[go: up one dir, main page]

KR950700664A - 디지탈 텔레비젼 신호 수신기용 자동 이득 제어장치(automatic gain control apparatus for a digital television signal receiver) - Google Patents

디지탈 텔레비젼 신호 수신기용 자동 이득 제어장치(automatic gain control apparatus for a digital television signal receiver)

Info

Publication number
KR950700664A
KR950700664A KR1019940702682A KR19940702682A KR950700664A KR 950700664 A KR950700664 A KR 950700664A KR 1019940702682 A KR1019940702682 A KR 1019940702682A KR 19940702682 A KR19940702682 A KR 19940702682A KR 950700664 A KR950700664 A KR 950700664A
Authority
KR
South Korea
Prior art keywords
signal
digital
television
processing means
signal processing
Prior art date
Application number
KR1019940702682A
Other languages
English (en)
Other versions
KR100257475B1 (ko
Inventor
테오더 매티어스 와그너
케빈 마이클 켈리
Original Assignee
에릭 피.헤르만
알 씨 에이 톰슨 라이센싱 코오포레이숀
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 에릭 피.헤르만, 알 씨 에이 톰슨 라이센싱 코오포레이숀 filed Critical 에릭 피.헤르만
Publication of KR950700664A publication Critical patent/KR950700664A/ko
Application granted granted Critical
Publication of KR100257475B1 publication Critical patent/KR100257475B1/ko

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/081—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the additional information signals being transmitted by means of a subcarrier

Landscapes

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

Abstract

아날로그 신호 처리 회로와 디지탈 신호 처리 회로(119,150)를 구비한 고선명 텔레비젼 수신기는 디지탈 텔레비젼 정보를 표현하는 아날로그 고선명 텔레비젼 신호를 수신(110,112)한다. 수신된 신호는 협대역의 고우선순의 정보와 광대역의 저우선순위 정보를 포함한다. 자동 이득 제어(AGC) 신호는 실효값 진폭 검출기(116)에 의해 수신 아날로그 신호로부터 전개(160)된다.

Description

디지탈 텔레비젼 신호 수신기용 자동 이득 제어장치(AUTOMATIC GAIN CONTROL APPARATUS FOR A DIGITAL TELEVISION SIGNAL RECEIVER)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명에 따른 자동 이득 제어장치를 구비한 디지탈 텔레비젼 수신기의 일부분에 대한 블록도, 제 2 도는 제 1 도에서 수신 처리된 호환 가능한 동보 다중 QAM 고선명 텔레비젼 신호에 대한 기저대역 비디오 주파수 스펙트럼도, 제 3 도는 제 1 도 입력 신호 프로세서의 세부 구성 요소를 도시한다.

Claims (6)

  1. 텔레비젼 신호를 수신하는 시스템 장치에 있어서, 디지탈 텔레비젼 정보를 나타내는 아날로그 신호를 수신하기 위한 입력단과, 출력단을 갖는 입력 신호 처리 수단(110,112)과; 상기 입력 신호 처리 수단의 상기 출력단 신호에 응답하는 디지탈 신호 처리 수단(116)과; 상기 디지탈 신호 처리 수단의 출력단 신호에 응답하여 이미지 표현신호를 제공하는 비디오 신호 처리 수단(119,140,144)과; 수신된 신호량의 함수로서 제어 신호를 전개하기 위해 실효값(RMS) 진폭 검출기 수단(116)을 구비하여 상기 디지탈 신호 처리 수단에 제공된 신호량을 자동적으로 제어하는 자동 이득 제어 수단(160)을 구비하는 것을 특징으로 하는 텔레비젼 신호 수신 시스템 장치.
  2. 제 1 항에 있어서, 상기 이미지 표현 신호는 고선명 디지탈 텔레비젼 정보를 표현하고, 기존의 표준 선명도 텔레비젼 신호 채널과 호한 가능한 대역폭을 가지며, 고우선순위 정보를 포함한 협대역 성분과 저우선순위 정보를 포함한 광대역 성분을 갖고; 상기 제어신호는 상기 협대역 성분에서 발생되는 것을 특징으로 하는 텔레비젼 신호 수신 시스템 장치.
  3. 제 2 항에 있어서, 상기 협대역 성분이 직각 진폭 변조(QAM) 신호인것을 특징으로 하는 텔레비젼 신호 수신 시스템 장치.
  4. 제 1 항에 있어서, 상기 디지탈 신호 처리 수단에 의해 처리되도록 상기 아날로그 신호를 다지탈 신호로 변환하는 아날로그 대 디지탈 변환 수단을 추가로 구비 하며, 상기 자동 이득 제어 수단은 상기 아날로그 대 디지탈 변환 수단에 인가된 아날로그 신호의 양을 제어하는 것을 특징으로 하는 텔레비젼 신호 수신 시스템 장치.
  5. 제 1 항에 있어서, 상기 실효값(RMS) 진폭 검출기 수단 앞에 임펄스 잡음 제한 수단을 추가로 구비하는 것을 특징으로 하는 텔레비젼 신호 수신 시스템 장치.
  6. 제 1 항에 있어서, 상기 제어 신호가 상기 입력 신호 처리수단내의RF 단 및 IF단에 대한 이득 제어 입력으로 인가되는 것을 특징으로 하는 텔레비젼 신호 수신 시스템 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940702682A 1992-02-06 1993-01-13 디지탈 텔레비전 신호 수신기용 자동 이득 제어 장치 KR100257475B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US832.126 1992-02-06
US832,126 1992-02-06
US07/832,126 US5235424A (en) 1992-02-06 1992-02-06 Automatic gain control system for a high definition television signal receiver
PCT/US1993/000070 WO1993016553A1 (en) 1992-02-06 1993-01-13 Automatic gain control apparatus for a digital television signal receiver

Publications (2)

Publication Number Publication Date
KR950700664A true KR950700664A (ko) 1995-01-16
KR100257475B1 KR100257475B1 (ko) 2000-06-01

Family

ID=25260761

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940702682A KR100257475B1 (ko) 1992-02-06 1993-01-13 디지탈 텔레비전 신호 수신기용 자동 이득 제어 장치

Country Status (11)

Country Link
US (1) US5235424A (ko)
EP (1) EP0625296A1 (ko)
JP (1) JP3428987B2 (ko)
KR (1) KR100257475B1 (ko)
CN (1) CN1073324C (ko)
CZ (1) CZ281828B6 (ko)
MY (1) MY108916A (ko)
SG (1) SG55026A1 (ko)
SK (1) SK280889B6 (ko)
TW (1) TW199255B (ko)
WO (1) WO1993016553A1 (ko)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90477C (fi) * 1992-03-23 1994-02-10 Nokia Mobile Phones Ltd Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään
JP3264698B2 (ja) * 1992-06-30 2002-03-11 キヤノン株式会社 撮像装置
FI93068C (fi) * 1992-07-27 1995-02-10 Nokia Mobile Phones Ltd Kytkentä häiriöiden haittavaikutusten pienentämiseksi sovitettua suodatinta käyttävissä vastaanottimissa
FI91579C (fi) * 1992-08-20 1994-07-11 Nokia Mobile Phones Ltd Dekoodaus käyttäen lineaarista metriciä ja häiriön estimointia
US5386239A (en) * 1993-05-03 1995-01-31 Thomson Consumer Electronics, Inc. Multiple QAM digital television signal decoder
JPH0775099A (ja) * 1993-05-07 1995-03-17 Philips Electron Nv マルチプレックス直交振幅変調テレビジョン送信用送信方式、送信機及び受信機
US5572264A (en) 1994-02-14 1996-11-05 Hitachi, Ltd. High definition TV signal receiver
JP3371506B2 (ja) * 1994-02-14 2003-01-27 株式会社日立製作所 受信装置
US5469115A (en) * 1994-04-28 1995-11-21 Qualcomm Incorporated Method and apparatus for automatic gain control in a digital receiver
US5461427A (en) * 1994-06-28 1995-10-24 Thomson Consumer Electronics, Inc. Television receiver having the capability to associate any HDTV and any NTSC channel
US5453796A (en) * 1994-06-28 1995-09-26 Thomson Consumer Electronics, Inc. Signal swap apparatus for a television receiver having an HDTV main picture signal processor and an NTSC Pix-in-Pix signal processor
US5563916A (en) * 1995-06-05 1996-10-08 Hitachi America, Ltd. Apparatus and method for varying the slew rate of a digital automatic gain control circuit
FI98026C (fi) * 1995-11-08 1997-03-25 Nokia Technology Gmbh Menetelmä QAM-vastaanottimen yhteydessä ja QAM-vastaanotin
US5692010A (en) * 1996-01-17 1997-11-25 Zenith Electronics Corporation Adaptive equalizer with impulse noise protection
US5805241A (en) * 1996-05-21 1998-09-08 Samsung Electronics Co., Ltd. Noise-immune automatic gain control for QAM radio receivers
US6154503A (en) * 1996-06-07 2000-11-28 Sharp Kk Corporation Automatic gain control system that responds to baseband signal distortion
US6064702A (en) * 1996-07-19 2000-05-16 Kye Systems Corp. Four-stage phase demodulation low frequency wireless mouse device
KR100442232B1 (ko) * 1997-08-28 2004-09-18 엘지전자 주식회사 에이치디티브이의 자동이득 조절장치
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
US6842495B1 (en) 1998-11-03 2005-01-11 Broadcom Corporation Dual mode QAM/VSB receiver
US6226323B1 (en) 1998-11-03 2001-05-01 Broadcom Corporation Technique for minimizing decision feedback equalizer wordlength in the presence of a DC component
US6219088B1 (en) 1998-11-03 2001-04-17 Broadcom Corporation NTSC interference rejection filter
US6438164B2 (en) * 1998-11-03 2002-08-20 Broadcom Corporation Technique for minimizing decision feedback equalizer wordlength in the presence of a DC component
WO2000027066A2 (en) * 1998-11-03 2000-05-11 Broadcom Corporation Dual mode qam/vsb receiver
US6775334B1 (en) 1998-11-03 2004-08-10 Broadcom Corporation Equalization and decision-directed loops with trellis demodulation in high definition TV
US6567118B1 (en) * 2000-10-27 2003-05-20 Scientific-Atlanta, Inc. Frequency agile adaptive automatic gain control circuit
US7133657B2 (en) * 2002-09-26 2006-11-07 Agere Systems Inc. Channel calibrator for use with a quadrature mixing receiver and a method of operation thereof
US7386074B1 (en) * 2003-10-06 2008-06-10 Redpine Signals, Inc. Digital automatic gain control method and apparatus
CN100462727C (zh) * 2004-02-24 2009-02-18 博计电子股份有限公司 适用任意交流信号波形的交流电子负载模拟装置
US7787850B2 (en) * 2007-09-05 2010-08-31 Broadcom Corporation Multi-input multi-output transceiver with power consumption management based on receiver parameter and method for use therewith
EP2045916B1 (en) * 2007-10-01 2014-12-17 JDS Uniphase Corporation Automatic gain control stress measurement for digital carriers
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
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
CN104382596B (zh) * 2014-12-09 2017-03-08 北京银河润泰科技有限公司 对肌电采集设备进行自检的装置、方法及肌电采集设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145713A (ja) * 1984-01-10 1985-08-01 Fujitsu Ltd 自動利得制御方式
US4602374A (en) * 1984-02-27 1986-07-22 Nippon Telegraph & Telephone Public Corporation Multi-level decision circuit
US4551688A (en) * 1984-05-23 1985-11-05 Rockwell International Corporation Delay compensated automatic gain control
US4718086A (en) * 1986-03-27 1988-01-05 Rca Corporation AGC in sound channel of system for processing a scrambled video signal
US4761687A (en) * 1987-05-06 1988-08-02 Rca Licensing Corporation Automatic gain control delay circuit for a video signal processor
US5043805A (en) * 1988-04-04 1991-08-27 Zenith Electronics Corporation TV signal transmission systems and methods
US4989074A (en) * 1988-09-27 1991-01-29 Matsushita Electric Industrial Co., Ltd. Digital automatic gain control apparatus
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
US5083304A (en) * 1990-09-28 1992-01-21 Motorola, Inc. Automatic gain control apparatus and method
US5287180A (en) * 1991-02-04 1994-02-15 General Electric Company Modulator/demodulater for compatible high definition television system

Also Published As

Publication number Publication date
KR100257475B1 (ko) 2000-06-01
CN1075583A (zh) 1993-08-25
WO1993016553A1 (en) 1993-08-19
SK280889B6 (sk) 2000-09-12
JPH07503828A (ja) 1995-04-20
CZ281828B6 (cs) 1997-02-12
MY108916A (en) 1996-11-30
CZ186094A3 (en) 1994-12-15
CN1073324C (zh) 2001-10-17
JP3428987B2 (ja) 2003-07-22
TW199255B (en) 1993-02-01
SG55026A1 (en) 1998-12-21
US5235424A (en) 1993-08-10
SK93394A3 (en) 1995-01-12
EP0625296A1 (en) 1994-11-23

Similar Documents

Publication Publication Date Title
KR950700664A (ko) 디지탈 텔레비젼 신호 수신기용 자동 이득 제어장치(automatic gain control apparatus for a digital television signal receiver)
KR940005157A (ko) 적응형 균등화기를 포함하는 고품위 텔레비젼 신호 수신기용 자동 이득 제어시스템
US3988679A (en) Wideband receiving system including multi-channel filter for eliminating narrowband interference
KR870009584A (ko) 비데오 신호 처리 시스템
US5339452A (en) Switching diversity reception system
KR840003950A (ko) 디지탈 자동 이득 제어장치
KR930703798A (ko) 텔레비젼 수상기
KR840003947A (ko) 디지탈 수신기
GB2234406A (en) Receiver with O/P level dependent loop gain
EP0766418A3 (en) Digital satellite broadcasting receiver
KR920022884A (ko) 텔레비젼 음향 rf 신호, 방송 fm rf 신호 및 국립기상 서비스 fm rf 신호의 오디오 레벨 등화장치
CA2096476C (en) Receiver circuit for digital and analog modulated signal
KR920702081A (ko) 자동 이득 제어 회로
KR910009055A (ko) 영상신호잡음 저감회로
GB2110489A (en) Automatic gain control for fm signals
KR960013732B1 (ko) 비디오 신호 처리 시스템의 자동 이득 제어 장치
KR880013391A (ko) 비데오 신호 처리 시스템
US2573248A (en) Television receiver
KR850000873A (ko) 케이블 텔레비젼용 음량조정장치 및 방법
US4104594A (en) Modified A. M. detector
EP0797306A2 (en) Reception apparatus for A/D conversion of a received signal
KR950030650A (ko) 에이치디티브이(hdtv) 수신기의 자동이득 조절장치
KR0176633B1 (ko) 디지탈 텔레비젼 수상기의 2중 자동 이득 조절회로
KR940008506A (ko) 위성 방송 수신기의 입력 레벨 표시 회로
JPS57180216A (en) Agc circuit for television receiver

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 19940805

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19971222

Comment text: Request for Examination of Application

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19991201

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20000302

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20000303

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20030210

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20040202

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 20050207

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 20060209

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 20070223

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 20080225

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20090225

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 20100223

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20110225

Start annual number: 12

End annual number: 12

FPAY Annual fee payment

Payment date: 20120221

Year of fee payment: 13

PR1001 Payment of annual fee

Payment date: 20120221

Start annual number: 13

End annual number: 13

EXPY Expiration of term
PC1801 Expiration of term

Termination date: 20131009

Termination category: Expiration of duration