CA1013437A - Automatic equalizing arrangement for a data transmission channel - Google Patents

Automatic equalizing arrangement for a data transmission channel

Info

Publication number
CA1013437A
CA1013437A CA194,606A CA194606A CA1013437A CA 1013437 A CA1013437 A CA 1013437A CA 194606 A CA194606 A CA 194606A CA 1013437 A CA1013437 A CA 1013437A
Authority
CA
Canada
Prior art keywords
data transmission
transmission channel
automatic equalizing
equalizing arrangement
arrangement
Prior art date
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
CA194,606A
Other languages
English (en)
Other versions
CA194606S (en
Inventor
Loic B.Y. Guidoux
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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
Priority claimed from FR7308476A external-priority patent/FR2318542A1/fr
Priority claimed from FR7323052A external-priority patent/FR2234718B2/fr
Application filed by Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Application granted granted Critical
Publication of CA1013437A publication Critical patent/CA1013437A/en
Expired legal-status Critical Current

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
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using blind adaptation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
CA194,606A 1973-03-09 1974-03-11 Automatic equalizing arrangement for a data transmission channel Expired CA1013437A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7308476A FR2318542A1 (fr) 1973-03-09 1973-03-09 Egaliseur autoadaptatif d'un canal de transmission
FR7323052A FR2234718B2 (sv) 1973-06-25 1973-06-25

Publications (1)

Publication Number Publication Date
CA1013437A true CA1013437A (en) 1977-07-05

Family

ID=26217609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA194,606A Expired CA1013437A (en) 1973-03-09 1974-03-11 Automatic equalizing arrangement for a data transmission channel

Country Status (7)

Country Link
US (1) US3868603A (sv)
JP (1) JPS5515891B2 (sv)
CA (1) CA1013437A (sv)
DE (1) DE2410881C3 (sv)
GB (1) GB1466678A (sv)
NL (1) NL171215C (sv)
SE (1) SE400004B (sv)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041418A (en) * 1973-01-05 1977-08-09 Siemens Aktiengesellschaft Equalizer for partial response signals
NL7405553A (nl) * 1974-04-25 1975-10-28 Philips Nv Inrichting voor automatische egalisatie.
JPS5152264A (sv) * 1974-09-11 1976-05-08 Sharp Kk
US3943468A (en) * 1974-10-29 1976-03-09 Bell Telephone Laboratories Incorporated Amplitude equalizer using mixing for error detection
FR2295649A1 (fr) * 1974-12-20 1976-07-16 Trt Telecom Radio Electr Egaliseur de ligne autoadaptatif pour systeme de transmission de donnees
US3947768A (en) * 1975-01-08 1976-03-30 International Business Machines Corporation Carrier-modulation data transmission equalizers
US4004226A (en) * 1975-07-23 1977-01-18 Codex Corporation QAM receiver having automatic adaptive equalizer
JPS5215247A (en) * 1975-07-28 1977-02-04 Nec Corp Automatic equalizer
JPS5270707A (en) * 1975-12-09 1977-06-13 Nec Corp Automatic phase control system
FR2370396A1 (fr) * 1976-11-09 1978-06-02 Cit Alcatel Ensemble d'egalisation autoadaptatif
US4398062A (en) * 1976-11-11 1983-08-09 Harris Corporation Apparatus for privacy transmission in system having bandwidth constraint
US4141072A (en) * 1976-12-28 1979-02-20 Xerox Corporation Frequency domain automatic equalizer using minimum mean square error correction criteria
FR2410917A1 (fr) * 1977-11-30 1979-06-29 Cit Alcatel Egaliseur autoadaptatif
US4181888A (en) * 1978-08-04 1980-01-01 Bell Telephone Laboratories, Incorporated Feedback nonlinear equalization of modulated data signals
US4213095A (en) * 1978-08-04 1980-07-15 Bell Telephone Laboratories, Incorporated Feedforward nonlinear equalization of modulated data signals
USRE31351E (en) * 1978-08-04 1983-08-16 Bell Telephone Laboratories, Incorporated Feedback nonlinear equalization of modulated data signals
US4263671A (en) * 1978-10-19 1981-04-21 Racal-Milgo, Inc. Sampling clock correction circuit
JPS5558612A (en) * 1978-10-26 1980-05-01 Kokusai Denshin Denwa Co Ltd <Kdd> Delay circuit
FR2455408B1 (fr) * 1979-04-27 1987-05-29 Cit Alcatel Procede de reduction des bruits de phase a la reception d'une transmission de donnees
FR2455406B1 (fr) * 1979-04-27 1987-05-29 Cit Alcatel Procede de compensation des bruits de phase a la reception d'une transmission de donnees
FR2468258B1 (fr) * 1979-10-19 1987-06-26 Cit Alcatel Circuit de correction des bruits de phase pour un systeme de transmission
DE3000856A1 (de) * 1980-01-11 1981-07-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Adaptive entzerrereinrichtung
FR2478914B1 (fr) * 1980-03-19 1986-01-31 Ibm France Procede et dispositif pour l'ajustement initial de l'horloge d'un recepteur de donnees synchrone
US4313202A (en) * 1980-04-03 1982-01-26 Codex Corporation Modem circuitry
US4344177A (en) * 1980-10-09 1982-08-10 Bell Telephone Laboratories, Incorporated Equalizer comprised of equalizer sections which include internal accumulation circuits
US4343759A (en) * 1980-10-10 1982-08-10 Bell Telephone Laboratories, Incorporated Equalizer section
DE3116266A1 (de) * 1981-04-24 1982-11-11 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zum entzerren eines datensignales
JPS59211313A (ja) * 1983-05-17 1984-11-30 Toshiba Corp 自動等化器
FR2556530B1 (fr) * 1983-10-28 1986-04-04 Telediffusion Fse Dispositif de correction d'echos, notamment pour systeme de diffusion de donnees
US4580176A (en) * 1983-11-21 1986-04-01 International Business Machines Corporation Adaptive equalization circuit for magnetic recording channels utilizing signal timing
FR2571566B1 (fr) * 1984-10-09 1987-01-23 Labo Electronique Physique Dispositif de reception de donnees numeriques comportant un dispositif de recuperation adaptative de rythme
JPS61102813A (ja) * 1984-10-25 1986-05-21 Hitachi Denshi Ltd 適応デイジタルフイルタ
JPS6211326A (ja) * 1985-07-09 1987-01-20 Hitachi Ltd 自動等化器再設定方式
FR2586877B1 (fr) * 1985-08-27 1993-05-14 Petit Jean P Dispositif egaliseur adaptatif pour installation de transmission de donnees numeriques.
US4696017A (en) * 1986-02-03 1987-09-22 E-Systems, Inc. Quadrature signal generator having digitally-controlled phase and amplitude correction
FR2606238B1 (fr) * 1986-10-31 1988-12-09 Trt Telecom Radio Electr Boucle a verrouillage de phase entierement numerique
JPS63224408A (ja) * 1987-03-13 1988-09-19 Fuji Xerox Co Ltd デイジタルフイルタシステム
US4899366A (en) * 1988-08-02 1990-02-06 International Business Machines Corporation Tap rotation n fractionally spaced equalizer to compensate for drift due to fixed sample rate
JPH03297228A (ja) * 1990-04-16 1991-12-27 Matsushita Electric Ind Co Ltd 適応等化器制御装置
US5481564A (en) * 1990-07-20 1996-01-02 Fujitsu Limited Received data adjusting device
JP3251023B2 (ja) * 1991-02-27 2002-01-28 日本電気株式会社 自動等化器
JPH04352523A (ja) * 1991-05-30 1992-12-07 Oki Electric Ind Co Ltd データ伝送復調器
US5268930A (en) * 1991-12-19 1993-12-07 Novatel Communications Ltd. Decision feedback equalizer
KR970000767B1 (ko) * 1994-01-18 1997-01-18 대우전자 주식회사 블라인드 등화기
KR960011739B1 (ko) * 1994-01-18 1996-08-30 대우전자 주식회사 실시간 계수 갱신값 추출장치를 구비한 등화기
KR100223757B1 (ko) * 1997-05-08 1999-10-15 김영환 고속 디지탈 통신용 시분할 등화기
US7289680B1 (en) 2003-07-23 2007-10-30 Cisco Technology, Inc. Methods and apparatus for minimizing requantization error
DE102011054614A1 (de) 2011-10-19 2013-04-25 Intel Mobile Communications GmbH Empfängerschaltung und Verfahren zum Betreiben einer Empfängerschaltung
US9679509B2 (en) * 2014-05-01 2017-06-13 Samsung Display Co., Ltd. Positive feedback enhanced switching equalizer with output pole tuning

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524169A (en) * 1967-06-05 1970-08-11 North American Rockwell Impulse response correction system
US3699321A (en) * 1971-04-01 1972-10-17 North American Rockwell Automatic adaptive equalizer implementation amenable to mos

Also Published As

Publication number Publication date
GB1466678A (en) 1977-03-09
JPS5048857A (sv) 1975-05-01
DE2410881C3 (de) 1980-09-25
NL7402923A (sv) 1974-09-11
SE400004B (sv) 1978-03-06
NL171215C (nl) 1983-02-16
JPS5515891B2 (sv) 1980-04-26
US3868603A (en) 1975-02-25
DE2410881B2 (de) 1980-01-31
AU6643374A (en) 1975-09-11
DE2410881A1 (de) 1974-09-12
NL171215B (nl) 1982-09-16

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