CH639235GA3 - - Google Patents

Download PDF

Info

Publication number
CH639235GA3
CH639235GA3 CH1143279A CH1143279A CH639235GA3 CH 639235G A3 CH639235G A3 CH 639235GA3 CH 1143279 A CH1143279 A CH 1143279A CH 1143279 A CH1143279 A CH 1143279A CH 639235G A3 CH639235G A3 CH 639235GA3
Authority
CH
Switzerland
Prior art keywords
driving
magnetic field
detection device
rotation
detection
Prior art date
Application number
CH1143279A
Other languages
English (en)
French (fr)
Other versions
CH639235B (fr
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
Publication of CH639235B publication Critical patent/CH639235B/fr
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 filed Critical
Publication of CH639235GA3 publication Critical patent/CH639235GA3/fr

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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
  • Electric Clocks (AREA)
CH1143279A 1978-12-25 1979-12-21 Dispositif de detection de rotation/non-rotation et de production d'impulsions correctrices, pour piece d'horlogerie electronique, notamment pour montre-bracelet electronique. CH639235B (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
CH639235B CH639235B (fr)
CH639235GA3 true CH639235GA3 (enrdf_load_stackoverflow) 1983-11-15

Family

ID=27321867

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1143279A CH639235B (fr) 1978-12-25 1979-12-21 Dispositif de detection de rotation/non-rotation et de production d'impulsions correctrices, pour piece d'horlogerie electronique, notamment pour montre-bracelet electronique.

Country Status (5)

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

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437768A (en) 1980-04-11 1984-03-20 Citizen Watch Company Limited Movement structure for an electronic timepiece
CH640999B (fr) 1980-08-25 Ebauchesfabrik Eta Ag Procede et dispositif de commande d'une moteur pas a pas de piece d'horlogerie electronique.
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
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
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
JP3881700B2 (ja) * 1997-03-17 2007-02-14 シチズン時計株式会社 発電装置付電子時計
JPH11127595A (ja) * 1997-08-11 1999-05-11 Seiko Epson Corp 電子機器
EP1032118B1 (en) * 1998-09-10 2005-11-23 Seiko Epson Corporation Stepper motor driver, method of driving stepper motor, timer, and method of controlling timer
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

Family Cites Families (10)

* 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
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
CH635973B (fr) * 1977-01-19 Suwa Seikosha Kk Circuit de commande pour un transducteur electromecanique d'une montre, notamment d'une montre-bracelet electronique.
JPS53136870A (en) * 1977-04-23 1978-11-29 Seiko Instr & Electronics Ltd Electronic watch
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
JPS54155079A (en) * 1978-05-26 1979-12-06 Seiko Instr & Electronics Ltd Magnetic field detector for electronic watch
JPS5515054A (en) * 1978-07-19 1980-02-01 Seiko Instr & Electronics Ltd Electronic watch

Also Published As

Publication number Publication date
GB2038512A (en) 1980-07-23
FR2445653B1 (enrdf_load_stackoverflow) 1984-09-07
CH639235B (fr)
US4321521A (en) 1982-03-23
DE2951947A1 (de) 1980-07-10
FR2445653A1 (fr) 1980-07-25

Similar Documents

Publication Publication Date Title
FR2445653B1 (enrdf_load_stackoverflow)
FR2388323B1 (enrdf_load_stackoverflow)
FR2238179A1 (enrdf_load_stackoverflow)
FR2431722B1 (enrdf_load_stackoverflow)
GB2101368B (en) Improvements in or relating to pulse actuated stepping motor driven electronic timepieces.
DE3276268D1 (en) Method of reducing the power consumption of a stepping motor, and device for carrying out this method
JPS53132381A (en) Electronic watch
JPS53132383A (en) Electronic watch circuit
JPS57164473A (en) Magnetic disk device
SG44382G (en) Electronic timepiece
FR2436377B1 (enrdf_load_stackoverflow)
JPS5384782A (en) Electronic wristwatch
CH635721GA3 (enrdf_load_stackoverflow)
JPS5345576A (en) Electronic wristwatch
JPS54140914A (en) Construction of motor for quartz timepiece having hands
JPS5570773A (en) Electronic watch
JPS52120866A (en) Electronic timepiece
JPS5319512A (en) Pulse width control switching drive device in d.c. motor
JPS5371869A (en) Electronic wristwatch
JPS54140913A (en) Construction of motor for quartz timepiece having hands
JPS5583871A (en) Driving system of step motor for watch
JPS526916A (en) Pulse motor for electronic clock
JPS5394981A (en) Electronic wristwatch
JPS52146818A (en) Device for restricting shaft torque variation in rotary shaft system
JPS5389913A (en) No commutator dc motor