GB1176700A - Electronic Timepiece. - Google Patents

Electronic Timepiece.

Info

Publication number
GB1176700A
GB1176700A GB50968/67A GB5096867A GB1176700A GB 1176700 A GB1176700 A GB 1176700A GB 50968/67 A GB50968/67 A GB 50968/67A GB 5096867 A GB5096867 A GB 5096867A GB 1176700 A GB1176700 A GB 1176700A
Authority
GB
United Kingdom
Prior art keywords
pulses
capacitor
variations
circuit
nov
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.)
Expired
Application number
GB50968/67A
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB1176700A publication Critical patent/GB1176700A/en
Expired legal-status Critical Current

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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/067—Driving circuits with distinct detecting and driving coils
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

1,176,700. Electronic timepieces. EBAUCHES S.A. Nov. 9, 1967 [Nov. 25, 1966], No.50968/67. Heading G3T. In an electronic timepiece having a mechanical oscillating regulator sustained by electrical pulses in a transducer originated as signals induced in a pick-up coil and amplified by a transistor circuit, the transistor 3 receives a control signal through a circuit including a source of electric current (having terminals 1, 2), a pickup coil 7, and an impedance 11 which is variable as a function of temperature in such manner that variations of environmental temperature are reproduced as variations in the widths of the sustaining pulses, whereby the effects of said variations of environmental temperature on the frequency of the oscillating regulator are at least partially compensated. The impedance 11 may consist of a thermistor or a thermistat circuit and it is located in series with a capacitor 5, in any of a number of alternative positions, to determine the maximum voltage to which the capacitor 5 is charged by the sustaining pulses, and thereby the duration of the discharge of the capacitor 5 through a resistor 6 which determines the interval between pulses and thereby the length of the pulses.
GB50968/67A 1966-11-25 1967-11-09 Electronic Timepiece. Expired GB1176700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1707066A CH467477A (en) 1966-11-25 1966-11-25 Electronic timepiece

Publications (1)

Publication Number Publication Date
GB1176700A true GB1176700A (en) 1970-01-07

Family

ID=4422510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50968/67A Expired GB1176700A (en) 1966-11-25 1967-11-09 Electronic Timepiece.

Country Status (4)

Country Link
US (1) US3530664A (en)
CH (2) CH1707066A4 (en)
DE (1) DE1673738A1 (en)
GB (1) GB1176700A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE47365C (en) * TH. wittfeld in Aachen, Sandkaulsteinweg 5 Transmission gear for grease guns with friction lock of the screw spindle respectively. Screw nut for backward rotation of the piston without releasing the worm
DE1032788B (en) * 1954-11-25 1958-06-26 Philips Nv Transistor amplifier with operating point stabilization
DE1209961B (en) * 1963-02-20 1966-01-27 Junghans Geb Ag Circuit arrangement for the electrically driven oscillator of a time-keeping device
US3333160A (en) * 1964-02-24 1967-07-25 Water Economy And Res Company Proximity responsive system
US3282042A (en) * 1964-09-10 1966-11-01 Bulova Watch Co Inc Crystal controlled chronometer

Also Published As

Publication number Publication date
DE1673738A1 (en) 1971-02-25
CH1707066A4 (en) 1968-07-31
US3530664A (en) 1970-09-29
CH467477A (en) 1968-07-31

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