IT8621237A0 - Apparecchiatura per regolare un equalizzatore compensante la distorsione di un segnale portante modulato comprendente segnali componenti ed un inviluppo di segnale variabile nel tempo. - Google Patents

Apparecchiatura per regolare un equalizzatore compensante la distorsione di un segnale portante modulato comprendente segnali componenti ed un inviluppo di segnale variabile nel tempo.

Info

Publication number
IT8621237A0
IT8621237A0 IT8621237A IT2123786A IT8621237A0 IT 8621237 A0 IT8621237 A0 IT 8621237A0 IT 8621237 A IT8621237 A IT 8621237A IT 2123786 A IT2123786 A IT 2123786A IT 8621237 A0 IT8621237 A0 IT 8621237A0
Authority
IT
Italy
Prior art keywords
distortion
adjusting
equipment
time
modulated carrier
Prior art date
Application number
IT8621237A
Other languages
English (en)
Other versions
IT1213458B (it
Inventor
Peter Dimitrios Karabinis
Original Assignee
American Telephone & Telegraph
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 American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of IT8621237A0 publication Critical patent/IT8621237A0/it
Application granted granted Critical
Publication of IT1213458B publication Critical patent/IT1213458B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
IT8621237A 1985-07-25 1986-07-23 Apparecchiatura per regolare un equalizzatore compensante la distorsione di un segnale portante modulato comprendente segnali componenti ed un inviluppo di segnale variabile nel tempo. IT1213458B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/758,697 US4635276A (en) 1985-07-25 1985-07-25 Asynchronous and non-data decision directed equalizer adjustment

Publications (2)

Publication Number Publication Date
IT8621237A0 true IT8621237A0 (it) 1986-07-23
IT1213458B IT1213458B (it) 1989-12-20

Family

ID=25052734

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8621237A IT1213458B (it) 1985-07-25 1986-07-23 Apparecchiatura per regolare un equalizzatore compensante la distorsione di un segnale portante modulato comprendente segnali componenti ed un inviluppo di segnale variabile nel tempo.

Country Status (4)

Country Link
US (1) US4635276A (it)
JP (1) JP2682617B2 (it)
CA (1) CA1250910A (it)
IT (1) IT1213458B (it)

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US4759036A (en) * 1987-03-02 1988-07-19 American Telephone And Telegraph Company Decision-directed control circuit
US4788652A (en) * 1987-03-26 1988-11-29 Unisys Corporation I-Q channel adaptive line enhancer
FI881007A0 (fi) * 1988-03-04 1988-03-04 Teuvo Kohonen Foerfarande foer adaptiv avlaesning av kvantiserade signaler.
US4856031A (en) * 1988-04-28 1989-08-08 General Datacomm, Inc. Adaptive multiharmonic phase jitter compensation
JPH065822B2 (ja) * 1989-01-19 1994-01-19 日本電気株式会社 並列処理形トランスバーサル等化器
SE465245B (sv) * 1989-12-22 1991-08-12 Ericsson Telefon Ab L M Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser
EP0483439B1 (en) * 1990-10-30 1995-06-28 International Business Machines Corporation Self-training adaptive equalization method and apparatus
US5420884A (en) * 1991-04-11 1995-05-30 Canon Kabushiki Kaisha Automatic equalizer
FR2679721B1 (fr) * 1991-07-22 1993-09-24 Alcatel Radiotelephone Procede d'egalisation adaptative reduisant l'interference intersymbole, et dispositif de reception et application correspondants.
US5249205A (en) * 1991-09-03 1993-09-28 General Electric Company Order recursive lattice decision feedback equalization for digital cellular radio
US5477479A (en) * 1993-03-08 1995-12-19 Nkk Corporation Multiplying system having multi-stages for processing a digital signal based on the Booth's algorithm
US5414732A (en) * 1993-05-17 1995-05-09 Loral Aerospace Corp. Adaptive equalizer and method for operation at high symbol rates
US5432725A (en) * 1993-12-15 1995-07-11 The United States Of America As Represented By The Secretary Of The Navy Self-adapting filter
NO944905L (no) * 1993-12-21 1995-06-22 Nec Corp Senderanordning for mobilt satelittkommunikasjonsutstyr
US5838740A (en) * 1996-04-17 1998-11-17 Motorola, Inc. Crosspole interference canceling receiver for signals with unrelated baud rates
US6073014A (en) * 1997-09-04 2000-06-06 Motorola, Inc. Method and system for dynamic group radio using existing telephony infrastructure
US6546063B1 (en) 1998-02-10 2003-04-08 Agere Systems Inc. Asynchronous clock for adaptive equalization
US6038266A (en) * 1998-09-30 2000-03-14 Lucent Technologies, Inc. Mixed mode adaptive analog receive architecture for data communications
US6944244B2 (en) * 2001-09-18 2005-09-13 Thomson Licensing S.A. Mechanism for OFDM equalizer tap initialization using an adaptive algorithm
US7315575B2 (en) * 2004-03-08 2008-01-01 Nortel Networks Limited Equalization strategy for dual-polarization optical transport system
US7580454B2 (en) * 2004-07-14 2009-08-25 Fundacion Tarpuy Multidimensional decision-directed trained adaptive equalization
US7623797B2 (en) * 2004-07-14 2009-11-24 Fundacion Tarpuy Compensating impairments of optical channel using adaptive equalization
US8041233B2 (en) * 2004-07-14 2011-10-18 Fundación Tarpuy Adaptive equalization in coherent fiber optic communication
USRE47633E1 (en) 2005-06-22 2019-10-01 Odyssey Wireless Inc. Systems/methods of conducting a financial transaction using a smartphone
US8670493B2 (en) 2005-06-22 2014-03-11 Eices Research, Inc. Systems and/or methods of increased privacy wireless communications
US8462860B2 (en) * 2008-07-07 2013-06-11 Eices Research, Inc. Increased capacity communications systems, methods and/or devices
US7876845B2 (en) * 2005-06-22 2011-01-25 Eices Research, Inc. Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility
US8233554B2 (en) 2010-03-29 2012-07-31 Eices Research, Inc. Increased capacity communications for OFDM-based wireless communications systems/methods/devices
US8005368B2 (en) 2007-12-05 2011-08-23 Ciena Corporation Signal equalizer in a coherent optical receiver
US9374746B1 (en) 2008-07-07 2016-06-21 Odyssey Wireless, Inc. Systems/methods of spatial multiplexing
US9806790B2 (en) 2010-03-29 2017-10-31 Odyssey Wireless, Inc. Systems/methods of spectrally efficient communications
US9596035B2 (en) 2011-10-05 2017-03-14 Ciena Corporation Minimum variance carrier recovery with increased phase noise tolerance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181593B1 (it) * 1972-04-26 1974-10-18 Ibm France
FR2216715B1 (it) * 1973-01-31 1976-06-11 Ibm France
US4097806A (en) * 1976-03-31 1978-06-27 Xerox Corporation Adaptive equalizer with improved distortion analysis
FR2428946A1 (fr) * 1978-06-13 1980-01-11 Ibm France Procede et dispositif pour initialiser un egaliseur adaptatif a partir d'un signal de donnees inconnu dans un systeme de transmission utilisant la modulation d'amplitude en quadrature
US4343041A (en) * 1980-04-03 1982-08-03 Codex Corporation Modem circuitry
US4545060A (en) * 1983-09-19 1985-10-01 Northern Telecom Limited Decision feedback adaptive equalizer acting on zero states following a non-zero state

Also Published As

Publication number Publication date
US4635276A (en) 1987-01-06
CA1250910A (en) 1989-03-07
JP2682617B2 (ja) 1997-11-26
IT1213458B (it) 1989-12-20
JPS6297433A (ja) 1987-05-06

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970725