CA2087521C - Method and apparatus for received signal equalization - Google Patents

Method and apparatus for received signal equalization

Info

Publication number
CA2087521C
CA2087521C CA002087521A CA2087521A CA2087521C CA 2087521 C CA2087521 C CA 2087521C CA 002087521 A CA002087521 A CA 002087521A CA 2087521 A CA2087521 A CA 2087521A CA 2087521 C CA2087521 C CA 2087521C
Authority
CA
Canada
Prior art keywords
signal
equalizing
information
operational parameter
zero
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 - Fee Related
Application number
CA002087521A
Other languages
English (en)
French (fr)
Inventor
Richard A. Beichler
Steven R. Blackwell
David P. Nelson
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA2087521C publication Critical patent/CA2087521C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03656—Initialisation
    • H04L2025/03662—Initialisation to a fixed value

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)
  • Dc Digital Transmission (AREA)
CA002087521A 1990-07-20 1991-07-01 Method and apparatus for received signal equalization Expired - Fee Related CA2087521C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/556,237 US5052023A (en) 1990-07-20 1990-07-20 Method and apparatus for received signal equalization
US556,237 1990-07-20

Publications (1)

Publication Number Publication Date
CA2087521C true CA2087521C (en) 1996-04-23

Family

ID=24220485

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002087521A Expired - Fee Related CA2087521C (en) 1990-07-20 1991-07-01 Method and apparatus for received signal equalization

Country Status (5)

Country Link
US (1) US5052023A (enExample)
EP (1) EP0540660B1 (enExample)
CA (1) CA2087521C (enExample)
DE (1) DE69129585T2 (enExample)
WO (1) WO1992002078A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490169A (en) * 1993-06-16 1996-02-06 Universal Data Systems, Inc. Decision feedback equalizer method and apparatus
US20040213358A1 (en) * 1994-05-23 2004-10-28 Samsung Electronics Co., Ltd. Radio receiver for receiving both VSB and QAM digital HDTV signals
US5550862A (en) * 1994-08-01 1996-08-27 Rockwell International Corporation Method and apparatus for centering equalizer taps
CA2266945C (en) * 1994-12-09 2002-04-02 Brent Townshend High speed encoder and encoding method
US5970103A (en) 1996-09-06 1999-10-19 Townshend; Brent High speed communications system for analog subscriber connections
US5684827A (en) * 1995-10-04 1997-11-04 Zenith Electronics Corporation System for controlling the operating mode of an adaptive equalizer
SE514793C2 (sv) * 1999-05-31 2001-04-23 Ericsson Telefon Ab L M Förfarande och system för linjenivåjustering mellan nätverk

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527304B1 (enExample) * 1969-08-29 1977-03-01
US3638122A (en) * 1970-02-11 1972-01-25 North American Rockwell High-speed digital transmission system
FR2419618A1 (fr) * 1978-03-10 1979-10-05 Cit Alcatel Egaliseur automatique pour transmission numerique synchrone
NL8204087A (nl) * 1982-10-22 1984-05-16 Philips Nv Automatisch instelbaar egalisatie netwerk.
US4545060A (en) * 1983-09-19 1985-10-01 Northern Telecom Limited Decision feedback adaptive equalizer acting on zero states following a non-zero state
US4644562A (en) * 1985-08-28 1987-02-17 At&T Company Combined cross polarization interference cancellation and intersymbol interference equalization for terrestrial digital radio systems
FR2613560B1 (fr) * 1987-03-31 1989-06-23 Cit Alcatel Egaliseur automatique pour transmission numerique
US4759035A (en) * 1987-10-01 1988-07-19 Adtran Digitally controlled, all rate equalizer

Also Published As

Publication number Publication date
EP0540660B1 (en) 1998-06-10
DE69129585T2 (de) 1999-01-07
DE69129585D1 (de) 1998-07-16
EP0540660A1 (en) 1993-05-12
EP0540660A4 (enExample) 1994-04-20
US5052023A (en) 1991-09-24
WO1992002078A1 (en) 1992-02-06

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Legal Events

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