CH635721B - Montre electronique, notamment montre-bracelet electronique, a affichage analogique. - Google Patents

Montre electronique, notamment montre-bracelet electronique, a affichage analogique.

Info

Publication number
CH635721B
CH635721B CH706378A CH706378A CH635721B CH 635721 B CH635721 B CH 635721B CH 706378 A CH706378 A CH 706378A CH 706378 A CH706378 A CH 706378A CH 635721 B CH635721 B CH 635721B
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
CH635721GA3 (en]
Inventor
Masataka Ikenishi
Joichi Miyazaki
Shozo Kushida
Hiromasa Nakanishi
Makoto Ueda
Manaharu Shida
Original Assignee
Seiko Instr & Electronics
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 of CH635721B publication Critical patent/CH635721B/fr
Application filed by Seiko Instr & Electronics filed Critical Seiko Instr & Electronics
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 true CH635721B (fr)
CH635721GA3 CH635721GA3 (en]) 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 (en])
JP (1) JPS5411771A (en])
CH (1) CH635721B (en])
GB (1) GB1590270A (en])

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 (en]) * 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 (en]) * 1973-12-24 1986-05-23 Citizen Watch Co Ltd
JPS5166473U (en]) * 1974-11-21 1976-05-26

Also Published As

Publication number Publication date
US4274150A (en) 1981-06-16
JPS5411771A (en) 1979-01-29
CH635721GA3 (en]) 1983-04-29
GB1590270A (en) 1981-05-28

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