CH628488GA3 - - Google Patents
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- Publication number
- CH628488GA3 CH628488GA3 CH1490877A CH1490877A CH628488GA3 CH 628488G A3 CH628488G A3 CH 628488GA3 CH 1490877 A CH1490877 A CH 1490877A CH 1490877 A CH1490877 A CH 1490877A CH 628488G A3 CH628488G A3 CH 628488GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- rotor
- magnetically
- coil
- stator
- pulse
- Prior art date
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
- G04G—ELECTRONIC TIME-PIECES
- G04G5/00—Setting, i.e. correcting or changing, the time-indication
- G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Adornments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14693976A JPS5370876A (en) | 1976-12-07 | 1976-12-07 | Electronic wristwatch |
Publications (2)
Publication Number | Publication Date |
---|---|
CH628488B CH628488B (fr) | |
CH628488GA3 true CH628488GA3 (es) | 1982-03-15 |
Family
ID=15418978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1490877A CH628488B (fr) | 1976-12-07 | 1977-12-06 | Montre electronique, notamment montre-bracelet electronique. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4205262A (es) |
JP (1) | JPS5370876A (es) |
CH (1) | CH628488B (es) |
DE (1) | DE2752880C2 (es) |
FR (1) | FR2373817A1 (es) |
GB (1) | GB1571260A (es) |
HK (1) | HK51182A (es) |
SG (1) | SG44382G (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53132382A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
FR2450527A1 (fr) * | 1979-03-01 | 1980-09-26 | Suisse Horlogerie | Moteur pas a pas non reversible |
FR2461399A1 (fr) * | 1979-07-09 | 1981-01-30 | Suisse Horlogerie | Detecteur de position d'un moteur pas a pas |
US4375049A (en) * | 1980-09-24 | 1983-02-22 | Timex Corporation | Stepping motor drive circuit for bi-directional rotation |
US4912692A (en) * | 1988-09-29 | 1990-03-27 | Timex Corporation | High rate, bidirectional drive for a bipole stepping motor watch |
DE4090927B4 (de) * | 1989-06-01 | 2006-09-21 | Papst Licensing Gmbh & Co. Kg | Motor, insbesondere kollektorloser Gleichstrommotor |
JP3981669B2 (ja) * | 2004-03-02 | 2007-09-26 | セイコーエプソン株式会社 | モータ及びモータの駆動システム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPS5239111A (en) * | 1975-09-25 | 1977-03-26 | Citizen Watch Co Ltd | Pulse motor for electronic clock |
JPS5240712A (en) * | 1975-09-27 | 1977-03-29 | Citizen Watch Co Ltd | Pulse motor for electronic clocks |
JPS5280063A (en) * | 1975-12-26 | 1977-07-05 | Citizen Watch Co Ltd | Reversible pulse motor system and watch |
US4055785A (en) * | 1976-01-12 | 1977-10-25 | Fumio Nakajima | Stepping motor for electronic timepiece |
-
1976
- 1976-12-07 JP JP14693976A patent/JPS5370876A/ja active Pending
-
1977
- 1977-11-26 DE DE2752880A patent/DE2752880C2/de not_active Expired
- 1977-12-05 FR FR7736510A patent/FR2373817A1/fr not_active Withdrawn
- 1977-12-06 GB GB50731/77A patent/GB1571260A/en not_active Expired
- 1977-12-06 CH CH1490877A patent/CH628488B/fr unknown
- 1977-12-07 US US05/858,440 patent/US4205262A/en not_active Expired - Lifetime
-
1982
- 1982-09-11 SG SG44382A patent/SG44382G/en unknown
- 1982-11-25 HK HK511/82A patent/HK51182A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SG44382G (en) | 1983-02-25 |
US4205262A (en) | 1980-05-27 |
DE2752880C2 (de) | 1985-05-02 |
FR2373817A1 (fr) | 1978-07-07 |
GB1571260A (en) | 1980-07-09 |
JPS5370876A (en) | 1978-06-23 |
CH628488B (fr) | |
HK51182A (en) | 1982-12-03 |
DE2752880A1 (de) | 1978-06-08 |
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