CN1157943C - 高清晰度电视接收机中帮助载波获取的可选增益调整 - Google Patents

高清晰度电视接收机中帮助载波获取的可选增益调整 Download PDF

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Publication number
CN1157943C
CN1157943C CNB008104735A CN00810473A CN1157943C CN 1157943 C CN1157943 C CN 1157943C CN B008104735 A CNB008104735 A CN B008104735A CN 00810473 A CN00810473 A CN 00810473A CN 1157943 C CN1157943 C CN 1157943C
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CN
China
Prior art keywords
signal
value
television signal
amplification level
power value
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
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CNB008104735A
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English (en)
Chinese (zh)
Other versions
CN1361981A (zh
Inventor
A・R・布伊莱特
A·R·布伊莱特
斯图尔特
J·S·斯图尔特
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RCA Licensing Corp
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RCA Licensing Corp
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Publication date
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Publication of CN1361981A publication Critical patent/CN1361981A/zh
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Publication of CN1157943C publication Critical patent/CN1157943C/zh
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    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • 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
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • 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
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Television Receiver Circuits (AREA)
  • Television Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
CNB008104735A 1999-07-16 2000-07-13 高清晰度电视接收机中帮助载波获取的可选增益调整 Expired - Fee Related CN1157943C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14441399P 1999-07-16 1999-07-16
US60/144413 1999-07-16

Publications (2)

Publication Number Publication Date
CN1361981A CN1361981A (zh) 2002-07-31
CN1157943C true CN1157943C (zh) 2004-07-14

Family

ID=22508476

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008104735A Expired - Fee Related CN1157943C (zh) 1999-07-16 2000-07-13 高清晰度电视接收机中帮助载波获取的可选增益调整

Country Status (10)

Country Link
EP (1) EP1197077B8 (enExample)
JP (1) JP4980528B2 (enExample)
KR (1) KR100720983B1 (enExample)
CN (1) CN1157943C (enExample)
AU (1) AU5933000A (enExample)
DE (1) DE60022755T2 (enExample)
MX (1) MXPA02000555A (enExample)
MY (1) MY128892A (enExample)
TW (1) TW496084B (enExample)
WO (1) WO2001006774A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100806536B1 (ko) * 2002-01-11 2008-02-25 에이저 시스템즈 (아일랜드) 리서치 리미티드 데이터 수신기들 및 전송기들에서의 타이밍 제어
KR100486269B1 (ko) * 2002-10-07 2005-04-29 삼성전자주식회사 고 선명 텔레비전의 반송파 복구 장치 및 방법.
BR0316557A (pt) * 2002-11-26 2005-10-04 Thomson Licensing Sa Detector de bloqueio de laço de monitoração de portadora
CN1317875C (zh) * 2003-09-26 2007-05-23 南京Lg新港显示有限公司 载波复原装置
US7061276B2 (en) * 2004-04-02 2006-06-13 Teradyne, Inc. Digital phase detector
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
TWI398166B (zh) * 2009-04-07 2013-06-01 Himax Media Solutions Inc 數位接收器及其相關方法
CN102724514B (zh) * 2012-05-16 2015-04-08 浙江大华技术股份有限公司 一种模拟视频信号传输损耗补偿方法、装置及接收设备
CN110716182A (zh) * 2018-07-11 2020-01-21 同方威视技术股份有限公司 基于数字控制的智能自动频率控制设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546138A (en) * 1993-12-29 1996-08-13 Zenith Electronics Corporation AGC system with overriding, maximum gain during an initial interval to enhance signal acquisition
US5410368A (en) * 1993-12-29 1995-04-25 Zenith Electronics Corp. Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval
US5627604A (en) * 1994-04-04 1997-05-06 Zenith Electronics Corporation Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot

Also Published As

Publication number Publication date
AU5933000A (en) 2001-02-05
DE60022755D1 (de) 2005-10-27
DE60022755T2 (de) 2006-05-18
MY128892A (en) 2007-02-28
EP1197077B8 (en) 2005-11-30
MXPA02000555A (es) 2002-07-02
JP4980528B2 (ja) 2012-07-18
EP1197077A1 (en) 2002-04-17
WO2001006774A1 (en) 2001-01-25
JP2003505948A (ja) 2003-02-12
KR20020024304A (ko) 2002-03-29
CN1361981A (zh) 2002-07-31
EP1197077B1 (en) 2005-09-21
TW496084B (en) 2002-07-21
KR100720983B1 (ko) 2007-05-23

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040714

Termination date: 20170713

CF01 Termination of patent right due to non-payment of annual fee