CH644983GA3 - - Google Patents

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Publication number
CH644983GA3
CH644983GA3 CH216581A CH216581A CH644983GA3 CH 644983G A3 CH644983G A3 CH 644983GA3 CH 216581 A CH216581 A CH 216581A CH 216581 A CH216581 A CH 216581A CH 644983G A3 CH644983G A3 CH 644983GA3
Authority
CH
Switzerland
Application number
CH216581A
Other languages
French (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
Application filed filed Critical
Priority to CH216581A priority Critical patent/CH644983GA3/fr
Priority to US06/361,997 priority patent/US4456866A/en
Priority to EP82102626A priority patent/EP0062273B1/fr
Priority to DE8282102626T priority patent/DE3272080D1/de
Priority to CA000399806A priority patent/CA1174060A/en
Priority to JP57054765A priority patent/JPS57177296A/ja
Publication of CH644983GA3 publication Critical patent/CH644983GA3/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
CH216581A 1981-03-31 1981-03-31 CH644983GA3 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH216581A CH644983GA3 (ja) 1981-03-31 1981-03-31
US06/361,997 US4456866A (en) 1981-03-31 1982-03-25 Method for slaving a stepping motor and arrangement for practising the method
EP82102626A EP0062273B1 (fr) 1981-03-31 1982-03-29 Procédé pour asservir un moteur pas à pas
DE8282102626T DE3272080D1 (en) 1981-03-31 1982-03-29 Method of controlling a stepping motor
CA000399806A CA1174060A (en) 1981-03-31 1982-03-30 Method for slaving a stepping motor and arrangement for practising the method
JP57054765A JPS57177296A (en) 1981-03-31 1982-03-31 Method of following stepping motor driven by bipolar pulse train by load applied by time piece mechanism and device for driving stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH216581A CH644983GA3 (ja) 1981-03-31 1981-03-31

Publications (1)

Publication Number Publication Date
CH644983GA3 true CH644983GA3 (ja) 1984-09-14

Family

ID=4227396

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216581A CH644983GA3 (ja) 1981-03-31 1981-03-31

Country Status (6)

Country Link
US (1) US4456866A (ja)
EP (1) EP0062273B1 (ja)
JP (1) JPS57177296A (ja)
CA (1) CA1174060A (ja)
CH (1) CH644983GA3 (ja)
DE (1) DE3272080D1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649187GA3 (ja) * 1982-10-13 1985-05-15
JPS5980147A (ja) * 1982-10-29 1984-05-09 Rhythm Watch Co Ltd 時計用小型モ−タ
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
EP0679967B1 (en) * 1993-01-18 1998-09-30 Seiko Instruments Inc. Electronic timepiece

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158287A (en) * 1976-08-12 1979-06-19 Citizen Watch Company Limited Driver circuit for electro-mechanical transducer
JPS5385467A (en) * 1976-12-30 1978-07-27 Seiko Epson Corp Electronic wristwatch
JPS53132385A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
CH625384B (fr) * 1977-12-20 Ebauches Electroniques Sa Dispositif de detection de la non rotation de moteurs pas a pas pour piece d'horlogerie et de rattrapage des pas perdus.
FR2461399A1 (fr) * 1979-07-09 1981-01-30 Suisse Horlogerie Detecteur de position d'un moteur pas a pas

Also Published As

Publication number Publication date
US4456866A (en) 1984-06-26
JPS57177296A (en) 1982-10-30
CA1174060A (en) 1984-09-11
EP0062273A1 (fr) 1982-10-13
EP0062273B1 (fr) 1986-07-23
DE3272080D1 (en) 1986-08-28

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