JPS5477164A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5477164A
JPS5477164A JP14464677A JP14464677A JPS5477164A JP S5477164 A JPS5477164 A JP S5477164A JP 14464677 A JP14464677 A JP 14464677A JP 14464677 A JP14464677 A JP 14464677A JP S5477164 A JPS5477164 A JP S5477164A
Authority
JP
Japan
Prior art keywords
drive pulses
width
sec
pulses
signals
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
JP14464677A
Other languages
English (en)
Other versions
JPS6115385B2 (ja
Inventor
Masaharu Shida
Jun Ueda
Akira Torisawa
Shuji Otawa
Masaaki Bandai
Katsuhiko Sato
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
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14464677A priority Critical patent/JPS5477164A/ja
Publication of JPS5477164A publication Critical patent/JPS5477164A/ja
Publication of JPS6115385B2 publication Critical patent/JPS6115385B2/ja
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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
JP14464677A 1977-12-02 1977-12-02 Electronic watch Granted JPS5477164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14464677A JPS5477164A (en) 1977-12-02 1977-12-02 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14464677A JPS5477164A (en) 1977-12-02 1977-12-02 Electronic watch

Publications (2)

Publication Number Publication Date
JPS5477164A true JPS5477164A (en) 1979-06-20
JPS6115385B2 JPS6115385B2 (ja) 1986-04-23

Family

ID=15366901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14464677A Granted JPS5477164A (en) 1977-12-02 1977-12-02 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5477164A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866089A (ja) * 1981-10-15 1983-04-20 Seikosha Co Ltd 電子時計
JPS6194598A (ja) * 1984-10-16 1986-05-13 Seiko Instr & Electronics Ltd ステツプモ−タの回転検出方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687489U (ja) * 1993-05-28 1994-12-22 株式会社イナックス 排水フランジ部構造
JP4885754B2 (ja) * 2007-02-06 2012-02-29 セイコーインスツル株式会社 ステッピングモータ制御回路及び電子時計

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866089A (ja) * 1981-10-15 1983-04-20 Seikosha Co Ltd 電子時計
JPS6194598A (ja) * 1984-10-16 1986-05-13 Seiko Instr & Electronics Ltd ステツプモ−タの回転検出方法

Also Published As

Publication number Publication date
JPS6115385B2 (ja) 1986-04-23

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