[go: up one dir, main page]

CH616554GA3 - - Google Patents

Download PDF

Info

Publication number
CH616554GA3
CH616554GA3 CH751078A CH751078A CH616554GA3 CH 616554G A3 CH616554G A3 CH 616554GA3 CH 751078 A CH751078 A CH 751078A CH 751078 A CH751078 A CH 751078A CH 616554G A3 CH616554G A3 CH 616554GA3
Authority
CH
Switzerland
Prior art keywords
alarm
control
power transistors
stepping motor
coil
Prior art date
Application number
CH751078A
Other versions
CH616554B (en
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 CH616554B publication Critical patent/CH616554B/en
Application filed filed Critical
Priority to CH751078A priority Critical patent/CH616554B/en
Priority to US06/050,147 priority patent/US4261050A/en
Priority to DE2924927A priority patent/DE2924927C3/en
Priority to JP8738979A priority patent/JPS5512499A/en
Publication of CH616554GA3 publication Critical patent/CH616554GA3/xx

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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Telephone Function (AREA)

Abstract

An electronic watch having a stepping motor and equipped with an alarm, in which the number of power transistors necessary for the control of the stepping motor and of the alarm transducer is reduced so as to permit the integration of all the electronics of the watch of a single chip and to reduce the number of terminals of the integrated circuit and the number of interconnections. A pair of the power transistors (5, 6) is common to the control of the motor coil (11) and of the alarm transducer coil (12) and the alarm control signal is inserted between the driving pulses.
CH751078A 1978-07-11 1978-07-11 ELECTRONIC WATCH WITH STEP MOTOR EQUIPPED WITH AN ALARM SYSTEM. CH616554B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH751078A CH616554B (en) 1978-07-11 1978-07-11 ELECTRONIC WATCH WITH STEP MOTOR EQUIPPED WITH AN ALARM SYSTEM.
US06/050,147 US4261050A (en) 1978-07-11 1979-06-19 Electronic watch having a stepping motor equipped with an alarm system
DE2924927A DE2924927C3 (en) 1978-07-11 1979-06-20 Electronic clock with stepping motor, provided with an alarm device
JP8738979A JPS5512499A (en) 1978-07-11 1979-07-10 Alarm attached electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH751078A CH616554B (en) 1978-07-11 1978-07-11 ELECTRONIC WATCH WITH STEP MOTOR EQUIPPED WITH AN ALARM SYSTEM.

Publications (2)

Publication Number Publication Date
CH616554B CH616554B (en)
CH616554GA3 true CH616554GA3 (en) 1980-04-15

Family

ID=4326262

Family Applications (1)

Application Number Title Priority Date Filing Date
CH751078A CH616554B (en) 1978-07-11 1978-07-11 ELECTRONIC WATCH WITH STEP MOTOR EQUIPPED WITH AN ALARM SYSTEM.

Country Status (4)

Country Link
US (1) US4261050A (en)
JP (1) JPS5512499A (en)
CH (1) CH616554B (en)
DE (1) DE2924927C3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739376A (en) * 1980-08-20 1982-03-04 Seiko Instr & Electronics Ltd Alarm electronic timepiece
JPS58168731A (en) * 1982-03-29 1983-10-05 Penta Ocean Constr Co Ltd Dredger
JPS58207491A (en) * 1982-05-26 1983-12-02 米井建機株式会社 Shaft bit drilling method and apparatus
CH650125GA3 (en) * 1983-06-29 1985-07-15

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318084A (en) * 1964-10-02 1967-05-09 Gen Time Corp Transistor alarm clock
US4068461A (en) * 1976-04-15 1978-01-17 Frontier Inc. Digital electronic alarm watch
JPS5498671A (en) * 1977-12-28 1979-08-03 Citizen Watch Co Ltd Electronic watch

Also Published As

Publication number Publication date
JPS5512499A (en) 1980-01-29
US4261050A (en) 1981-04-07
DE2924927C3 (en) 1986-07-31
DE2924927A1 (en) 1980-01-24
CH616554B (en)
DE2924927B2 (en) 1981-03-12

Similar Documents

Publication Publication Date Title
MY102712A (en) A semiconductor component incorporated a power-mosfet and a control circuit
GB2097971B (en) Electronic timepiece
GB2028585B (en) On board integrated circuit chip signal source abstract of the disclosure
JPS53136870A (en) Electronic watch
DE3173631D1 (en) Procedure and circuit arrangement for checking a circuit which is integrated with a three-state driver, which is driven to high impedance by this circuit
CH616554GA3 (en)
JPS6418314A (en) Logic circuit
JPS5740672A (en) Electronic watch
CH615313GA3 (en) Method of manufacturing a constituent of an electronic timepiece, especially of a wristwatch, and electronic timepiece constituent resulting from this method
JPS5696530A (en) Driving circuit of tri-state type
JPS6459842A (en) Semiconductor device
JPS56123108A (en) Muting circuit
JPS54140444A (en) Ratch circuit
JPS5277669A (en) Plastic ic case
JPS6478015A (en) Semiconductor integrated circuit device
JPS57199334A (en) Semiconductor integrated circuit
JPS56162539A (en) Signal-line driving circuit
JPS5524609A (en) Power source of electronic element
JPS533155A (en) Electronic watch
JPS52153478A (en) Electronic watch
JPS53148336A (en) Driving circuit for liquid crystal display unit
JPS5728284A (en) Electronic wrist watch with alarm
SE7905148L (en) RELE
JPS5777985A (en) Power supply circuit of electronic clock
JPS6464582A (en) Output circuit of ic for motor

Legal Events

Date Code Title Description
PL Patent ceased