IT1091439B - Procedimento e sistema di modulazione e demodulazione per trasmissione numerica - Google Patents

Procedimento e sistema di modulazione e demodulazione per trasmissione numerica

Info

Publication number
IT1091439B
IT1091439B IT6927777A IT6927777A IT1091439B IT 1091439 B IT1091439 B IT 1091439B IT 6927777 A IT6927777 A IT 6927777A IT 6927777 A IT6927777 A IT 6927777A IT 1091439 B IT1091439 B IT 1091439B
Authority
IT
Italy
Prior art keywords
modulation
signal
optic transmission
patterns per
fibre
Prior art date
Application number
IT6927777A
Other languages
English (en)
Inventor
Renato Dogliotti
Giancarlo Pirani
Original Assignee
Studi E Lab Telcomunicazioni S
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 Studi E Lab Telcomunicazioni S filed Critical Studi E Lab Telcomunicazioni S
Priority to IT6927777A priority Critical patent/IT1091439B/it
Priority to FR7828450A priority patent/FR2406345A1/fr
Priority to US05/948,870 priority patent/US4201909A/en
Priority to JP12211078A priority patent/JPS5461815A/ja
Priority to GB7839673A priority patent/GB2006429B/en
Priority to CA312,989A priority patent/CA1107822A/en
Priority to DE2844293A priority patent/DE2844293C3/de
Priority to NLAANVRAGE7810272,A priority patent/NL182268C/xx
Application granted granted Critical
Publication of IT1091439B publication Critical patent/IT1091439B/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
    • H04L25/4906—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 binary codes
    • H04L25/4908—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 binary codes using mBnB codes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Dc Digital Transmission (AREA)
  • Light Guides In General And Applications Therefor (AREA)
IT6927777A 1977-10-13 1977-10-13 Procedimento e sistema di modulazione e demodulazione per trasmissione numerica IT1091439B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT6927777A IT1091439B (it) 1977-10-13 1977-10-13 Procedimento e sistema di modulazione e demodulazione per trasmissione numerica
FR7828450A FR2406345A1 (fr) 1977-10-13 1978-10-05 Systeme et procede de modulation-demodulation pour transmission numerique par fibres optiques
US05/948,870 US4201909A (en) 1977-10-13 1978-10-05 Data-transmission system and method using fiber-optical transmission
JP12211078A JPS5461815A (en) 1977-10-13 1978-10-05 Method of and device for modulating and demodulating optical fiber digital transmission
GB7839673A GB2006429B (en) 1977-10-13 1978-10-06 System for and method of modulation and demodulation of light signals for data transmission via optical fibres
CA312,989A CA1107822A (en) 1977-10-13 1978-10-10 System and method of modulation and demodulation for optical fibre digital transmission
DE2844293A DE2844293C3 (de) 1977-10-13 1978-10-11 Verfahren und System der Modulation und Demodulation zur Digitalsignalübertragung
NLAANVRAGE7810272,A NL182268C (nl) 1977-10-13 1978-10-12 Signaaloverdrachtstelsel met een in de vorm van een optische vezel uitgevoerde overdrachtsweg.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6927777A IT1091439B (it) 1977-10-13 1977-10-13 Procedimento e sistema di modulazione e demodulazione per trasmissione numerica

Publications (1)

Publication Number Publication Date
IT1091439B true IT1091439B (it) 1985-07-06

Family

ID=11311740

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6927777A IT1091439B (it) 1977-10-13 1977-10-13 Procedimento e sistema di modulazione e demodulazione per trasmissione numerica

Country Status (8)

Country Link
US (1) US4201909A (it)
JP (1) JPS5461815A (it)
CA (1) CA1107822A (it)
DE (1) DE2844293C3 (it)
FR (1) FR2406345A1 (it)
GB (1) GB2006429B (it)
IT (1) IT1091439B (it)
NL (1) NL182268C (it)

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EP0018142B1 (en) * 1979-04-17 1982-12-29 Gec-Marconi Limited Data transmission systems
DE2944459C2 (de) * 1979-11-03 1984-04-26 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zum Übertragen von Bipolarsignalen mittels eines optischen Senders
US4249266A (en) * 1979-11-06 1981-02-03 Perkins Research & Mfg. Co., Inc. Fiber optics communication system
JPS57164662A (en) * 1981-04-03 1982-10-09 Hitachi Ltd Compression system for multilevel signal
DE3117221A1 (de) * 1981-04-30 1983-02-03 Siemens AG, 1000 Berlin und 8000 München Umsetzung von binaeren signalen fuer lichtwellenleiteruebertragungssysteme
US4918689A (en) * 1985-10-10 1990-04-17 Bell Communications Research, Inc. Asynchronous communication system
JPH01174257U (it) * 1988-05-31 1989-12-11
GB2235076B (en) * 1989-08-17 1994-05-04 Asahi Optical Co Ltd Camera data communication method and camera
FR2652215B1 (fr) * 1989-09-19 1994-06-10 France Etat Procede de codage d'un signal numerique, codeur et decodeur pour la mise en óoeuvre de ce procede, procede de regeneration et regenerateur correspondant.
JPH0424814U (it) * 1990-06-22 1992-02-27
US5969839A (en) * 1995-07-10 1999-10-19 Fuji Electric Co., Ltd. Optical communications device
US5825823A (en) * 1997-06-06 1998-10-20 General Datacomm, Inc. PCM channel diagnosis
EP1131927A1 (de) * 1998-11-16 2001-09-12 Siemens Aktiengesellschaft Verfahren zum einstellen einer strahlungsleistung in einem sender
US7173551B2 (en) * 2000-12-21 2007-02-06 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
US7307569B2 (en) * 2001-03-29 2007-12-11 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
US7149256B2 (en) * 2001-03-29 2006-12-12 Quellan, Inc. Multilevel pulse position modulation for efficient fiber optic communication
IL158211A0 (en) * 2001-04-04 2004-05-12 Quellan Inc Method and system for decoding multilevel signals
WO2002091565A2 (en) * 2001-05-04 2002-11-14 Ok-Sang Jin Signal amplifying method, signal amplifier and devices related therewith
AU2003211094A1 (en) * 2002-02-15 2003-09-09 Quellan, Inc. Multi-level signal clock recovery technique
US8639127B2 (en) * 2002-03-06 2014-01-28 Alcatel Lucent Method and apparatus for improved jitter tolerance
US7035361B2 (en) * 2002-07-15 2006-04-25 Quellan, Inc. Adaptive noise filtering and equalization for optimal high speed multilevel signal decoding
WO2004045078A2 (en) * 2002-11-12 2004-05-27 Quellan, Inc. High-speed analog-to-digital conversion with improved robustness to timing uncertainty
SG112880A1 (en) * 2003-05-21 2005-07-28 Sony Corp Method and apparatus for modulating uwb signals
US7804760B2 (en) * 2003-08-07 2010-09-28 Quellan, Inc. Method and system for signal emulation
GB2421674B (en) * 2003-08-07 2006-11-15 Quellan Inc Method and system for crosstalk cancellation
JP4510832B2 (ja) * 2003-11-17 2010-07-28 ケラン インコーポレイテッド アンテナ干渉消去のための方法およびシステム
US7616700B2 (en) * 2003-12-22 2009-11-10 Quellan, Inc. Method and system for slicing a communication signal
US7725079B2 (en) * 2004-12-14 2010-05-25 Quellan, Inc. Method and system for automatic control in an interference cancellation device
US7522883B2 (en) * 2004-12-14 2009-04-21 Quellan, Inc. Method and system for reducing signal interference
US7551670B2 (en) * 2005-07-15 2009-06-23 Git Japan, Inc. UWB communication device and UWB communication method
DE112007001045B4 (de) * 2006-04-26 2019-05-16 Intersil Americas LLC Verfahren und System zur Reduzierung von Strahlungs-Emissionen aus einem Kommunikationskanal
EP2434648A1 (de) * 2010-09-25 2012-03-28 ATLAS Elektronik GmbH Codierer und Decodierer, Codierverfahren und Decodierverfahren sowie System aus Codierer und Decodierer
JP6741497B2 (ja) 2016-07-01 2020-08-19 ラピスセミコンダクタ株式会社 信号変換装置、処理装置、通信システムおよび信号変換方法
CN106130637B (zh) * 2016-07-26 2018-06-01 桂林电子科技大学 一种基于led的可见光通信系统和方法
US11463288B2 (en) 2021-06-14 2022-10-04 Ultralogic 6G, Llc Amplitude-variation encoding for high-density 5G/6G modulation

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US2865018A (en) * 1954-06-25 1958-12-16 Raytheon Mfg Co Intelligence transmission
US3281806A (en) * 1962-12-21 1966-10-25 Honeywell Inc Pulse width modulation representation of paired binary digits
US4103234A (en) * 1967-11-24 1978-07-25 General Dynamics Corp. System for transmission storage and/or multiplexing of information
US3792454A (en) * 1972-01-03 1974-02-12 Honeywell Inf Systems Magnetic strorage system using alternate codes to reduce write current bias
US3920898A (en) * 1974-05-30 1975-11-18 Xerox Corp Non-synchronous duobinary encoding
US3993862A (en) * 1974-07-05 1976-11-23 Lawrence Karr Data compression
DE2530812C3 (de) * 1975-07-10 1988-07-07 Loewe Opta Gmbh, 8640 Kronach Digitales Impulsübertragungsverfahren für eine Infrarot-Fernbedienung
JPS5261424A (en) * 1975-11-17 1977-05-20 Olympus Optical Co Ltd Encode system
US4008390A (en) * 1976-03-15 1977-02-15 Bell Telephone Laboratories, Incorporated Optical pulse transmission system
FR2361024A1 (fr) * 1976-08-04 1978-03-03 Cit Alcatel Procede de codage par transitions d'informations binaires et dispositifs de codage et de decodage correspondants

Also Published As

Publication number Publication date
DE2844293B2 (it) 1980-08-21
NL182268C (nl) 1988-02-01
FR2406345A1 (fr) 1979-05-11
NL182268B (nl) 1987-09-01
DE2844293C3 (de) 1981-08-27
GB2006429A (en) 1979-05-02
NL7810272A (nl) 1979-04-18
FR2406345B1 (it) 1983-07-22
US4201909A (en) 1980-05-06
JPS5461815A (en) 1979-05-18
JPS6115624B2 (it) 1986-04-25
DE2844293A1 (de) 1979-04-19
CA1107822A (en) 1981-08-25
GB2006429B (en) 1982-03-24

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