CH665081GA3 - - Google Patents

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Publication number
CH665081GA3
CH665081GA3 CH440885A CH440885A CH665081GA3 CH 665081G A3 CH665081G A3 CH 665081GA3 CH 440885 A CH440885 A CH 440885A CH 440885 A CH440885 A CH 440885A CH 665081G A3 CH665081G A3 CH 665081GA3
Authority
CH
Switzerland
Prior art keywords
motor
circuitry
signal
control signals
issues control
Prior art date
Application number
CH440885A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4275572&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CH665081G(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Priority to CH440885A priority Critical patent/CH665081GA3/fr
Priority to DE8686113708T priority patent/DE3665783D1/en
Priority to EP86113708A priority patent/EP0221363B1/en
Priority to JP61239451A priority patent/JPS6293686A/en
Priority to US06/917,134 priority patent/US4744067A/en
Publication of CH665081GA3 publication Critical patent/CH665081GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/12—Arrangements for reducing power consumption during storage
    • 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

Abstract

An analog electronic watch comprising electronic circuitry is described, a first motor for driving hours and minutes hands, a second motor for driving a seconds hand, and a photoelectric sensor connected to the circuitry is described. The sensor reacts to strong ambient light by producing a first signal. In response to this signal the circuitry issues control signals to the two motors to activate them. If the light fades, the sensor produces a second signal and the circuitry then only issues control signals to the first motor. Stopping the second motor, when the light becomes too dim to read the time, saves energy. A memory circuit enables the seconds hand to be synchronized with the minutes hand whenever the ambient light becomes sufficiently strong to warrant activation of the second motor.
CH440885A 1985-10-11 1985-10-11 CH665081GA3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH440885A CH665081GA3 (en) 1985-10-11 1985-10-11
DE8686113708T DE3665783D1 (en) 1985-10-11 1986-10-03 Analogous electronic watch
EP86113708A EP0221363B1 (en) 1985-10-11 1986-10-03 Analogous electronic watch
JP61239451A JPS6293686A (en) 1985-10-11 1986-10-09 Analog electronic clock
US06/917,134 US4744067A (en) 1985-10-11 1986-10-09 Analog electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH440885A CH665081GA3 (en) 1985-10-11 1985-10-11

Publications (1)

Publication Number Publication Date
CH665081GA3 true CH665081GA3 (en) 1988-04-29

Family

ID=4275572

Family Applications (1)

Application Number Title Priority Date Filing Date
CH440885A CH665081GA3 (en) 1985-10-11 1985-10-11

Country Status (5)

Country Link
US (1) US4744067A (en)
EP (1) EP0221363B1 (en)
JP (1) JPS6293686A (en)
CH (1) CH665081GA3 (en)
DE (1) DE3665783D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600515C1 (en) * 1986-01-10 1993-05-13 Fraunhofer Ges Forschung Electronic clock
DE3941301C2 (en) * 1989-12-14 1994-03-31 Berndt Botond Clock
JP2564739B2 (en) * 1992-09-08 1996-12-18 株式会社精工舎 clock
JP3313215B2 (en) * 1993-12-10 2002-08-12 セイコーインスツルメンツ株式会社 Radio-controlled electronic clock
JPH11218587A (en) * 1997-11-25 1999-08-10 Seiko Instruments Inc Electronic timepiece with thermoelectric element
JP2900154B1 (en) * 1998-02-12 1999-06-02 セイコーインスツルメンツ株式会社 Electronic clock with auto calendar
JP3551861B2 (en) * 1998-12-11 2004-08-11 セイコーエプソン株式会社 Timing device and control method thereof
WO2001079940A1 (en) * 2000-04-12 2001-10-25 Seiko Instruments Inc. Analog electronic timepiece with posture sensor
CN103475281B (en) * 2013-09-02 2016-04-27 徐州工业职业技术学院 A kind of double-motor synchronous control device based on PLC

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1419489A (en) * 1971-12-14 1975-12-31 Martin J M B Clocks and watches
FR2279184A1 (en) * 1974-07-19 1976-02-13 Ici Ltd Electrically operated device control - periodically interrupts power supply to at least part of device
FR2331828A1 (en) * 1975-11-11 1977-06-10 Seiko Instr & Electronics ELECTRONIC WATCH
GB2037025A (en) * 1978-11-06 1980-07-02 Seiko Instr & Electronics Analog electronic timepiece
EP0048217A1 (en) * 1980-09-12 1982-03-24 Compagnie des Montres Longines, Francillon S.A. Electronic timepiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211579A (en) * 1981-06-23 1982-12-25 Citizen Watch Co Ltd Hand display type electronic watch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1419489A (en) * 1971-12-14 1975-12-31 Martin J M B Clocks and watches
FR2279184A1 (en) * 1974-07-19 1976-02-13 Ici Ltd Electrically operated device control - periodically interrupts power supply to at least part of device
FR2331828A1 (en) * 1975-11-11 1977-06-10 Seiko Instr & Electronics ELECTRONIC WATCH
GB2037025A (en) * 1978-11-06 1980-07-02 Seiko Instr & Electronics Analog electronic timepiece
EP0048217A1 (en) * 1980-09-12 1982-03-24 Compagnie des Montres Longines, Francillon S.A. Electronic timepiece

Also Published As

Publication number Publication date
US4744067A (en) 1988-05-10
EP0221363A1 (en) 1987-05-13
EP0221363B1 (en) 1989-09-20
JPS6293686A (en) 1987-04-30
DE3665783D1 (en) 1989-10-26

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