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GB2067795B - Stepping motor driven electronic timepieces - Google Patents

Stepping motor driven electronic timepieces

Info

Publication number
GB2067795B
GB2067795B GB8037118A GB8037118A GB2067795B GB 2067795 B GB2067795 B GB 2067795B GB 8037118 A GB8037118 A GB 8037118A GB 8037118 A GB8037118 A GB 8037118A GB 2067795 B GB2067795 B GB 2067795B
Authority
GB
United Kingdom
Prior art keywords
stepping motor
motor driven
driven electronic
electronic timepieces
timepieces
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.)
Expired
Application number
GB8037118A
Other versions
GB2067795A (en
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
Publication of GB2067795A publication Critical patent/GB2067795A/en
Application granted granted Critical
Publication of GB2067795B publication Critical patent/GB2067795B/en
Expired 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
GB8037118A 1980-01-17 1980-11-19 Stepping motor driven electronic timepieces Expired GB2067795B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP394580A JPS56101584A (en) 1980-01-17 1980-01-17 Electronic timepiece

Publications (2)

Publication Number Publication Date
GB2067795A GB2067795A (en) 1981-07-30
GB2067795B true GB2067795B (en) 1983-07-06

Family

ID=11571251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8037118A Expired GB2067795B (en) 1980-01-17 1980-11-19 Stepping motor driven electronic timepieces

Country Status (5)

Country Link
JP (1) JPS56101584A (en)
GB (1) GB2067795B (en)
HK (1) HK64186A (en)
MY (1) MY8700571A (en)
SG (1) SG26785G (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910875A (en) * 1982-07-09 1984-01-20 Seiko Epson Corp Electronic timepiece
CH648723GA3 (en) * 1982-09-10 1985-04-15
JPH0729622B2 (en) * 1988-06-11 1995-04-05 マツダ株式会社 Body assembly method
JP3508444B2 (en) * 1997-02-07 2004-03-22 セイコーエプソン株式会社 Control device for stepping motor, control method thereof, and timing device
EP0982846B1 (en) * 1998-08-25 2011-10-19 ETA SA Manufacture Horlogère Suisse Process and device for controlling a stepper motor

Also Published As

Publication number Publication date
GB2067795A (en) 1981-07-30
HK64186A (en) 1986-09-05
JPS56101584A (en) 1981-08-14
SG26785G (en) 1991-01-04
MY8700571A (en) 1987-12-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921119