MX9305030A - Sistema automatico de control de ganancia para un receptor de señal de television de alta definicion, que incluye un ecualizador adaptable. - Google Patents

Sistema automatico de control de ganancia para un receptor de señal de television de alta definicion, que incluye un ecualizador adaptable.

Info

Publication number
MX9305030A
MX9305030A MX9305030A MX9305030A MX9305030A MX 9305030 A MX9305030 A MX 9305030A MX 9305030 A MX9305030 A MX 9305030A MX 9305030 A MX9305030 A MX 9305030A MX 9305030 A MX9305030 A MX 9305030A
Authority
MX
Mexico
Prior art keywords
high definition
gain control
automatic gain
control system
television signal
Prior art date
Application number
MX9305030A
Other languages
English (en)
Inventor
Hugh Edward White
Original Assignee
Rca Thomson Licensing Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rca Thomson Licensing Corp filed Critical Rca Thomson Licensing Corp
Publication of MX9305030A publication Critical patent/MX9305030A/es

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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3078—Circuits generating control signals for digitally modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H04N11/30—High-definition television systems with transmission of the extra information by means of quadrature modulation
    • 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
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Un receptor de televisión de alta definición, que incluye circuitos procesadores de señal analógica y digital, recibe una señal de televisión analógica, de alta definición, representante de información de televisión digital. La señal recibida contiene información de alta prioridad, de banda angosta, e información de baja prioridad, de banda ancha. Se desarrolla una señal de control automático de ganancia (AGC) a partir de la información de banda angosta, como una función de los valores de los coeficientes de un ecualizador adaptable asociado, y como una función del número de muestras saturadas procesadas por los convertidores de analógico a digital de entrada, asociados.
MX9305030A 1992-08-19 1993-08-18 Sistema automatico de control de ganancia para un receptor de señal de television de alta definicion, que incluye un ecualizador adaptable. MX9305030A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/932,131 US5268761A (en) 1992-08-19 1992-08-19 Automatic gain control system for a high definition television signal receiver including an adaptive equalizer

Publications (1)

Publication Number Publication Date
MX9305030A true MX9305030A (es) 1994-03-31

Family

ID=25461826

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9305030A MX9305030A (es) 1992-08-19 1993-08-18 Sistema automatico de control de ganancia para un receptor de señal de television de alta definicion, que incluye un ecualizador adaptable.

Country Status (9)

Country Link
US (1) US5268761A (es)
EP (1) EP0583968B1 (es)
JP (1) JP3604709B2 (es)
KR (1) KR100284510B1 (es)
CN (1) CN1051893C (es)
DE (1) DE69327276T2 (es)
ES (1) ES2139632T3 (es)
MX (1) MX9305030A (es)
SG (1) SG89224A1 (es)

Families Citing this family (24)

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Publication number Priority date Publication date Assignee Title
US5386239A (en) * 1993-05-03 1995-01-31 Thomson Consumer Electronics, Inc. Multiple QAM digital television signal decoder
GB9405487D0 (en) * 1994-03-21 1994-05-04 Rca Thomson Licensing Corp VSB demodulator
US6512555B1 (en) * 1994-05-04 2003-01-28 Samsung Electronics Co., Ltd. Radio receiver for vestigal-sideband amplitude-modulation digital television signals
US6104442A (en) * 1994-06-28 2000-08-15 Samsung Electronics Co., Ltd. Radio receiver for receiving both VSB and QAM digital HDTV signals
US20040213358A1 (en) * 1994-05-23 2004-10-28 Samsung Electronics Co., Ltd. Radio receiver for receiving both VSB and QAM digital HDTV signals
US5550596A (en) * 1994-11-25 1996-08-27 Thomson Multimedia Sa Digital television signal processing system including a co-channel rejection filter
FI98026C (fi) * 1995-11-08 1997-03-25 Nokia Technology Gmbh Menetelmä QAM-vastaanottimen yhteydessä ja QAM-vastaanotin
US6005640A (en) * 1996-09-27 1999-12-21 Sarnoff Corporation Multiple modulation format television signal receiver system
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
US6275458B1 (en) * 1999-02-18 2001-08-14 Terrence L. Wong Method and apparatus for reading and writing a multi-level signal from an optical disc
JP4359795B2 (ja) * 1999-03-12 2009-11-04 ソニー株式会社 デジタル信号受信装置および方法、並びに記録媒体
US6259319B1 (en) * 1999-08-19 2001-07-10 Lucent Technologies Inc. Adaptive gain and/or phase adjustment control system and method
KR100452308B1 (ko) * 2000-06-13 2004-10-12 마쯔시다덴기산교 가부시키가이샤 디지털 방송수신장치
US7269216B2 (en) * 2001-06-05 2007-09-11 Kennedy Rodney A Blind magnitude equalizer for segment sync-based timing recovery of receivers
US7443455B2 (en) * 2003-12-30 2008-10-28 Texas Instruments Incorporated Automatic gain control based on multiple input references in a video decoder
US8331891B2 (en) 2005-03-24 2012-12-11 Thomson Licensing Non-linear signal distortion detection using multiple signal to noise ratio measurement sources
KR100805404B1 (ko) 2005-08-31 2008-02-20 엘지전자 주식회사 영상표시기기의 모듈 제어장치 및 방법
CN101600070B (zh) * 2008-06-05 2011-01-19 联咏科技股份有限公司 视频信号调节电路
US8204156B2 (en) * 2008-12-31 2012-06-19 Intel Corporation Phase error detection with conditional probabilities
US8493509B2 (en) * 2011-06-14 2013-07-23 Sigear Europe Sarl Digital video formatting scheme for analog format video signals using adaptive filtering
CN102638663A (zh) * 2012-03-30 2012-08-15 深圳创维－Rgb电子有限公司 数字电视重复频道自动跳台设置方法和装置
JP6629100B2 (ja) * 2016-02-26 2020-01-15 キヤノンメディカルシステムズ株式会社 放射線検出装置および放射線検出システム
US10432434B2 (en) * 2016-07-20 2019-10-01 Tektronix, Inc. Multi-band noise reduction systems and methods
US11687474B2 (en) * 2021-02-23 2023-06-27 Rohde & Schwarz Gmbh & Co. Kg Signal processing system and signal processing method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644671A (en) * 1979-09-21 1981-04-23 Seiko Epson Corp Ink-jet head
JPS60217767A (ja) * 1984-04-13 1985-10-31 Matsushita Electric Ind Co Ltd テレビジヨン受像機
US4628362A (en) * 1985-05-02 1986-12-09 American Dynamics Corporation Combined video AGC and digitizing circuit
US4761687A (en) * 1987-05-06 1988-08-02 Rca Licensing Corporation Automatic gain control delay circuit for a video signal processor
US4864244A (en) * 1987-09-21 1989-09-05 Nec Corporation Stepped square-QAM demodulator utilizing all signal points to generate control signals
US5043805A (en) * 1988-04-04 1991-08-27 Zenith Electronics Corporation TV signal transmission systems and methods
US5134464A (en) * 1990-11-16 1992-07-28 North American Philips Corporation Method and apparatus for the transmission and reception of a multicarrier digital television signal
US5040211A (en) * 1988-10-13 1991-08-13 Massachusetts Institute Of Technology Reliable television transmission through analog channels
US4905255A (en) * 1989-01-03 1990-02-27 American Telephone And Telegraph Company Decision directed gain control
JPH0477180A (ja) * 1990-07-17 1992-03-11 Nec Corp ゴースト除去回路
US5175626A (en) * 1991-07-25 1992-12-29 Rca Thomson Licensing Corporation Apparatus providing a clock signal for a digital television receiver in response to a channel change

Also Published As

Publication number Publication date
EP0583968A3 (en) 1994-05-18
SG89224A1 (en) 2002-06-18
KR100284510B1 (ko) 2001-03-15
EP0583968B1 (en) 1999-12-15
CN1051893C (zh) 2000-04-26
ES2139632T3 (es) 2000-02-16
KR940005157A (ko) 1994-03-16
JP3604709B2 (ja) 2004-12-22
DE69327276D1 (de) 2000-01-20
DE69327276T2 (de) 2000-04-13
JPH06209440A (ja) 1994-07-26
CN1083995A (zh) 1994-03-16
US5268761A (en) 1993-12-07
EP0583968A2 (en) 1994-02-23

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees