IT1068029B - Apparecchiatura per determinare i valori iniziali dei coefficienti di un euqalizzatore trasversale complesso - Google Patents

Apparecchiatura per determinare i valori iniziali dei coefficienti di un euqalizzatore trasversale complesso

Info

Publication number
IT1068029B
IT1068029B IT30068/76A IT3006876A IT1068029B IT 1068029 B IT1068029 B IT 1068029B IT 30068/76 A IT30068/76 A IT 30068/76A IT 3006876 A IT3006876 A IT 3006876A IT 1068029 B IT1068029 B IT 1068029B
Authority
IT
Italy
Prior art keywords
euqalizer
coefficients
equipment
initial values
complex transversal
Prior art date
Application number
IT30068/76A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1068029B publication Critical patent/IT1068029B/it

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters That Use Time-Delay Elements (AREA)
IT30068/76A 1975-12-30 1976-12-03 Apparecchiatura per determinare i valori iniziali dei coefficienti di un euqalizzatore trasversale complesso IT1068029B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7540417A FR2337465A1 (fr) 1975-12-30 1975-12-30 Procede et dispositif pour determiner les valeurs initiales des coefficients d'un egaliseur transversal complexe

Publications (1)

Publication Number Publication Date
IT1068029B true IT1068029B (it) 1985-03-21

Family

ID=9164451

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30068/76A IT1068029B (it) 1975-12-30 1976-12-03 Apparecchiatura per determinare i valori iniziali dei coefficienti di un euqalizzatore trasversale complesso

Country Status (7)

Country Link
US (1) US4089061A (it)
JP (1) JPS5283010A (it)
CA (1) CA1076262A (it)
DE (1) DE2657639C2 (it)
FR (1) FR2337465A1 (it)
GB (1) GB1535850A (it)
IT (1) IT1068029B (it)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358061A1 (fr) * 1976-07-08 1978-02-03 Ibm France Procede et dispositif d'egalisation utilisant la transformee de fourier
FR2454732A1 (fr) * 1979-04-17 1980-11-14 Ibm France Procede et dispositif pour initialiser un egaliseur adaptatif a partir d'un signal de donnees inconnu dans un systeme de transmission utilisant une modulation a double bande laterale-porteuses en quadrature
US4245345A (en) * 1979-09-14 1981-01-13 Bell Telephone Laboratories, Incorporated Timing acquisition in voiceband data sets
ZA805414B (en) * 1979-09-14 1981-08-26 Plessey Overseas Arrangements for data timing recovery from distorted signals for use in adaptive modems with multi-level coding
US4313202A (en) * 1980-04-03 1982-01-26 Codex Corporation Modem circuitry
US4344176A (en) * 1980-04-03 1982-08-10 Codex Corporation Time recovery circuitry in a modem receiver
JPS5752215A (en) * 1980-09-11 1982-03-27 Fujitsu Ltd Automatic equalizing system
US4430743A (en) 1980-11-17 1984-02-07 Nippon Electric Co., Ltd. Fast start-up system for transversal equalizers
FR2517905B1 (fr) * 1981-12-09 1985-11-29 Telecommunications Sa Dispositif d'initialisation pour annuleur d'echo et son application aux echos lointains
JPS58121838A (ja) * 1981-12-28 1983-07-20 Fujitsu Ltd 自動等化器
US4438521A (en) 1982-06-07 1984-03-20 Rca Corporation Automatically adaptive transversal filter
GB2127992B (en) * 1982-09-28 1986-04-16 Audim Sa Cross-correlator
GB2128456A (en) * 1982-10-01 1984-04-26 Standard Telephones Cables Ltd Improvements in or relating to data transmission and receiving systems
EP0130263B1 (fr) * 1983-06-30 1988-06-01 International Business Machines Corporation Procédé d'initialisation d'un filtre annuleur d'écho et système de communication utilisant ledit procédé
US4705229A (en) 1983-10-17 1987-11-10 Mounque Barazone Compact apparatus for laying paving fabric
US4756007A (en) * 1984-03-08 1988-07-05 Codex Corporation Adaptive communication rate modem
US4703357A (en) * 1985-12-24 1987-10-27 Rca Corporation Adaptive television deghosting system
US4987569A (en) * 1989-04-05 1991-01-22 Codex Corporation Fast training echo canceller
FI82337C (fi) * 1989-05-29 1991-02-11 Nokia Data Systems Foerfarande foer bestaemmande av grundvaerden foer en transversalekvalisators koefficienter.
DE4128713A1 (de) * 1991-08-29 1993-03-04 Daimler Benz Ag Verfahren und anordnung zur messung der traegerfrequenzablage in einem mehrkanaluebertragungssystem
FR2698226B1 (fr) * 1992-11-18 1995-01-13 Alcatel Radiotelephone Séquence d'apprentissage pour l'estimation d'un canal de transmission et dispositif d'estimation correspondant.
US5450456A (en) * 1993-11-12 1995-09-12 Daimler Benz Ag Method and arrangement for measuring the carrier frequency deviation in a multi-channel transmission system
US5909426A (en) * 1997-03-31 1999-06-01 Rockwell Science Center, Inc. Orthogonal LMS algorithms for fast line echo canceler training
WO2002101939A2 (en) * 2001-06-08 2002-12-19 Broadcom Corporation Robust burst detection and acquisition system and method
US7512188B1 (en) * 2003-04-10 2009-03-31 Xilinx, Inc. Phase shift keying signaling for integrated circuits
ES2244305B1 (es) * 2003-12-17 2007-07-01 Vicente Diaz Fuente Dispositivo y metodo para la ecualizacion de la distorsion del canal de transmision en sistemas de comunicacion por multiplexacion en el tiempo mediante conjuntos de secuencias complementarias.
US8459372B1 (en) * 2008-09-11 2013-06-11 Wayne Branson Collins Voltage sensing drill with automatic shut-off

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715666A (en) * 1971-03-30 1973-02-06 Bell Telephone Labor Inc Fast start-up system for transversal equalizers
US3723911A (en) * 1971-09-13 1973-03-27 Codex Corp Training adaptive linear filters
DE2416058B2 (de) * 1973-07-12 1980-12-18 International Business Machines Corp., Armonk, N.Y. (V.St.A.) Verfahren und Schaltungsanordnungen zur Entzerrung eines quadraturmodulierten Datensignals
JPS5146047A (it) * 1974-10-18 1976-04-20 Nippon Electric Co
FR2296322A1 (fr) * 1974-12-27 1976-07-23 Ibm France Systeme de detection de donnees numeriques transmises par modulation d'une porteuse
FR2423929A1 (fr) * 1975-07-10 1979-11-16 Ibm France Procede et dispositif pour determiner rapidement les valeurs initiales des coefficients d'un egaliseur transversal
US3978407A (en) * 1975-07-23 1976-08-31 Codex Corporation Fast start-up adaptive equalizer communication system using two data transmission rates

Also Published As

Publication number Publication date
JPS5283010A (en) 1977-07-11
US4089061A (en) 1978-05-09
GB1535850A (en) 1978-12-13
CA1076262A (en) 1980-04-22
FR2337465A1 (fr) 1977-07-29
JPS5734691B2 (it) 1982-07-24
DE2657639A1 (de) 1977-07-14
FR2337465B1 (it) 1980-04-11
DE2657639C2 (de) 1983-04-07

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