AR226453A1 - Disposicion de circuitos para la excitacion de una pluralidad de elementos indicadores optoelectronicos - Google Patents

Disposicion de circuitos para la excitacion de una pluralidad de elementos indicadores optoelectronicos

Info

Publication number
AR226453A1
AR226453A1 AR284970A AR28497081A AR226453A1 AR 226453 A1 AR226453 A1 AR 226453A1 AR 284970 A AR284970 A AR 284970A AR 28497081 A AR28497081 A AR 28497081A AR 226453 A1 AR226453 A1 AR 226453A1
Authority
AR
Argentina
Prior art keywords
disposition
excitation
circuits
indicator elements
optoelectronic indicator
Prior art date
Application number
AR284970A
Other languages
English (en)
Spanish (es)
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AR226453A1 publication Critical patent/AR226453A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/62—Keyboard equipment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Led Devices (AREA)
  • Telephone Set Structure (AREA)
  • Telephone Function (AREA)
  • Optical Communication System (AREA)
AR284970A 1980-04-17 1981-04-14 Disposicion de circuitos para la excitacion de una pluralidad de elementos indicadores optoelectronicos AR226453A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3014845A DE3014845C2 (de) 1980-04-17 1980-04-17 Schaltungsanordnung zur Ansteuerung von, insbesondere Endgeräten in Fernsprechanlagen zugehörigen optoelektronischen Anzeigeelementen in Matrixanordnung

Publications (1)

Publication Number Publication Date
AR226453A1 true AR226453A1 (es) 1982-07-15

Family

ID=6100330

Family Applications (1)

Application Number Title Priority Date Filing Date
AR284970A AR226453A1 (es) 1980-04-17 1981-04-14 Disposicion de circuitos para la excitacion de una pluralidad de elementos indicadores optoelectronicos

Country Status (14)

Country Link
US (1) US4355308A (2)
EP (1) EP0038506A3 (2)
AR (1) AR226453A1 (2)
AU (1) AU524337B2 (2)
BR (1) BR8102345A (2)
CA (1) CA1198535A (2)
DE (1) DE3014845C2 (2)
DK (1) DK173681A (2)
ES (1) ES501449A0 (2)
FI (1) FI68921C (2)
GB (1) GB2074357B (2)
IN (1) IN151558B (2)
NO (1) NO811273L (2)
ZA (1) ZA812549B (2)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149555B (en) * 1983-11-10 1987-01-28 Standard Telephones Cables Ltd Improvements in liquid crystal displays
JP4409200B2 (ja) * 2003-04-16 2010-02-03 株式会社コマデン 表示用ｌｅｄの駆動回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1359826A (en) * 1971-08-26 1974-07-10 Marconi Co Ltd Electroluminescent display devices
US3872463A (en) * 1972-04-17 1975-03-18 James M Lapeyre Alphanumeric display system
US4045683A (en) * 1975-10-28 1977-08-30 Litton Systems, Inc. Drive circuit with constant current
US4198629A (en) * 1977-06-06 1980-04-15 General Electric Company Numerical display using plural light sources and having a reduced and substantially constant current requirement
DE2758551A1 (de) * 1977-12-23 1979-06-28 Elmeg Schaltungsanordnung zur steuerung von lichtemittierenden dioden (led)
JPS54134597A (en) * 1978-04-11 1979-10-19 Mitsubishi Electric Corp Display circuit

Also Published As

Publication number Publication date
EP0038506A3 (de) 1985-04-17
FI68921B (fi) 1985-07-31
EP0038506A2 (de) 1981-10-28
GB2074357B (en) 1983-12-21
IN151558B (2) 1983-05-21
AU524337B2 (en) 1982-09-09
ZA812549B (en) 1982-04-28
DE3014845C2 (de) 1982-05-27
ES8202972A1 (es) 1982-02-16
NO811273L (no) 1981-10-19
GB2074357A (en) 1981-10-28
FI68921C (fi) 1985-11-11
AU6960581A (en) 1981-10-22
US4355308A (en) 1982-10-19
DE3014845A1 (de) 1981-10-22
ES501449A0 (es) 1982-02-16
DK173681A (da) 1981-10-18
CA1198535A (en) 1985-12-24
BR8102345A (pt) 1981-12-22
FI811206L (fi) 1981-10-18

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