH294785 A CH 294785A CH 664252G A3 CH664252G A3 CH 664252GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- rate adjustment
- signal
- timepiece
- signals
- step width
- Prior art date
Links
- 239000013078 crystal Substances 0.000 abstract 3
- 230000032683 aging Effects 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14001784A JPS6140586A (ja) | 1984-07-06 | 1984-07-06 | 電子時計 |
JP2983785A JPS61189484A (ja) | 1985-02-18 | 1985-02-18 | 電子時計 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH664252GA3 true CH664252GA3 (fr) | 1988-02-29 |
Family
ID=26368094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH294785A CH664252GA3 (fr) | 1984-07-06 | 1985-07-08 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4730286A (fr) |
CH (1) | CH664252GA3 (fr) |
GB (1) | GB2163575B (fr) |
HK (1) | HK78989A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10160874A (ja) * | 1996-12-03 | 1998-06-19 | Nec Corp | 誤差自動修正時計 |
US6086244A (en) * | 1997-03-20 | 2000-07-11 | Stmicroelectronics, Inc. | Low power, cost effective, temperature compensated, real time clock and method of clocking systems |
EP1793488A1 (fr) * | 2005-11-30 | 2007-06-06 | Microdul AG | Appareil d'accordage fin d'un oscillateur à quartz |
GB0721540D0 (en) * | 2007-11-02 | 2007-12-12 | Eosemi Ltd | Precision oscillator |
CN102118159B (zh) * | 2009-12-30 | 2013-06-05 | 意法半导体研发(深圳)有限公司 | 产生时钟信号的电路和方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1194949A (en) * | 1968-01-31 | 1970-06-17 | Citizen Watch Co Ltd | Method of Temperature Compensating Oscillation Circuit for Timepiece and Device Therefor |
GB2063603B (en) * | 1979-10-05 | 1983-10-05 | Seikosha Kk | Frequency controlled oscillator circuit |
US4427302A (en) * | 1980-06-06 | 1984-01-24 | Citizen Watch Company Limited | Timekeeping signal source for an electronic timepiece |
US4473303A (en) * | 1982-02-19 | 1984-09-25 | Citizen Watch Company Limited | Electronic timepiece |
-
1985
- 1985-06-28 GB GB08516482A patent/GB2163575B/en not_active Expired
- 1985-07-01 US US06/750,803 patent/US4730286A/en not_active Expired - Lifetime
- 1985-07-08 CH CH294785A patent/CH664252GA3/fr not_active IP Right Cessation
-
1989
- 1989-10-05 HK HK789/89A patent/HK78989A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4730286A (en) | 1988-03-08 |
GB2163575A (en) | 1986-02-26 |
HK78989A (en) | 1989-10-13 |
GB2163575B (en) | 1987-09-09 |
GB8516482D0 (en) | 1985-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |