FR2425101A1 - WATCH PART FITTED WITH A SYNCHRONIZATION DEVICE BETWEEN AN ANALOGUE DISPLAY AND A DIGITAL DISPLAY - Google Patents

WATCH PART FITTED WITH A SYNCHRONIZATION DEVICE BETWEEN AN ANALOGUE DISPLAY AND A DIGITAL DISPLAY

Info

Publication number
FR2425101A1
FR2425101A1 FR7907724A FR7907724A FR2425101A1 FR 2425101 A1 FR2425101 A1 FR 2425101A1 FR 7907724 A FR7907724 A FR 7907724A FR 7907724 A FR7907724 A FR 7907724A FR 2425101 A1 FR2425101 A1 FR 2425101A1
Authority
FR
France
Prior art keywords
display
analogue
digital
wheel
timepiece
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.)
Granted
Application number
FR7907724A
Other languages
French (fr)
Other versions
FR2425101B1 (en
Inventor
Jean-Pierre Jaunin
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.)
SSIH Management Services SA
Original Assignee
SSIH Management Services 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 date
Application filed by SSIH Management Services SA filed Critical SSIH Management Services SA
Publication of FR2425101A1 publication Critical patent/FR2425101A1/en
Application granted granted Critical
Publication of FR2425101B1 publication Critical patent/FR2425101B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

In a timepiece having an electro- mechanical analogue display (hour and minute hands driven by a step motor) and also an electronic digital display for giving other information, a signal generator (LED 6) and a detector (photocell 7) are so arranged in relation to an element (wheel 5) coupled to the analogue display as to produce periodic signals for synchronizing the digital to the analogue display. As described the wheel 5 is turned by hour wheel 3 and its aperture 8 causes a signal to be generated at midnight. The signal is used to ensure that a digital date display is synchronized with the hands, especially after replacing the timepiece battery. Use in an alarm timepiece is also envisaged.
FR7907724A 1978-03-29 1979-03-22 WATCH PART FITTED WITH A SYNCHRONIZATION DEVICE BETWEEN AN ANALOGUE DISPLAY AND A DIGITAL DISPLAY Granted FR2425101A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89136778A 1978-03-29 1978-03-29

Publications (2)

Publication Number Publication Date
FR2425101A1 true FR2425101A1 (en) 1979-11-30
FR2425101B1 FR2425101B1 (en) 1984-01-27

Family

ID=25398061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907724A Granted FR2425101A1 (en) 1978-03-29 1979-03-22 WATCH PART FITTED WITH A SYNCHRONIZATION DEVICE BETWEEN AN ANALOGUE DISPLAY AND A DIGITAL DISPLAY

Country Status (5)

Country Link
JP (3) JPS54151475A (en)
CH (1) CH629062B (en)
DE (1) DE2910736C3 (en)
FR (1) FR2425101A1 (en)
GB (1) GB2017981B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521741A1 (en) * 1982-02-17 1983-08-19 Gorgy Timing Clock seconds indicator stepping motor synchronisation - by using quartz oscillator and opto-electronic zero position detection
FR2568029A1 (en) * 1984-07-19 1986-01-24 Hatot Leon Ets DATA TRANSMISSION INSTALLATION, IN PARTICULAR FOR DISTRIBUTION OF TIME, TRANSMITTER AND RECEIVER FOR THIS INSTALLATION

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649189GA3 (en) * 1981-12-28 1985-05-15
DD277540A1 (en) * 1988-11-30 1990-04-04 Ruhla Uhren Veb K WHEELS FACTORY
FR2795334B1 (en) * 1999-06-22 2002-10-18 Salomon Sa SKI STICK
DE102005030877A1 (en) 2005-07-01 2007-01-04 Siemens Ag slot closure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170989B1 (en) * 1972-02-10 1976-07-23 Thomson Csf
BE802129A (en) * 1973-07-10 1973-11-05 Suisse Horlogerie TIME-SETTING DEVICE FOR ELECTRONIC WATCH
US3911665A (en) * 1974-01-14 1975-10-14 Zenith Radio Corp Electronic timepiece having complementary electro-optical and electro-mechanical displays
GB1490196A (en) * 1974-03-25 1977-10-26 Suisse Horlogerie Electrically driven time-piece
JPS6120818B2 (en) * 1974-05-17 1986-05-23 Citizen Watch Co Ltd
JPS5168259A (en) * 1974-12-10 1976-06-12 Matsushita Electric Industrial Co Ltd Taimaasochi osonaeta dejitarutokei
DE2804041C3 (en) * 1978-01-31 1983-11-17 Gebrüder Junghans GmbH, 7230 Schramberg Electronic clock
JPS62127969A (en) * 1985-11-29 1987-06-10 Toshiba Corp IC card owner identification method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521741A1 (en) * 1982-02-17 1983-08-19 Gorgy Timing Clock seconds indicator stepping motor synchronisation - by using quartz oscillator and opto-electronic zero position detection
FR2568029A1 (en) * 1984-07-19 1986-01-24 Hatot Leon Ets DATA TRANSMISSION INSTALLATION, IN PARTICULAR FOR DISTRIBUTION OF TIME, TRANSMITTER AND RECEIVER FOR THIS INSTALLATION
EP0172069A1 (en) * 1984-07-19 1986-02-19 Societe Anonyme Des Etablissements Leon Hatot Data transmission installation, in particular for time distribution, transmitter and receiver for this installation

Also Published As

Publication number Publication date
DE2910736A1 (en) 1979-10-04
CH629062GA3 (en) 1982-04-15
JPS54151475A (en) 1979-11-28
JPS6417493U (en) 1989-01-27
JPS6417492U (en) 1989-01-27
GB2017981A (en) 1979-10-10
FR2425101B1 (en) 1984-01-27
CH629062B (en)
DE2910736C3 (en) 1982-02-18
GB2017981B (en) 1982-08-25
DE2910736B2 (en) 1981-06-11

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Legal Events

Date Code Title Description
ST Notification of lapse