CH635721GA3 - - Google Patents

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Publication number
CH635721GA3
CH635721GA3 CH706378A CH706378A CH635721GA3 CH 635721G A3 CH635721G A3 CH 635721GA3 CH 706378 A CH706378 A CH 706378A CH 706378 A CH706378 A CH 706378A CH 635721G A3 CH635721G A3 CH 635721GA3
Authority
CH
Switzerland
Prior art keywords
stepping motor
circuit
motor rotor
resetting
drive
Prior art date
Application number
CH706378A
Other languages
English (en)
French (fr)
Other versions
CH635721B (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 CH635721B publication Critical patent/CH635721B/fr
Application filed filed Critical
Publication of CH635721GA3 publication Critical patent/CH635721GA3/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
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00—Electrically-actuated devices for setting the time-indicating means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00—Electrically-actuated devices for setting the time-indicating means
    • G04C9/04—Electrically-actuated devices for setting the time-indicating means by blocking the driving means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
CH706378A 1977-06-28 1978-06-28 Montre electronique, notamment montre-bracelet electronique, a affichage analogique. CH635721B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7731477A JPS5411771A (en) 1977-06-28 1977-06-28 Electronic watch

Publications (2)

Publication Number Publication Date
CH635721B CH635721B (fr)
CH635721GA3 true CH635721GA3 (it) 1983-04-29

Family

ID=13630449

Family Applications (1)

Application Number Title Priority Date Filing Date
CH706378A CH635721B (fr) 1977-06-28 1978-06-28 Montre electronique, notamment montre-bracelet electronique, a affichage analogique.

Country Status (4)

Country Link
US (1) US4274150A (it)
JP (1) JPS5411771A (it)
CH (1) CH635721B (it)
GB (1) GB1590270A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461399A1 (fr) * 1979-07-09 1981-01-30 Suisse Horlogerie Detecteur de position d'un moteur pas a pas
JPS57136184A (en) * 1981-02-17 1982-08-23 Seiko Epson Corp Analogue electronic watch
JPS5967489A (ja) * 1982-10-07 1984-04-17 Seiko Instr & Electronics Ltd 電子時計
JPH0328396Y2 (it) * 1985-01-29 1991-06-18
JP2011117768A (ja) * 2009-12-01 2011-06-16 Seiko Instruments Inc クロノグラフ時計
US9973182B2 (en) * 2016-09-14 2018-05-15 Qualcomm Incorporated Re-timing based clock generation and residual sideband (RSB) enhancement circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022013A (en) * 1972-03-02 1977-05-10 Kabushiki Kaisha Suwa Seikosha Regulating device for electric timepieces
US3967442A (en) * 1973-02-01 1976-07-06 Berney Jean Claude Electric watch having an electromechanical movement including a correction mechanism for small errors
GB1454624A (en) * 1973-08-30 1976-11-03 Suwa Seikosha Kk Electric timepiece
JPS6120817B2 (it) * 1973-12-24 1986-05-23 Citizen Watch Co Ltd
JPS5166473U (it) * 1974-11-21 1976-05-26

Also Published As

Publication number Publication date
CH635721B (fr)
GB1590270A (en) 1981-05-28
JPS5411771A (en) 1979-01-29
US4274150A (en) 1981-06-16

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