GB2035625B - Electroni timepiece - Google Patents

Electroni timepiece

Info

Publication number
GB2035625B
GB2035625B GB7940285A GB7940285A GB2035625B GB 2035625 B GB2035625 B GB 2035625B GB 7940285 A GB7940285 A GB 7940285A GB 7940285 A GB7940285 A GB 7940285A GB 2035625 B GB2035625 B GB 2035625B
Authority
GB
United Kingdom
Prior art keywords
electroni
timepiece
electroni timepiece
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
GB7940285A
Other versions
GB2035625A (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 GB2035625A publication Critical patent/GB2035625A/en
Application granted granted Critical
Publication of GB2035625B publication Critical patent/GB2035625B/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)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
GB7940285A 1978-11-22 1979-11-21 Electroni timepiece Expired GB2035625B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14479378A JPS5570773A (en) 1978-11-22 1978-11-22 Electronic watch

Publications (2)

Publication Number Publication Date
GB2035625A GB2035625A (en) 1980-06-18
GB2035625B true GB2035625B (en) 1983-01-06

Family

ID=15370575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7940285A Expired GB2035625B (en) 1978-11-22 1979-11-21 Electroni timepiece

Country Status (4)

Country Link
JP (1) JPS5570773A (en)
DE (1) DE2946363A1 (en)
FR (1) FR2442543A1 (en)
GB (1) GB2035625B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164984A (en) * 1980-05-23 1981-12-18 Seiko Instr & Electronics Ltd Electronic watch
GB2134290B (en) * 1982-12-16 1986-02-26 Suwa Seikosha Kk An analog electronic timepiece
GB2156172B (en) * 1984-03-19 1988-11-02 Westinghouse Electric Corp Stepper motor torque control apparatus and method
CN203151354U (en) * 2012-11-05 2013-08-21 武汉晨龙电子有限公司 Mating structure of stator sheet and magnetic steel of low-starting-voltage low-power stepping motor of watch movement

Also Published As

Publication number Publication date
FR2442543A1 (en) 1980-06-20
JPS5570773A (en) 1980-05-28
DE2946363A1 (en) 1980-06-04
GB2035625A (en) 1980-06-18

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19930902

PE20 Patent expired after termination of 20 years

Effective date: 19991120