FR2125580A1 - - Google Patents

Info

Publication number
FR2125580A1
FR2125580A1 FR7205486A FR7205486A FR2125580A1 FR 2125580 A1 FR2125580 A1 FR 2125580A1 FR 7205486 A FR7205486 A FR 7205486A FR 7205486 A FR7205486 A FR 7205486A FR 2125580 A1 FR2125580 A1 FR 2125580A1
Authority
FR
France
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
FR7205486A
Other languages
French (fr)
Other versions
FR2125580B1 (OSRAM
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of FR2125580A1 publication Critical patent/FR2125580A1/fr
Application granted granted Critical
Publication of FR2125580B1 publication Critical patent/FR2125580B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0047—Details electrical, e.g. selection or application of the operating voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
FR7205486A 1971-02-18 1972-02-18 Expired FR2125580B1 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46007161 1971-02-18

Publications (2)

Publication Number Publication Date
FR2125580A1 true FR2125580A1 (OSRAM) 1972-09-29
FR2125580B1 FR2125580B1 (OSRAM) 1977-04-01

Family

ID=11658337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7205486A Expired FR2125580B1 (OSRAM) 1971-02-18 1972-02-18

Country Status (4)

Country Link
US (1) US3828547A (OSRAM)
DE (1) DE2206102C2 (OSRAM)
FR (1) FR2125580B1 (OSRAM)
GB (1) GB1339402A (OSRAM)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613341B (de) * 1972-09-20 Citizen Watch Co Ltd Elektronisches, zeithaltendes geraet, insbesondere armbanduhr.
JPS5751076B2 (OSRAM) * 1973-08-02 1982-10-30
US4014165A (en) * 1974-03-25 1977-03-29 Texas Instruments Incorporated DC-DC converter in watch system
JPS5159667A (OSRAM) * 1974-11-21 1976-05-24 Suwa Seikosha Kk
US3983690A (en) * 1975-05-19 1976-10-05 Mcsohmer Corporation Digital timepiece having chronometric display
JPS51140642A (en) * 1975-05-29 1976-12-03 Seiko Epson Corp Driving circuit
JPS52128100A (en) * 1976-04-21 1977-10-27 Toshiba Corp Driver circuit
US4208869A (en) * 1976-07-31 1980-06-24 Citizen Watch Co., Ltd. Illumination device for electronic timepiece
US4146876A (en) * 1977-06-29 1979-03-27 International Business Machines Corporation Matrix addressed electrochromic display
JPS5643605A (en) * 1979-09-18 1981-04-22 Fujitsu Ltd Photoswitch
US4593279A (en) * 1981-12-24 1986-06-03 Texas Instruments Incorporated Low power liquid crystal display driver circuit
US4607176A (en) * 1984-08-22 1986-08-19 The United States Of America As Represented By The Secretary Of The Air Force Tally cell circuit
US4866430A (en) * 1986-12-11 1989-09-12 Motorola, Inc. Low voltage LED driver circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272997A (en) * 1968-06-13 1972-05-03 United States Time Corp Horological electronic circuit
US3613351A (en) * 1969-05-13 1971-10-19 Hamilton Watch Co Wristwatch with liquid crystal display
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch
CH697470A4 (OSRAM) * 1970-05-11 1972-08-31
CA906067A (en) * 1970-05-14 1972-07-25 E. Harris John Crystal controlled electric clock
US3664118A (en) * 1970-09-09 1972-05-23 Hamilton Watch Co Electronically controlled timepiece using low power mos transistor circuitry
JPS4711874A (OSRAM) * 1970-11-05 1972-06-14
GB1343660A (en) * 1970-12-29 1974-01-16 Suwa Seikosha Kk Timepiece

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
(REVUE US"ELECTRONICS",VOL.45,NO 1,3-1-1972 *
ARTICLE ANONYME"LIQUID CRYSTAL,C *
GETS MARKET DATE".) *
MOS WATCH *
MOS WATCH GETS MARKET DATE".) *
PAGES 7E *
REVUE US"ELECTRONICS",VOL.45,NO 1,3-1-1972 *

Also Published As

Publication number Publication date
US3828547A (en) 1974-08-13
DE2206102A1 (de) 1972-08-31
DE2206102C2 (de) 1983-03-24
GB1339402A (en) 1973-12-05
FR2125580B1 (OSRAM) 1977-04-01

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