ES2106856T3 - Emisor y receptor para sistema de television compatible de alta definicion. - Google Patents

Emisor y receptor para sistema de television compatible de alta definicion.

Info

Publication number
ES2106856T3
ES2106856T3 ES92904743T ES92904743T ES2106856T3 ES 2106856 T3 ES2106856 T3 ES 2106856T3 ES 92904743 T ES92904743 T ES 92904743T ES 92904743 T ES92904743 T ES 92904743T ES 2106856 T3 ES2106856 T3 ES 2106856T3
Authority
ES
Spain
Prior art keywords
qam
signal
ntsc
information
modulated
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 - Lifetime
Application number
ES92904743T
Other languages
English (en)
Inventor
Hugh Edward White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of ES2106856T3 publication Critical patent/ES2106856T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H04L27/364—Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0098—Unequal error protection
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Color Television Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Amplitude Modulation (AREA)
  • Details Of Television Scanning (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Gyroscopes (AREA)
  • Analogue/Digital Conversion (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Radio Transmission System (AREA)

Abstract

UN SISTEMA DE HDTV COMPATIBLE CON UN ANCHO DE BANDA NTSC QUE UTILIZA UNA MODULACION DE AMPLITUD EN CUADRATURA MULTIPLE (QAM). SE MODULA UNA PRIMERA PORTADORA DE QAM SUPRIMIDA (14) CON INFORMACION DE ALTA PRIORIDAD QUE INCLUYA PREDOMINANTEMENTE INFORMACION DE BAJA FRECUENCIA. SE MODULA UNA SEGUNDA PORTADORA QAM SUPRIMIDA (34) CON INFORMACION DE BAJA PRIORIDAD QUE INCLUYA PREDOMINANTEMENTE INFORMACION DE ALTA FRECUENCIA. LA SEÑAL QAM DE ALTA PRIORIDAD MUESTRA UNA MAYOR AMPLITUD Y UN ANCHO DE BANDA MAS ESTRECHO QUE LA SEÑAL QAM DE BAJA PRIORIDAD Y SE ENCUENTRA COLOCADA EN LA PORCION INFERIOR DEL ESPECTRO DE FRECUENCIA DE QAM MULTIPLE NORMALMENTE OCUPADO POR LA BANDA LATERAL RESIDUAL DE UNA SEÑAL DE TELEVISION NTSC ESTANDAR. EL ESPECTRO DE FRECUENCIA DE LA SEÑAL QAM MULTIPLE (18,20) PRESENTA UNA ATENUACION DE SEÑAL A FRECUENCIAS ASOCIADAS A LA INFORMACION DE ALTA ENERGIA DE UNA SEÑAL NTSC ESTANDAR, EJ., FRECUENCIAS ALREDEDOR DE LAS PORTADORAS DE SONIDO E IMAGEN NTSC.
ES92904743T 1991-02-04 1991-12-27 Emisor y receptor para sistema de television compatible de alta definicion. Expired - Lifetime ES2106856T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/650,329 US5287180A (en) 1991-02-04 1991-02-04 Modulator/demodulater for compatible high definition television system

Publications (1)

Publication Number Publication Date
ES2106856T3 true ES2106856T3 (es) 1997-11-16

Family

ID=24608439

Family Applications (2)

Application Number Title Priority Date Filing Date
ES92904743T Expired - Lifetime ES2106856T3 (es) 1991-02-04 1991-12-27 Emisor y receptor para sistema de television compatible de alta definicion.
ES96120804T Expired - Lifetime ES2142010T3 (es) 1991-02-04 1991-12-27 Receptor para sistema de television de alta definicion compatible.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES96120804T Expired - Lifetime ES2142010T3 (es) 1991-02-04 1991-12-27 Receptor para sistema de television de alta definicion compatible.

Country Status (25)

Country Link
US (1) US5287180A (es)
EP (2) EP0771123B1 (es)
JP (1) JP3384802B2 (es)
KR (1) KR100255719B1 (es)
CN (1) CN1037803C (es)
AT (1) ATE158916T1 (es)
AU (1) AU662126B2 (es)
BR (1) BR9107276A (es)
CA (1) CA2101644A1 (es)
CZ (2) CZ282390B6 (es)
DE (2) DE69131995T2 (es)
DK (2) DK0771123T3 (es)
EG (1) EG19708A (es)
ES (2) ES2106856T3 (es)
FI (1) FI933457A7 (es)
HU (1) HUT65171A (es)
MX (1) MX9200475A (es)
MY (1) MY109495A (es)
PL (1) PL167627B1 (es)
PT (1) PT100085B (es)
RU (1) RU2127493C1 (es)
SG (1) SG90697A1 (es)
SK (1) SK279904B6 (es)
TR (1) TR28300A (es)
WO (1) WO1992014343A1 (es)

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US6728467B2 (en) 1992-03-26 2004-04-27 Matsushita Electric Industrial Co., Ltd. Communication system
CN1032099C (zh) 1992-03-26 1996-06-19 松下电器产业株式会社 通信系统
US5802241A (en) 1992-03-26 1998-09-01 Matsushita Electric Industrial Co., Ltd. Communication system
US7158577B1 (en) 1992-03-26 2007-01-02 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38513E1 (en) 1992-03-26 2004-05-11 Matsushita Electric Industrial Co., Ltd. Communication system
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US5264937A (en) * 1992-07-29 1993-11-23 Thomson Consumer Electronics, Inc. Apparatus for time division multiplexed processing of frequency division multiplexed signals
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ATE230184T1 (de) * 1992-09-25 2003-01-15 Matsushita Electric Industrial Co Ltd Übertragung mit mehreren auflösungen, insbesondere für mehrträgersysteme
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JPH07245633A (ja) * 1994-03-04 1995-09-19 Toshiba Corp デジタルデータ受信装置
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US5799037A (en) * 1996-02-16 1998-08-25 David Sarnoff Research Center Inc. Receiver capable of demodulating multiple digital modulation formats
US6005640A (en) * 1996-09-27 1999-12-21 Sarnoff Corporation Multiple modulation format television signal receiver system
KR19980048220A (ko) * 1996-12-17 1998-09-15 구자홍 디지탈 직각 진폭 변조방식의 화상 복합장치
US5946048A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network device for handling digital data over a TV channel
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JP3797510B2 (ja) * 1997-07-16 2006-07-19 ソニー株式会社 通信方法、送信装置、受信装置及びセルラー無線通信システム
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US20030140351A1 (en) * 1998-04-17 2003-07-24 Hoarty W. Leo Cable television system compatible bandwidth upgrade using embedded digital channels
US20030112370A1 (en) * 2001-12-18 2003-06-19 Chris Long Adaptive expanded information capacity for communications systems
US6433835B1 (en) 1998-04-17 2002-08-13 Encamera Sciences Corporation Expanded information capacity for existing communication transmission systems
CN1070012C (zh) * 1998-08-04 2001-08-22 国家科学技术委员会高技术研究发展中心 全数字vsb调制器
US6313772B1 (en) * 1999-08-24 2001-11-06 Thomson Licensing S.A. Complex carrier signal generator for determining cyclic wave shape
KR100539862B1 (ko) * 2001-04-04 2005-12-28 삼성전자주식회사 부호분할다중접속 이동통신시스템에서 데이타 송/수신장치및 방법
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Also Published As

Publication number Publication date
PL167627B1 (pl) 1995-10-31
FI933457A0 (fi) 1993-08-03
DK0570464T3 (da) 1997-10-27
CZ234494A3 (en) 1995-01-18
DE69127828D1 (de) 1997-11-06
EP0771123B1 (en) 2000-02-16
DE69131995T2 (de) 2000-08-17
SK83193A3 (en) 1994-07-06
CN1037803C (zh) 1998-03-18
EP0570464A1 (en) 1993-11-24
WO1992014343A1 (en) 1992-08-20
AU662126B2 (en) 1995-08-24
EP0771123A2 (en) 1997-05-02
KR930703793A (ko) 1993-11-30
AU1271192A (en) 1992-09-07
KR100255719B1 (ko) 2000-05-01
DE69127828T2 (de) 1998-03-05
CN1063985A (zh) 1992-08-26
MX9200475A (es) 1992-08-01
SG90697A1 (en) 2002-08-20
EP0570464B1 (en) 1997-10-01
ES2142010T3 (es) 2000-04-01
JP3384802B2 (ja) 2003-03-10
EP0771123A3 (en) 1997-07-23
DK0771123T3 (da) 2000-06-05
RU2127493C1 (ru) 1999-03-10
MY109495A (en) 1997-02-28
FI933457A7 (fi) 1993-08-03
HUT65171A (en) 1994-04-28
PT100085A (pt) 1994-04-29
US5287180A (en) 1994-02-15
HU9302245D0 (en) 1993-10-28
CZ281295B6 (cs) 1996-08-14
ATE158916T1 (de) 1997-10-15
DE69131995D1 (de) 2000-03-23
CZ152593A3 (en) 1994-12-15
CZ282390B6 (cs) 1997-07-16
CA2101644A1 (en) 1992-08-05
BR9107276A (pt) 1994-04-05
PT100085B (pt) 1999-04-30
TR28300A (tr) 1996-04-08
SK279904B6 (sk) 1999-05-07
EG19708A (en) 1996-02-29
JPH06505372A (ja) 1994-06-16

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