GB1355892A - Drive circuit for an electronic timepiece - Google Patents

Drive circuit for an electronic timepiece

Info

Publication number
GB1355892A
GB1355892A GB4426372A GB4426372A GB1355892A GB 1355892 A GB1355892 A GB 1355892A GB 4426372 A GB4426372 A GB 4426372A GB 4426372 A GB4426372 A GB 4426372A GB 1355892 A GB1355892 A GB 1355892A
Authority
GB
United Kingdom
Prior art keywords
flip
input
signal
flop
drive
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
GB4426372A
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of GB1355892A publication Critical patent/GB1355892A/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
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
GB4426372A 1971-09-25 1972-09-25 Drive circuit for an electronic timepiece Expired GB1355892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7475971A JPS5319944B2 (fr) 1971-09-25 1971-09-25

Publications (1)

Publication Number Publication Date
GB1355892A true GB1355892A (en) 1974-06-05

Family

ID=13556511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4426372A Expired GB1355892A (en) 1971-09-25 1972-09-25 Drive circuit for an electronic timepiece

Country Status (4)

Country Link
US (1) US3812670A (fr)
JP (1) JPS5319944B2 (fr)
DE (1) DE2247210C2 (fr)
GB (1) GB1355892A (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542356B2 (fr) * 1972-12-22 1980-10-30
CH581346B5 (fr) * 1973-07-19 1976-10-29 Ebauches Sa
JPS5031864A (fr) * 1973-07-20 1975-03-28
ES430659A1 (es) * 1973-10-24 1976-11-01 Jauch Un procedimiento y un dispositivo para la sincronizacion deun sistema oscilante accionado por un acumulador mecanico deenergia, en especial de un reloj.
JPS587190B2 (ja) * 1973-12-05 1983-02-08 セイコーエプソン株式会社 スイシヨウドケイ
GB1488914A (en) * 1973-12-19 1977-10-19 Citizen Watch Co Ltd Electronic timepiece
US4162608A (en) * 1974-06-05 1979-07-31 Kabushiki Kaisha Suwa Seikosha Electronic timepiece frequency regulating circuit
JPS5181165A (fr) * 1975-01-13 1976-07-15 Suwa Seikosha Kk
JPS5292560A (en) * 1976-01-29 1977-08-04 Seiko Instr & Electronics Ltd Switch box drive pulse width control circuit for electronic clocks
JPS5915533B2 (ja) * 1976-08-20 1984-04-10 シチズン時計株式会社 電子装置の駆動回路
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
US4104860A (en) * 1976-12-27 1978-08-08 Solid State Scientific Inc. High speed dynamic flip-flop system
CH635973B (fr) * 1977-01-19 Suwa Seikosha Kk Circuit de commande pour un transducteur electromecanique d'une montre, notamment d'une montre-bracelet electronique.
US4219999A (en) * 1977-03-03 1980-09-02 Citizen Watch Company, Limited Electronic timepiece equipped with battery life display
JPS53114467A (en) * 1977-03-16 1978-10-05 Seiko Instr & Electronics Ltd Electronic watch
JPS53132386A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53132381A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5653154Y2 (fr) * 1977-04-25 1981-12-11
JPS5428176A (en) * 1977-08-04 1979-03-02 Seiko Instr & Electronics Ltd Electronic watch
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
JPS54156676A (en) * 1978-05-31 1979-12-10 Seiko Epson Corp Wristwatch
CH616045B (fr) * 1978-06-20 Ebauches Sa Procede pour reduire la consommation d'une piece d'horlogerie electronique et piece d'horlogerie electronique mettant en oeuvre ce procede.
US4283783A (en) * 1978-11-28 1981-08-11 Citizen Watch Company Limited Drive control system for stepping motor
CH647383GA3 (fr) * 1981-02-04 1985-01-31
JPS5860292U (ja) * 1982-07-22 1983-04-23 セイコーエプソン株式会社 アラ−ム付電子時計
JPS63217288A (ja) * 1987-03-06 1988-09-09 Seikosha Co Ltd 電磁駆動回路
JPS6333196U (fr) * 1987-04-10 1988-03-03
JPH02222859A (ja) * 1990-01-11 1990-09-05 Seiko Epson Corp アラーム付電子機器
DE69413668T2 (de) * 1993-01-18 1999-04-15 Seiko Instruments Inc., Tokio/Tokyo Zeitgeber

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370414A (en) * 1965-06-22 1968-02-27 Benrus Watch Company Inc Electronic timepiece
JPS4943989B1 (fr) * 1968-07-19 1974-11-26
DE1809223B2 (de) * 1968-11-15 1972-11-30 Gebrüder Junghans GmbH, 7230 Schramberg Armbanduhr mit einem piezoelektrischen kristall als zeithaltendem schwinger
FR2060185B2 (fr) * 1969-09-10 1974-03-15 Lavet Marius
GB1279058A (en) * 1970-01-28 1972-06-21 Seiko Instr & Electronics Timepiece
US3699762A (en) * 1971-04-05 1972-10-24 Timex Corp Synchronized contact watch

Also Published As

Publication number Publication date
US3812670A (en) 1974-05-28
JPS5319944B2 (fr) 1978-06-23
DE2247210C2 (de) 1983-01-20
JPS4841772A (fr) 1973-06-18
DE2247210A1 (de) 1973-03-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee