CH624539B - Piece d'horlogerie electronique avec correction automatique de l'ecart de marche. - Google Patents

Piece d'horlogerie electronique avec correction automatique de l'ecart de marche.

Info

Publication number
CH624539B
CH624539B CH1476377A CH1476377A CH624539B CH 624539 B CH624539 B CH 624539B CH 1476377 A CH1476377 A CH 1476377A CH 1476377 A CH1476377 A CH 1476377A CH 624539 B CH624539 B CH 624539B
Authority
CH
Switzerland
Prior art keywords
rate
counters
variation
timepiece
electronic watch
Prior art date
Application number
CH1476377A
Other languages
English (en)
Other versions
CH624539GA3 (fr
Inventor
Bernard Maire
Original Assignee
Ebauches Electroniques Sa
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 of CH624539B publication Critical patent/CH624539B/fr
Application filed by Ebauches Electroniques Sa filed Critical Ebauches Electroniques Sa
Priority to CH1476377A priority Critical patent/CH624539B/fr
Priority to US05/963,992 priority patent/US4386857A/en
Priority to DE2851223A priority patent/DE2851223C3/de
Priority to JP14896478A priority patent/JPS5499476A/ja
Publication of CH624539GA3 publication Critical patent/CH624539GA3/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00—Electrically-actuated devices for setting the time-indicating means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
CH1476377A 1977-02-12 1977-12-02 Piece d'horlogerie electronique avec correction automatique de l'ecart de marche. CH624539B (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1476377A CH624539B (fr) 1977-12-02 1977-12-02 Piece d'horlogerie electronique avec correction automatique de l'ecart de marche.
US05/963,992 US4386857A (en) 1977-02-12 1978-11-27 Electronic timepiece with automatic correction of the variation of rate
DE2851223A DE2851223C3 (de) 1977-12-02 1978-11-27 Elektronisches Zeitmeßgerät mit automatischer Korrektur der Gangabweichung
JP14896478A JPS5499476A (en) 1977-12-02 1978-12-01 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1476377A CH624539B (fr) 1977-12-02 1977-12-02 Piece d'horlogerie electronique avec correction automatique de l'ecart de marche.

Publications (2)

Publication Number Publication Date
CH624539B true CH624539B (fr)
CH624539GA3 CH624539GA3 (fr) 1981-08-14

Family

ID=4403642

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1476377A CH624539B (fr) 1977-02-12 1977-12-02 Piece d'horlogerie electronique avec correction automatique de l'ecart de marche.

Country Status (4)

Country Link
US (1) US4386857A (fr)
JP (1) JPS5499476A (fr)
CH (1) CH624539B (fr)
DE (1) DE2851223C3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022949C2 (de) * 1980-06-19 1983-11-17 Werner 6802 Ladenburg Schulz Verfahren zur automatischen Korrektur der Gangabweichung einer Uhr
JPS5740675A (en) * 1980-08-25 1982-03-06 Seiko Instr & Electronics Ltd Electronic watch
US4565454A (en) * 1982-10-07 1986-01-21 Walters Richard J Time display system
US5918041A (en) * 1997-11-26 1999-06-29 International Business Machines Corporation Method and apparatus for automatically adjusting a clock
DE102004050242B4 (de) * 2004-10-15 2006-07-27 Heinz Rinderle Zeitkontrolle von elektronischen Uhren
US20090129208A1 (en) * 2009-01-28 2009-05-21 Weiss Kenneth P Apparatus, system and method for keeping time

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH141873A4 (fr) * 1973-02-01 1974-06-14
JPS5168865A (en) * 1974-12-11 1976-06-14 Seiko Instr & Electronics Denshidokei niokeru jikokushuseisochi
JPS5547717B2 (fr) * 1975-03-08 1980-12-02
CH599609B5 (fr) * 1976-04-23 1978-05-31 Ebauches Sa
CH511976A4 (fr) * 1976-04-23 1977-08-31

Also Published As

Publication number Publication date
DE2851223C3 (de) 1984-05-17
CH624539GA3 (fr) 1981-08-14
US4386857A (en) 1983-06-07
DE2851223B2 (fr) 1980-04-10
DE2851223A1 (de) 1979-06-07
JPS5499476A (en) 1979-08-06

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Legal Events

Date Code Title Description
PL Patent ceased