ATE288164T1 - Zweistufiger entzerrer für trelliskodierte systeme - Google Patents

Zweistufiger entzerrer für trelliskodierte systeme

Info

Publication number
ATE288164T1
ATE288164T1 AT02720344T AT02720344T ATE288164T1 AT E288164 T1 ATE288164 T1 AT E288164T1 AT 02720344 T AT02720344 T AT 02720344T AT 02720344 T AT02720344 T AT 02720344T AT E288164 T1 ATE288164 T1 AT E288164T1
Authority
AT
Austria
Prior art keywords
equalizer
stage
filter
decision feedback
trelli
Prior art date
Application number
AT02720344T
Other languages
English (en)
Inventor
Dagnachew Birru
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE288164T1 publication Critical patent/ATE288164T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03382—Single of vestigal sideband
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Picture Signal Circuits (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT02720344T 2001-04-10 2002-04-09 Zweistufiger entzerrer für trelliskodierte systeme ATE288164T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/829,788 US7006566B2 (en) 2001-04-10 2001-04-10 Two stage equalizer for trellis coded systems
PCT/IB2002/001111 WO2002084965A1 (en) 2001-04-10 2002-04-09 A two stage equalizer for trellis coded systems

Publications (1)

Publication Number Publication Date
ATE288164T1 true ATE288164T1 (de) 2005-02-15

Family

ID=25255558

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02720344T ATE288164T1 (de) 2001-04-10 2002-04-09 Zweistufiger entzerrer für trelliskodierte systeme

Country Status (8)

Country Link
US (1) US7006566B2 (de)
EP (1) EP1386457B1 (de)
JP (1) JP4063677B2 (de)
KR (1) KR100871072B1 (de)
CN (1) CN100471186C (de)
AT (1) ATE288164T1 (de)
DE (1) DE60202765T2 (de)
WO (1) WO2002084965A1 (de)

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US6829297B2 (en) * 2001-06-06 2004-12-07 Micronas Semiconductors, Inc. Adaptive equalizer having a variable step size influenced by output from a trellis decoder
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US6587501B2 (en) * 2001-07-30 2003-07-01 Motorola, Inc. Method and apparatus for joint detection of a coded signal in a CDMA system
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US7180942B2 (en) 2001-12-18 2007-02-20 Dotcast, Inc. Joint adaptive optimization of soft decision device and feedback equalizer
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US20030206053A1 (en) * 2002-04-04 2003-11-06 Jingsong Xia Carrier recovery for DTV receivers
US20030235259A1 (en) * 2002-04-04 2003-12-25 Jingsong Xia System and method for symbol clock recovery
US7272203B2 (en) * 2002-04-05 2007-09-18 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop for decoding an offset-QAM modulated signal having a pilot
US6980059B2 (en) * 2002-04-05 2005-12-27 Micronas Semiconductors, Inc. Data directed frequency acquisition loop that synchronizes to a received signal by using the redundancy of the data in the frequency domain
US6995617B2 (en) 2002-04-05 2006-02-07 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop
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US7321642B2 (en) * 2002-04-05 2008-01-22 Micronas Semiconductors, Inc. Synchronization symbol re-insertion for a decision feedback equalizer combined with a trellis decoder
MXPA04010137A (es) * 2002-04-17 2005-01-25 Thomson Licensing Sa Selector automatico de modo de correccion de error delantero/ecualizador.
KR100451750B1 (ko) * 2002-10-31 2004-10-08 엘지전자 주식회사 디지털 텔레비전 수신기의 채널 등화 장치
KR100985578B1 (ko) * 2002-12-03 2010-10-07 삼성전자주식회사 트렐리스 복호기와 연동하여 동작하는 채널등화장치를가지는 단일반송파수신기 및 그의 채널등화방법
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US7177354B2 (en) * 2003-04-22 2007-02-13 Zenith Electronics Corporation Method and apparatus for the control of a decision feedback equalizer
US8064528B2 (en) 2003-05-21 2011-11-22 Regents Of The University Of Minnesota Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems
KR100539248B1 (ko) * 2004-02-05 2005-12-27 삼성전자주식회사 결정 피드백 이퀄라이저 및 피드백 필터 계수 업데이트 방법
US7995648B2 (en) * 2004-04-09 2011-08-09 Trident Microsystems (Far East) Ltd. Advanced digital receiver
US7545888B2 (en) 2004-04-09 2009-06-09 Micronas Semiconductors, Inc. Apparatus for and method of controlling a digital demodulator coupled to an equalizer
WO2006020950A1 (en) * 2004-08-12 2006-02-23 Micronas Semiconductors, Inc. Automatic gain control unit of a receiver
US8139628B1 (en) * 2005-01-10 2012-03-20 Marvell International Ltd. Method and device to compensate for baseline wander
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US7382828B2 (en) * 2005-04-26 2008-06-03 Zenith Electronics Llc Channel impulse response (CIR) estimating decision feedback equalizer with phase tracker
US7613238B2 (en) * 2005-09-13 2009-11-03 Mediatek Inc. Apparatus and method for decision error compensation in an adaptive equalizer
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US7697642B2 (en) 2006-04-17 2010-04-13 Techwell, Inc. Reducing equalizer error propagation with a low complexity soft output Viterbi decoder
US7697604B2 (en) * 2006-04-17 2010-04-13 Techwell, Inc. Dual pDFE system with forward-backward viterbi
US8671128B1 (en) * 2006-06-21 2014-03-11 Ikanos Communications, Inc. Method and apparatus for a finite impulse response filter
US20080069197A1 (en) * 2006-09-20 2008-03-20 Agere Systems Inc. Equalizer for equalizing multiple received versions of a signal
US20080075159A1 (en) * 2006-09-21 2008-03-27 Uwe Sontowski Receiver having multiple stages of equalization with tap coefficient copying
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JP4829977B2 (ja) * 2006-09-29 2011-12-07 パナソニック株式会社 波形等化装置
US7813422B2 (en) * 2007-02-23 2010-10-12 Agere Systems Inc. Adaptive equalizer with tap coefficient averaging
JP2010527558A (ja) 2007-05-16 2010-08-12 トムソン ライセンシング 信号を符号化および復号する方法および装置
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Also Published As

Publication number Publication date
WO2002084965A1 (en) 2002-10-24
EP1386457B1 (de) 2005-01-26
DE60202765T2 (de) 2006-01-12
KR20030007941A (ko) 2003-01-23
US7006566B2 (en) 2006-02-28
EP1386457A1 (de) 2004-02-04
US20020172275A1 (en) 2002-11-21
JP4063677B2 (ja) 2008-03-19
CN100471186C (zh) 2009-03-18
DE60202765D1 (de) 2005-03-03
KR100871072B1 (ko) 2008-11-28
JP2004519971A (ja) 2004-07-02
CN1461549A (zh) 2003-12-10

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