JPS5360267A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5360267A
JPS5360267A JP13481776A JP13481776A JPS5360267A JP S5360267 A JPS5360267 A JP S5360267A JP 13481776 A JP13481776 A JP 13481776A JP 13481776 A JP13481776 A JP 13481776A JP S5360267 A JPS5360267 A JP S5360267A
Authority
JP
Japan
Prior art keywords
driving current
electronic watch
drive
motor
watch
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.)
Pending
Application number
JP13481776A
Other languages
Japanese (ja)
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 JP13481776A priority Critical patent/JPS5360267A/en
Publication of JPS5360267A publication Critical patent/JPS5360267A/en
Pending 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)

Abstract

PURPOSE:To charge drive pulse width according to loads and drive the watch with always minimum power consumption by using a bipolar rotor type pulse motor, detecting the rotating condition of the rotor from the waveforms of motor driving current, and cutting off more than required driving current.
JP13481776A 1976-11-10 1976-11-10 Electronic watch Pending JPS5360267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13481776A JPS5360267A (en) 1976-11-10 1976-11-10 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13481776A JPS5360267A (en) 1976-11-10 1976-11-10 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5360267A true JPS5360267A (en) 1978-05-30

Family

ID=15137171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13481776A Pending JPS5360267A (en) 1976-11-10 1976-11-10 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5360267A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951225A (en) * 2012-11-20 2013-03-06 无锡常安通用金属制品有限公司 Anti-dumping retaining jiffy stand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951225A (en) * 2012-11-20 2013-03-06 无锡常安通用金属制品有限公司 Anti-dumping retaining jiffy stand

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