GB2014337A - Electronic Timepiece - Google Patents

Electronic Timepiece

Info

Publication number
GB2014337A
GB2014337A GB7850358A GB7850358A GB2014337A GB 2014337 A GB2014337 A GB 2014337A GB 7850358 A GB7850358 A GB 7850358A GB 7850358 A GB7850358 A GB 7850358A GB 2014337 A GB2014337 A GB 2014337A
Authority
GB
United Kingdom
Prior art keywords
display
electro
indicate
liquid crystal
electronic timepiece
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.)
Withdrawn
Application number
GB7850358A
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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
Priority claimed from US05/877,041 external-priority patent/US4212159A/en
Priority claimed from US05/877,192 external-priority patent/US4209974A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB2014337A publication Critical patent/GB2014337A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/027—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques provided with means for displaying at will a time indication or a date or a part thereof
    • 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
    • G04G9/0094—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 using light valves, e.g. liquid crystals
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G04G9/062—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Electromechanical Clocks (AREA)

Abstract

An electronic timepiece has an electro-optic analog display, electro- optical material, e.g., liquid crystal material, being activated in selected areas to change its appearance to simulate movement of hands. Figs. 1, 2 illustrate hours, minutes and seconds indication, while Fig. 3a illustrates calendar data display. Alternatively the calendar display may be digital. The shorter radial lines indicating hours may be widened to indicate P.M. The hub electrodes may be alternately activated and deactivated to warn of low supply voltage. The hour 'hand' may be caused to flash, to indicate the time- setting condition. Polarizers and mirror reflectors may be used with the liquid crystal display. Elapsed time may be indicated. <IMAGE>
GB7850358A 1978-02-13 1978-12-29 Electronic Timepiece Withdrawn GB2014337A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US87719178A 1978-02-13 1978-02-13
US05/877,041 US4212159A (en) 1978-02-13 1978-02-13 Electronic timepiece
US05/877,192 US4209974A (en) 1978-02-13 1978-02-13 Electronic timepiece circuits

Publications (1)

Publication Number Publication Date
GB2014337A true GB2014337A (en) 1979-08-22

Family

ID=27420489

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7850358A Withdrawn GB2014337A (en) 1978-02-13 1978-12-29 Electronic Timepiece

Country Status (7)

Country Link
JP (1) JPS54115171A (en)
BR (1) BR7900873A (en)
DE (1) DE2904946A1 (en)
FR (1) FR2425100A1 (en)
GB (1) GB2014337A (en)
IT (1) IT1162613B (en)
NL (1) NL7901053A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105085A1 (en) * 1980-02-18 1982-02-18 Ebauches Electroniques S.A., 2074 Marin, Neuchâtel "ARRANGEMENT FOR ELECTRO-OPTICAL DISPLAY OF TIME IN ANALOG FORM"
WO2015128688A1 (en) * 2014-02-28 2015-09-03 Timothy Bishop Time display, method of presenting time information and timekeeping devices

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051669B2 (en) * 1979-05-23 1985-11-15 株式会社精工舎 electronic clock
JPS5669586A (en) * 1979-11-12 1981-06-10 Casio Comput Co Ltd Electric watch
JPS5679990A (en) * 1979-12-05 1981-06-30 Casio Comput Co Ltd Miniature electronic apparatus
DE3149521A1 (en) * 1981-12-14 1983-06-16 Braun Ag, 6000 Frankfurt Display device for different values
DE4015685C2 (en) * 1990-05-16 1996-11-28 Schickedanz Willi watch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410527C3 (en) * 1973-03-08 1983-11-03 Casio Computer Co., Ltd., Tokyo Electronic time display device
US4007583A (en) * 1975-05-22 1977-02-15 Rca Corporation Electronic timepiece
DE2551542A1 (en) * 1975-11-17 1977-05-26 Joachim Reich ELECTRONIC CLOCK
DE2621042C3 (en) * 1976-05-12 1979-11-15 Rudolf Ing.(Grad.) 7418 Metzingen Wehinger Display scale for digitally displaying clocks and / or instruments

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105085A1 (en) * 1980-02-18 1982-02-18 Ebauches Electroniques S.A., 2074 Marin, Neuchâtel "ARRANGEMENT FOR ELECTRO-OPTICAL DISPLAY OF TIME IN ANALOG FORM"
WO2015128688A1 (en) * 2014-02-28 2015-09-03 Timothy Bishop Time display, method of presenting time information and timekeeping devices
US10551797B2 (en) 2014-02-28 2020-02-04 Timothy Bishop Time display, method of presenting time information and timekeeping devices

Also Published As

Publication number Publication date
FR2425100A1 (en) 1979-11-30
DE2904946A1 (en) 1979-08-16
IT1162613B (en) 1987-04-01
BR7900873A (en) 1979-09-11
NL7901053A (en) 1979-08-15
IT7947971A0 (en) 1979-02-12
JPS54115171A (en) 1979-09-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)