HK78889A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
HK78889A
HK78889A HK788/89A HK78889A HK78889A HK 78889 A HK78889 A HK 78889A HK 788/89 A HK788/89 A HK 788/89A HK 78889 A HK78889 A HK 78889A HK 78889 A HK78889 A HK 78889A
Authority
HK
Hong Kong
Prior art keywords
pace
temperature value
slope
compensation data
circuit
Prior art date
Application number
HK788/89A
Other languages
English (en)
Inventor
Tatsuo Morlya
Hitomi Alzawa
Kuniharu Natori
Kazumi Kamoi
Hiroshi Yabe
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP16704884A external-priority patent/JPS6145986A/ja
Priority claimed from JP59168992A external-priority patent/JPH0631731B2/ja
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of HK78889A publication Critical patent/HK78889A/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
HK788/89A 1984-08-09 1989-10-05 Electronic timepiece HK78889A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16704884A JPS6145986A (ja) 1984-08-09 1984-08-09 高精度電子時計
JP59168992A JPH0631731B2 (ja) 1984-08-13 1984-08-13 温度補償機能付時計装置

Publications (1)

Publication Number Publication Date
HK78889A true HK78889A (en) 1989-10-13

Family

ID=26491207

Family Applications (2)

Application Number Title Priority Date Filing Date
HK788/89A HK78889A (en) 1984-08-09 1989-10-05 Electronic timepiece
HK810/89A HK81089A (en) 1984-08-09 1989-10-12 Electronic timepiece

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK810/89A HK81089A (en) 1984-08-09 1989-10-12 Electronic timepiece

Country Status (5)

Country Link
US (1) US4761771A (pt)
CH (2) CH666785GA3 (pt)
GB (2) GB2162974B (pt)
HK (2) HK78889A (pt)
SG (1) SG46089G (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202950B (en) * 1987-03-17 1990-09-12 Citizen Watch Co Ltd Sensor signal processor
US5253229A (en) * 1988-04-06 1993-10-12 Seiko Epson Corporation Electronic timepiece including integrated circuitry
JPH0729513Y2 (ja) * 1988-04-06 1995-07-05 セイコーエプソン株式会社 電子時計用回路
US5255247A (en) * 1988-04-06 1993-10-19 Seiko Epson Corporation Electronic timepiece including integrated circuitry
FR2726705B1 (fr) * 1994-11-04 1996-12-20 Asulab Sa Generateur de frequence a haute stabilite
US6086244A (en) * 1997-03-20 2000-07-11 Stmicroelectronics, Inc. Low power, cost effective, temperature compensated, real time clock and method of clocking systems
JP3558040B2 (ja) * 1999-03-30 2004-08-25 セイコーエプソン株式会社 電子機器、電子機器の外部調整装置、電子機器の調整方法
US20090129208A1 (en) * 2009-01-28 2009-05-21 Weiss Kenneth P Apparatus, system and method for keeping time
JP6328136B2 (ja) * 2012-12-21 2018-05-23 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 温度補償したクロノメータ回路
EP3168695B1 (fr) 2015-11-13 2021-03-10 ETA SA Manufacture Horlogère Suisse Procédé de test de la marche d'une montre à quartz
JP6658112B2 (ja) 2016-03-04 2020-03-04 セイコーエプソン株式会社 温度補償機能付き時計
CN114442464B (zh) 2018-06-04 2023-06-09 精工爱普生株式会社 电子控制式机械钟表以及电子控制式机械钟表的控制方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568093A (en) * 1968-01-31 1971-03-02 Citizen Watch Co Ltd Temperature compensated oscillator using temperature controlled continual switching of frequency determining impedance
US3719838A (en) * 1971-08-02 1973-03-06 Bulova Watch Co Inc Temperature compensating digital system for electromechanical resonators
CH616297B (de) * 1974-09-16 Centre Electron Horloger Garde-temps compense en fonction d'au moins un parametre physique d'environnement.
JPS5430074A (en) * 1977-08-10 1979-03-06 Seiko Epson Corp Time measuring system
JPS6039193B2 (ja) * 1977-10-18 1985-09-04 セイコーエプソン株式会社 電子時計
JPS54105580A (en) * 1978-02-07 1979-08-18 Seiko Epson Corp Crystal oscillation type wristwatch
FR2431794A1 (fr) * 1978-07-18 1980-02-15 Ebauches Sa Source de frequence compensee en temperature
JPS5619482A (en) * 1979-07-26 1981-02-24 Citizen Watch Co Ltd Electronic timepiece equipped with temperature compensating circuit
CH626500B (de) * 1980-01-10 Suisse Horlogerie Oszillator mit digitaler temperaturkompensation.
CH625670B (de) * 1980-01-10 Suisse Horlogerie Oszillator mit digitaler temperaturkompensation.
US4443116A (en) * 1981-01-09 1984-04-17 Citizen Watch Company Limited Electronic timepiece
JPS57117184A (en) * 1981-01-13 1982-07-21 Citizen Watch Co Ltd Non-volatile memory circuit for portable electronic device
US4453834A (en) * 1981-07-03 1984-06-12 Citizen Watch Company Limited Electronic timepiece with temperature compensation
CH650122GA3 (pt) * 1981-12-17 1985-07-15
US4473303A (en) * 1982-02-19 1984-09-25 Citizen Watch Company Limited Electronic timepiece
JPS58223778A (ja) * 1982-06-23 1983-12-26 Seiko Instr & Electronics Ltd 温度補償機能付き電子時計
US4513259A (en) * 1982-12-23 1985-04-23 Rockwell International Corporation Closed loop temperature compensated frequency reference
FR2548848A1 (fr) * 1983-07-06 1985-01-11 Thomson Csf Generateur de frequence compense en temperature

Also Published As

Publication number Publication date
GB2190218A (en) 1987-11-11
GB8519756D0 (en) 1985-09-11
CH666785GA3 (pt) 1988-08-31
CH673198B5 (pt) 1990-08-31
HK81089A (en) 1989-10-20
GB2162974A (en) 1986-02-12
GB2162974B (en) 1988-04-27
GB2190218B (en) 1988-04-27
SG46089G (en) 1990-01-26
US4761771A (en) 1988-08-02
GB8710556D0 (en) 1987-06-10
CH673198GA3 (pt) 1990-02-28

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20050805