FR2388328A1 - - Google Patents
Info
- Publication number
- FR2388328A1 FR2388328A1 FR7812045A FR7812045A FR2388328A1 FR 2388328 A1 FR2388328 A1 FR 2388328A1 FR 7812045 A FR7812045 A FR 7812045A FR 7812045 A FR7812045 A FR 7812045A FR 2388328 A1 FR2388328 A1 FR 2388328A1
- Authority
- FR
- France
- Prior art keywords
- pulse
- stepping motor
- circuit
- rotation
- drive
- 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.)
- Granted
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)
- Adornments (AREA)
Abstract
L'invention concerne un mouvement d'horlogerie électronique. Il comporte un circuit oscillateur, un circuit diviseur, un circuit de combinaison d'impulsions et un circuit de commande qui attaque un moteur pas à pas. Un circuit de détection détermine la rotation ou l'arrêt du rotor de manière à modifier la durée d'impulsion appliquée au moteur afin de réduire la consommation d'énergie. L'invention s'applique notamment à une montre-bracelet.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4709477A JPS53132384A (en) | 1977-04-23 | 1977-04-23 | Electronic watch |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2388328A1 true FR2388328A1 (fr) | 1978-11-17 |
FR2388328B1 FR2388328B1 (fr) | 1983-10-21 |
Family
ID=12765589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7812045A Expired FR2388328B1 (fr) | 1977-04-23 | 1978-04-24 |
Country Status (8)
Country | Link |
---|---|
US (1) | US4272837A (fr) |
JP (1) | JPS53132384A (fr) |
CH (1) | CH628201B (fr) |
DE (1) | DE2817656A1 (fr) |
FR (1) | FR2388328B1 (fr) |
GB (1) | GB1592896A (fr) |
HK (1) | HK18584A (fr) |
SG (1) | SG64583G (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2388330A1 (fr) * | 1977-04-23 | 1978-11-17 | Seiko Instr & Electronics | Montre electronique |
EP0342821A2 (fr) * | 1988-05-07 | 1989-11-23 | Seiko Epson Corporation | Circuit de compensation pour montres électroniques |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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. | |
JPS5619473A (en) * | 1979-07-27 | 1981-02-24 | Citizen Watch Co Ltd | Electronic timepiece |
JPS5643575A (en) * | 1979-09-18 | 1981-04-22 | Seiko Instr & Electronics Ltd | Electronic clock |
US4791343A (en) * | 1987-08-31 | 1988-12-13 | Allied-Signal Inc. | Stepper motor shaft position sensor |
JP3248304B2 (ja) * | 1993-07-07 | 2002-01-21 | 松下電器産業株式会社 | Dac出力値算出回路 |
US7606116B2 (en) * | 2004-06-04 | 2009-10-20 | Seiko Instruments Inc. | Analogue electronic clock and motor control circuit |
JP2010145106A (ja) * | 2008-12-16 | 2010-07-01 | Seiko Instruments Inc | ステッピングモータ制御回路及びアナログ電子時計 |
JP5363269B2 (ja) * | 2008-12-25 | 2013-12-11 | セイコーインスツル株式会社 | ステッピングモータ制御回路及びアナログ電子時計 |
JP2011158434A (ja) * | 2010-02-03 | 2011-08-18 | Seiko Instruments Inc | ステッピングモータ制御回路及びアナログ電子時計 |
JP7242306B2 (ja) * | 2019-01-11 | 2023-03-20 | セイコーインスツル株式会社 | 時計及び時計用モータ制御方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2220919A1 (fr) * | 1973-03-07 | 1974-10-04 | Seiko Instr & Electronics | |
US3855781A (en) * | 1972-12-22 | 1974-12-24 | Suwa Seikosha Kk | Step motor mechanism for electronic timepiece |
FR2265213A1 (fr) * | 1974-03-18 | 1975-10-17 | Cincinnati Milacron Inc | |
FR2280125A1 (fr) * | 1974-04-24 | 1976-02-20 | Suwa Seikosha Kk | Circuit de detection de la tension de la pile pour mouvement d'horlogerie electronique |
JPS5210508A (en) * | 1975-07-15 | 1977-01-26 | Inoue Japax Res Inc | Step motor |
JPS5213609A (en) * | 1975-07-24 | 1977-02-02 | Seiko Instr & Electronics Ltd | Circuit to decide the rotation of the step motor for a clock |
DE2745052A1 (de) * | 1976-10-06 | 1978-04-20 | Suwa Seikosha Kk | Elektronische uhr |
FR2384289A1 (fr) * | 1977-03-16 | 1978-10-13 | Seiko Instr & Electronics | Montre electronique a faible consommation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010433A (fr) * | 1973-06-04 | 1975-02-03 | ||
JPS5292560A (en) * | 1976-01-29 | 1977-08-04 | Seiko Instr & Electronics Ltd | Switch box drive pulse width control circuit for electronic clocks |
US4129981A (en) * | 1976-02-06 | 1978-12-19 | Citizen Watch Company Limited | Electronic timepiece |
US4032827A (en) * | 1976-03-15 | 1977-06-28 | Timex Corporation | Driver circuit arrangement for a stepping motor |
JPS5370873A (en) * | 1976-12-07 | 1978-06-23 | Seiko Epson Corp | Electronic wristwatch |
-
1977
- 1977-04-23 JP JP4709477A patent/JPS53132384A/ja active Granted
-
1978
- 1978-04-19 GB GB15439/78A patent/GB1592896A/en not_active Expired
- 1978-04-20 US US05/898,400 patent/US4272837A/en not_active Expired - Lifetime
- 1978-04-21 DE DE19782817656 patent/DE2817656A1/de active Granted
- 1978-04-24 FR FR7812045A patent/FR2388328B1/fr not_active Expired
- 1978-04-24 CH CH447178A patent/CH628201B/fr unknown
-
1983
- 1983-11-01 SG SG645/83A patent/SG64583G/en unknown
-
1984
- 1984-03-01 HK HK185/84A patent/HK18584A/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855781A (en) * | 1972-12-22 | 1974-12-24 | Suwa Seikosha Kk | Step motor mechanism for electronic timepiece |
FR2220919A1 (fr) * | 1973-03-07 | 1974-10-04 | Seiko Instr & Electronics | |
FR2265213A1 (fr) * | 1974-03-18 | 1975-10-17 | Cincinnati Milacron Inc | |
FR2280125A1 (fr) * | 1974-04-24 | 1976-02-20 | Suwa Seikosha Kk | Circuit de detection de la tension de la pile pour mouvement d'horlogerie electronique |
JPS5210508A (en) * | 1975-07-15 | 1977-01-26 | Inoue Japax Res Inc | Step motor |
JPS5213609A (en) * | 1975-07-24 | 1977-02-02 | Seiko Instr & Electronics Ltd | Circuit to decide the rotation of the step motor for a clock |
DE2745052A1 (de) * | 1976-10-06 | 1978-04-20 | Suwa Seikosha Kk | Elektronische uhr |
FR2384289A1 (fr) * | 1977-03-16 | 1978-10-13 | Seiko Instr & Electronics | Montre electronique a faible consommation |
Non-Patent Citations (1)
Title |
---|
ABJP/77 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2388330A1 (fr) * | 1977-04-23 | 1978-11-17 | Seiko Instr & Electronics | Montre electronique |
EP0342821A2 (fr) * | 1988-05-07 | 1989-11-23 | Seiko Epson Corporation | Circuit de compensation pour montres électroniques |
EP0342821A3 (fr) * | 1988-05-07 | 1991-08-28 | Seiko Epson Corporation | Circuit de compensation pour montres électroniques |
Also Published As
Publication number | Publication date |
---|---|
DE2817656C2 (fr) | 1987-01-29 |
FR2388328B1 (fr) | 1983-10-21 |
GB1592896A (en) | 1981-07-08 |
SG64583G (en) | 1984-07-27 |
US4272837A (en) | 1981-06-09 |
CH628201B (fr) | |
JPS6137588B2 (fr) | 1986-08-25 |
JPS53132384A (en) | 1978-11-18 |
CH628201GA3 (fr) | 1982-02-26 |
HK18584A (en) | 1984-03-09 |
DE2817656A1 (de) | 1978-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
D6 | Patent endorsed licences of rights |