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)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6433835B1 (en) 1998-04-17 2002-08-13 Encamera Sciences Corporation Expanded information capacity for existing communication transmission systems
US7072392B2 (en) * 2000-11-13 2006-07-04 Micronas Semiconductors, Inc. Equalizer for time domain signal processing
US6940557B2 (en) 2001-02-08 2005-09-06 Micronas Semiconductors, Inc. Adaptive interlace-to-progressive scan conversion algorithm
US6584143B2 (en) * 2001-03-02 2003-06-24 Motorola, Inc. Method and apparatus for joint detection of a coded signal in a CDMA system
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
US7190744B2 (en) * 2001-06-07 2007-03-13 Micronas Semiconductors, Inc. Error generation for adaptive equalizer
US7418034B2 (en) * 2001-06-19 2008-08-26 Micronas Semiconductors. Inc. Combined trellis decoder and decision feedback equalizer
US7010030B2 (en) * 2001-07-20 2006-03-07 Koninklijke Philips Electronics N.V. Software definable block adaptive decision feedback equalizer
US6587501B2 (en) * 2001-07-30 2003-07-01 Motorola, Inc. Method and apparatus for joint detection of a coded signal in a CDMA system
EP1292077A3 (de) * 2001-09-11 2006-10-11 Broadcom Corporation Folgeschätzung für mit phasensprüngen modulierte Signale
US7180942B2 (en) 2001-12-18 2007-02-20 Dotcast, Inc. Joint adaptive optimization of soft decision device and feedback equalizer
KR100442255B1 (ko) * 2002-02-27 2004-07-30 엘지전자 주식회사 채널 등화 장치
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
US7376181B2 (en) * 2002-04-05 2008-05-20 Micronas Semiconductors, Inc. Transposed structure for a decision feedback equalizer combined with a trellis decoder
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
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
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
US6995617B2 (en) * 2002-04-05 2006-02-07 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop
WO2003090389A1 (en) * 2002-04-17 2003-10-30 Thomson Licensing S.A. Equalizer/forward error correction automatic mode selector
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
US7580482B2 (en) 2003-02-19 2009-08-25 Endres Thomas J Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver
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
MXPA06011684A (es) * 2004-04-09 2007-03-15 Micronas Semiconductors Inc Aparato y metodo para desarrollar valores compensados de muestras de una senal recibida de un canal.
US7995648B2 (en) * 2004-04-09 2011-08-09 Trident Microsystems (Far East) Ltd. Advanced digital receiver
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
TWI255608B (en) * 2005-04-01 2006-05-21 Univ Nat Chiao Tung Transmission method combining trellis coded modulation code (TCM) and low-density parity check code (LDPC), and structure thereof
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
AU2007243937B2 (en) * 2006-01-12 2011-03-17 Agere Systems Inc. Receiver employing non-pilot reference channels for equalizing a received signal
US20070183489A1 (en) * 2006-02-07 2007-08-09 Samsung Electronics Co., Ltd. Apparatus for decoding a signal and method thereof and a trellis coded modulation decoder and method thereof
US7697604B2 (en) * 2006-04-17 2010-04-13 Techwell, Inc. Dual pDFE system with forward-backward viterbi
US7697642B2 (en) 2006-04-17 2010-04-13 Techwell, Inc. Reducing equalizer error propagation with a low complexity soft output Viterbi decoder
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
US8102908B2 (en) 2006-09-28 2012-01-24 Panasonic Corporation Waveform equalizing device
KR20090056929A (ko) * 2006-09-29 2009-06-03 파나소닉 주식회사 파형등화장치
US7813422B2 (en) * 2007-02-23 2010-10-12 Agere Systems Inc. Adaptive equalizer with tap coefficient averaging
MX2009012392A (es) 2007-05-16 2009-12-01 Thomson Licensing Aparato y metodo para codificar y descodificar señales.
US7965466B1 (en) 2007-05-18 2011-06-21 Marvell International Ltd. Equalization and detection
KR101490877B1 (ko) * 2007-10-15 2015-02-06 톰슨 라이센싱 디지털 텔레비전 시스템을 위한 프리앰블
CA2701634A1 (en) 2007-10-15 2009-04-23 Richard W. Citta High definition television transmission with mobile capability
US9379741B2 (en) * 2008-02-13 2016-06-28 Broadcom Corporation Memory depth optimization in communications systems with ensemble PHY layer requirements
KR101466695B1 (ko) * 2008-04-30 2014-12-01 삼성전자주식회사 멀티 비트 레벨 데이터의 부호화 및 복호화 방법
US8848774B2 (en) * 2008-08-19 2014-09-30 Lsi Corporation Adaptation of a linear equalizer using a virtual decision feedback equalizer (VDFE)
JP6497069B2 (ja) * 2014-12-25 2019-04-10 富士通株式会社 判定帰還型等化回路
US9660845B2 (en) * 2015-10-06 2017-05-23 Huawei Technologies Co., Ltd. System and method for state reduction in trellis equalizers using bounded state enumeration
US11736144B2 (en) * 2020-11-12 2023-08-22 Texas Instruments Incorporated Decomposed real-imaginary equalizer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546430A (en) 1995-05-01 1996-08-13 Universite du Quebeca Hull Detector for demodulating a received signal and producing an information data signal with reduced intersymbol interference
US6141384A (en) * 1997-02-14 2000-10-31 Philips Electronics North America Corporation Decoder for trellis encoded interleaved data stream and HDTV receiver including such a decoder
US5872817A (en) * 1997-07-02 1999-02-16 Lucent Technologies Inc. Joint viterbi decoder and decision feedback equalizer
US6240133B1 (en) * 1998-02-05 2001-05-29 Texas Instruments Incorporated High stability fast tracking adaptive equalizer for use with time varying communication channels
US6724844B1 (en) * 1998-06-30 2004-04-20 Koninklijke Philips Electronics N.V. Method and device for improving DFE performance in a trellis-coded system
AU1607400A (en) * 1998-11-03 2000-05-22 Broadcom Corporation Dual mode qam/vsb receiver
US6775334B1 (en) * 1998-11-03 2004-08-10 Broadcom Corporation Equalization and decision-directed loops with trellis demodulation in high definition TV

Also Published As

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

Similar Documents

Publication Publication Date Title
DE60202765D1 (de) Zweistufiger entzerrer für trelliskodierte systeme
US8560913B2 (en) Data embedding system
AU726062B2 (en) Iterative channel estimation
KR100985578B1 (ko) 트렐리스 복호기와 연동하여 동작하는 채널등화장치를가지는 단일반송파수신기 및 그의 채널등화방법
EP1038365B1 (de) Verfahren zur Verbesserung der DFE-Leistungen in einem Trelliskodierten System
DE602004027750D1 (de) Spektrum-codierungseinrichtung, spektrum-decodierungseinrichtung, übertragungseinrichtung für akustische signale, empfangseinrichtung für akustische signale und verfahren dafür
UA83627C2 (ru) Способ обработки данных передачи по каналу с многолучевым распространением сигнала с множественными входами и множественными выходами (мімо) в системе связи мімо (варианты), запоминающее устройство, передающий блок, передающее устройство и процессор цифровых сигналов с системе связи мимо
SE9600966L (sv) Samsändande höghastighetssystem som använder adaptiv kompensering
WO2006020826A3 (en) Method and apparatus for fast encoding of data symbols according to half-weight codes
TW200623665A (en) Iteractive and turbo-based method and apparatus for equalization of spread-spectrum downlink channels
DE602004029333D1 (de) Kommunikationsempfänger mit einem adaptiven entzerrer, welcher kanalschätzung verwendet
Sozer et al. Iterative equalization and decoding techniques for shallow water acoustic channels
FR2859328B1 (fr) Procede et dispositif d'egalisation et de decodage iteratif pour communications haut-debit sur canaux a antennes multiples en emission et en reception
JP2002043984A (ja) 情報伝送チャンネルのインパルス応答を推定する方法及び装置
KR100348677B1 (ko) 소프트 판정 피드백을 이용한 채널 추정 방법
UA90877C2 (ru) Оценка канала для заглушения помех
WO2005043317A3 (en) System and method for adjusting soft decision thresholds in a soft-decision error correction system
NO20044077L (no) Anordning og fremgangsmate for sok etter kjente sekvenser
ATE268079T1 (de) Verfahren und einrichtung zur entzerrung und dekodierung eines datensignals
US6782046B1 (en) Decision-directed adaptation for coded modulation
TW200607285A (en) Soft adaptive viterbi equalizing method and related apparatus thereof
WO2007123863B1 (en) Dual pdfe system with forward-backward viterbi
DK1198890T3 (da) Fremgangsmåde til frembringelse af pålidelighedsinformationer for kanaldekodningen i en radiomodtager såvel som en tilsvarende radiomodtager
CA2440064A1 (en) Channel equalizer of single carrier receiver and equalizing method thereof
WO2007005156A3 (en) Method and apparatus for speech quality assessment in a cellular communication system

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties