CH658765GA3 - - Google Patents

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Publication number
CH658765GA3
CH658765GA3 CH168484A CH168484A CH658765GA3 CH 658765G A3 CH658765G A3 CH 658765GA3 CH 168484 A CH168484 A CH 168484A CH 168484 A CH168484 A CH 168484A CH 658765G A3 CH658765G A3 CH 658765GA3
Authority
CH
Switzerland
Prior art keywords
integrated circuit
chronograph
gearing
quartz resonator
coupled
Prior art date
Application number
CH168484A
Other languages
French (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
Application filed filed Critical
Priority to CH168484A priority Critical patent/CH658765GA3/fr
Priority to FR8504347A priority patent/FR2562279B1/en
Priority to US06/715,524 priority patent/US4666311A/en
Priority to GB08507698A priority patent/GB2157030B/en
Priority to IT8512462A priority patent/IT1186849B/en
Priority to DE19853511009 priority patent/DE3511009A1/en
Priority to JP60069257A priority patent/JPS60228984A/en
Publication of CH658765GA3 publication Critical patent/CH658765GA3/fr
Priority to SG943/87A priority patent/SG94387G/en
Priority to HK67/88A priority patent/HK6788A/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F8/00—Apparatus for measuring unknown time intervals by electromechanical means
    • 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
    • G04C3/146—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor incorporating two or more stepping motors or rotors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A chronograph watch comprises a first motor controlled by a quartz resonator coupled to a first simple integrated circuit. This motor drives, through gearing, the time indicating members of the watch. A second motor controlled by a second quartz resonator coupled to a second simple integrated circuit, identical to said first integrated circuit, can be operated at a higher frequency when a switch, which is operable manually by means of a pushbutton and interposed between electrical ground and a terminal of the second integrated circuit, is open. The second motor drives, through further gearing, a chronograph hand coupled to a minute counter and to an hour counter. Thus the chronograph indicates fractions of seconds without the timepiece requiring expensive circuits or having an excessive electrical power consumption.
CH168484A 1984-04-03 1984-04-03 CH658765GA3 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CH168484A CH658765GA3 (en) 1984-04-03 1984-04-03
FR8504347A FR2562279B1 (en) 1984-04-03 1985-03-20 ELECTRONIC TIMEPIECE WITH ANALOGUE DISPLAY
US06/715,524 US4666311A (en) 1984-04-03 1985-03-25 Electronic timepiece with analogue display
GB08507698A GB2157030B (en) 1984-04-03 1985-03-25 Electronic timepiece with analogue display
IT8512462A IT1186849B (en) 1984-04-03 1985-03-27 ELECTRONIC CLOCK WITH ANALOG PRESENTATION OF DIFFERENT DATA
DE19853511009 DE3511009A1 (en) 1984-04-03 1985-03-27 ELECTRONIC CLOCK WITH ANALOG DISPLAY
JP60069257A JPS60228984A (en) 1984-04-03 1985-04-03 Member of analog display type electronic watch
SG943/87A SG94387G (en) 1984-04-03 1987-10-29 Electronic timepiece with analogue display
HK67/88A HK6788A (en) 1984-04-03 1988-01-21 Electronic timepiece with analogue display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH168484A CH658765GA3 (en) 1984-04-03 1984-04-03

Publications (1)

Publication Number Publication Date
CH658765GA3 true CH658765GA3 (en) 1986-12-15

Family

ID=4216175

Family Applications (1)

Application Number Title Priority Date Filing Date
CH168484A CH658765GA3 (en) 1984-04-03 1984-04-03

Country Status (9)

Country Link
US (1) US4666311A (en)
JP (1) JPS60228984A (en)
CH (1) CH658765GA3 (en)
DE (1) DE3511009A1 (en)
FR (1) FR2562279B1 (en)
GB (1) GB2157030B (en)
HK (1) HK6788A (en)
IT (1) IT1186849B (en)
SG (1) SG94387G (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6173085A (en) * 1984-09-18 1986-04-15 Citizen Watch Co Ltd Electronic timepiece with chronograph
GB2166570B (en) * 1984-09-26 1987-11-18 Citizen Watch Co Ltd Electronic timepiece with a chronograph system
EP0328845A1 (en) * 1988-02-18 1989-08-23 Roventa-Henex SA Chronographic timepiece
CH664666GA3 (en) * 1986-02-10 1988-03-31 Electronic watch with independent modular stop-watch facility - has crystal oscillator and auxiliary seconds hand drive circuitry arranged in annular space around main movement
CH667771GA3 (en) * 1986-05-29 1988-11-15
JP2755386B2 (en) * 1988-04-12 1998-05-20 シチズン時計株式会社 Pointer-type electronic clock
CH689956A5 (en) * 1995-11-28 2000-02-15 Mtm Manufacture Et Technologie Piece portable electronic watchmaking seconds hand at the center, including wristwatch.
ES2147143B1 (en) * 1998-09-22 2001-03-01 Gonzalez Manuel Rocher TIME INTERVAL MEASURING HAND AND ITS OPERATING PROCEDURE.
FR2823346B1 (en) * 2001-04-09 2004-01-16 Pilou Company Ltd PENDULUM FOR CHESS GAME
US7230884B2 (en) * 2003-01-03 2007-06-12 The Sapling Company, Inc. Clock diagnostics
US9829863B1 (en) 2016-05-13 2017-11-28 Charles Richard Bird Digital-to-digital correction unit for analog clock display
TWI746663B (en) * 2016-10-19 2021-11-21 日商精工電子有限公司 Timepiece and control method of timepiece
JP6917176B2 (en) * 2017-04-07 2021-08-11 セイコーインスツル株式会社 Clocks, motor drives, clock control methods, and motor control methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048217A1 (en) * 1980-09-12 1982-03-24 Compagnie des Montres Longines, Francillon S.A. Electronic timepiece
DE3031884A1 (en) * 1980-08-23 1982-04-01 Braun Ag, 6000 Frankfurt Master and slave clock arrangement - uses integrated circuits connecting master to slave circuit with input for alarm functions

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1349023A (en) * 1971-07-16 1974-03-27 Omega Brandt & Freres Sa Louis Adjustable frequency pulse generator
FR2203108B3 (en) * 1972-10-13 1976-09-03 Grand Cap Cie Sa
US3945194A (en) * 1973-12-15 1976-03-23 Itt Industries, Inc. Electronic quartz clock with integrated circuits
CH621027B5 (en) * 1975-12-23 1981-01-15 Ebauches Sa
JPS5312255A (en) * 1976-07-21 1978-02-03 Seiko Epson Corp Electronic clock
CH617057B (en) * 1977-09-27 Berney Sa Jean Claude ELECTRONIC WATCH PART.
JPS54136875A (en) * 1978-04-17 1979-10-24 Seiko Epson Corp Analog electronic watch
US4211066A (en) * 1978-09-29 1980-07-08 Kabushiki Kaisha Daini Seikosha Stop watch
CH636493B (en) * 1980-01-21 Ebauches Sa CHRONOGRAPH WATCH.
CH644238B (en) * 1980-08-18 Complications Sa ELECTRONIC WATCH WITH ANALOGUE DISPLAY.
CH634713B (en) * 1981-07-09 Umberto Maglioli ELECTRONIC WATCH PART.
GB2110846B (en) * 1981-10-27 1984-11-21 Citizen Watch Co Ltd Electronic timepiece
GB2124803B (en) * 1982-06-07 1985-12-11 Suwa Seikosha Kk Improvements in or relating to electronic analog timepieces
JPS5940290A (en) * 1982-08-31 1984-03-05 Seiko Epson Corp analog multifunction clock
US4540297A (en) * 1983-02-01 1985-09-10 Brother Kogyo Kabushiki Kaisha Paper holding, feeding and inserting apparatus for a printer using different kinds of sheets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031884A1 (en) * 1980-08-23 1982-04-01 Braun Ag, 6000 Frankfurt Master and slave clock arrangement - uses integrated circuits connecting master to slave circuit with input for alarm functions
EP0048217A1 (en) * 1980-09-12 1982-03-24 Compagnie des Montres Longines, Francillon S.A. Electronic timepiece

Also Published As

Publication number Publication date
IT1186849B (en) 1987-12-16
FR2562279A1 (en) 1985-10-04
GB2157030A (en) 1985-10-16
GB8507698D0 (en) 1985-05-01
IT8512462A0 (en) 1985-03-27
SG94387G (en) 1988-05-06
HK6788A (en) 1988-01-29
GB2157030B (en) 1987-06-03
JPS60228984A (en) 1985-11-14
US4666311A (en) 1987-05-19
DE3511009A1 (en) 1985-10-03
FR2562279B1 (en) 1987-06-12

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