CH644983GA3 - - Google Patents
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- Publication number
- CH644983GA3 CH644983GA3 CH216581A CH216581A CH644983GA3 CH 644983G A3 CH644983G A3 CH 644983GA3 CH 216581 A CH216581 A CH 216581A CH 216581 A CH216581 A CH 216581A CH 644983G A3 CH644983G A3 CH 644983GA3
- Authority
- CH
- Switzerland
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)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH216581A CH644983GA3 (xx) | 1981-03-31 | 1981-03-31 | |
| US06/361,997 US4456866A (en) | 1981-03-31 | 1982-03-25 | Method for slaving a stepping motor and arrangement for practising the method |
| DE8282102626T DE3272080D1 (en) | 1981-03-31 | 1982-03-29 | Method of controlling a stepping motor |
| EP82102626A EP0062273B1 (fr) | 1981-03-31 | 1982-03-29 | Procédé pour asservir un moteur pas à pas |
| CA000399806A CA1174060A (en) | 1981-03-31 | 1982-03-30 | Method for slaving a stepping motor and arrangement for practising the method |
| JP57054765A JPS57177296A (en) | 1981-03-31 | 1982-03-31 | Method of following stepping motor driven by bipolar pulse train by load applied by time piece mechanism and device for driving stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH216581A CH644983GA3 (xx) | 1981-03-31 | 1981-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH644983GA3 true CH644983GA3 (xx) | 1984-09-14 |
Family
ID=4227396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH216581A CH644983GA3 (xx) | 1981-03-31 | 1981-03-31 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4456866A (xx) |
| EP (1) | EP0062273B1 (xx) |
| JP (1) | JPS57177296A (xx) |
| CA (1) | CA1174060A (xx) |
| CH (1) | CH644983GA3 (xx) |
| DE (1) | DE3272080D1 (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH649187GA3 (xx) * | 1982-10-13 | 1985-05-15 | ||
| JPS5980147A (ja) * | 1982-10-29 | 1984-05-09 | Rhythm Watch Co Ltd | 時計用小型モ−タ |
| JPH0681551B2 (ja) * | 1984-10-16 | 1994-10-12 | セイコ−電子工業株式会社 | ステップモ−タの回転検出方法 |
| US5550795A (en) * | 1993-01-18 | 1996-08-27 | Seiko Instruments Inc. | Electronic timepiece and a method of driving a stepping motor of electronic timepiece |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158287A (en) * | 1976-08-12 | 1979-06-19 | Citizen Watch Company Limited | Driver circuit for electro-mechanical transducer |
| JPS5385467A (en) * | 1976-12-30 | 1978-07-27 | Seiko Epson Corp | Electronic wristwatch |
| JPS53132385A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS5477169A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
| CH625384B (fr) * | 1977-12-20 | Ebauches Electroniques Sa | Dispositif de detection de la non rotation de moteurs pas a pas pour piece d'horlogerie et de rattrapage des pas perdus. | |
| FR2461399A1 (fr) * | 1979-07-09 | 1981-01-30 | Suisse Horlogerie | Detecteur de position d'un moteur pas a pas |
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1981
- 1981-03-31 CH CH216581A patent/CH644983GA3/fr unknown
-
1982
- 1982-03-25 US US06/361,997 patent/US4456866A/en not_active Expired - Fee Related
- 1982-03-29 DE DE8282102626T patent/DE3272080D1/de not_active Expired
- 1982-03-29 EP EP82102626A patent/EP0062273B1/fr not_active Expired
- 1982-03-30 CA CA000399806A patent/CA1174060A/en not_active Expired
- 1982-03-31 JP JP57054765A patent/JPS57177296A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3272080D1 (en) | 1986-08-28 |
| CA1174060A (en) | 1984-09-11 |
| EP0062273A1 (fr) | 1982-10-13 |
| EP0062273B1 (fr) | 1986-07-23 |
| US4456866A (en) | 1984-06-26 |
| JPS57177296A (en) | 1982-10-30 |