Digital broadcasting system and method of processing data

H - Electricity – 04 – N

Patent

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H04N 7/64 (2006.01)

Patent

CA 2682343

A digital broadcasting system and a data processing method are disclosed. Herein, additional encoding is performed on mobile service data, which are then transmitted, thereby providing robustness in the processed mobile service data, so that the mobile service data can respond more strongly against fast and frequent channel changes. The data processing method of a digital broadcast transmitting system includes the steps of forming a RS frame by grouping a plurality of mobile service data bytes that is being inputted, and performing error correction encoding in RS frame units, forming a super frame by grouping a plurality of the error correction encoded RS frame, performing row permutation in super frame units, and dividing the super frame back to RS frames, and dividing the RS frame into a plurality of data groups.

L'invention concerne un système de diffusion numérique et un procédé de traitement de données associé. Dans l'invention, un codage supplémentaire s'effectue sur des données de services mobiles avant leur transmission, ce qui confère de la robustesse aux données de services mobiles traitées, de sorte que les données de services mobiles peuvent réagir plus fortement par rapport aux changements rapides et fréquents de voie de communication. Le procédé de traitement de données d'un système de transmission de diffusion numérique de l'invention comprend les étapes consistant à : former une trame RS par regroupement d'une pluralité d'octets de données de services mobiles en cours de saisie, et effectuer un codage de correction d'erreurs dans des unités de trame RS; former une supertrame par regroupement de la pluralité de trames RS codées ayant subi un codage de correction d'erreurs; effectuer une permutation de rangées dans les unités de supertrame; et diviser chaque supertrame pour reformer des trames RS; puis diviser chaque trame RS en une pluralité de groupes de données.

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