FR2438293B1 - - Google Patents

Info

Publication number
FR2438293B1
FR2438293B1 FR7923769A FR7923769A FR2438293B1 FR 2438293 B1 FR2438293 B1 FR 2438293B1 FR 7923769 A FR7923769 A FR 7923769A FR 7923769 A FR7923769 A FR 7923769A FR 2438293 B1 FR2438293 B1 FR 2438293B1
Authority
FR
France
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
FR7923769A
Other versions
FR2438293A1 (fr
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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of FR2438293A1 publication Critical patent/FR2438293A1/fr
Application granted granted Critical
Publication of FR2438293B1 publication Critical patent/FR2438293B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06216—Pulse modulation or generation
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)
  • Amplifiers (AREA)
  • Optical Communication System (AREA)
  • Led Devices (AREA)
  • Liquid Crystal Display Device Control (AREA)
FR7923769A 1978-10-05 1979-09-25 Procede et circuit de pilotage pour dispositifs non lineaires a seuil Granted FR2438293A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69299/78A IT1108119B (it) 1978-10-05 1978-10-05 Procedimento e circuito di pilotaggio per dispositivo non lineari a soglia

Publications (2)

Publication Number Publication Date
FR2438293A1 FR2438293A1 (fr) 1980-04-30
FR2438293B1 true FR2438293B1 (fr) 1983-04-01

Family

ID=11311790

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923769A Granted FR2438293A1 (fr) 1978-10-05 1979-09-25 Procede et circuit de pilotage pour dispositifs non lineaires a seuil

Country Status (19)

Country Link
US (1) US4277755A (fr)
JP (1) JPS608640B2 (fr)
AT (1) AT375226B (fr)
AU (1) AU525230B2 (fr)
BE (1) BE878965A (fr)
BR (1) BR7906178A (fr)
CA (1) CA1133591A (fr)
CH (1) CH635465A5 (fr)
DE (1) DE2940159C2 (fr)
DK (1) DK151670C (fr)
ES (1) ES483017A1 (fr)
FR (1) FR2438293A1 (fr)
GB (1) GB2036491B (fr)
IL (1) IL58296A (fr)
IT (1) IT1108119B (fr)
NL (1) NL177166C (fr)
NO (1) NO153445C (fr)
SE (1) SE438583B (fr)
ZA (1) ZA795061B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385208A (en) * 1981-04-15 1983-05-24 Bell Telephone Laboratories, Incorporated Multifrequency receiver
DE3219668A1 (de) * 1982-05-26 1983-12-01 Eckardt Ag, 7000 Stuttgart Schaltung zur ansteuerung der lichtemittierenden diode eines optokopplers
US4598198A (en) * 1984-05-21 1986-07-01 Banner Engineering Corp. Automatic power control for modulated LED photoelectric devices
DE3431996A1 (de) * 1984-08-31 1986-03-13 Fa. Carl Zeiss, 7920 Heidenheim Stromversorgung fuer strahlungsquellen von frequenz-analogen optischen sensoren
US4965444A (en) * 1988-08-17 1990-10-23 Ransburg Corporation Automatic gain control fiber optica-to-electrical transceiver
JPH06103830B2 (ja) * 1989-01-19 1994-12-14 浜松ホトニクス株式会社 光フリップフロップ回路
US7164320B2 (en) * 2004-12-10 2007-01-16 Sigmatel, Inc. Current threshold circuit
US10141987B2 (en) * 2015-05-15 2018-11-27 Lg Electronics Inc. Method for feeding back reference signal information in multi-antenna wireless communication system and apparatus therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB709715A (en) * 1950-12-06 1954-06-02 Emi Ltd Improvements relating to non-linear electrical circuits
US2857481A (en) * 1954-08-06 1958-10-21 Bendix Aviat Corp Automatic gain control system
US4019048A (en) * 1976-03-22 1977-04-19 Bell Telephone Laboratories, Incorporated Regenerator for an optical transmission system
US4009385A (en) * 1976-03-22 1977-02-22 Bell Telephone Laboratories, Incorporated Laser control circuit
JPS5851435B2 (ja) * 1976-05-25 1983-11-16 富士通株式会社 発光素子の駆動方式
GB1559511A (en) * 1976-09-14 1980-01-23 Post Office Injection lasers
GB1563944A (en) * 1977-03-29 1980-04-02 Post Office Imjection lasers
US4149072A (en) * 1977-08-05 1979-04-10 Minnesota Mining And Manufacturing Company System for flat ribbon optical fiber data communications link

Also Published As

Publication number Publication date
SE438583B (sv) 1985-04-22
FR2438293A1 (fr) 1980-04-30
DE2940159C2 (de) 1985-08-01
AT375226B (de) 1984-07-10
ZA795061B (en) 1980-09-24
JPS608640B2 (ja) 1985-03-04
GB2036491B (en) 1982-12-15
IL58296A0 (en) 1979-12-30
ATA645479A (de) 1983-11-15
BE878965A (fr) 1980-01-16
NO153445B (no) 1985-12-09
SE7908010L (sv) 1980-04-06
DE2940159A1 (de) 1980-04-10
ES483017A1 (es) 1980-03-01
US4277755A (en) 1981-07-07
CH635465A5 (it) 1983-03-31
GB2036491A (en) 1980-06-25
AU5115279A (en) 1980-04-17
DK415879A (da) 1980-04-06
IL58296A (en) 1982-08-31
IT1108119B (it) 1985-12-02
IT7869299A0 (it) 1978-10-05
NL7907277A (nl) 1980-04-09
NO793173L (no) 1980-04-09
JPS5558585A (en) 1980-05-01
AU525230B2 (en) 1982-10-28
DK151670C (da) 1988-05-30
BR7906178A (pt) 1980-07-15
NO153445C (no) 1986-03-19
DK151670B (da) 1987-12-21
CA1133591A (fr) 1982-10-12
NL177166C (nl) 1985-08-01

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Legal Events

Date Code Title Description
ST Notification of lapse