JPS5319944B2 - - Google Patents

Info

Publication number
JPS5319944B2
JPS5319944B2 JP7475971A JP7475971A JPS5319944B2 JP S5319944 B2 JPS5319944 B2 JP S5319944B2 JP 7475971 A JP7475971 A JP 7475971A JP 7475971 A JP7475971 A JP 7475971A JP S5319944 B2 JPS5319944 B2 JP S5319944B2
Authority
JP
Japan
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
JP7475971A
Other languages
Japanese (ja)
Other versions
JPS4841772A (de
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 filed Critical
Priority to JP7475971A priority Critical patent/JPS5319944B2/ja
Priority to DE2247210A priority patent/DE2247210C2/de
Priority to US00291531A priority patent/US3812670A/en
Priority to GB4426372A priority patent/GB1355892A/en
Publication of JPS4841772A publication Critical patent/JPS4841772A/ja
Publication of JPS5319944B2 publication Critical patent/JPS5319944B2/ja
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)
JP7475971A 1971-09-25 1971-09-25 Expired JPS5319944B2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7475971A JPS5319944B2 (de) 1971-09-25 1971-09-25
DE2247210A DE2247210C2 (de) 1971-09-25 1972-09-25 Elektronisches Uhrwerk
US00291531A US3812670A (en) 1971-09-25 1972-09-25 Converter drive circuit in an electronic timepiece
GB4426372A GB1355892A (en) 1971-09-25 1972-09-25 Drive circuit for an electronic timepiece

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS4841772A JPS4841772A (de) 1973-06-18
JPS5319944B2 true JPS5319944B2 (de) 1978-06-23

Family

ID=13556511

Family Applications (1)

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

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5653154Y2 (de) * 1977-04-25 1981-12-11

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542356B2 (de) * 1972-12-22 1980-10-30
CH1057373A4 (de) * 1973-07-19 1976-05-14
JPS5031864A (de) * 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 (de) * 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
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 (de) * 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 (de) * 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
JP3299756B2 (ja) * 1993-01-18 2002-07-08 セイコーインスツルメンツ株式会社 電子時計

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 (de) * 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 (de) * 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5653154Y2 (de) * 1977-04-25 1981-12-11

Also Published As

Publication number Publication date
US3812670A (en) 1974-05-28
DE2247210A1 (de) 1973-03-29
GB1355892A (en) 1974-06-05
JPS4841772A (de) 1973-06-18
DE2247210C2 (de) 1983-01-20

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