DE3173567D1 - Transversal equalizer - Google Patents

Transversal equalizer

Info

Publication number
DE3173567D1
DE3173567D1 DE8181107435T DE3173567T DE3173567D1 DE 3173567 D1 DE3173567 D1 DE 3173567D1 DE 8181107435 T DE8181107435 T DE 8181107435T DE 3173567 T DE3173567 T DE 3173567T DE 3173567 D1 DE3173567 D1 DE 3173567D1
Authority
DE
Germany
Prior art keywords
transversal equalizer
equalizer
transversal
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
DE8181107435T
Other languages
English (en)
Inventor
Shunsuke Honda
Hideo Suzuki
Haruki Yahata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 JP13263180A external-priority patent/JPS5757023A/ja
Priority claimed from JP13263280A external-priority patent/JPS5757024A/ja
Application filed by Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE3173567D1 publication Critical patent/DE3173567D1/de
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
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

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)
DE8181107435T 1980-09-24 1981-09-18 Transversal equalizer Expired DE3173567D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13263180A JPS5757023A (en) 1980-09-24 1980-09-24 Transversal equalizer
JP13263280A JPS5757024A (en) 1980-09-24 1980-09-24 Transversal equalizer

Publications (1)

Publication Number Publication Date
DE3173567D1 true DE3173567D1 (de) 1986-03-06

Family

ID=26467158

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181107435T Expired DE3173567D1 (de) 1980-09-24 1981-09-18 Transversal equalizer

Country Status (4)

Country Link
US (1) US4483009A (de)
EP (1) EP0048475B1 (de)
CA (1) CA1170317A (de)
DE (1) DE3173567D1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540692B1 (fr) * 1983-02-07 1985-06-14 Labo Electronique Physique Dispositif d'egalisation d'amplitude auto-adaptatif pour faisceaux hertziens numeriques
US4607377A (en) * 1983-04-26 1986-08-19 Nec Corporation Transversal type equalizer apparatus
DE3484701D1 (de) * 1983-10-05 1991-07-18 Nec Corp Digitale signalverarbeitungseinrichtung mit einem digitalen filter.
CA1238368A (en) * 1983-10-14 1988-06-21 Takayuki Ozaki Digital radio receiving apparatus
FR2554996B1 (fr) * 1983-11-14 1986-02-28 Labo Electronique Physique Procede et dispositif pour la determination de la position optimale du coefficient de reference d'un egaliseur adaptatif
US4550415A (en) * 1983-11-16 1985-10-29 At&T Bell Laboratories Fractionally spaced equalization using nyquist-rate coefficient updating
US4695969A (en) * 1984-12-17 1987-09-22 American Telephone And Telegraph Company At&T Bell Laboratories Equalizer with improved performance
US4650930A (en) * 1985-02-13 1987-03-17 Northern Telecom Limited Adaptive equalizer
US4797898A (en) * 1986-11-21 1989-01-10 Racal Data Communications Inc. Method and apparatus for equalization of data transmission system
JPS6436153A (en) * 1987-07-31 1989-02-07 Nec Corp Quadruple phase modulator
SE468920B (sv) * 1987-10-23 1993-04-05 Ericsson Telefon Ab L M Adaptiv utjaemnare ingaaende i mottagaren foer ett datatransmissionsmedium
DE3744075A1 (de) * 1987-12-24 1989-07-13 Licentia Gmbh Verfahren zur entzerrung von dispersiven, linearen oder naeherungsweise linearen kanaelen zur uebertragung von digitalen signalen sowie anordnung zum ausfuehren des verfahrens
US4995057A (en) * 1988-11-02 1991-02-19 At&T Bell Laboratories Technique for achieving the theoretical coding gain of digital signals incorporating error correction
US5008903A (en) * 1989-05-25 1991-04-16 A.T. & T. Paradyne Adaptive transmit pre-emphasis for digital modem computed from noise spectrum
JPH0498902A (ja) * 1990-08-17 1992-03-31 Toshiba Corp 等化装置
JPH0421207A (ja) * 1990-05-16 1992-01-24 Oki Electric Ind Co Ltd 適応等化器
JP2840155B2 (ja) * 1992-03-19 1998-12-24 富士通株式会社 等化方法
KR960011739B1 (ko) * 1994-01-18 1996-08-30 대우전자 주식회사 실시간 계수 갱신값 추출장치를 구비한 등화기
KR970000767B1 (ko) * 1994-01-18 1997-01-18 대우전자 주식회사 블라인드 등화기
JP3462937B2 (ja) * 1994-09-27 2003-11-05 富士通株式会社 自動振幅等化器
US5551501A (en) * 1994-10-21 1996-09-03 Dcl, Inc. Screen assembly
EP0813301A1 (de) * 1996-06-10 1997-12-17 TOSHIBA Electronics Europe GmbH Digitales adaptives Filter
KR100201776B1 (ko) * 1996-11-06 1999-06-15 김영환 고리 구조를 갖는 적응 등화기
US6665337B1 (en) * 1999-03-31 2003-12-16 Intel Corporation Activation method in data transceivers
US20020168001A1 (en) * 2001-05-09 2002-11-14 Jeffrey Ramsey Systems and method for determining the phase angle response in a CATV system
US8223827B2 (en) * 2004-05-05 2012-07-17 Agere Systems Inc. Method and apparatus for generating filter tap weights and biases for signal dependent branch metric computation
US7409417B2 (en) * 2004-05-24 2008-08-05 Broadcom Corporation Polyphase filter with optimized silicon area
US7421022B2 (en) * 2005-04-27 2008-09-02 Inphi Corporation Method for robust and stable convergence of blind LMS based adaptation of coefficients for a continuous time FFE-DFE
US10237095B2 (en) 2014-09-22 2019-03-19 Commonwealth Scientific And Industrial Research Organisation Linear equalization for use in low latency high speed communication systems

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522546A (en) * 1968-02-29 1970-08-04 Bell Telephone Labor Inc Digital filters
US3633105A (en) * 1970-04-01 1972-01-04 Gte Automatic Electric Lab Inc Digital adaptive equalizer system
FR2216715B1 (de) * 1973-01-31 1976-06-11 Ibm France
US3914691A (en) * 1974-08-21 1975-10-21 Bell Telephone Labor Inc Repositioning of equalizer tap-gain coefficients
US3943448A (en) * 1974-09-11 1976-03-09 Hycom Incorporated Apparatus and method for synchronizing a digital modem using a random multilevel data signal
JPS5152264A (de) * 1974-09-11 1976-05-08 Sharp Kk
US3962637A (en) * 1974-11-11 1976-06-08 Hycom Incorporated Ultrafast adaptive digital modem
US3980873A (en) * 1975-06-27 1976-09-14 Aeronutronic Ford Corporation Digital convolutional filter
DE2724561C2 (de) * 1977-05-31 1983-09-29 Siemens AG, 1000 Berlin und 8000 München Adaptiver Entzerrer für breitbandige Signale
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
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
US4247940A (en) * 1979-10-15 1981-01-27 Bell Telephone Laboratories, Incorporated Equalizer for complex data signals
US4253184A (en) * 1979-11-06 1981-02-24 Bell Telephone Laboratories, Incorporated Phase-jitter compensation using periodic harmonically related components

Also Published As

Publication number Publication date
EP0048475A1 (de) 1982-03-31
US4483009A (en) 1984-11-13
EP0048475B1 (de) 1986-01-22
CA1170317A (en) 1984-07-03

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Legal Events

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8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)