MX9504159A - Proceso para ecualizacion rapida a ciegas de un ecualizador adaptador. - Google Patents
Proceso para ecualizacion rapida a ciegas de un ecualizador adaptador.Info
- Publication number
- MX9504159A MX9504159A MX9504159A MX9504159A MX9504159A MX 9504159 A MX9504159 A MX 9504159A MX 9504159 A MX9504159 A MX 9504159A MX 9504159 A MX9504159 A MX 9504159A MX 9504159 A MX9504159 A MX 9504159A
- Authority
- MX
- Mexico
- Prior art keywords
- adaptive equalizer
- blind equalization
- fast blind
- adaptive
- coefficients
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
-
- 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
- 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
- H04L25/0305—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure using blind adaptation
-
- 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
- H04L2025/03535—Variable structures
- H04L2025/03547—Switching between time domain structures
- H04L2025/03566—Switching between time domain structures between different tapped delay line structures
- H04L2025/03585—Modifying the length
-
- 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
-
- 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
- H04L2025/03726—Switching between algorithms
- H04L2025/03732—Switching between algorithms according to the convergence state
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Picture Signal Circuits (AREA)
Abstract
Se divulga un proceso de ecualizacion a ciegas para un ecualizador adaptador, incluyendo una pluralidad de tomas, cada una teniendo un coeficiente correspondiente. La ecualizacion a ciegas es realizada en una subserie de los coeficientes en el ecualizador adaptador. Después si los coeficientes han convergido, se inicia un proceso de ecualizacion adaptable de decision dirigida.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/315,050 US5517213A (en) | 1994-09-29 | 1994-09-29 | Process for fast blind equalization of an adaptive equalizer |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9504159A true MX9504159A (es) | 1997-02-28 |
Family
ID=23222662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9504159A MX9504159A (es) | 1994-09-29 | 1995-09-29 | Proceso para ecualizacion rapida a ciegas de un ecualizador adaptador. |
Country Status (11)
Country | Link |
---|---|
US (1) | US5517213A (es) |
EP (1) | EP0705009B1 (es) |
JP (2) | JPH08125585A (es) |
KR (1) | KR100474765B1 (es) |
CN (1) | CN1112030C (es) |
DE (1) | DE69529256T2 (es) |
MX (1) | MX9504159A (es) |
MY (1) | MY112483A (es) |
SG (1) | SG42775A1 (es) |
TR (1) | TR199501191A2 (es) |
TW (1) | TW318296B (es) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793807A (en) * | 1996-05-07 | 1998-08-11 | Lucent Technologies Inc. | Multimodulus blind eqalization using piecewise linear contours |
US5712873A (en) * | 1996-06-04 | 1998-01-27 | Thomson Consumer Electronics, Inc. | Multi-mode equalizer in a digital video signal processing system |
US6005640A (en) * | 1996-09-27 | 1999-12-21 | Sarnoff Corporation | Multiple modulation format television signal receiver system |
WO1999019808A1 (en) | 1997-10-16 | 1999-04-22 | Int Labs, Inc. | Data transfer over wire or wireless medium |
US6016374A (en) * | 1997-11-04 | 2000-01-18 | Lucent Technologies Inc. | Optical fiber communications system with adaptive data equalizer |
US6178201B1 (en) * | 1998-03-11 | 2001-01-23 | Agilent Technologies Inc. | Controlling an adaptive equalizer in a demodulator |
US6546047B1 (en) * | 1998-10-08 | 2003-04-08 | Altima Communications, Inc. | Methods and circuits for optimal equalization |
US6418164B1 (en) * | 1999-01-14 | 2002-07-09 | Nxtwave Communications, Inc. | Adaptive equalizer with enhanced error quantization |
US6553518B1 (en) | 1999-03-08 | 2003-04-22 | International Business Machines Corporation | Severe error detectors, methods and computer program products that use constellation specific error event thresholds to detect severe error events during demodulation of a signal comprising symbols from a plurality of symbol constellations |
US6341360B1 (en) * | 1999-03-08 | 2002-01-22 | International Business Machines Corporation | Decision feedback equalizers, methods, and computer program products for detecting severe error events and preserving equalizer filter characteristics in response thereto |
US6381267B1 (en) | 1999-03-08 | 2002-04-30 | International Business Machines Corporation | Modems, methods, and computer program products for falling back to a lower data rate protocol upon detecting abnormal line conditions during startup |
US6389064B1 (en) * | 1999-03-08 | 2002-05-14 | International Business Machines Corporation | Modems, methods, and computer program products for identifying a signaling alphabet in variance with an ideal alphabet due to digital impairments |
US7003030B2 (en) | 1999-03-08 | 2006-02-21 | Lenovo (Singapore) Pte. Ltd. | Receivers, methods, and computer program products for an analog modem that receives data signals from a digital modem |
US6661837B1 (en) | 1999-03-08 | 2003-12-09 | International Business Machines Corporation | Modems, methods, and computer program products for selecting an optimum data rate using error signals representing the difference between the output of an equalizer and the output of a slicer or detector |
US6487243B1 (en) | 1999-03-08 | 2002-11-26 | International Business Machines Corporation | Modems, methods, and computer program products for recovering from errors in a tone reversal sequence between two modems |
US6661847B1 (en) | 1999-05-20 | 2003-12-09 | International Business Machines Corporation | Systems methods and computer program products for generating and optimizing signal constellations |
JP3560138B2 (ja) * | 1999-12-06 | 2004-09-02 | 松下電器産業株式会社 | 波形等化器とこれを用いた移動局無線装置、基地局無線装置及び移動通信システム |
US7068736B2 (en) * | 2001-07-11 | 2006-06-27 | Agere Systems Inc. | Methods and devices for shortening the convergence time of blind, adaptive equalizers |
US7391834B2 (en) * | 2002-10-01 | 2008-06-24 | Intel Corporation | Pulse amplitude modulated system with reduced intersymbol interference |
US7293055B2 (en) * | 2003-04-07 | 2007-11-06 | Pmc-Sierra, Inc. | Flexible adaptation engine for adaptive transversal filters |
US20050047802A1 (en) * | 2003-09-02 | 2005-03-03 | Harris Corporation | Post-detection, fiber optic dispersion compensation using adjustable infinite impulse response filter employing trained or decision-directed adaptation |
US20050047779A1 (en) * | 2003-09-02 | 2005-03-03 | Harris Corporation | Post-detection, fiber optic dispersion compensation using adjustable inverse distortion operator employing trained or decision-based parameter adaptation (estimation) |
JP4331641B2 (ja) * | 2004-04-09 | 2009-09-16 | 富士通株式会社 | 等化回路を有する受信回路 |
US7852912B2 (en) * | 2005-03-25 | 2010-12-14 | Agilent Technologies, Inc. | Direct determination equalizer system |
WO2013051244A1 (ja) | 2011-10-05 | 2013-04-11 | 日本電気株式会社 | 信号処理装置及び信号処理方法 |
US9049069B2 (en) * | 2013-03-21 | 2015-06-02 | Broadcom Corporation | Sparse equalizer system |
US10069653B1 (en) * | 2017-05-12 | 2018-09-04 | Seagate Technology Llc | Blind partial response equalization |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2354003A1 (fr) * | 1976-06-04 | 1977-12-30 | Anvar | Perfectionnements aux systemes de transmission de donnees |
JPS58161415A (ja) * | 1982-03-18 | 1983-09-26 | Ricoh Co Ltd | 自動等化器 |
JPS60206232A (ja) * | 1984-03-30 | 1985-10-17 | Hitachi Denshi Ltd | 自動等化方式 |
US5134464A (en) * | 1990-11-16 | 1992-07-28 | North American Philips Corporation | Method and apparatus for the transmission and reception of a multicarrier digital television signal |
US5263033A (en) * | 1990-06-22 | 1993-11-16 | At&T Bell Laboratories | Joint data and channel estimation using fast blind trellis search |
US5157690A (en) * | 1990-10-30 | 1992-10-20 | Level One Communications, Inc. | Adaptive convergent decision feedback equalizer |
AU655384B2 (en) * | 1991-07-26 | 1994-12-15 | General Instrument Corporation | Carrier phase recovery for an adaptive equalizer |
US5282225A (en) * | 1992-02-04 | 1994-01-25 | Northeastern University | Adaptive blind channel equalizer system |
US5267266A (en) * | 1992-05-11 | 1993-11-30 | Bell Communications Research, Inc. | Fast converging adaptive equalizer using pilot adaptive filters |
US5297166A (en) * | 1992-07-02 | 1994-03-22 | National Semiconductor Corporation | Method and apparatus for decision feedback equalization with reduced convergence time |
-
1994
- 1994-09-29 US US08/315,050 patent/US5517213A/en not_active Expired - Lifetime
-
1995
- 1995-03-14 TW TW084102434A patent/TW318296B/zh active
- 1995-09-21 EP EP95114865A patent/EP0705009B1/en not_active Expired - Lifetime
- 1995-09-21 DE DE69529256T patent/DE69529256T2/de not_active Expired - Lifetime
- 1995-09-26 MY MYPI95002865A patent/MY112483A/en unknown
- 1995-09-27 SG SG1995001438A patent/SG42775A1/en unknown
- 1995-09-27 KR KR1019950032017A patent/KR100474765B1/ko not_active IP Right Cessation
- 1995-09-28 CN CN95118645A patent/CN1112030C/zh not_active Expired - Fee Related
- 1995-09-29 TR TR95/01191A patent/TR199501191A2/xx unknown
- 1995-09-29 JP JP7254148A patent/JPH08125585A/ja active Pending
- 1995-09-29 MX MX9504159A patent/MX9504159A/es unknown
-
2007
- 2007-07-25 JP JP2007193958A patent/JP4540692B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
TW318296B (es) | 1997-10-21 |
JPH08125585A (ja) | 1996-05-17 |
KR960013027A (ko) | 1996-04-20 |
JP2007318800A (ja) | 2007-12-06 |
MY112483A (en) | 2001-06-30 |
KR100474765B1 (ko) | 2005-08-01 |
DE69529256D1 (de) | 2003-02-06 |
CN1112030C (zh) | 2003-06-18 |
EP0705009B1 (en) | 2003-01-02 |
EP0705009A1 (en) | 1996-04-03 |
DE69529256T2 (de) | 2003-08-28 |
TR199501191A2 (tr) | 1996-06-21 |
CN1129880A (zh) | 1996-08-28 |
US5517213A (en) | 1996-05-14 |
SG42775A1 (en) | 1997-10-17 |
JP4540692B2 (ja) | 2010-09-08 |
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