CH616813GA3 - - Google Patents

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Publication number
CH616813GA3
CH616813GA3 CH1612177A CH1612177A CH616813GA3 CH 616813G A3 CH616813G A3 CH 616813GA3 CH 1612177 A CH1612177 A CH 1612177A CH 1612177 A CH1612177 A CH 1612177A CH 616813G A3 CH616813G A3 CH 616813GA3
Authority
CH
Switzerland
Prior art keywords
driving pulses
detecting
stepping motor
circuit
battery
Prior art date
Application number
CH1612177A
Other languages
English (en)
Other versions
CH616813B (fr
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
Publication of CH616813B publication Critical patent/CH616813B/fr
Application filed filed Critical
Priority to CH1612177A priority Critical patent/CH616813B/fr
Priority to DE2855083A priority patent/DE2855083C3/de
Priority to US05/971,811 priority patent/US4216648A/en
Priority to FR7836207A priority patent/FR2413663A1/fr
Priority to JP16459478A priority patent/JPS54100775A/ja
Priority to GB7850144A priority patent/GB2011665B/en
Publication of CH616813GA3 publication Critical patent/CH616813GA3/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply
    • 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)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)
  • Electric Clocks (AREA)
CH1612177A 1977-12-28 1977-12-28 Piece d'horlogerie electronique avec systeme de detection de fin de vie des piles. CH616813B (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1612177A CH616813B (fr) 1977-12-28 1977-12-28 Piece d'horlogerie electronique avec systeme de detection de fin de vie des piles.
DE2855083A DE2855083C3 (de) 1977-12-28 1978-12-20 Elektronisches Zeitmeßgerät mit einer Einrichtung zur Detektion des Endes der Lebensdauer der Batterien
US05/971,811 US4216648A (en) 1977-12-28 1978-12-21 System for detecting the end useful life of a battery in an electronic time-piece
FR7836207A FR2413663A1 (fr) 1977-12-28 1978-12-22 Piece d'horlogerie electronique avec systeme de detection de vie des piles
JP16459478A JPS54100775A (en) 1977-12-28 1978-12-28 Electronic watch
GB7850144A GB2011665B (en) 1977-12-28 1978-12-28 Electronic time piece comprising a system for detecting the end of the battery life

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1612177A CH616813B (fr) 1977-12-28 1977-12-28 Piece d'horlogerie electronique avec systeme de detection de fin de vie des piles.

Publications (2)

Publication Number Publication Date
CH616813B CH616813B (fr)
CH616813GA3 true CH616813GA3 (enrdf_load_stackoverflow) 1980-04-30

Family

ID=4414630

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1612177A CH616813B (fr) 1977-12-28 1977-12-28 Piece d'horlogerie electronique avec systeme de detection de fin de vie des piles.

Country Status (6)

Country Link
US (1) US4216648A (enrdf_load_stackoverflow)
JP (1) JPS54100775A (enrdf_load_stackoverflow)
CH (1) CH616813B (enrdf_load_stackoverflow)
DE (1) DE2855083C3 (enrdf_load_stackoverflow)
FR (1) FR2413663A1 (enrdf_load_stackoverflow)
GB (1) GB2011665B (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351039A (en) * 1979-01-08 1982-09-21 Jean-Claude Berney Timepiece with a detector and control circuit for a stepping motor
JPS5643575A (en) * 1979-09-18 1981-04-22 Seiko Instr & Electronics Ltd Electronic clock
CH641921B (fr) * 1980-02-19 Berney Sa Jean Claude Piece d'horlogerie avec un dispositif de controle du moteur pas a pas.
CH632383B (fr) * 1980-04-16 Ebauchesfabrik Eta Ag Piece d'horlogerie electronique.
CH646575GA3 (enrdf_load_stackoverflow) * 1981-10-02 1984-12-14
CH646576GA3 (enrdf_load_stackoverflow) * 1981-10-02 1984-12-14
JPS5872082A (ja) * 1981-10-27 1983-04-28 Citizen Watch Co Ltd 電子時計
FR2529032A1 (fr) * 1982-06-21 1983-12-23 Omega Brandt & Freres Sa Louis Procede d'alimentation d'un moteur pas a pas monophase pour piece d'horlogerie
CH660279GA3 (enrdf_load_stackoverflow) * 1985-04-12 1987-04-15
US4663576A (en) * 1985-04-30 1987-05-05 Combustion Engineering, Inc. Automatic controller for magnetic jack type control rod drive mechanism
DE3519008C1 (de) * 1985-05-25 1986-10-09 Pforzheimer Uhren-Rohwerke Porta GmbH, 7530 Pforzheim Schrittmotor-Antriebsschaltung
US4743831A (en) * 1986-09-12 1988-05-10 Troxler Electronic Laboratories, Inc. Apparatus and method for indicating remaining battery life in a battery powered device
CA1287072C (en) * 1986-10-03 1991-07-30 Larry D. Brailean Trackable arrow
US4791343A (en) * 1987-08-31 1988-12-13 Allied-Signal Inc. Stepper motor shaft position sensor
DE102004028580A1 (de) * 2004-06-15 2006-01-12 Junghans Uhren Gmbh Verfahren und Vorrichtung zur Einstellung einer Datumsanzeige bei einer Uhr, insbesondere einer Funkuhr, nach einem Batteriewechsel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5175482A (en) * 1974-12-25 1976-06-30 Seiko Instr & Electronics Denshidokeini okeru denchijumyohyojisochi
JPS5256567A (en) * 1975-11-04 1977-05-10 Seiko Instr & Electronics Ltd Battery-voltage detecting system for electronic timepiece

Also Published As

Publication number Publication date
GB2011665B (en) 1982-05-19
CH616813B (fr)
FR2413663B1 (enrdf_load_stackoverflow) 1981-07-17
DE2855083B2 (de) 1980-02-07
DE2855083C3 (de) 1980-09-25
DE2855083A1 (de) 1979-07-05
FR2413663A1 (fr) 1979-07-27
US4216648A (en) 1980-08-12
GB2011665A (en) 1979-07-11
JPS54100775A (en) 1979-08-08
JPS61951B2 (enrdf_load_stackoverflow) 1986-01-13

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Legal Events

Date Code Title Description
PL Patent ceased