DE69001009D1 - ELECTRONIC MOVEMENT. - Google Patents

ELECTRONIC MOVEMENT.

Info

Publication number
DE69001009D1
DE69001009D1 DE9090120671T DE69001009T DE69001009D1 DE 69001009 D1 DE69001009 D1 DE 69001009D1 DE 9090120671 T DE9090120671 T DE 9090120671T DE 69001009 T DE69001009 T DE 69001009T DE 69001009 D1 DE69001009 D1 DE 69001009D1
Authority
DE
Germany
Prior art keywords
output signal
time base
frequency
timepiece
generating means
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 - Fee Related
Application number
DE9090120671T
Other languages
German (de)
Other versions
DE69001009T2 (en
Inventor
Jean-Pierre Wattenhofer
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.)
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
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 Ebauchesfabrik ETA AG filed Critical Ebauchesfabrik ETA AG
Application granted granted Critical
Publication of DE69001009D1 publication Critical patent/DE69001009D1/en
Publication of DE69001009T2 publication Critical patent/DE69001009T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • 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
    • G04G3/027—Circuits for deriving low frequency timing pulses from pulses of higher frequency by combining pulse-trains of different frequencies, e.g. obtained from two independent oscillators or from a common oscillator by means of different frequency dividing ratios

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal Substances (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

The invention relates to an electronic timepiece. This timepiece comprises: - a time base (G) supplying an output signal (Se), - means of displaying the time (TAF) connected to this time base by the intermediary of a dividing chain (14), - means of adjustment (16) connected to the dividing chain for adjusting over a predetermined periodicity the frequency variations of the output signal (Se), and - generating means (20) for generating an auxiliary signal (Sr) having a frequency distinctly higher than that of the output signal (Se). This timepiece is characterised in that the generating means (20) comprise slaving means to slave the frequency of the auxiliary signal (Sr) to that of the output signal (Se), the generating means being arranged to be connected selectively to the junction between the time base (G) and the dividing chain (14) in order to shorten, when checking the operation, the predetermined adjustment periodicity. The invention is particularly adapted so that its operation is efficiently measured.
DE90120671T 1989-11-10 1990-10-29 Electronic clockwork. Expired - Fee Related DE69001009T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4054/89A CH677577B5 (en) 1989-11-10 1989-11-10

Publications (2)

Publication Number Publication Date
DE69001009D1 true DE69001009D1 (en) 1993-04-08
DE69001009T2 DE69001009T2 (en) 1993-09-30

Family

ID=4268958

Family Applications (1)

Application Number Title Priority Date Filing Date
DE90120671T Expired - Fee Related DE69001009T2 (en) 1989-11-10 1990-10-29 Electronic clockwork.

Country Status (4)

Country Link
EP (1) EP0427077B1 (en)
JP (1) JP3066605B2 (en)
CH (1) CH677577B5 (en)
DE (1) DE69001009T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW475991B (en) * 1998-12-28 2002-02-11 Nippon Kouatsu Electric Co Ltd Fault point location system
EP3168695B1 (en) * 2015-11-13 2021-03-10 ETA SA Manufacture Horlogère Suisse Method for testing the performance of a quartz watch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5550191A (en) * 1978-10-06 1980-04-11 Citizen Watch Co Ltd Electronic timepiece
US4282594A (en) * 1978-12-27 1981-08-04 Citizen Watch Company Limited Electronic timepiece
US4400093A (en) * 1981-07-06 1983-08-23 Omega Louis Brandt & Frere S.A. Method for inspecting the running of a timepiece and timepiece adapted for such method
US4408897A (en) * 1982-09-22 1983-10-11 Ebauches Electroniques S.A. Electronic timepiece having a digital frequency correction circuit

Also Published As

Publication number Publication date
CH677577GA3 (en) 1991-06-14
DE69001009T2 (en) 1993-09-30
JP3066605B2 (en) 2000-07-17
EP0427077A1 (en) 1991-05-15
EP0427077B1 (en) 1993-03-03
JPH03172791A (en) 1991-07-26
CH677577B5 (en) 1991-12-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee