ATE157831T1 - Verfahren und anordnung zur modulation und demodulation von ubertragungssubkanälen für kompatibles fernsehsystem - Google Patents

Verfahren und anordnung zur modulation und demodulation von ubertragungssubkanälen für kompatibles fernsehsystem

Info

Publication number
ATE157831T1
ATE157831T1 AT92913386T AT92913386T ATE157831T1 AT E157831 T1 ATE157831 T1 AT E157831T1 AT 92913386 T AT92913386 T AT 92913386T AT 92913386 T AT92913386 T AT 92913386T AT E157831 T1 ATE157831 T1 AT E157831T1
Authority
AT
Austria
Prior art keywords
demodulation
modulation
arrangement
television system
compatible television
Prior art date
Application number
AT92913386T
Other languages
English (en)
Inventor
Pannerer Yves-Marie Le
Original Assignee
Thomson Multimedia Sa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9414417&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE157831(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson Multimedia Sa filed Critical Thomson Multimedia Sa
Application granted granted Critical
Publication of ATE157831T1 publication Critical patent/ATE157831T1/de

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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • 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
    • H04L27/3488—Multiresolution systems
    • 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
    • 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
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23605—Creation or processing of packetized elementary streams [PES]
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/39—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Television Systems (AREA)
  • Amplitude Modulation (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
AT92913386T 1991-06-27 1992-06-19 Verfahren und anordnung zur modulation und demodulation von ubertragungssubkanälen für kompatibles fernsehsystem ATE157831T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9108009A FR2678454B1 (fr) 1991-06-27 1991-06-27 Procede et dispositif de modulation et de demodulation de sous-canaux de transmission pour systeme de television compatible.

Publications (1)

Publication Number Publication Date
ATE157831T1 true ATE157831T1 (de) 1997-09-15

Family

ID=9414417

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92913386T ATE157831T1 (de) 1991-06-27 1992-06-19 Verfahren und anordnung zur modulation und demodulation von ubertragungssubkanälen für kompatibles fernsehsystem

Country Status (11)

Country Link
EP (1) EP0550712B1 (de)
JP (1) JPH06500908A (de)
KR (1) KR930701895A (de)
AT (1) ATE157831T1 (de)
AU (1) AU2173992A (de)
CA (1) CA2090722A1 (de)
DE (1) DE69222018T2 (de)
FI (1) FI930888A7 (de)
FR (1) FR2678454B1 (de)
SG (1) SG67348A1 (de)
WO (1) WO1993000770A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517234A (en) * 1993-10-26 1996-05-14 Gerber Systems Corporation Automatic optical inspection system having a weighted transition database

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189366B (en) * 1986-04-17 1989-12-28 British Broadcasting Corp Method and apparatus for conveying information signals
US4881241A (en) * 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles
FR2638305B1 (fr) * 1988-10-21 1994-08-05 Thomson Csf Emetteur et procede d'emission
FR2643531B1 (fr) * 1989-02-21 1996-04-26 Thomson Csf Procede et dispositif de compression de l'information destine au decodage compatible d'une famille de signaux de television de resolutions croissantes

Also Published As

Publication number Publication date
FI930888A0 (fi) 1993-02-26
KR930701895A (ko) 1993-06-12
FI930888L (fi) 1993-02-26
FR2678454B1 (fr) 1994-11-04
EP0550712B1 (de) 1997-09-03
EP0550712A1 (de) 1993-07-14
JPH06500908A (ja) 1994-01-27
DE69222018D1 (de) 1997-10-09
WO1993000770A1 (fr) 1993-01-07
FR2678454A1 (fr) 1992-12-31
SG67348A1 (en) 1999-09-21
DE69222018T2 (de) 1998-01-08
FI930888A7 (fi) 1993-02-26
AU2173992A (en) 1993-01-25
CA2090722A1 (fr) 1992-12-28

Similar Documents

Publication Publication Date Title
PT1049284E (pt) Transmissao com multirresolucao com sinais de portadoras multiplas
KR940027562A (ko) 디지털 신호 송신용 디지털 송신 시스템과 디지털 송신 시스템용 송신기와 수신기 및, 디지털 송신 방법
EP1359761A3 (de) Signalübertragungssystem
KR890009185A (ko) 고 선명도 텔레비젼
KR850005188A (ko) 무선통신 시스템
ATE157831T1 (de) Verfahren und anordnung zur modulation und demodulation von ubertragungssubkanälen für kompatibles fernsehsystem
IL91592A0 (en) System and method of transmitting a complex waveform over a communication channel utilizing lincompex techniques
JPS56157150A (en) Composite digital communication system
KR900019503A (ko) 텔레비전신호 전송방식

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties