FR2445653A1 - Dispositif de detection pour une montre electronique - Google Patents

Dispositif de detection pour une montre electronique

Info

Publication number
FR2445653A1
FR2445653A1 FR7931591A FR7931591A FR2445653A1 FR 2445653 A1 FR2445653 A1 FR 2445653A1 FR 7931591 A FR7931591 A FR 7931591A FR 7931591 A FR7931591 A FR 7931591A FR 2445653 A1 FR2445653 A1 FR 2445653A1
Authority
FR
France
Prior art keywords
driving
magnetic field
detection device
rotation
detection
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7931591A
Other languages
English (en)
Other versions
FR2445653B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 JP16217078A external-priority patent/JPS5587076A/ja
Priority claimed from JP16151078A external-priority patent/JPS5587977A/ja
Priority claimed from JP16150978A external-priority patent/JPS5587976A/ja
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of FR2445653A1 publication Critical patent/FR2445653A1/fr
Application granted granted Critical
Publication of FR2445653B1 publication Critical patent/FR2445653B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/02—Arrangements for controlling dynamo-electric motors rotating step by step specially adapted for single-phase or bi-pole stepper motors, e.g. watch-motors, clock-motors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
  • Electric Clocks (AREA)

Abstract

L'invention concerne l'horlogerie. Une montre électronique comporte en particulier un circuit d'attaque et de détection 93 qui détermine les caractéristiques des impulsions d'attaque qui sont appliquées à un moteur pas-à-pas 94. Le circuit 93 détecte la présence d'un champ magnétique alternatif externe à partir de la tension qui est induite dans la bobine du moteur. La largeur de l'impulsion d'attaque est augmentée en cas de détection de l'existence d'un champ magnétique, pour assurer à la fois une bonne immunité aux champs magnétiques, et une faible consommation dans les conditions normales. Application aux montres électroniques.
FR7931591A 1978-12-25 1979-12-24 Dispositif de detection pour une montre electronique Granted FR2445653A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP16217078A JPS5587076A (en) 1978-12-25 1978-12-25 Electronic watch
JP16151078A JPS5587977A (en) 1978-12-26 1978-12-26 Device for detecting electronic watch
JP16150978A JPS5587976A (en) 1978-12-26 1978-12-26 Device for detecting electronic watch

Publications (2)

Publication Number Publication Date
FR2445653A1 true FR2445653A1 (fr) 1980-07-25
FR2445653B1 FR2445653B1 (fr) 1984-09-07

Family

ID=27321867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931591A Granted FR2445653A1 (fr) 1978-12-25 1979-12-24 Dispositif de detection pour une montre electronique

Country Status (5)

Country Link
US (1) US4321521A (fr)
CH (1) CH639235B (fr)
DE (1) DE2951947A1 (fr)
FR (1) FR2445653A1 (fr)
GB (1) GB2038512A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH671135GA3 (en) * 1987-12-11 1989-08-15 Control method for stepper motor - using magnetic field detector allowing compensation for ambient magnetic field by adjusting drive pulses

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106397A (en) * 1980-12-18 1982-07-02 Seiko Instr & Electronics Ltd Driving device for stepping motor
GB2134290B (en) * 1982-12-16 1986-02-26 Suwa Seikosha Kk An analog electronic timepiece
JPH0681551B2 (ja) * 1984-10-16 1994-10-12 セイコ−電子工業株式会社 ステップモ−タの回転検出方法
JPS6258189A (ja) * 1985-09-09 1987-03-13 Seiko Instr & Electronics Ltd アナログ電子時計
JP2624176B2 (ja) * 1994-05-20 1997-06-25 日本電気株式会社 電子時計及び時刻補正方法
JP3541601B2 (ja) * 1997-02-07 2004-07-14 セイコーエプソン株式会社 ステッピングモーターの制御装置、その制御方法および計時装置
WO1998041906A1 (fr) * 1997-03-17 1998-09-24 Citizen Watch Co., Ltd. Montre electronique a generateur
JPH11127595A (ja) * 1997-08-11 1999-05-11 Seiko Epson Corp 電子機器
JP3514237B2 (ja) * 1998-09-10 2004-03-31 セイコーエプソン株式会社 パルスモータの駆動装置、パルスモータの駆動方法、計時装置及び計時装置の制御方法
JP3395786B1 (ja) * 2002-02-26 2003-04-14 セイコーエプソン株式会社 電子機器、電子機器の受信制御方法および電子機器の受信制御プログラム
TW525796U (en) * 2002-09-10 2003-03-21 Yuan-Sung Weng Wrist-watch with radio detection function of illegal recording
JP2011027510A (ja) * 2009-07-23 2011-02-10 Seiko Instruments Inc クロノグラフ時計
JP2011169750A (ja) * 2010-02-18 2011-09-01 Seiko Instruments Inc 電子時計およびその処理方法とプログラム
US9529330B2 (en) 2010-09-09 2016-12-27 Citizen Holdings Co., Ltd. Wrist watch oscillating step motor with sweep motion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745052A1 (de) * 1976-10-06 1978-04-20 Suwa Seikosha Kk Elektronische uhr
FR2388327A1 (fr) * 1977-04-23 1978-11-17 Seiko Instr & Electronics Montre electronique a consommation reduite
FR2410843A1 (fr) * 1977-12-02 1979-06-29 Seiko Instr & Electronics Montre electronique
FR2426999A1 (fr) * 1978-05-26 1979-12-21 Seiko Instr & Electronics Dispositif de detection de champ magnetique externe pour une montre electronique
FR2431722A1 (fr) * 1978-07-19 1980-02-15 Seiko Instr & Electronics Montre electronique comportant un dispositif de detection d'un champ magnetique externe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756010A (en) * 1970-08-11 1973-09-04 Matsushita Electric Works Ltd Magnetic-induction clock
US3963946A (en) * 1975-02-21 1976-06-15 Robertshaw Controls Company Driver circuit for step motor
US4081736A (en) * 1976-07-09 1978-03-28 The Superior Electric Company Open loop motor stabilization method and circuit
US4158287A (en) * 1976-08-12 1979-06-19 Citizen Watch Company Limited Driver circuit for electro-mechanical transducer
CH635973B (fr) * 1977-01-19 Suwa Seikosha Kk Circuit de commande pour un transducteur electromecanique d'une montre, notamment d'une montre-bracelet electronique.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745052A1 (de) * 1976-10-06 1978-04-20 Suwa Seikosha Kk Elektronische uhr
FR2388327A1 (fr) * 1977-04-23 1978-11-17 Seiko Instr & Electronics Montre electronique a consommation reduite
FR2410843A1 (fr) * 1977-12-02 1979-06-29 Seiko Instr & Electronics Montre electronique
FR2426999A1 (fr) * 1978-05-26 1979-12-21 Seiko Instr & Electronics Dispositif de detection de champ magnetique externe pour une montre electronique
FR2431722A1 (fr) * 1978-07-19 1980-02-15 Seiko Instr & Electronics Montre electronique comportant un dispositif de detection d'un champ magnetique externe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH671135GA3 (en) * 1987-12-11 1989-08-15 Control method for stepper motor - using magnetic field detector allowing compensation for ambient magnetic field by adjusting drive pulses

Also Published As

Publication number Publication date
FR2445653B1 (fr) 1984-09-07
CH639235B (fr)
CH639235GA3 (fr) 1983-11-15
US4321521A (en) 1982-03-23
GB2038512A (en) 1980-07-23
DE2951947A1 (de) 1980-07-10

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Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right