Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

1. WO2007145410 - SYSTÈME DE TÉLÉDIFFUSION NUMÉRIQUE ET PROCÉDÉ DE TRAITEMENT DE DONNÉES

Numéro de publication WO/2007/145410
Date de publication 21.12.2007
N° de la demande internationale PCT/KR2007/000127
Date du dépôt international 08.01.2007
CIB
H04N 7/08 2006.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
7Systèmes de télévision
08Systèmes pour la transmission simultanée ou séquentielle de plus d'un signal de télévision, p.ex. des signaux d'information additionnelle, les signaux occupant totalement ou partiellement la même bande de fréquence
CPC
H04N 21/235
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
235Processing of additional data, e.g. scrambling of additional data or processing content descriptors
H04N 21/23614
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
236Assembling 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
23614Multiplexing of additional data and video streams
H04N 21/2383
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2383Channel coding ; or modulation; of digital bit-stream, e.g. QPSK modulation
H04N 21/434
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
H04N 21/4345
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
4345Extraction or processing of SI, e.g. extracting service information from an MPEG stream
H04N 21/4348
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
4348Demultiplexing of additional data and video streams
Déposants
  • LG ELECTRONICS INC. [KR/KR]; 20, YOIDO-DONG Youngdungpo-gu Seoul 150-010, KR (AllExceptUS)
  • SONG, Won Gyu [KR/KR]; KR (UsOnly)
  • CHOI, In Hwan [KR/KR]; KR (UsOnly)
  • KWAK, Kook Yeon [KR/KR]; KR (UsOnly)
  • KIM, Byoung Gill [KR/KR]; KR (UsOnly)
  • KIM, Jin Woo [KR/KR]; KR (UsOnly)
  • LEE, Hyoung Gon [KR/KR]; KR (UsOnly)
  • KIM, Jong Moon [KR/KR]; KR (UsOnly)
Inventeurs
  • SONG, Won Gyu; KR
  • CHOI, In Hwan; KR
  • KWAK, Kook Yeon; KR
  • KIM, Byoung Gill; KR
  • KIM, Jin Woo; KR
  • LEE, Hyoung Gon; KR
  • KIM, Jong Moon; KR
Mandataires
  • KIM, Yong In ; 15th Floor, Yeosam Bldg., 648-23 Yeoksam-dong, Kangnam-gu Seoul 135-080, KR
Données relatives à la priorité
10-2006-005388415.06.2006KR
10-2006-008973615.09.2006KR
Langue de publication anglais (EN)
Langue de dépôt coréen (KO)
États désignés
Titre
(EN) DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA
(FR) SYSTÈME DE TÉLÉDIFFUSION NUMÉRIQUE ET PROCÉDÉ DE TRAITEMENT DE DONNÉES
Abrégé
(EN)
A digital broadcast system is disclosed. Most particularly, by inserting and transmitting predefined known data in a particular position within the data are having enhanced data transmitted therein, and by having a receiving system use the known data for demodulating and equalization processes, the receiving performance may be enhanced in an environment undergoing frequent channel changes and being vulnerable to noise.
(FR)
L'invention concerne un système de télédiffusion numérique. Plus particulièrement, il est possible d'améliorer les performances de réception dans un environnement qui subit de fréquentes modifications des canaux et qui est vulnérable au bruit, en insérant et en transmettant des données connues prédéfinies dans une position particulière au sein des données, en y incluant des données améliorées, et en faisant en sorte que le système de réception utilise les données connues pour les processus de démodulation et d'égalisation.
Également publié en tant que
Dernières données bibliographiques dont dispose le Bureau international