System for forming, partitioning and processing electronic...

Details System for forming, partitioning and processing electronic... System for forming, partitioning and processing electronic...

H - Electricity

04

N

H04N 7/16 (2006.01) H04N 5/445 (2006.01) H04N 7/24 (2006.01)

Patent

CA 2321468

A program guide information data structure and processing system facilitates decoding. A decoder acquires ancillary information conveyed in hierarchically ordered data tables comprising packetized program guide data. The ancillary information includes hierarchically associated version identifiers enabling the decoder to identify change in data table content by examination of the version identifiers in hierarchical order. The decoder acquires cell numbers (e.g. identifying cell type, area, broadcast time and complexity level) assigned to individual partitions of the program guide information in order to adapt to dynamically re-partitioned program guide data.

L'invention concerne une structure de données d'informations de guides de programmes et un système de traitement facilitant le décodage. Un décodeur acquiert des informations auxiliaires transportées dans des tables de données à ordonnancement hiérarchique comprenant des données de guides de programmes par paquets. Les informations auxiliaires comprennent des identificateurs de versions hiérarchiquement associés permettant au décodeur d'identifier des modifications dans le contenu de la table de données en examinant les identificateurs de versions à ordonnancement hiérarchique. Le décodeur acquiert des numéros de cellules (par exemple identifiant le type de cellule, la zone, le temps de diffusion et le niveau de complexité) attribués à des segments individuels des informations de guides de programmes afin de s'adapter aux données de guides de programmes à nouvelle segmentation dynamique.

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