JPS5345576A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS5345576A
JPS5345576A JP12014776A JP12014776A JPS5345576A JP S5345576 A JPS5345576 A JP S5345576A JP 12014776 A JP12014776 A JP 12014776A JP 12014776 A JP12014776 A JP 12014776A JP S5345576 A JPS5345576 A JP S5345576A
Authority
JP
Japan
Prior art keywords
electronic wristwatch
driving
rotor
coil
detecting
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
JP12014776A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6118151B2 (enrdf_load_stackoverflow
Inventor
Minoru Hosokawa
Kiichi Kawamura
Sakio Okazaki
Hiroshi Ishii
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP12014776A priority Critical patent/JPS5345576A/ja
Publication of JPS5345576A publication Critical patent/JPS5345576A/ja
Publication of JPS6118151B2 publication Critical patent/JPS6118151B2/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)
JP12014776A 1976-10-06 1976-10-06 Electronic wristwatch Granted JPS5345576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12014776A JPS5345576A (en) 1976-10-06 1976-10-06 Electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12014776A JPS5345576A (en) 1976-10-06 1976-10-06 Electronic wristwatch

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP23887085A Division JPS6193976A (ja) 1985-10-25 1985-10-25 電子時計

Publications (2)

Publication Number Publication Date
JPS5345576A true JPS5345576A (en) 1978-04-24
JPS6118151B2 JPS6118151B2 (enrdf_load_stackoverflow) 1986-05-10

Family

ID=14779118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12014776A Granted JPS5345576A (en) 1976-10-06 1976-10-06 Electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS5345576A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142475A (en) * 1980-02-19 1981-11-06 Berney Sa Jean Claude Watch with stepping motor controller
JPS57151485A (en) * 1981-02-12 1982-09-18 Hon Corp Folding portable bicycle
JP2009148143A (ja) * 2007-12-18 2009-07-02 Seiko Instruments Inc ステッピングモータ制御回路及びアナログ電子時計

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142475A (en) * 1980-02-19 1981-11-06 Berney Sa Jean Claude Watch with stepping motor controller
JPS57151485A (en) * 1981-02-12 1982-09-18 Hon Corp Folding portable bicycle
JP2009148143A (ja) * 2007-12-18 2009-07-02 Seiko Instruments Inc ステッピングモータ制御回路及びアナログ電子時計

Also Published As

Publication number Publication date
JPS6118151B2 (enrdf_load_stackoverflow) 1986-05-10

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