GB2017981B - Synchronizing a digital and an analogue display in a timepiece - Google Patents

Synchronizing a digital and an analogue display in a timepiece

Info

Publication number
GB2017981B
GB2017981B GB7910794A GB7910794A GB2017981B GB 2017981 B GB2017981 B GB 2017981B GB 7910794 A GB7910794 A GB 7910794A GB 7910794 A GB7910794 A GB 7910794A GB 2017981 B GB2017981 B GB 2017981B
Authority
GB
United Kingdom
Prior art keywords
timepiece
digital
display
analogue display
synchronizing
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
GB7910794A
Other versions
GB2017981A (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.)
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 GB2017981A publication Critical patent/GB2017981A/en
Application granted granted Critical
Publication of GB2017981B publication Critical patent/GB2017981B/en
Expired 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. <IMAGE>
GB7910794A 1978-03-29 1979-03-28 Synchronizing a digital and an analogue display in a timepiece Expired GB2017981B (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
GB2017981A GB2017981A (en) 1979-10-10
GB2017981B true GB2017981B (en) 1982-08-25

Family

ID=25398061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910794A Expired GB2017981B (en) 1978-03-29 1979-03-28 Synchronizing a digital and an analogue display in a timepiece

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)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649189GA3 (en) * 1981-12-28 1985-05-15
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
FR2568029B1 (en) * 1984-07-19 1987-05-29 Hatot Leon Ets DATA TRANSMISSION INSTALLATION, PARTICULARLY FOR TIME DISTRIBUTION, TRANSMITTER AND RECEIVER FOR THIS INSTALLATION
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 Ind 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 System for identifying possessor of ic card

Also Published As

Publication number Publication date
FR2425101A1 (en) 1979-11-30
GB2017981A (en) 1979-10-10
JPS6417493U (en) 1989-01-27
CH629062B (en)
JPS6417492U (en) 1989-01-27
FR2425101B1 (en) 1984-01-27
JPS54151475A (en) 1979-11-28
CH629062GA3 (en) 1982-04-15
DE2910736C3 (en) 1982-02-18
DE2910736A1 (en) 1979-10-04
DE2910736B2 (en) 1981-06-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee