BRPI0416673A - aparelho e método de equalização de realimentação de decisão em receptor de difusão digital terrestre - Google Patents
aparelho e método de equalização de realimentação de decisão em receptor de difusão digital terrestreInfo
- Publication number
- BRPI0416673A BRPI0416673A BRPI0416673-6A BRPI0416673A BRPI0416673A BR PI0416673 A BRPI0416673 A BR PI0416673A BR PI0416673 A BRPI0416673 A BR PI0416673A BR PI0416673 A BRPI0416673 A BR PI0416673A
- Authority
- BR
- Brazil
- Prior art keywords
- feedback equalization
- equalization apparatus
- decision feedback
- digital broadcast
- broadcast receiver
- Prior art date
Links
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
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
-
- 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
- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and TCM
-
- 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)
- Power Engineering (AREA)
- Artificial Intelligence (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
"APARELHO E MéTODO DE EQUALIZAçãO DE REALIMENTAçãO DE DECISãO EM RECEPTOR DE DIFUSãO DIGITAL TERRESTRE". A presente invenção refere-se a um aparelho de equalização de realimentação de decisão e um método para ele. O objeto da invenção é o de apresentar um aparelho e um método de equalização de realimentação de decisão que fazem com que a propriedade de canal de um sinal de recepção inferior seja suave pela utilização de um filtro equilibrado com canal e reduz os erros de decisão dos sinais de saída do detector de símbolos pela utilização de um decodificador em treliça com complexidade reduzida, cuja profundidade de retro-rastreamento é 1 (TBD=1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20030082725 | 2003-11-20 | ||
PCT/KR2004/000707 WO2005050987A1 (en) | 2003-11-20 | 2004-03-27 | Apparatus and method of decision feedback equalization in terrestrial digital broadcasting receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0416673A true BRPI0416673A (pt) | 2007-02-13 |
Family
ID=34617267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0416673-6A BRPI0416673A (pt) | 2003-11-20 | 2004-03-27 | aparelho e método de equalização de realimentação de decisão em receptor de difusão digital terrestre |
Country Status (4)
Country | Link |
---|---|
US (1) | US7668264B2 (pt) |
KR (1) | KR100535775B1 (pt) |
BR (1) | BRPI0416673A (pt) |
WO (1) | WO2005050987A1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114696852B (zh) * | 2022-02-28 | 2023-11-07 | 深圳市紫光同创电子有限公司 | 接收机抽头系数获取方法、设备及存储介质 |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602005018639D1 (de) * | 2004-05-12 | 2010-02-11 | Thomson Licensing | Doppelmodus-entzerrer in einem atsc-dtv-empfänger |
KR100577260B1 (ko) * | 2004-07-29 | 2006-05-10 | 엘지전자 주식회사 | 채널 등화 장치 및 방법 |
US7483481B1 (en) * | 2004-08-31 | 2009-01-27 | Adtran, Inc. | System and method for adaptively updating precoder taps |
US7844232B2 (en) * | 2005-05-25 | 2010-11-30 | Research In Motion Limited | Joint space-time optimum filters (JSTOF) with at least one antenna, at least one channel, and joint filter weight and CIR estimation |
US7623605B2 (en) * | 2005-08-15 | 2009-11-24 | Research In Motion Limited | Interference canceling matched filter (ICMF) and related methods |
US20070036122A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Joint Space-Time Optimum Filters (JSTOF) for Interference Cancellation |
US20070037540A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Joint Space-Time Optimum Filters (JSTOF) Using Singular Value Decompositions (SVD) |
US20070049232A1 (en) * | 2005-08-15 | 2007-03-01 | Research In Motion Limited | Joint Space-Time Optimum Filter (JSTOF) Using QR and Eigenvalue Decompositions |
US20070049233A1 (en) * | 2005-08-15 | 2007-03-01 | Research In Motion Limited | Wireless Communications Device Including a Joint Space-Time Optimum Filters (JSTOF) Using Singular Value Decompositions (SVD) |
US20070037541A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Wireless Communications Device Including a Joint Space-Time Optimum Filter (JSTOF) Using Cholesky and Eigenvalue Decompositions |
JP4819470B2 (ja) | 2005-10-11 | 2011-11-24 | 三星電子株式会社 | 復号装置および復号方法 |
KR100728257B1 (ko) * | 2005-10-27 | 2007-06-13 | 한국전자통신연구원 | 채널 특성 변화를 이용한 판정 궤환 등화 장치 및 그 방법 |
US7944964B2 (en) * | 2005-12-09 | 2011-05-17 | Electronics And Telecommunications Research Institute | Apparatus and method for stable DEF using selective FBF |
US8385397B2 (en) * | 2007-01-19 | 2013-02-26 | Techwell Llc | Method for determining the step size for an LMS adaptive equalizer for 8VSB |
KR101490246B1 (ko) | 2007-07-02 | 2015-02-05 | 엘지전자 주식회사 | 방송 수신기 및 방송신호 처리방법 |
KR101513028B1 (ko) * | 2007-07-02 | 2015-04-17 | 엘지전자 주식회사 | 방송 수신기 및 방송신호 처리방법 |
KR101531910B1 (ko) * | 2007-07-02 | 2015-06-29 | 엘지전자 주식회사 | 방송 수신기 및 방송신호 처리방법 |
KR100930792B1 (ko) * | 2007-09-07 | 2009-12-09 | 한국전자통신연구원 | 직교주파수 분할 다중 전송 시스템에서 수신 신호의 채널등화 장치 및 방법, 및 이를 적용한 디엠비 수신장치 |
WO2009038437A2 (en) * | 2007-09-21 | 2009-03-26 | Lg Electronics Inc. | Digital broadcasting receiver and method for controlling the same |
US7860157B2 (en) * | 2007-10-22 | 2010-12-28 | Legend Silicon Corp. | Mobile receiver equalizer structure for use in the ATSC standard |
US8027409B2 (en) * | 2007-12-21 | 2011-09-27 | Agere Systems Inc. | Noise prediction-based signal detection and cross-talk mitigation |
US8045607B2 (en) * | 2008-02-19 | 2011-10-25 | Himax Technologies Limited | Method applied to an equalizer for reducing ISI and related ISI reduction apparatus |
US20140047497A1 (en) * | 2008-03-12 | 2014-02-13 | Iberium Communications, Inc. | Method and system for symbol-rate-independent adaptive equalizer initialization |
US8265133B2 (en) * | 2009-09-30 | 2012-09-11 | Silicon Laboratories Inc. | Radio receiver having a multipath equalizer |
US8130882B2 (en) * | 2009-09-30 | 2012-03-06 | Silicon Laboratories Inc. | Radio receiver having a multipath equalizer |
CN101888356B (zh) * | 2010-05-28 | 2013-06-26 | 深圳市国微科技有限公司 | 一种动态信道均衡器及其均衡方法 |
WO2014182000A1 (ko) * | 2013-05-07 | 2014-11-13 | 포항공과대학교 산학협력단 | 계수 오류 로버스트 피드포워드등화기 |
US8982976B2 (en) * | 2013-07-22 | 2015-03-17 | Futurewei Technologies, Inc. | Systems and methods for trellis coded quantization based channel feedback |
US9319249B2 (en) * | 2014-08-27 | 2016-04-19 | eTopus Technology Inc. | Receiver for high speed communication channel |
US10193659B2 (en) * | 2015-11-27 | 2019-01-29 | Cohda Wireless Pty Ltd. | Wireless receiver |
US10374844B1 (en) * | 2018-03-08 | 2019-08-06 | Nxp B.V. | Signal-equalization with noise-whitening filter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303263A (en) * | 1991-06-25 | 1994-04-12 | Oki Electric Industry Co., Ltd. | Transmission channel characteristic equalizer |
US5583889A (en) * | 1994-07-08 | 1996-12-10 | Zenith Electronics Corporation | Trellis coded modulation system for HDTV |
US6690754B1 (en) | 1999-06-04 | 2004-02-10 | Agere Systems Inc. | Method and apparatus for reducing the computational complexity and relaxing the critical path of reduced state sequence estimation (RSSE) techniques |
KR100314113B1 (ko) * | 1999-08-25 | 2001-11-15 | 구자홍 | 정합 필터 및 필터링방법, 이를 이용한 다매체 디지털 방송수신 장치 |
US7418034B2 (en) | 2001-06-19 | 2008-08-26 | Micronas Semiconductors. Inc. | Combined trellis decoder and decision feedback equalizer |
AU2003230880A1 (en) * | 2002-04-17 | 2003-11-03 | Thomson Licensing S.A. | Equalizer/forward error correction automatic mode selector |
US7177354B2 (en) * | 2003-04-22 | 2007-02-13 | Zenith Electronics Corporation | Method and apparatus for the control of a decision feedback equalizer |
-
2004
- 2004-03-27 BR BRPI0416673-6A patent/BRPI0416673A/pt not_active IP Right Cessation
- 2004-03-27 WO PCT/KR2004/000707 patent/WO2005050987A1/en active Application Filing
- 2004-03-27 US US10/579,793 patent/US7668264B2/en not_active Expired - Fee Related
- 2004-04-01 KR KR10-2004-0022664A patent/KR100535775B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114696852B (zh) * | 2022-02-28 | 2023-11-07 | 深圳市紫光同创电子有限公司 | 接收机抽头系数获取方法、设备及存储介质 |
Also Published As
Publication number | Publication date |
---|---|
US7668264B2 (en) | 2010-02-23 |
US20070104264A1 (en) | 2007-05-10 |
KR20050049304A (ko) | 2005-05-25 |
WO2005050987A1 (en) | 2005-06-02 |
KR100535775B1 (ko) | 2005-12-09 |
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B08L | Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette] |
Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 9A E 10A ANUIDADES. |
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B08I | Publication cancelled [chapter 8.9 patent gazette] |
Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2259 DE 22/04/2014 POR TER SIDO INDEVIDA. |
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B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 3A, 9A, 10A, 11A, 12A, 13A, 14A, 15A E 16A ANUIDADES. |
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B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |