FR2388324A1 - Montre electronique analogique a faible consommation - Google Patents

Montre electronique analogique a faible consommation

Info

Publication number
FR2388324A1
FR2388324A1 FR7811527A FR7811527A FR2388324A1 FR 2388324 A1 FR2388324 A1 FR 2388324A1 FR 7811527 A FR7811527 A FR 7811527A FR 7811527 A FR7811527 A FR 7811527A FR 2388324 A1 FR2388324 A1 FR 2388324A1
Authority
FR
France
Prior art keywords
rotation
battery
electronic watch
motor
detecting circuit
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
Application number
FR7811527A
Other languages
English (en)
Other versions
FR2388324B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of FR2388324A1 publication Critical patent/FR2388324A1/fr
Application granted granted Critical
Publication of FR2388324B1 publication Critical patent/FR2388324B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • 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)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
  • Adornments (AREA)

Abstract

L'invention concerne les montres électroniques. Une montre électronique comprend, entre autres, un circuit d'attaque 30 branché à la bobine 14 d'un moteur pas à pas, un circuit de détection 32 qui détecte la rotation ou l'absence de rotation du moteur sous l'effet d'une impulsion d'attaque, et un circuit de détection de la tension de la pile, 31. Lorsque le moteur ne tourne pas sous l'effet d'une impulsion d'attaque normale, il reçoit une impulsion d'attaque de correction, mais ce mode de fonctionnement cesse dès que la tension de la pile tombe au-dessous d'un seuil prédéterminé. Application aux montres électroniques à affichage analogique.
FR7811527A 1977-04-23 1978-04-19 Montre electronique analogique a faible consommation Granted FR2388324A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4709677A JPS53132386A (en) 1977-04-23 1977-04-23 Electronic watch

Publications (2)

Publication Number Publication Date
FR2388324A1 true FR2388324A1 (fr) 1978-11-17
FR2388324B1 FR2388324B1 (fr) 1984-07-20

Family

ID=12765645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811527A Granted FR2388324A1 (fr) 1977-04-23 1978-04-19 Montre electronique analogique a faible consommation

Country Status (6)

Country Link
US (1) US4312058A (fr)
JP (1) JPS53132386A (fr)
CH (1) CH635720B (fr)
DE (1) DE2817624C2 (fr)
FR (1) FR2388324A1 (fr)
GB (1) GB1592895A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388330A1 (fr) * 1977-04-23 1978-11-17 Seiko Instr & Electronics Montre electronique
FR2480956A1 (fr) * 1980-04-16 1981-10-23 Ebauchesfabrik Eta Ag Piece d'horlogerie electronique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643575A (en) * 1979-09-18 1981-04-22 Seiko Instr & Electronics Ltd Electronic clock
DE3214543A1 (de) * 1981-04-23 1982-11-11 Kabushiki Kaisha Suwa Seikosha, Tokyo Elektronische analoguhr
CH660279GA3 (fr) * 1985-04-12 1987-04-15
JPS62237384A (ja) * 1986-04-08 1987-10-17 Seiko Instr & Electronics Ltd 充電機能付きアナログ電子時計
FR2748583B1 (fr) * 1996-05-07 1998-06-26 Asulab Sa Stabilisation d'un circuit electronique de regulation du mouvement mecanique d'une piece d'horlogerie
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2200675A1 (fr) * 1972-09-20 1974-04-19 Rech Matiere Micromoteurs
US3812670A (en) * 1971-09-25 1974-05-28 Citizen Watch Co Ltd Converter drive circuit in an electronic timepiece
US3855781A (en) * 1972-12-22 1974-12-24 Suwa Seikosha Kk Step motor mechanism for electronic timepiece
FR2256460A1 (fr) * 1973-12-26 1975-07-25 Citizen Watch Co Ltd
US4014164A (en) * 1974-03-27 1977-03-29 Kabushiki Kaisha Suwa Seikosha Electronic timepiece including battery monitoring arrangement
JPS52110665A (en) * 1976-03-15 1977-09-16 Seiko Instr & Electronics Ltd Circuit for electronic clock
JPS52141268A (en) * 1976-05-19 1977-11-25 Seiko Epson Corp Electronic clock
FR2384289A1 (fr) * 1977-03-16 1978-10-13 Seiko Instr & Electronics Montre electronique a faible consommation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
JPS5175482A (en) * 1974-12-25 1976-06-30 Seiko Instr & Electronics Denshidokeini okeru denchijumyohyojisochi
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812670A (en) * 1971-09-25 1974-05-28 Citizen Watch Co Ltd Converter drive circuit in an electronic timepiece
FR2200675A1 (fr) * 1972-09-20 1974-04-19 Rech Matiere Micromoteurs
US3855781A (en) * 1972-12-22 1974-12-24 Suwa Seikosha Kk Step motor mechanism for electronic timepiece
FR2256460A1 (fr) * 1973-12-26 1975-07-25 Citizen Watch Co Ltd
US4014164A (en) * 1974-03-27 1977-03-29 Kabushiki Kaisha Suwa Seikosha Electronic timepiece including battery monitoring arrangement
JPS52110665A (en) * 1976-03-15 1977-09-16 Seiko Instr & Electronics Ltd Circuit for electronic clock
JPS52141268A (en) * 1976-05-19 1977-11-25 Seiko Epson Corp Electronic clock
FR2384289A1 (fr) * 1977-03-16 1978-10-13 Seiko Instr & Electronics Montre electronique a faible consommation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ABJP/77 *
ABJP/78 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388330A1 (fr) * 1977-04-23 1978-11-17 Seiko Instr & Electronics Montre electronique
FR2480956A1 (fr) * 1980-04-16 1981-10-23 Ebauchesfabrik Eta Ag Piece d'horlogerie electronique

Also Published As

Publication number Publication date
US4312058A (en) 1982-01-19
FR2388324B1 (fr) 1984-07-20
GB1592895A (en) 1981-07-08
DE2817624A1 (de) 1978-10-26
JPS6120820B2 (fr) 1986-05-23
CH635720B (fr)
DE2817624C2 (de) 1986-10-09
CH635720GA3 (fr) 1983-04-29
JPS53132386A (en) 1978-11-18

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