CN1224227C - 自适应频道均衡器 - Google Patents
自适应频道均衡器 Download PDFInfo
- Publication number
- CN1224227C CN1224227C CNB011017031A CN01101703A CN1224227C CN 1224227 C CN1224227 C CN 1224227C CN B011017031 A CNB011017031 A CN B011017031A CN 01101703 A CN01101703 A CN 01101703A CN 1224227 C CN1224227 C CN 1224227C
- Authority
- CN
- China
- Prior art keywords
- signal
- step size
- equalizer
- errors
- data
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012937 correction Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 15
- 230000003044 adaptive effect Effects 0.000 abstract description 9
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008649 adaptation response Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
- H04L2025/03611—Iterative algorithms
- H04L2025/03617—Time recursive algorithms
- H04L2025/0363—Feature restoration, e.g. constant modulus
-
- 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
- H04L2025/03681—Control of adaptation
- H04L2025/03687—Control of adaptation of step size
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)
- Detection And Prevention Of Errors In Transmission (AREA)
- Picture Signal Circuits (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Circuits Of Receivers In General (AREA)
- Television Systems (AREA)
- Cartons (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/566,159 US6490007B1 (en) | 1999-07-14 | 2000-05-05 | Adaptive channel equalizer |
| US09/566,159 | 2000-05-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1323140A CN1323140A (zh) | 2001-11-21 |
| CN1224227C true CN1224227C (zh) | 2005-10-19 |
Family
ID=24261750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011017031A Expired - Fee Related CN1224227C (zh) | 2000-05-05 | 2001-01-20 | 自适应频道均衡器 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6490007B1 (enExample) |
| EP (1) | EP1152602B1 (enExample) |
| JP (2) | JPH06508805A (enExample) |
| KR (1) | KR100666432B1 (enExample) |
| CN (1) | CN1224227C (enExample) |
| MX (1) | MXPA01000725A (enExample) |
| MY (1) | MY126065A (enExample) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1315235B1 (en) * | 2000-08-25 | 2008-05-28 | Sanyo Electric Co., Ltd. | Adaptive array device, adaptive array method and program |
| US7072392B2 (en) * | 2000-11-13 | 2006-07-04 | Micronas Semiconductors, Inc. | Equalizer for time domain signal processing |
| US6715113B1 (en) * | 2000-12-22 | 2004-03-30 | Applied Micro Circuits Corporation | Feedback system and method for optimizing the reception of multidimensional digital frame structure communications |
| US6940557B2 (en) | 2001-02-08 | 2005-09-06 | Micronas Semiconductors, Inc. | Adaptive interlace-to-progressive scan conversion algorithm |
| 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 |
| US7158567B2 (en) * | 2001-09-11 | 2007-01-02 | Vitesse Semiconductor Corporation | Method and apparatus for improved high-speed FEC adaptive equalization |
| TW543328B (en) * | 2001-12-10 | 2003-07-21 | Silicon Integrated Sys Corp | TV decoder |
| KR100442255B1 (ko) * | 2002-02-27 | 2004-07-30 | 엘지전자 주식회사 | 채널 등화 장치 |
| US20030235259A1 (en) * | 2002-04-04 | 2003-12-25 | Jingsong Xia | System and method for symbol clock recovery |
| US20030206053A1 (en) * | 2002-04-04 | 2003-11-06 | Jingsong Xia | Carrier recovery for DTV receivers |
| 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 |
| US6995617B2 (en) * | 2002-04-05 | 2006-02-07 | Micronas Semiconductors, Inc. | Data-directed frequency-and-phase lock loop |
| 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 |
| 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 |
| US7376181B2 (en) | 2002-04-05 | 2008-05-20 | Micronas Semiconductors, Inc. | Transposed structure for a decision feedback equalizer combined with a trellis decoder |
| KR100451750B1 (ko) * | 2002-10-31 | 2004-10-08 | 엘지전자 주식회사 | 디지털 텔레비전 수신기의 채널 등화 장치 |
| US7305056B2 (en) | 2003-11-18 | 2007-12-04 | Ibiquity Digital Corporation | Coherent tracking for FM in-band on-channel receivers |
| KR100603202B1 (ko) * | 2004-06-28 | 2006-07-24 | 삼성전자주식회사 | Lms 등화기의 스텝사이즈 자동 제어방법 및 제어장치 |
| KR100698630B1 (ko) * | 2004-06-28 | 2007-03-21 | 삼성전자주식회사 | 스텝사이즈 조정기능을 구비한 등화기 및 등화방법 |
| KR100708482B1 (ko) * | 2005-03-04 | 2007-04-18 | 삼성전자주식회사 | 채널 등화기 및 채널 등화 방법 |
| CA2562194C (en) | 2005-10-05 | 2012-02-21 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
| CA2562427C (en) | 2005-10-05 | 2012-07-10 | Lg Electronics Inc. | A digital broadcast system and method of processing traffic information |
| US20070104263A1 (en) * | 2005-11-09 | 2007-05-10 | Chiao-Chih Chang | Method for adaptively tuning an equalizer |
| WO2008002168A1 (en) * | 2006-06-10 | 2008-01-03 | Motorola, Inc. | Stop-and-go algorithm for an equalizer using crc codes |
| WO2007091779A1 (en) | 2006-02-10 | 2007-08-16 | Lg Electronics Inc. | Digital broadcasting receiver and method of processing data |
| WO2007126196A1 (en) | 2006-04-29 | 2007-11-08 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| WO2007136166A1 (en) | 2006-05-23 | 2007-11-29 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| US7873104B2 (en) | 2006-10-12 | 2011-01-18 | Lg Electronics Inc. | Digital television transmitting system and receiving system and method of processing broadcasting data |
| US7853214B2 (en) * | 2007-01-05 | 2010-12-14 | Microtune (Texas), L.P. | Dynamic multi-path detection device and method |
| KR101285887B1 (ko) | 2007-03-26 | 2013-07-11 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| KR101253185B1 (ko) | 2007-03-26 | 2013-04-10 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| KR101285888B1 (ko) | 2007-03-30 | 2013-07-11 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| EP1976109A1 (en) * | 2007-03-31 | 2008-10-01 | Sony Deutschland Gmbh | Demodulator, method and receiver for demodulation |
| KR20080090784A (ko) * | 2007-04-06 | 2008-10-09 | 엘지전자 주식회사 | 전자 프로그램 정보 제어 방법 및 수신 장치 |
| KR101456002B1 (ko) | 2007-06-26 | 2014-11-03 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| KR101405966B1 (ko) | 2007-06-26 | 2014-06-20 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| US8433973B2 (en) | 2007-07-04 | 2013-04-30 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| WO2009005326A2 (en) | 2007-07-04 | 2009-01-08 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| KR20090012180A (ko) | 2007-07-28 | 2009-02-02 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| US7965778B2 (en) | 2007-08-24 | 2011-06-21 | Lg Electronics Inc. | Digital broadcasting system and method of processing data in digital broadcasting system |
| EP2191644A4 (en) | 2007-08-24 | 2015-01-07 | Lg Electronics Inc | DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN A DIGITAL BROADCASTING SYSTEM |
| KR101435843B1 (ko) | 2007-08-24 | 2014-08-29 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| KR101556132B1 (ko) * | 2007-08-24 | 2015-09-30 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
| WO2012153451A1 (ja) * | 2011-05-10 | 2012-11-15 | 三菱電機株式会社 | 適応等化器、音響エコーキャンセラ装置および能動騒音制御装置 |
| US8923382B2 (en) * | 2012-03-16 | 2014-12-30 | Lsi Corporation | Tap adaptation with a fully unrolled decision feedback equalizer |
| CN107682112A (zh) * | 2017-08-24 | 2018-02-09 | 郑州云海信息技术有限公司 | 一种以太网数据传输的控制方法 |
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| FR2519753B1 (fr) * | 1982-01-08 | 1986-02-21 | Matra | Bombe de penetration a corps etage |
| JP3038790B2 (ja) * | 1990-04-27 | 2000-05-08 | 日本電気株式会社 | 等化器 |
| US5243624A (en) * | 1991-07-26 | 1993-09-07 | General Instrument Corporation | Method and apparatus for updating coefficients in a complex adaptive equalizer |
| JPH0775099A (ja) * | 1993-05-07 | 1995-03-17 | Philips Electron Nv | マルチプレックス直交振幅変調テレビジョン送信用送信方式、送信機及び受信機 |
| KR0145439B1 (ko) * | 1994-06-14 | 1998-07-15 | 김광호 | 고선명 텔레비젼용 적응등화기의 동작제어 방법 및 장치 |
| US5910960A (en) * | 1995-06-07 | 1999-06-08 | Discovision Associates | Signal processing apparatus and method |
| JPH09135279A (ja) * | 1995-11-08 | 1997-05-20 | Hitachi Ltd | 復調装置 |
| JPH10163934A (ja) * | 1996-12-03 | 1998-06-19 | Matsushita Electric Ind Co Ltd | 受信装置 |
| JPH11122312A (ja) * | 1997-10-17 | 1999-04-30 | Mitsubishi Electric Corp | ディジタル変調装置、ディジタル復調装置、ディジタル変復調装置、ディジタル変調方法、ディジタル復調方法及びディジタル変復調方法 |
| US6233295B1 (en) * | 1998-08-26 | 2001-05-15 | Thomson Licensing S.A. | Segment sync recovery network for an HDTV receiver |
| US5940454A (en) * | 1997-12-17 | 1999-08-17 | Nortel Networks Corporation | Blind switch diversity control apparatus |
| US6222592B1 (en) * | 1998-01-13 | 2001-04-24 | Samsung Electronics Co., Ltd. | TV receiver equalizer storing channel characterizations for each TV channel between times of reception therefrom |
| US6307595B1 (en) * | 1998-01-13 | 2001-10-23 | Samsung Electronics Co., Ltd. | NTSC/DTV reception apparatus automatically conditioned for NTSC signal reception responsive to 4.5 MHz intercarrier |
| SG85096A1 (en) * | 1998-02-11 | 2001-12-19 | Samsung Electronics Co Ltd | Decimation of baseband dtv signals prior to channel equalization in digital television signal receivers |
| JP3230482B2 (ja) * | 1998-03-13 | 2001-11-19 | 日本電気株式会社 | 適応等化器 |
| JP2000049666A (ja) * | 1998-07-31 | 2000-02-18 | Matsushita Electric Ind Co Ltd | 等化器及び等化方法 |
| US6377312B1 (en) * | 1998-08-24 | 2002-04-23 | Samsung Electronics Co., Ltd. | Adaptive fractionally spaced equalizer for received radio transmissions with digital content, such as DTV signals |
| US6384858B1 (en) * | 1998-08-24 | 2002-05-07 | Samsung Electronics Co., Ltd. | Suppression of co-channel NTSC interference artifacts when extracting training signal for a DTV receiver equalizer |
| US6441843B1 (en) * | 1998-08-24 | 2002-08-27 | Samsung Electronics Co., Ltd. | Suppression of effects of co-channel NTSC interference artifacts upon digital TV receiver adaptive equalizer |
| AU1422100A (en) * | 1998-10-12 | 2000-05-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Link and radio cell adaptation in tdma/tdd systems |
| US6418164B1 (en) * | 1999-01-14 | 2002-07-09 | Nxtwave Communications, Inc. | Adaptive equalizer with enhanced error quantization |
| JP3037327B1 (ja) * | 1999-03-16 | 2000-04-24 | 福島日本電気株式会社 | 無線通信装置及び送信出力制御方法 |
-
1991
- 1991-08-05 JP JP3513761A patent/JPH06508805A/ja active Pending
-
2000
- 2000-05-05 US US09/566,159 patent/US6490007B1/en not_active Expired - Lifetime
- 2000-12-20 MY MYPI20005966A patent/MY126065A/en unknown
- 2000-12-22 EP EP00403650A patent/EP1152602B1/en not_active Expired - Lifetime
- 2000-12-26 KR KR1020000081681A patent/KR100666432B1/ko not_active Expired - Fee Related
-
2001
- 2001-01-17 JP JP2001009227A patent/JP4688299B2/ja not_active Expired - Fee Related
- 2001-01-19 MX MXPA01000725A patent/MXPA01000725A/es active IP Right Grant
- 2001-01-20 CN CNB011017031A patent/CN1224227C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1323140A (zh) | 2001-11-21 |
| MXPA01000725A (es) | 2002-08-06 |
| EP1152602A2 (en) | 2001-11-07 |
| JP4688299B2 (ja) | 2011-05-25 |
| KR100666432B1 (ko) | 2007-01-09 |
| EP1152602A3 (en) | 2004-03-24 |
| EP1152602B1 (en) | 2012-10-03 |
| JPH06508805A (ja) | 1994-10-06 |
| JP2001320304A (ja) | 2001-11-16 |
| KR20010100756A (ko) | 2001-11-14 |
| MY126065A (en) | 2006-09-29 |
| US6490007B1 (en) | 2002-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051019 Termination date: 20190120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |