CN1171449C - 用于高清晰度电视接收机的解调器 - Google Patents

用于高清晰度电视接收机的解调器 Download PDF

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Publication number
CN1171449C
CN1171449C CNB001316710A CN00131671A CN1171449C CN 1171449 C CN1171449 C CN 1171449C CN B001316710 A CNB001316710 A CN B001316710A CN 00131671 A CN00131671 A CN 00131671A CN 1171449 C CN1171449 C CN 1171449C
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CN
China
Prior art keywords
signal
phase
pilot frequency
output
network
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Expired - Lifetime
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CNB001316710A
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English (en)
Chinese (zh)
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CN1295401A (zh
Inventor
Լ����S��������˹
约翰·S·斯图尔特
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THOMSON LICENSING CORP
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THOMSON LICENSING CORP
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Publication of CN1295401A publication Critical patent/CN1295401A/zh
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Systems (AREA)
CNB001316710A 1999-10-26 2000-10-19 用于高清晰度电视接收机的解调器 Expired - Lifetime CN1171449C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/427,316 US6707861B1 (en) 1999-10-26 1999-10-26 Demodulator for an HDTV receiver
US09/427,316 1999-10-26

Publications (2)

Publication Number Publication Date
CN1295401A CN1295401A (zh) 2001-05-16
CN1171449C true CN1171449C (zh) 2004-10-13

Family

ID=23694341

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001316710A Expired - Lifetime CN1171449C (zh) 1999-10-26 2000-10-19 用于高清晰度电视接收机的解调器

Country Status (7)

Country Link
US (1) US6707861B1 (enExample)
JP (1) JP4651798B2 (enExample)
KR (1) KR100651050B1 (enExample)
CN (1) CN1171449C (enExample)
MX (1) MXPA00010469A (enExample)
MY (1) MY124713A (enExample)
SG (1) SG97952A1 (enExample)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7034893B2 (en) * 2001-03-30 2006-04-25 Broadcom Corporation Method and apparatus for reception of terrestrial digital television signals
US7675994B2 (en) * 2001-04-02 2010-03-09 Koninklijke Philips Electronics N.V. Packet identification mechanism at the transmitter and receiver for an enhanced ATSC 8-VSB system
MXPA03009276A (es) * 2001-04-16 2004-02-12 Thomson Licensing Sa CONTROL DE GANANCIA PARA UN DESMODULADOR DE TELEVISIoN DE ALTA DEFINICIoN.
KR100425104B1 (ko) * 2001-10-06 2004-03-30 엘지전자 주식회사 반송파 복구 장치
TW543328B (en) * 2001-12-10 2003-07-21 Silicon Integrated Sys Corp TV decoder
US7079657B2 (en) * 2002-02-26 2006-07-18 Broadcom Corporation System and method of performing digital multi-channel audio signal decoding
US7006806B2 (en) * 2002-02-26 2006-02-28 Broadcom Corporation System and method for SAP FM demodulation
KR100442255B1 (ko) * 2002-02-27 2004-07-30 엘지전자 주식회사 채널 등화 장치
KR100407976B1 (ko) * 2002-02-28 2003-12-01 엘지전자 주식회사 디지털 ｔｖ 수신기
KR20040006309A (ko) * 2002-07-11 2004-01-24 엘지전자 주식회사 디지털 ｔｖ 수신기에서의 ｖｓｂ 복조 장치
US7366265B2 (en) * 2002-08-29 2008-04-29 Thomson Licensing System for detecting the characteristics of a time varying multipath component
KR100499480B1 (ko) * 2002-10-31 2005-07-05 엘지전자 주식회사 Ｖｓｂ 수신 시스템에서의 반송파 복구 장치
KR100459142B1 (ko) * 2002-11-27 2004-12-03 엘지전자 주식회사 디지털 티브이의 심볼 클럭 복구 장치
KR100499491B1 (ko) * 2002-11-27 2005-07-05 엘지전자 주식회사 디지털 티브이 수신기
KR100510665B1 (ko) * 2002-12-28 2005-08-31 엘지전자 주식회사 디지털 ｔｖ의 위상 오차 추적 장치 및 방법
EP1439658A1 (en) * 2003-01-17 2004-07-21 Telefonaktiebolaget LM Ericsson (publ) A signal processing apparatus and method for decision directed symbol synchronisation
US20050027771A1 (en) * 2003-07-30 2005-02-03 Broadcom Corporation System and method for approximating division
US7489362B2 (en) * 2003-03-04 2009-02-10 Broadcom Corporation Television functionality on a chip
KR100525002B1 (ko) 2004-01-19 2005-10-31 삼성전자주식회사 파일럿 신호가 왜곡된 채널 환경에서도 반송파를 복조하기위한 알고리즘 및 그 복조 장치
US8732788B2 (en) * 2004-05-21 2014-05-20 Broadcom Corporation Integrated set-top box
KR100577703B1 (ko) * 2004-08-27 2006-05-10 삼성전자주식회사 Ｖｓｂ 방식 수신기를 위한 반송파 복원장치 및 그 복원방법
KR100631203B1 (ko) 2004-10-07 2006-10-04 삼성전자주식회사 Ｖｓｂ 방식 수신기를 위한 반송파 및 심볼 타이밍복원장치 그리고 그 복원방법
KR100594296B1 (ko) * 2004-10-12 2006-06-30 삼성전자주식회사 디지털 텔레비전 수신 장치의 동기신호 검출기 및 그 방법
FR2877181B1 (fr) * 2004-10-12 2014-05-30 Samsung Electronics Co Ltd Recepteur de television numerique, procede de generation de signaux de synchronisation et detecteur de signal de synchronisation dans ce recepteur
CN1798283B (zh) * 2004-12-20 2010-11-24 三星电子株式会社 一种数字多媒体信号接收机及其接收方法
US7983354B2 (en) * 2005-11-25 2011-07-19 Samsung Electronics Co., Ltd. Digital broadcast transmitter/receiver having an improved receiving performance and signal processing method thereof
US20100283918A1 (en) * 2007-12-27 2010-11-11 Benyuan Zhang Apparatus and method for estimating carrier frequency error
US20090177852A1 (en) * 2008-01-09 2009-07-09 Mediatek Inc. Data block receiver and method for decoding data block
US8280330B2 (en) * 2009-12-30 2012-10-02 Quintic Holdings Crystal-less clock generation for radio frequency receivers
WO2011091602A1 (zh) * 2010-01-29 2011-08-04 联发科技股份有限公司 电视信号处理装置与电视信号处理方法
US8666001B2 (en) * 2011-07-15 2014-03-04 Motorola Solutions, Inc. Method and apparatus for updating symbol recovery parameters and correcting symbol timing misalignment
US8611407B2 (en) * 2011-11-01 2013-12-17 Intel Corporation Phase detection in digital communication receivers
CN111357185B (zh) * 2017-11-15 2023-09-29 西门子股份公司 用于多电平转换器的脉冲宽度调制控制

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3241098B2 (ja) * 1992-06-12 2001-12-25 株式会社東芝 多方式対応の受信装置
GB9405487D0 (en) 1994-03-21 1994-05-04 Rca Thomson Licensing Corp VSB demodulator
US5706057A (en) * 1994-03-21 1998-01-06 Rca Thomson Licensing Corporation Phase detector in a carrier recovery network for a vestigial sideband signal
KR0124594B1 (ko) 1994-04-12 1997-12-01 구자홍 고선명 텔레비젼 수상기의 복조시스템
US5606579A (en) 1994-05-23 1997-02-25 Samsung Electronics Co., Ltd. Digital VSB detector with final IF carrier at submultiple of symbol rate, as for HDTV receiver
JP3306736B2 (ja) * 1995-02-20 2002-07-24 日本電信電話株式会社 周波数オフセット補償回路
DE19522231A1 (de) 1995-06-20 1997-01-09 Bosch Gmbh Robert Frequenz- und Phasenregelkreis
KR0157531B1 (ko) * 1995-07-14 1998-11-16 김광호 텔레비젼신호 수신기에서 디지탈 반송파 복구 장치 및 방법
KR0147661B1 (ko) * 1995-08-30 1998-09-15 김광호 데이타 세그먼트 동기 검출회로 및 그 방법
KR0155900B1 (ko) 1995-10-18 1998-11-16 김광호 위상에러검출방법 및 위상 트래킹 루프회로
JP3503722B2 (ja) * 1996-05-17 2004-03-08 パイオニア株式会社 多値ディジタル伝送システム
KR100233658B1 (ko) 1996-10-21 1999-12-01 윤종용 고선명 텔레비젼 수신기의 반송파 복구시간을 줄이는 방법
GB2331210A (en) * 1997-09-12 1999-05-12 Daewoo Electronics Co Ltd Timing recovery in vestigial sideband modulation
US6356598B1 (en) * 1998-08-26 2002-03-12 Thomson Licensing S.A. Demodulator for an HDTV receiver
CN1187964C (zh) 1997-10-31 2005-02-02 汤姆森许可公司 用于消除所接收的高清晰电视信号中的直流偏置的网络
AU1271099A (en) * 1997-10-31 1999-05-24 Thomson Consumer Electronics, Inc Segment sync recovery network for an hdtv receiver
CN1143523C (zh) 1997-10-31 2004-03-24 汤姆森许可公司 用于高清晰度电视接收机的同信道干扰检测网络
US6298100B1 (en) * 1999-10-26 2001-10-02 Thomson Licensing S.A. Phase error estimation method for a demodulator in an HDTV receiver

Also Published As

Publication number Publication date
JP2001168932A (ja) 2001-06-22
MXPA00010469A (es) 2002-07-22
KR20010040076A (ko) 2001-05-15
JP4651798B2 (ja) 2011-03-16
CN1295401A (zh) 2001-05-16
KR100651050B1 (ko) 2006-11-28
US6707861B1 (en) 2004-03-16
MY124713A (en) 2006-06-30
SG97952A1 (en) 2003-08-20

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Granted publication date: 20041013