IT1117071B - Dispositivo per trasmettere segnali multilivello su fibra ottica - Google Patents

Dispositivo per trasmettere segnali multilivello su fibra ottica

Info

Publication number
IT1117071B
IT1117071B IT68972/77A IT6897277A IT1117071B IT 1117071 B IT1117071 B IT 1117071B IT 68972/77 A IT68972/77 A IT 68972/77A IT 6897277 A IT6897277 A IT 6897277A IT 1117071 B IT1117071 B IT 1117071B
Authority
IT
Italy
Prior art keywords
optical fiber
level signals
transmit multi
transmit
signals
Prior art date
Application number
IT68972/77A
Other languages
English (en)
Inventor
Giovanni Tamburelli
Original Assignee
Cselt Centro Studi Lab Telecom
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 Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT68972/77A priority Critical patent/IT1117071B/it
Priority to FR7824536A priority patent/FR2402257A1/fr
Priority to JP10450178A priority patent/JPS5448102A/ja
Priority to CA310,215A priority patent/CA1098977A/en
Priority to US05/937,816 priority patent/US4211929A/en
Priority to GB7835043A priority patent/GB2003600B/en
Priority to DE2838299A priority patent/DE2838299C3/de
Priority to NL7808990A priority patent/NL7808990A/xx
Application granted granted Critical
Publication of IT1117071B publication Critical patent/IT1117071B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/504—Laser transmitters using direct modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H04B10/541—Digital intensity or amplitude modulation
IT68972/77A 1977-09-05 1977-09-05 Dispositivo per trasmettere segnali multilivello su fibra ottica IT1117071B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT68972/77A IT1117071B (it) 1977-09-05 1977-09-05 Dispositivo per trasmettere segnali multilivello su fibra ottica
FR7824536A FR2402257A1 (fr) 1977-09-05 1978-08-24 Dispositif pour la transmission de signaux multiniveau au moyen de fibres optiques
JP10450178A JPS5448102A (en) 1977-09-05 1978-08-29 Optical fiber multiilevel signal transmitter
CA310,215A CA1098977A (en) 1977-09-05 1978-08-29 Apparatus for transmitting multilevel signals on optical fibres
US05/937,816 US4211929A (en) 1977-09-05 1978-08-29 Fiber-optical system for transmitting multilevel signals
GB7835043A GB2003600B (en) 1977-09-05 1978-08-30 Device for transmitting multilevel signals through optical fibres and its use
DE2838299A DE2838299C3 (de) 1977-09-05 1978-09-01 Verfahren und Vorrichtung zur sendeseitigen Aufbereitung eines elektrischen Digitalsignals für die optische Faserleitungsübertragung
NL7808990A NL7808990A (nl) 1977-09-05 1978-09-01 Inrichting voor het door stralingsgeleiders overdragen van een aantal verschillende signaalpeilwaarden.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68972/77A IT1117071B (it) 1977-09-05 1977-09-05 Dispositivo per trasmettere segnali multilivello su fibra ottica

Publications (1)

Publication Number Publication Date
IT1117071B true IT1117071B (it) 1986-02-10

Family

ID=11311048

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68972/77A IT1117071B (it) 1977-09-05 1977-09-05 Dispositivo per trasmettere segnali multilivello su fibra ottica

Country Status (8)

Country Link
US (1) US4211929A (it)
JP (1) JPS5448102A (it)
CA (1) CA1098977A (it)
DE (1) DE2838299C3 (it)
FR (1) FR2402257A1 (it)
GB (1) GB2003600B (it)
IT (1) IT1117071B (it)
NL (1) NL7808990A (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307469A (en) * 1980-04-18 1981-12-22 Harris Corporation Injection laser diode digital transmitter having signal quality monitoring arrangement
JPS5737941A (en) * 1980-08-13 1982-03-02 Fujitsu Ltd Optical output circuit
US4370745A (en) * 1980-11-14 1983-01-25 Bell Telephone Laboratories, Incorporated Fail-safe transmission system
DE3127379A1 (de) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Optisches netz zur uebertragung von sensordaten
FR2526554B1 (fr) * 1982-05-06 1985-06-07 Telecommunications Sa Procede de regulation de moyens emetteurs d'informations lumineuses et le systeme de mise en oeuvre
US4523099A (en) * 1983-04-29 1985-06-11 Lavine Michael K Device for transmitting analog sensor data via fiber optics
DE3317027C2 (de) * 1983-05-10 1985-03-21 Hewlett-Packard Gmbh, 7030 Boeblingen Schaltungsanordnung zur Umwandlung eines elektrischen Einganssignales in ein optisches Ausgangssignal
JPH01223837A (ja) * 1988-03-03 1989-09-06 Nec Corp 光多値送信機
US4991229A (en) * 1989-04-03 1991-02-05 Honeywell Inc. Optical transmitter power measurement and control
JPH0339576U (it) * 1989-08-28 1991-04-16
JPH04132428A (ja) * 1990-09-25 1992-05-06 Canon Inc 光通信方式及びそこに用いられる受信装置
US5280500A (en) * 1991-10-10 1994-01-18 Crescendo Communications, Inc. Method and apparatus for multilevel encoding for a local area network
US5423220A (en) * 1993-01-29 1995-06-13 Parallel Design Ultrasonic transducer array and manufacturing method thereof
US5335239A (en) * 1993-03-17 1994-08-02 Eastman Kodak Company Thermal compensation for laser diodes using active feedback
US5753903A (en) * 1996-11-05 1998-05-19 Medar, Inc. Method and system for controlling light intensity in a machine vision system
GB2366677B (en) * 2000-09-09 2004-05-19 Ibm Optical amplitude modulator
DE60045385D1 (de) 2000-10-13 2011-01-27 Mitsubishi Electric Corp Verfahren und einrichtung zur optischen übertragung
JP4744720B2 (ja) * 2001-05-08 2011-08-10 三菱電機株式会社 多値変調装置
US20030235415A1 (en) * 2002-06-21 2003-12-25 Peters Frank H. Optical communication devices and optical communication methods
JP2008067239A (ja) * 2006-09-08 2008-03-21 Nippon Telegr & Teleph Corp <Ntt> 光伝送方法、光伝送システム、および光送信器
JP4849632B2 (ja) * 2007-06-18 2012-01-11 日本電信電話株式会社 光伝送方法、符号化方法、光伝送システムおよび光送信装置
DE102007043255B4 (de) * 2007-09-11 2016-09-22 Siemens Aktiengesellschaft Verfahren und Anordnung zur Aussendung von Daten
JP4925334B2 (ja) * 2007-11-13 2012-04-25 日本電信電話株式会社 光伝送方式

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1238658A (it) * 1967-06-13 1971-07-07
US3573766A (en) * 1969-02-17 1971-04-06 Radiation Inc Apparatus and process for recording binary data in compact form
IL38104A (en) * 1971-02-24 1974-01-14 Hughes Aircraft Co Adaptive power redistribution systems
DE2218431C3 (de) * 1972-04-17 1986-10-23 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Kompensation des nichtlinearen Zusammenhanges zwischen angelegter Spannung und Lichtausstrahlung bei Lumineszenzdioden
US3851167A (en) * 1972-12-11 1974-11-26 Itt Light-guide communication system with image intensifier repeater elements
US3809908A (en) * 1973-06-29 1974-05-07 Itt Electro-optical transmission line

Also Published As

Publication number Publication date
DE2838299A1 (de) 1979-03-08
DE2838299B2 (de) 1980-09-11
JPS5750376B2 (it) 1982-10-27
FR2402257A1 (fr) 1979-03-30
GB2003600B (en) 1982-01-27
JPS5448102A (en) 1979-04-16
NL7808990A (nl) 1979-03-07
DE2838299C3 (de) 1981-09-03
CA1098977A (en) 1981-04-07
US4211929A (en) 1980-07-08
FR2402257B1 (it) 1982-07-02
GB2003600A (en) 1979-03-14

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