FR2099714B1 - - Google Patents

Info

Publication number
FR2099714B1
FR2099714B1 FR7127982A FR7127982A FR2099714B1 FR 2099714 B1 FR2099714 B1 FR 2099714B1 FR 7127982 A FR7127982 A FR 7127982A FR 7127982 A FR7127982 A FR 7127982A FR 2099714 B1 FR2099714 B1 FR 2099714B1
Authority
FR
France
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
FR7127982A
Other versions
FR2099714A1 (fr
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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
Priority claimed from JP6651370A external-priority patent/JPS4943347B1/ja
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of FR2099714A1 publication Critical patent/FR2099714A1/fr
Application granted granted Critical
Publication of FR2099714B1 publication Critical patent/FR2099714B1/fr
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
    • G04C3/069—Driving circuits using a single coil for detection and driving purposes
    • 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
    • G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic 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
    • G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/108—Driving circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
FR7127982A 1970-07-31 1971-07-30 Expired FR2099714B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6651370A JPS4943347B1 (fr) 1970-07-31 1970-07-31
JP7773270 1970-09-07
JP8497470 1970-09-30

Publications (2)

Publication Number Publication Date
FR2099714A1 FR2099714A1 (fr) 1972-03-17
FR2099714B1 true FR2099714B1 (fr) 1975-02-07

Family

ID=27299156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7127982A Expired FR2099714B1 (fr) 1970-07-31 1971-07-30

Country Status (2)

Country Link
US (1) US3744233A (fr)
FR (1) FR2099714B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1523934A1 (de) * 1965-06-08 1970-03-26 Junghans Gmbh Geb Auf elektromagnetischem Wege in Schwingung gehaltene Stimmgabel
CH491426A (de) * 1968-02-06 1970-02-13 Reich Robert W Elektronisch-magnetische Antriebsvorrichtung für Uhren

Also Published As

Publication number Publication date
US3744233A (en) 1973-07-10
DE2138568A1 (de) 1972-02-03
DE2138568B2 (de) 1976-04-29
FR2099714A1 (fr) 1972-03-17

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Legal Events

Date Code Title Description
ST Notification of lapse