FI933457A - Modulator/demodulator foer kompatibelt hoegdefinitionstelevsionssystem - Google Patents

Modulator/demodulator foer kompatibelt hoegdefinitionstelevsionssystem Download PDF

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Publication number
FI933457A
FI933457A FI933457A FI933457A FI933457A FI 933457 A FI933457 A FI 933457A FI 933457 A FI933457 A FI 933457A FI 933457 A FI933457 A FI 933457A FI 933457 A FI933457 A FI 933457A
Authority
FI
Finland
Prior art keywords
information
kompatibelt
hoegdefinitionstelevsionssystem
foer
demodulator
Prior art date
Application number
FI933457A
Other languages
English (en)
Other versions
FI933457A0 (fi
Inventor
Hugh Edward White
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of FI933457A publication Critical patent/FI933457A/fi
Publication of FI933457A0 publication Critical patent/FI933457A0/fi

Links

Classifications

    • 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
    • H04N7/12—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
    • 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
    • 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
    • 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

  • Signal Processing (AREA)
  • Engineering & Computer Science (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)
  • Analogue/Digital Conversion (AREA)
  • Gyroscopes (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Color Television Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Radio Transmission System (AREA)
  • Amplitude Modulation (AREA)
  • Television Signal Processing For Recording (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Details Of Television Scanning (AREA)
FI933457A 1991-02-04 1993-08-03 Modulator/demodulator foer kompatibelt hoegdefinitionstelevsionssystem FI933457A0 (fi)

Applications Claiming Priority (2)

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
PCT/US1991/009823 WO1992014343A1 (en) 1991-02-04 1991-12-27 Modulator/demodulator for compatible high definition television system

Publications (2)

Publication Number Publication Date
FI933457A true FI933457A (fi) 1993-08-03
FI933457A0 FI933457A0 (fi) 1993-08-03

Family

ID=24608439

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933457A FI933457A0 (fi) 1991-02-04 1993-08-03 Modulator/demodulator foer kompatibelt hoegdefinitionstelevsionssystem

Country Status (25)

Country Link
US (1) US5287180A (fi)
EP (2) EP0771123B1 (fi)
JP (1) JP3384802B2 (fi)
KR (1) KR100255719B1 (fi)
CN (1) CN1037803C (fi)
AT (1) ATE158916T1 (fi)
AU (1) AU662126B2 (fi)
BR (1) BR9107276A (fi)
CA (1) CA2101644A1 (fi)
CZ (2) CZ281295B6 (fi)
DE (2) DE69127828T2 (fi)
DK (2) DK0570464T3 (fi)
EG (1) EG19708A (fi)
ES (2) ES2106856T3 (fi)
FI (1) FI933457A0 (fi)
HU (1) HUT65171A (fi)
MX (1) MX9200475A (fi)
MY (1) MY109495A (fi)
PL (1) PL167627B1 (fi)
PT (1) PT100085B (fi)
RU (1) RU2127493C1 (fi)
SG (1) SG90697A1 (fi)
SK (1) SK279904B6 (fi)
TR (1) TR28300A (fi)
WO (1) WO1992014343A1 (fi)

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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
US6618096B1 (en) * 1997-09-29 2003-09-09 Scientific-Atlanta, Inc. System and method for adaptively balancing quadrature modulators for vestigial-sideband generation
US20030140351A1 (en) * 1998-04-17 2003-07-24 Hoarty W. Leo Cable television system compatible bandwidth upgrade using embedded digital channels
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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
PT100085B (pt) 1999-04-30
RU2127493C1 (ru) 1999-03-10
AU1271192A (en) 1992-09-07
ATE158916T1 (de) 1997-10-15
CZ152593A3 (en) 1994-12-15
CZ282390B6 (cs) 1997-07-16
ES2142010T3 (es) 2000-04-01
BR9107276A (pt) 1994-04-05
CN1037803C (zh) 1998-03-18
EP0570464A1 (en) 1993-11-24
MX9200475A (es) 1992-08-01
EP0771123A3 (en) 1997-07-23
CN1063985A (zh) 1992-08-26
DE69127828D1 (de) 1997-11-06
SG90697A1 (en) 2002-08-20
US5287180A (en) 1994-02-15
EP0570464B1 (en) 1997-10-01
KR100255719B1 (ko) 2000-05-01
PL167627B1 (pl) 1995-10-31
WO1992014343A1 (en) 1992-08-20
SK83193A3 (en) 1994-07-06
CA2101644A1 (en) 1992-08-05
TR28300A (tr) 1996-04-08
AU662126B2 (en) 1995-08-24
ES2106856T3 (es) 1997-11-16
CZ234494A3 (en) 1995-01-18
DE69131995T2 (de) 2000-08-17
EP0771123B1 (en) 2000-02-16
PT100085A (pt) 1994-04-29
HUT65171A (en) 1994-04-28
HU9302245D0 (en) 1993-10-28
JP3384802B2 (ja) 2003-03-10
DE69127828T2 (de) 1998-03-05
MY109495A (en) 1997-02-28
DK0570464T3 (da) 1997-10-27
EP0771123A2 (en) 1997-05-02
DK0771123T3 (da) 2000-06-05
KR930703793A (ko) 1993-11-30
SK279904B6 (sk) 1999-05-07
DE69131995D1 (de) 2000-03-23
JPH06505372A (ja) 1994-06-16
CZ281295B6 (cs) 1996-08-14
EG19708A (en) 1996-02-29
FI933457A0 (fi) 1993-08-03

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