BR9507070A - Aparelho usado em um sistema para receber um sinal transmitido sujeito à exibiçao de um deslocamento de portadora e método usado com um sistema para receber um sinal de vídeo transmitido que contém uma constelaçao de símbolos de dados que representam dados de imagens digitais e sujeito à exibiçao de um deslocamento de portadora - Google Patents
Aparelho usado em um sistema para receber um sinal transmitido sujeito à exibiçao de um deslocamento de portadora e método usado com um sistema para receber um sinal de vídeo transmitido que contém uma constelaçao de símbolos de dados que representam dados de imagens digitais e sujeito à exibiçao de um deslocamento de portadoraInfo
- Publication number
- BR9507070A BR9507070A BR9507070A BR9507070A BR9507070A BR 9507070 A BR9507070 A BR 9507070A BR 9507070 A BR9507070 A BR 9507070A BR 9507070 A BR9507070 A BR 9507070A BR 9507070 A BR9507070 A BR 9507070A
- Authority
- BR
- Brazil
- Prior art keywords
- receive
- display
- subject
- carrier
- transmitted
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
- H04L7/0278—Band edge detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/24—Homodyne or synchrodyne circuits for demodulation of signals wherein one sideband or the carrier has been wholly or partially suppressed
-
- 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
- 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
- H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
-
- 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
-
- 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
- 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
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/066—Carrier recovery circuits
-
- 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
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Television Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9405487A GB9405487D0 (en) | 1994-03-21 | 1994-03-21 | VSB demodulator |
PCT/US1995/003132 WO1995026075A1 (en) | 1994-03-21 | 1995-03-13 | Blind equalizer for a vestigial sideband signal |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9507070A true BR9507070A (pt) | 1997-09-09 |
Family
ID=10752203
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9507070A BR9507070A (pt) | 1994-03-21 | 1995-03-13 | Aparelho usado em um sistema para receber um sinal transmitido sujeito à exibiçao de um deslocamento de portadora e método usado com um sistema para receber um sinal de vídeo transmitido que contém uma constelaçao de símbolos de dados que representam dados de imagens digitais e sujeito à exibiçao de um deslocamento de portadora |
BR9507202A BR9507202A (pt) | 1994-03-21 | 1995-03-13 | Sistema para receber um sinal de televisão de alta definição |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9507202A BR9507202A (pt) | 1994-03-21 | 1995-03-13 | Sistema para receber um sinal de televisão de alta definição |
Country Status (11)
Country | Link |
---|---|
EP (4) | EP0801866B1 (pt) |
JP (4) | JP4044132B2 (pt) |
KR (4) | KR100361723B1 (pt) |
CN (4) | CN1085467C (pt) |
BR (2) | BR9507070A (pt) |
DE (4) | DE69527419T2 (pt) |
GB (1) | GB9405487D0 (pt) |
MX (1) | MX9604224A (pt) |
MY (4) | MY115172A (pt) |
TW (4) | TW256978B (pt) |
WO (4) | WO1995026105A1 (pt) |
Families Citing this family (46)
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KR0141876B1 (ko) * | 1994-11-28 | 1998-06-15 | 배순훈 | 고화질 텔레비젼 지에이 시스템의 180도 위상 에러 보정장치 |
KR100433639B1 (ko) * | 1995-09-20 | 2004-10-06 | 텍사스 인스트루먼츠 인코포레이티드 | 잔류측파대변조시타이밍회복을위한장치및방법 |
KR0155900B1 (ko) * | 1995-10-18 | 1998-11-16 | 김광호 | 위상에러검출방법 및 위상 트래킹 루프회로 |
US5943369A (en) * | 1996-02-27 | 1999-08-24 | Thomson Consumer Electronics, Inc. | Timing recovery system for a digital signal processor |
US6005640A (en) * | 1996-09-27 | 1999-12-21 | Sarnoff Corporation | Multiple modulation format television signal receiver system |
EP0945023B1 (en) * | 1996-12-10 | 2002-09-18 | BRITISH TELECOMMUNICATIONS public limited company | Video coding |
KR100413414B1 (ko) * | 1997-02-17 | 2004-03-19 | 엘지전자 주식회사 | 에이치디티브이(hdtv)의 타이밍 복원장치 |
KR100413415B1 (ko) * | 1997-02-17 | 2004-03-19 | 엘지전자 주식회사 | 에이치디티브이(hdtv)의 타이밍 복원장치 |
KR100413416B1 (ko) * | 1997-02-18 | 2004-03-19 | 엘지전자 주식회사 | 에이치디티브이(hdtv)의 타이밍 복원장치 |
US6198780B1 (en) | 1997-09-12 | 2001-03-06 | Daewoo Electronics Co., Ltd. | Method and apparatus for symbol timing recovery of a vestigial sideband television signal |
WO1999023821A1 (en) * | 1997-10-31 | 1999-05-14 | Thomson Licensing S.A. | Network for eliminating dc offset in a received hdtv signal |
GB2332578A (en) * | 1997-12-17 | 1999-06-23 | Motorola Inc | Demodulators for television receivers |
KR100300947B1 (ko) * | 1997-12-31 | 2001-09-03 | 박종섭 | 디지털텔레비젼수신장치의세그먼트동기신호검출장치 |
IL123739A (en) * | 1998-03-19 | 2001-11-25 | Infineon Technologies Ag | Method and equipment for restoring clock timing in XDSL modems and especially VDSL modems |
US6430243B1 (en) | 1998-05-18 | 2002-08-06 | Sarnoff Corporation | Symbol sign directed phase detector |
US6680971B1 (en) * | 1998-05-18 | 2004-01-20 | Sarnoff Corporation | Passband equalizer for a vestigial sideband signal receiver |
US6351293B1 (en) | 1998-05-18 | 2002-02-26 | Sarnoff Corporation | Decision directed phase detector |
US6430234B1 (en) | 1998-05-18 | 2002-08-06 | Sarnoff Corporation | Method and apparatus for performing phase detection and timing recovery for a vestigial sideband receiver |
US6219379B1 (en) | 1998-11-17 | 2001-04-17 | Philips Electronics North America Corporation | VSB receiver with complex equalization for improved multipath performance |
US6707861B1 (en) | 1999-10-26 | 2004-03-16 | Thomson Licensing S.A. | Demodulator for an HDTV receiver |
US6396550B1 (en) | 1999-11-05 | 2002-05-28 | Samsung Electronics Co., Ltd. | Method and device for precision tuning, and method and device for matching vestigial sideband signal in television |
KR100348259B1 (ko) * | 1999-12-21 | 2002-08-09 | 엘지전자 주식회사 | 잔류측파대 수신기 |
US6697439B1 (en) * | 2000-03-23 | 2004-02-24 | Cyntrust Communications, Inc. | Carrier acquisition in a DC/MA system |
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 |
US7418034B2 (en) | 2001-06-19 | 2008-08-26 | Micronas Semiconductors. Inc. | Combined trellis decoder and decision feedback equalizer |
ES2376743T3 (es) * | 2002-03-04 | 2012-03-16 | Glowlink Communications Technology, Inc. | Detección y medición de interferencia contenida dentro de una portadora digital |
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 |
US6795490B2 (en) * | 2002-04-17 | 2004-09-21 | Thomson Licensing S.A. | Signal detection in a direct-sequence spread spectrum transmission system |
KR20060010778A (ko) * | 2003-05-05 | 2006-02-02 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 복조기, 장치 및 복조 방법 |
WO2005117433A1 (en) | 2004-05-12 | 2005-12-08 | Electronics And Telecommunications Research Institute | Apparatus and method for corresponding frequency synchronization in on-channel repeater |
KR100577703B1 (ko) | 2004-08-27 | 2006-05-10 | 삼성전자주식회사 | Vsb 방식 수신기를 위한 반송파 복원장치 및 그 복원방법 |
KR100660839B1 (ko) | 2004-10-07 | 2006-12-26 | 삼성전자주식회사 | Atsc 수신기에서의 결합된 심볼 타이밍 및 캐리어위상 복원 회로 |
JP4519599B2 (ja) | 2004-10-07 | 2010-08-04 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP4374478B2 (ja) | 2005-03-02 | 2009-12-02 | 独立行政法人情報通信研究機構 | 受信装置、受信方法、プログラム、および、情報記録媒体 |
US8036332B2 (en) | 2007-03-30 | 2011-10-11 | 4472314 Canada Inc. | Communication signal symbol timing error detection and recovery |
CN101320982B (zh) * | 2007-06-06 | 2011-12-07 | 智原科技股份有限公司 | 时序回复参数产生电路以及信号接收电路 |
US8559563B2 (en) | 2008-01-14 | 2013-10-15 | Thomson Licensing | Pseudo tone-based symbol timing recovery and carrier tracking loop detectors for vestigial sideband receivers |
CN101431506B (zh) * | 2008-12-17 | 2012-09-05 | 炬力集成电路设计有限公司 | 一种调整副载波的频率步长值的方法和装置 |
US9571326B2 (en) | 2009-03-05 | 2017-02-14 | SeeScan, Inc. | Method and apparatus for high-speed data transfer employing self-synchronizing quadrature amplitude modulation |
US8761325B2 (en) * | 2010-06-28 | 2014-06-24 | Ben WILLCOCKS | Digital receivers |
US9634878B1 (en) | 2011-09-08 | 2017-04-25 | See Scan, Inc. | Systems and methods for data transfer using self-synchronizing quadrature amplitude modulation (QAM) |
FR3032323B1 (fr) * | 2015-02-03 | 2017-03-17 | Commissariat Energie Atomique | Procede et dispositif de modulation de phase d'une onde porteuse et application a la detection de signaux numeriques multi-niveaux codes en phase |
CN105871532B (zh) * | 2016-03-30 | 2019-02-01 | 电子科技大学 | 一种相位同步装置及方法 |
CN111917679B (zh) * | 2020-08-12 | 2021-04-06 | 雅泰歌思(上海)通讯科技有限公司 | 在低信噪比条件下载波及符号定时同步方法 |
KR102480018B1 (ko) * | 2021-03-23 | 2022-12-22 | 한국과학기술원 | 주입 잠금 발진기의 발진 주파수 교정 장치 |
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US5268761A (en) * | 1992-08-19 | 1993-12-07 | Rca Thomson Licensing Corporation | Automatic gain control system for a high definition television signal receiver including an adaptive equalizer |
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-
1994
- 1994-03-21 GB GB9405487A patent/GB9405487D0/en active Pending
-
1995
- 1995-02-22 TW TW084101642A patent/TW256978B/zh not_active IP Right Cessation
- 1995-02-22 TW TW084101640A patent/TW265505B/zh not_active IP Right Cessation
- 1995-03-01 TW TW084101901A patent/TW306112B/zh not_active IP Right Cessation
- 1995-03-01 TW TW084101919A patent/TW285807B/zh not_active IP Right Cessation
- 1995-03-13 BR BR9507070A patent/BR9507070A/pt not_active IP Right Cessation
- 1995-03-13 KR KR1019960705402A patent/KR100361723B1/ko not_active IP Right Cessation
- 1995-03-13 KR KR1019960705202A patent/KR100339110B1/ko not_active IP Right Cessation
- 1995-03-13 CN CN95192585A patent/CN1085467C/zh not_active Expired - Fee Related
- 1995-03-13 JP JP52468595A patent/JP4044132B2/ja not_active Expired - Fee Related
- 1995-03-13 DE DE69527419T patent/DE69527419T2/de not_active Expired - Lifetime
- 1995-03-13 BR BR9507202A patent/BR9507202A/pt not_active IP Right Cessation
- 1995-03-13 CN CN95192186A patent/CN1071525C/zh not_active Expired - Fee Related
- 1995-03-13 EP EP95914020A patent/EP0801866B1/en not_active Expired - Lifetime
- 1995-03-13 DE DE69530839T patent/DE69530839D1/de not_active Expired - Lifetime
- 1995-03-13 WO PCT/US1995/003133 patent/WO1995026105A1/en active IP Right Grant
- 1995-03-13 JP JP52468495A patent/JP3649735B2/ja not_active Expired - Fee Related
- 1995-03-13 EP EP95912905A patent/EP0752172B1/en not_active Expired - Lifetime
- 1995-03-13 KR KR1019960705401A patent/KR100357355B1/ko not_active IP Right Cessation
- 1995-03-13 CN CN95192209A patent/CN1057885C/zh not_active Expired - Fee Related
- 1995-03-13 JP JP52468995A patent/JP3651896B2/ja not_active Expired - Fee Related
- 1995-03-13 EP EP95913671A patent/EP0752173B1/en not_active Expired - Lifetime
- 1995-03-13 CN CN95192188A patent/CN1059992C/zh not_active Expired - Fee Related
- 1995-03-13 DE DE69535494T patent/DE69535494T2/de not_active Expired - Lifetime
- 1995-03-13 WO PCT/US1995/003155 patent/WO1995026101A1/en active IP Right Grant
- 1995-03-13 KR KR1019960705203A patent/KR100384210B1/ko not_active IP Right Cessation
- 1995-03-13 JP JP52468695A patent/JP3651895B2/ja not_active Expired - Fee Related
- 1995-03-13 WO PCT/US1995/003131 patent/WO1995026074A1/en active IP Right Grant
- 1995-03-13 EP EP95914709A patent/EP0752185B1/en not_active Expired - Lifetime
- 1995-03-13 DE DE69532170T patent/DE69532170T2/de not_active Expired - Lifetime
- 1995-03-13 WO PCT/US1995/003132 patent/WO1995026075A1/en active IP Right Grant
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