ES423218A1 - Perfeccionamientos en un reloj electrico. - Google Patents

Perfeccionamientos en un reloj electrico.

Info

Publication number
ES423218A1
ES423218A1 ES423218A ES423218A ES423218A1 ES 423218 A1 ES423218 A1 ES 423218A1 ES 423218 A ES423218 A ES 423218A ES 423218 A ES423218 A ES 423218A ES 423218 A1 ES423218 A1 ES 423218A1
Authority
ES
Spain
Prior art keywords
rectification
counter
derived
liquid crystal
pulsating
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
ES423218A
Other languages
English (en)
Spanish (es)
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.)
Biviator AG
Original Assignee
Biviator AG
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 Biviator AG filed Critical Biviator AG
Publication of ES423218A1 publication Critical patent/ES423218A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/02—Conversion or regulation of current or voltage
    • 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)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
ES423218A 1973-03-13 1974-02-14 Perfeccionamientos en un reloj electrico. Expired ES423218A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH361373 1973-03-13

Publications (1)

Publication Number Publication Date
ES423218A1 true ES423218A1 (es) 1976-05-01

Family

ID=4259744

Family Applications (1)

Application Number Title Priority Date Filing Date
ES423218A Expired ES423218A1 (es) 1973-03-13 1974-02-14 Perfeccionamientos en un reloj electrico.

Country Status (7)

Country Link
US (1) US3881309A (OSRAM)
JP (1) JPS49122769A (OSRAM)
DE (1) DE2404628A1 (OSRAM)
ES (1) ES423218A1 (OSRAM)
FR (1) FR2221758B1 (OSRAM)
IT (1) IT1002950B (OSRAM)
NL (1) NL7403395A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008566A (en) * 1975-11-10 1977-02-22 Mcclintock Richard D Electronic watch generator
EP1842149A1 (en) * 2005-01-18 2007-10-10 Nxp B.V. Tamper-resistant time reference and apparatus using same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582656A (en) * 1968-03-21 1971-06-01 Bulova Watch Co Inc Time base combining radioactive source and solid-state detector
CH521625A (de) * 1968-04-17 1971-11-30 Baumgartner Freres Sa Mittels Kernenergie betriebener Zeitmesser
CH511476A (de) * 1968-10-08 1971-03-15 Proctor Ets Vorrichtung zum Erzeugen von periodischen, mechanischen Schwingungen in einem Uhrwerk
US3609957A (en) * 1969-03-27 1971-10-05 Gen Time Corp Drive arrangement for timekeeping system
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

Also Published As

Publication number Publication date
NL7403395A (OSRAM) 1974-09-17
FR2221758A1 (OSRAM) 1974-10-11
JPS49122769A (OSRAM) 1974-11-25
US3881309A (en) 1975-05-06
DE2404628A1 (de) 1974-10-03
IT1002950B (it) 1976-05-20
FR2221758B1 (OSRAM) 1976-06-25

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