CH637803GA3 - - Google Patents

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Publication number
CH637803GA3
CH637803GA3 CH731579A CH731579A CH637803GA3 CH 637803G A3 CH637803G A3 CH 637803GA3 CH 731579 A CH731579 A CH 731579A CH 731579 A CH731579 A CH 731579A CH 637803G A3 CH637803G A3 CH 637803GA3
Authority
CH
Switzerland
Prior art keywords
driving
motor
pulse
pulse width
load
Prior art date
Application number
CH731579A
Other languages
English (en)
French (fr)
Other versions
CH637803B (fr
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
Publication of CH637803B publication Critical patent/CH637803B/fr
Application filed filed Critical
Publication of CH637803GA3 publication Critical patent/CH637803GA3/fr

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)
  • Force Measurement Appropriate To Specific Purposes (AREA)
CH731579A 1978-09-12 1979-08-09 Dispositif de mesure de la charge sur le rotor d'un moteur pas a pas dans une piece d'horlogerie. CH637803B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53112009A JPS5921493B2 (ja) 1978-09-12 1978-09-12 時計の輪列負荷測定器

Publications (2)

Publication Number Publication Date
CH637803B CH637803B (fr)
CH637803GA3 true CH637803GA3 (cs) 1983-08-31

Family

ID=14575672

Family Applications (1)

Application Number Title Priority Date Filing Date
CH731579A CH637803B (fr) 1978-09-12 1979-08-09 Dispositif de mesure de la charge sur le rotor d'un moteur pas a pas dans une piece d'horlogerie.

Country Status (6)

Country Link
US (1) US4315329A (cs)
JP (1) JPS5921493B2 (cs)
CH (1) CH637803B (cs)
DE (1) DE2936150C2 (cs)
FR (1) FR2436377A1 (cs)
GB (1) GB2030734B (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619473A (en) * 1979-07-27 1981-02-24 Citizen Watch Co Ltd Electronic timepiece
JPS56158978A (en) * 1980-05-13 1981-12-08 Citizen Watch Co Ltd Electronic watch
JPS56164984A (en) * 1980-05-23 1981-12-18 Seiko Instr & Electronics Ltd Electronic watch
CH639524B (fr) 1981-02-16 Longines Montres Comp D Montre multifonctionnelle.
JP3508444B2 (ja) * 1997-02-07 2004-03-22 セイコーエプソン株式会社 ステッピングモーターの制御装置、その制御方法および計時装置
JP2002365379A (ja) * 2001-06-11 2002-12-18 Seiko Instruments Inc アナログ電子時計

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542356B2 (cs) * 1972-12-22 1980-10-30
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
JPS53132385A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch

Also Published As

Publication number Publication date
CH637803B (fr)
FR2436377B1 (cs) 1984-01-27
US4315329A (en) 1982-02-09
GB2030734B (en) 1982-11-17
DE2936150C2 (de) 1985-04-25
GB2030734A (en) 1980-04-10
JPS5539017A (en) 1980-03-18
DE2936150A1 (de) 1980-03-20
JPS5921493B2 (ja) 1984-05-21
FR2436377A1 (fr) 1980-04-11

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