GB1400730A - Detection of errors occurring in electronic timepieces - Google Patents

Detection of errors occurring in electronic timepieces

Info

Publication number
GB1400730A
GB1400730A GB4928872A GB4928872A GB1400730A GB 1400730 A GB1400730 A GB 1400730A GB 4928872 A GB4928872 A GB 4928872A GB 4928872 A GB4928872 A GB 4928872A GB 1400730 A GB1400730 A GB 1400730A
Authority
GB
United Kingdom
Prior art keywords
timepiece
transducer
gear train
capacitor
lag
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
GB4928872A
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.)
SUISSE POUR LINDUSTRIE HORLOGE
Original Assignee
SUISSE POUR LINDUSTRIE HORLOGE
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 SUISSE POUR LINDUSTRIE HORLOGE filed Critical SUISSE POUR LINDUSTRIE HORLOGE
Publication of GB1400730A publication Critical patent/GB1400730A/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)
  • Electromechanical Clocks (AREA)
GB4928872A 1971-10-25 1972-10-25 Detection of errors occurring in electronic timepieces Expired GB1400730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1548471A CH556051A (US07608600-20091027-C00054.png) 1971-10-25 1971-10-25

Publications (1)

Publication Number Publication Date
GB1400730A true GB1400730A (en) 1975-07-23

Family

ID=4409461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4928872A Expired GB1400730A (en) 1971-10-25 1972-10-25 Detection of errors occurring in electronic timepieces

Country Status (4)

Country Link
US (1) US3789599A (US07608600-20091027-C00054.png)
JP (1) JPS4858877A (US07608600-20091027-C00054.png)
CH (2) CH1548471A4 (US07608600-20091027-C00054.png)
GB (1) GB1400730A (US07608600-20091027-C00054.png)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1450071A (en) * 1972-10-02 1976-09-22 Citizen Watch Co Lgd Electronic timepiece
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.
GB1488914A (en) * 1973-12-19 1977-10-19 Citizen Watch Co Ltd Electronic timepiece
JPS5651590B2 (US07608600-20091027-C00054.png) * 1974-09-24 1981-12-07
CN101976035B (zh) * 2010-10-14 2012-10-03 烟台持久钟表集团有限公司 一种时钟钟针位置检测装置及检测方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928793A (en) * 1930-09-29 1933-10-03 Arthur F Poole System and method for indicating time
CH490710A (fr) * 1966-02-10 1969-08-15 Suisse Horlogerie Pièce d'horlogerie électronique
US3451210A (en) * 1966-07-01 1969-06-24 Benrus Corp System for maintaining oscillations in an electric timing mechanism having an oscillatory element
CH468664A (fr) * 1966-12-13 1969-03-31 Centre Electron Horloger Horloge électronique
US3609957A (en) * 1969-03-27 1971-10-05 Gen Time Corp Drive arrangement for timekeeping system

Also Published As

Publication number Publication date
JPS4858877A (US07608600-20091027-C00054.png) 1973-08-17
US3789599A (en) 1974-02-05
CH1548471A4 (US07608600-20091027-C00054.png) 1974-03-15
CH556051A (US07608600-20091027-C00054.png) 1974-11-15

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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