GB1339402A - Timepiece - Google Patents

Timepiece

Info

Publication number
GB1339402A
GB1339402A GB255072A GB255072A GB1339402A GB 1339402 A GB1339402 A GB 1339402A GB 255072 A GB255072 A GB 255072A GB 255072 A GB255072 A GB 255072A GB 1339402 A GB1339402 A GB 1339402A
Authority
GB
United Kingdom
Prior art keywords
transformer
volts
liquid crystal
vibrator
unit
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
GB255072A
Other languages
English (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.)
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 GB1339402A publication Critical patent/GB1339402A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—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)
GB255072A 1971-02-18 1972-01-19 Timepiece Expired GB1339402A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1339402A true GB1339402A (en) 1973-12-05

Family

ID=11658337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB255072A Expired GB1339402A (en) 1971-02-18 1972-01-19 Timepiece

Country Status (4)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2347404C2 (de) * 1972-09-20 1982-08-19 Citizen Watch Co., Ltd., Tokyo Spannungserhöhungsschaltung für Uhren
JPS5751076B2 (https=) * 1973-08-02 1982-10-30
US4014165A (en) * 1974-03-25 1977-03-29 Texas Instruments Incorporated DC-DC converter in watch system
JPS5159667A (https=) * 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
CH532811A (fr) * 1970-05-11 1972-08-31 Manuf Des Montres Rolex S A Bi Pièce d'horlogerie comprenant un dispositif d'affichage avec au moins une cellule à cristal liquide
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 (https=) * 1970-11-05 1972-06-14
GB1343660A (en) * 1970-12-29 1974-01-16 Suwa Seikosha Kk Timepiece

Also Published As

Publication number Publication date
FR2125580A1 (https=) 1972-09-29
DE2206102A1 (de) 1972-08-31
DE2206102C2 (de) 1983-03-24
US3828547A (en) 1974-08-13
FR2125580B1 (https=) 1977-04-01

Similar Documents

Publication Publication Date Title
GB1339402A (en) Timepiece
GB1342164A (en) Solid state watch
GB1312107A (en) Heartbeat rate monitors
GB1513281A (en) Liquid crystal display device
US3802182A (en) Timepiece with flickering digital display
US3750383A (en) Quartz-oscillator controlled timepiece using liquid crystal display device
US4028880A (en) Life display device of a cell incorporated into an electronic timepiece
GB1330781A (en) Drive arrangement for an electronic timepiece
GB1023669A (en) Oscillator for time-pieces
GB2018473B (en) Piezoelectric crystal controlled timepieces
US3886724A (en) Liquid crystal display watch
GB1339403A (en) Timepiece
SE339951B (https=)
GB1491003A (en) Dc-dc converter for a liquid crystal display device of a timepiece
GB1436296A (en) Dc voltage boosters suitable for use in electronic timepieces of the liquid crystal display type
GB1041951A (en) Dial train arrangement for a timekeeping instrument
GB1492288A (en) Electronic wristwatch
ES423218A1 (es) Perfeccionamientos en un reloj electrico.
GB1402679A (en) Electronic timepieces
GB1439550A (en) Electronic timepiece
JPS53144776A (en) Crystal wristwatch
GB1450237A (en) Electric timepieces
GB1509611A (en) Electronic time keeper with a digital display
JPS6026990B2 (ja) 電子時計
JPS53110565A (en) Liquid crystal display system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years