FR2388327A1 - Montre electronique a consommation reduite - Google Patents
Montre electronique a consommation reduiteInfo
- Publication number
- FR2388327A1 FR2388327A1 FR7811532A FR7811532A FR2388327A1 FR 2388327 A1 FR2388327 A1 FR 2388327A1 FR 7811532 A FR7811532 A FR 7811532A FR 7811532 A FR7811532 A FR 7811532A FR 2388327 A1 FR2388327 A1 FR 2388327A1
- Authority
- FR
- France
- Prior art keywords
- motor
- driving pulses
- normal driving
- rotation
- resistance element
- 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)
Abstract
L'invention concerne les montres électroniques. Outre les éléments habituels, une montre électronique comporte un circuit de détection 56 qui est capable de détecter une absence de rotation du moteur pas à pas 55. En cas d'absence de rotation, le circuit de détection commande le circuit 53 de façon à appliquer au moteur 55 une impulsion d'attaque correspondant à une énergie supérieure, ce qui évite d avoir à respecter une marge de sécurité pour l'énergie correspondant à chaque avance du moteur pas à pas. Application aux montres électroniques à affichage analogique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4709377A JPS53136870A (en) | 1977-04-23 | 1977-04-23 | Electronic watch |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2388327A1 true FR2388327A1 (fr) | 1978-11-17 |
FR2388327B1 FR2388327B1 (fr) | 1986-02-28 |
Family
ID=12765561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7811532A Expired FR2388327B1 (fr) | 1977-04-23 | 1978-04-19 | Montre electronique a consommation reduite |
Country Status (6)
Country | Link |
---|---|
US (2) | US4209971A (fr) |
JP (1) | JPS53136870A (fr) |
CH (1) | CH635477B (fr) |
DE (1) | DE2817645A1 (fr) |
FR (1) | FR2388327B1 (fr) |
GB (1) | GB1592893A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2388330A1 (fr) * | 1977-04-23 | 1978-11-17 | Seiko Instr & Electronics | Montre electronique |
FR2445653A1 (fr) * | 1978-12-25 | 1980-07-25 | Seiko Instr & Electronics | Dispositif de detection pour une montre electronique |
FR2471077A1 (fr) * | 1979-12-06 | 1981-06-12 | Ebauches Sa | Asservissement en temps reel avec detection dynamique de rotation pour moteur pas-a-pas |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5477169A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
US4283783A (en) * | 1978-11-28 | 1981-08-11 | Citizen Watch Company Limited | Drive control system for stepping motor |
JPS55147381A (en) * | 1979-05-04 | 1980-11-17 | Seiko Instr & Electronics Ltd | Detector for electronic watch |
EP0030611B1 (fr) * | 1979-12-12 | 1985-07-03 | Braun Aktiengesellschaft | Procédé et dispositif pour commander et régler un moteur ayant un rotor à aimant permanent |
JPS5886480A (ja) * | 1981-11-19 | 1983-05-24 | Shimauchi Seiki Kk | アナログ電子時計 |
US4477196A (en) * | 1981-05-07 | 1984-10-16 | Kabushiki Kaisha Suwa Seikosha | Analog electronic timepiece |
JPS5819584A (ja) * | 1981-07-27 | 1983-02-04 | Seiko Epson Corp | アナログ電子時計のロータ位置判定方法 |
NL8203094A (nl) * | 1982-08-04 | 1984-03-01 | Philips Nv | Werkwijze voor het analyseren van de in een bekrachtigingsspoel van een stappenmotor geinduceerde spanning. |
JPS5980147A (ja) * | 1982-10-29 | 1984-05-09 | Rhythm Watch Co Ltd | 時計用小型モ−タ |
US4788527A (en) * | 1984-09-17 | 1988-11-29 | Johansson Fritz H | Apparatus and method for device control using a two conductor power line |
JP3541601B2 (ja) * | 1997-02-07 | 2004-07-14 | 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 |
JP2001258227A (ja) * | 2000-01-06 | 2001-09-21 | Seiko Epson Corp | 発電装置、それを有する計時装置および電子機器、発電装置のコギングトルク調整方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4150536A (en) * | 1976-01-28 | 1979-04-24 | Citizen Watch Company Limited | Electronic timepiece |
JPS5292560A (en) * | 1976-01-29 | 1977-08-04 | Seiko Instr & Electronics Ltd | Switch box drive pulse width control circuit for electronic clocks |
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 |
US4208886A (en) * | 1978-12-04 | 1980-06-24 | Borg-Warner Corporation | Subcooling valve for split system air conditioning apparatus with remote condensing unit |
-
1977
- 1977-04-23 JP JP4709377A patent/JPS53136870A/ja active Granted
-
1978
- 1978-03-28 GB GB11988/78A patent/GB1592893A/en not_active Expired
- 1978-04-19 FR FR7811532A patent/FR2388327B1/fr not_active Expired
- 1978-04-20 US US05/898,535 patent/US4209971A/en not_active Expired - Lifetime
- 1978-04-21 DE DE19782817645 patent/DE2817645A1/de active Granted
- 1978-04-21 CH CH435978A patent/CH635477B/fr unknown
-
1980
- 1980-03-10 US US06/128,402 patent/US4368990A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2388330A1 (fr) * | 1977-04-23 | 1978-11-17 | Seiko Instr & Electronics | Montre electronique |
FR2445653A1 (fr) * | 1978-12-25 | 1980-07-25 | Seiko Instr & Electronics | Dispositif de detection pour une montre electronique |
FR2471077A1 (fr) * | 1979-12-06 | 1981-06-12 | Ebauches Sa | Asservissement en temps reel avec detection dynamique de rotation pour moteur pas-a-pas |
Also Published As
Publication number | Publication date |
---|---|
CH635477GA3 (fr) | 1983-04-15 |
DE2817645A1 (de) | 1978-10-26 |
CH635477B (fr) | |
US4368990A (en) | 1983-01-18 |
US4209971A (en) | 1980-07-01 |
JPS629877B2 (fr) | 1987-03-03 |
FR2388327B1 (fr) | 1986-02-28 |
GB1592893A (en) | 1981-07-08 |
JPS53136870A (en) | 1978-11-29 |
DE2817645C2 (fr) | 1988-07-28 |
Similar Documents
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FR2388327A1 (fr) | Montre electronique a consommation reduite | |
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CH635721B (fr) | Montre electronique, notamment montre-bracelet electronique, a affichage analogique. | |
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GB1592897A (en) | Electronic timepieces having stepping motor-driven analogue time displays | |
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JPH0118398B2 (fr) | ||
JPS62193590U (fr) | ||
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JPS63298090A (ja) | 電子時計 | |
JPS6230597B2 (fr) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
D6 | Patent endorsed licences of rights |