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FR2397670A1 - Piece d'horlogerie electronique a affichage numerique - Google Patents

Piece d'horlogerie electronique a affichage numerique

Info

Publication number
FR2397670A1
FR2397670A1 FR7821880A FR7821880A FR2397670A1 FR 2397670 A1 FR2397670 A1 FR 2397670A1 FR 7821880 A FR7821880 A FR 7821880A FR 7821880 A FR7821880 A FR 7821880A FR 2397670 A1 FR2397670 A1 FR 2397670A1
Authority
FR
France
Prior art keywords
display
digital display
electronic watch
watch part
chronograph
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
FR7821880A
Other languages
English (en)
Other versions
FR2397670B1 (fr
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 FR2397670A1 publication Critical patent/FR2397670A1/fr
Application granted granted Critical
Publication of FR2397670B1 publication Critical patent/FR2397670B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an AC
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/087—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques provided with means for displaying at will a time indication or a date or a part thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electric Clocks (AREA)

Abstract

L'affichage 8 permet d'afficher sous forme numérique et de façon sélective l'heure du jour (mode garde-temps) ou un intervalle de temps (mode chronographe). Les circuits comprennent une base de temps 1, des diviseurs de fréquence 2 et registres 3 fournissant des signaux propres à chaque mode, un décodeur-activeur 4 et plusieurs commutateurs de commande 10. Un émetteur 29 de signaux indique ou bien que le mode chronographe n'est pas en opération et que ses registres ont été remis à zéro, ou bien que le comptage du chronographe a lieu, ou bien que le comptage est arrêté mais que les registres correspondants restent occupés, et dans ces deux derniers cas indépendamment de l'information effectivement affichée. L'invention permet d'enclencher le chronographe instantanément même si l'information affichée correspond au mode garde-temps.
FR7821880A 1977-07-13 1978-07-11 Piece d'horlogerie electronique a affichage numerique Granted FR2397670A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/815,398 US4164844A (en) 1977-07-13 1977-07-13 Timepiece display indicator

Publications (2)

Publication Number Publication Date
FR2397670A1 true FR2397670A1 (fr) 1979-02-09
FR2397670B1 FR2397670B1 (fr) 1981-07-31

Family

ID=25217682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821880A Granted FR2397670A1 (fr) 1977-07-13 1978-07-11 Piece d'horlogerie electronique a affichage numerique

Country Status (6)

Country Link
US (1) US4164844A (fr)
JP (2) JPS5421376A (fr)
CH (1) CH627909B (fr)
DE (1) DE2830627C2 (fr)
FR (1) FR2397670A1 (fr)
GB (1) GB2002934B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475756A1 (fr) * 1980-02-12 1981-08-14 Ebauches Sa Montre munie d'un micro-ordinateur
US4644571A (en) * 1984-09-14 1987-02-17 Kabushiki Kaisha Toshiba Timer
US4671668A (en) * 1984-09-14 1987-06-09 Kabushiki Kaisha Toshiba Timing method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151515A (ja) * 1982-03-05 1983-09-08 Toshiba Corp 試験装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686880A (en) * 1970-09-04 1972-08-29 Toshihide Samejima Electronically controlled stop watch
DE2442394A1 (de) * 1973-09-06 1975-03-20 Citizen Watch Co Ltd Vollelektronische uhr
US3992871A (en) * 1972-10-09 1976-11-23 Kabushiki Kaisha Suwa Seikosha Chronograph wristwatch
US4023345A (en) * 1974-11-25 1977-05-17 Kabushiki Kaisha Suwa Seikosha Electronic timepiece

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813533A (en) * 1972-06-02 1974-05-28 Garrett Comtronics Corp Clock calculator
IT1073981B (it) * 1975-11-17 1985-04-17 Seiko Instr & Electronics Perfezionamento negli orologi elettronici
US4058971A (en) * 1976-04-26 1977-11-22 Hughes Aircraft Company Digital wristwatch and stopwatch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686880A (en) * 1970-09-04 1972-08-29 Toshihide Samejima Electronically controlled stop watch
US3992871A (en) * 1972-10-09 1976-11-23 Kabushiki Kaisha Suwa Seikosha Chronograph wristwatch
DE2442394A1 (de) * 1973-09-06 1975-03-20 Citizen Watch Co Ltd Vollelektronische uhr
US4023345A (en) * 1974-11-25 1977-05-17 Kabushiki Kaisha Suwa Seikosha Electronic timepiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475756A1 (fr) * 1980-02-12 1981-08-14 Ebauches Sa Montre munie d'un micro-ordinateur
US4644571A (en) * 1984-09-14 1987-02-17 Kabushiki Kaisha Toshiba Timer
US4671668A (en) * 1984-09-14 1987-06-09 Kabushiki Kaisha Toshiba Timing method and apparatus

Also Published As

Publication number Publication date
GB2002934A (en) 1979-02-28
JPS5421376A (en) 1979-02-17
US4164844A (en) 1979-08-21
GB2002934B (en) 1982-02-10
CH627909GA3 (fr) 1982-02-15
CH627909B (fr)
DE2830627A1 (de) 1979-01-25
FR2397670B1 (fr) 1981-07-31
JPH0217354Y2 (fr) 1990-05-15
DE2830627C2 (de) 1983-04-28
JPS60154889U (ja) 1985-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse