GB1376818A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
GB1376818A
GB1376818A GB1592472A GB1592472A GB1376818A GB 1376818 A GB1376818 A GB 1376818A GB 1592472 A GB1592472 A GB 1592472A GB 1592472 A GB1592472 A GB 1592472A GB 1376818 A GB1376818 A GB 1376818A
Authority
GB
United Kingdom
Prior art keywords
balance
coil
oscillation
transistors
april
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
GB1592472A
Other languages
English (en)
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
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1376818A publication Critical patent/GB1376818A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
GB1592472A 1971-04-08 1972-04-06 Electronic timepiece Expired GB1376818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2136971A JPS553675B1 (OSRAM) 1971-04-08 1971-04-08

Publications (1)

Publication Number Publication Date
GB1376818A true GB1376818A (en) 1974-12-11

Family

ID=12053168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1592472A Expired GB1376818A (en) 1971-04-08 1972-04-06 Electronic timepiece

Country Status (3)

Country Link
US (1) US3828545A (OSRAM)
JP (1) JPS553675B1 (OSRAM)
GB (1) GB1376818A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2312412C2 (de) * 1973-03-13 1979-03-15 Eurosil Gmbh, 8000 Muenchen Verfahren zur Synchronisation eines elektrodynamischen Uhrenantriebs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407344A (en) * 1964-09-26 1968-10-22 Shigeru Kakubari Electronic timekeeper
US3363410A (en) * 1966-01-25 1968-01-16 Suwa Seikosha Kk Apparatus for adjusting electric timepieces

Also Published As

Publication number Publication date
US3828545A (en) 1974-08-13
JPS553675B1 (OSRAM) 1980-01-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
48R Reference inserted (sect. 8/1949)
49R Reference inserted (sect. 9/1949)
PCNP Patent ceased through non-payment of renewal fee