HK41976A - Improvements in or relating to electric timepieces - Google Patents

Improvements in or relating to electric timepieces

Info

Publication number
HK41976A
HK41976A HK419/76*UA HK41976A HK41976A HK 41976 A HK41976 A HK 41976A HK 41976 A HK41976 A HK 41976A HK 41976 A HK41976 A HK 41976A
Authority
HK
Hong Kong
Prior art keywords
relating
electric timepieces
timepieces
electric
Prior art date
Application number
HK419/76*UA
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 HK41976A publication Critical patent/HK41976A/en

Links

Classifications

    • 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
    • G04G9/085—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques provided with date indication
    • 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
    • G04G9/0035—Details constructional
    • G04G9/0041—Illumination devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
HK419/76*UA 1970-11-17 1976-06-30 Improvements in or relating to electric timepieces HK41976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10070970 1970-11-17

Publications (1)

Publication Number Publication Date
HK41976A true HK41976A (en) 1976-07-09

Family

ID=14281192

Family Applications (1)

Application Number Title Priority Date Filing Date
HK419/76*UA HK41976A (en) 1970-11-17 1976-06-30 Improvements in or relating to electric timepieces

Country Status (3)

Country Link
US (1) US3668861A (en)
GB (1) GB1365133A (en)
HK (1) HK41976A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765747A (en) * 1971-08-02 1973-10-16 Texas Instruments Inc Liquid crystal display using a moat, integral driver circuit and electrodes formed within a semiconductor substrate
US3759031A (en) * 1972-01-26 1973-09-18 Hmw Industries Modular solid state wristwatch
GB1431013A (en) * 1972-03-15 1976-04-07 Casio Computer Co Ltd Electronic clock devices
US3757510A (en) * 1972-07-03 1973-09-11 Hughes Aircraft Co High frequency electronic watch with low power dissipation
JPS4951176U (en) * 1972-08-11 1974-05-07
JPS4953476A (en) * 1972-09-22 1974-05-24
GB1405677A (en) * 1972-10-13 1975-09-10 Suisse Pour Lindustrie Horloge Electrically powered time-piece
CH617312GA3 (en) * 1972-12-29 1980-05-30 Battery-driven time measuring device
US3803827A (en) * 1973-02-01 1974-04-16 Time Computer Solid state electronic wristwatch
US3803834A (en) * 1973-02-06 1974-04-16 Time Computer Wristwatch calculator
US3869195A (en) * 1973-07-02 1975-03-04 Itek Corp Liquid crystal display containing segmented source of back-lighting
DE2442394B2 (en) * 1973-09-06 1977-06-02 Citizen Watch Co., Ltd., Tokio FULLY ELECTRONIC WATCH
US3984973A (en) * 1973-10-29 1976-10-12 Hughes Aircraft Company Digital watch with liquid crystal and light emitting diode displays
US3911665A (en) * 1974-01-14 1975-10-14 Zenith Radio Corp Electronic timepiece having complementary electro-optical and electro-mechanical displays
US4026101A (en) * 1975-05-27 1977-05-31 Hughes Aircraft Company Push button response of combination LCD/LED wristwatch
US4009566A (en) * 1975-05-27 1977-03-01 Hughes Aircraft Company Digital watch with liquid crystal and sequentially read out light emitting diode displays
DE2525694C3 (en) * 1975-06-10 1978-10-05 Willi Dipl.-Ing. 6050 Offenbach Schickedanz Time display device
US4021935A (en) * 1976-02-20 1977-05-10 Frank Witt Flight training hood
JPS5543435A (en) * 1978-09-22 1980-03-27 Citizen Watch Co Ltd Electronic watch
DE3204622A1 (en) * 1982-02-10 1983-08-18 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Circuit arrangement for the illumination of indicating displays
US5384577A (en) * 1992-05-21 1995-01-24 Motorola, Inc. Combination display backlight and light sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516242A (en) * 1968-02-23 1970-06-23 Sprague Electric Co Visual display of time variable electric information
US3505804A (en) * 1968-04-23 1970-04-14 Rca Corp Solid state clock
US3576099A (en) * 1969-04-22 1971-04-27 Hamilton Watch Co Solid state timepiece having electro-optical time display
US3613351A (en) * 1969-05-13 1971-10-19 Hamilton Watch Co Wristwatch with liquid crystal display

Also Published As

Publication number Publication date
GB1365133A (en) 1974-08-29
US3668861A (en) 1972-06-13

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