CH632124GA3 - - Google Patents

Download PDF

Info

Publication number
CH632124GA3
CH632124GA3 CH435678A CH435678A CH632124GA3 CH 632124G A3 CH632124G A3 CH 632124GA3 CH 435678 A CH435678 A CH 435678A CH 435678 A CH435678 A CH 435678A CH 632124G A3 CH632124G A3 CH 632124GA3
Authority
CH
Switzerland
Prior art keywords
stepping motor
time
cause
rotate
indicating hand
Prior art date
Application number
CH435678A
Other languages
English (en)
Other versions
CH632124B (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 CH632124B publication Critical patent/CH632124B/fr
Application filed filed Critical
Publication of CH632124GA3 publication Critical patent/CH632124GA3/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)
  • Electric Clocks (AREA)
CH435678A 1977-04-23 1978-04-21 Piece d'horlogerie electronique. CH632124B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4709577A JPS53132385A (en) 1977-04-23 1977-04-23 Electronic watch

Publications (2)

Publication Number Publication Date
CH632124B CH632124B (fr)
CH632124GA3 true CH632124GA3 (fr) 1982-09-30

Family

ID=12765617

Family Applications (1)

Application Number Title Priority Date Filing Date
CH435678A CH632124B (fr) 1977-04-23 1978-04-21 Piece d'horlogerie electronique.

Country Status (6)

Country Link
US (1) US4271496A (fr)
JP (1) JPS53132385A (fr)
CH (1) CH632124B (fr)
DE (1) DE2817596A1 (fr)
FR (1) FR2388326A1 (fr)
GB (1) GB1592897A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132382A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5921493B2 (ja) * 1978-09-12 1984-05-21 セイコーインスツルメンツ株式会社 時計の輪列負荷測定器
FR2459579A1 (fr) * 1979-06-21 1981-01-09 Suisse Horlogerie Detecteur d'avance d'un moteur pas a pas
JPS56164984A (en) * 1980-05-23 1981-12-18 Seiko Instr & Electronics Ltd Electronic watch
CH644983GA3 (fr) * 1981-03-31 1984-09-14
JP4343549B2 (ja) * 2003-02-24 2009-10-14 セイコーインスツル株式会社 ステップモータ制御装置及び電子時計
JP4236956B2 (ja) * 2003-02-24 2009-03-11 セイコーインスツル株式会社 ステップモータ制御装置及び電子時計

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830052A (en) * 1972-07-10 1974-08-20 Motorola Inc Digital power control circuit for an electric wrist watch
JPS5542356B2 (fr) * 1972-12-22 1980-10-30
JPS6024680B2 (ja) * 1973-03-07 1985-06-14 セイコーインスツルメンツ株式会社 時計用ステツプモ−タの駆動回路
JPS53145Y2 (fr) * 1973-12-14 1978-01-06
US3998043A (en) * 1973-12-26 1976-12-21 Citizen Watch Co., Ltd. Electric timepiece for displaying the operating condition thereof
US3896363A (en) * 1974-03-18 1975-07-22 Cincinnati Milacron Inc Feedback circuit for detecting the failure of a stepping motor to respond to the control circuit
JPS5627835B2 (fr) * 1974-03-27 1981-06-27
JPS5175482A (en) * 1974-12-25 1976-06-30 Seiko Instr & Electronics Denshidokeini okeru denchijumyohyojisochi
US4032827A (en) * 1976-03-15 1977-06-28 Timex Corporation Driver circuit arrangement for a stepping motor
JPS53114467A (en) * 1977-03-16 1978-10-05 Seiko Instr & Electronics Ltd Electronic watch

Also Published As

Publication number Publication date
FR2388326A1 (fr) 1978-11-17
JPS53132385A (en) 1978-11-18
CH632124B (fr)
JPS6115382B2 (fr) 1986-04-23
US4271496A (en) 1981-06-02
DE2817596A1 (de) 1978-10-26
GB1592897A (en) 1981-07-08
FR2388326B1 (fr) 1983-04-22

Similar Documents

Publication Publication Date Title
FR2388326B1 (fr)
JPS53132382A (en) Electronic watch
JPS5312669A (en) Hands reversing device of electronic watch
JPS53146040A (en) Igniter
JPS547374A (en) Step motor device for electronic watches
JPS5384782A (en) Electronic wristwatch
HK28283A (en) Improvements in or relating to electronic timepieces
JPS52146277A (en) Time correcting device of electronic watches
JPS52151065A (en) Alarm electronic watch
JPS5420315A (en) Direct current motor
JPS5310469A (en) Switch mechanism for crystal timepieces
JPS52102767A (en) Operation indicating apparatus for two-hand type electronic timepiece
JPS5422506A (en) Pulse motor for electronic watch
JPS52119267A (en) Electronic wristwatch
JPS5375976A (en) Step motor for electronic wrist watch
JPS5381267A (en) Electronic watch
JPS52156668A (en) Analogue crystal timepiece
JPS5338357A (en) Watch with hour hand correcting mechanism
JPS5291470A (en) Portable electronic clock
JPS5276968A (en) Second correcting device for electronic watches
JPS52123668A (en) Hand movement type electronic watch
JPS5280064A (en) Displaying method for battery voltages of electronic watches
JPS5330371A (en) Electronic circuit for timepiece
JPS52127268A (en) Electronic watch
JPS52120864A (en) Method of resetting electronic timepiece