Broadcasting receiver and broadcast signal processing method

Details Broadcasting receiver and broadcast signal processing method Broadcasting receiver and broadcast signal processing method

H - Electricity

04

H

H04H 60/11 (2009.01) H04W 4/06 (2009.01)

Patent

CA 2691983

A broadcasting receiver and broadcast signal processing method are disclosed. A receiver receives a broadcast signal including mobile service data and main service data, in which the mobile service data is able to construct a data group, the data group is divided into several areas, N number of known data streams are inserted into some areas from among the several areas, and a transmission parameter is inserted between a first known data stream and a second known data stream from among the N number of known data streams. A transmission parameter detector detectes the transmission parameter. A block decoder performs block-unit symbol-decoding of the mobile service data contained in the received broadcast signal on the basis of the detected transmission parameter. And a decoder extracts audio data and additional information from the symbol-decoded mobile service data, dequantizing the audio data, converts the dequantized audio data into a time-domain signal for each block according to a length of a block indicated by an identifier contained in the additional information, and restores an audio signal. A broadcasting receiver and broadcast signal processing method are disclosed. A receiver receives a broadcast signal including mobile service data and main service data, in which the mobile service data is able to construct a data group, the data group is divided into several areas, N number of known data streams are inserted into some areas from among the several areas, and a transmission parameter is inserted between a first known data stream and a second known data stream from among the N number of known data streams. A transmission parameter detector detectes the transmission parameter. A block decoder performs block-unit symbol-decoding of the mobile service data contained in the received broadcast signal on the basis of the detected transmission parameter. And a decoder extracts audio data and additional information from the symbol-decoded mobile service data, dequantizing the audio data, converts the dequantized audio data into a time-domain signal for each block according to a length of a block indicated by an identifier contained in the additional information, and restores an audio signal.

L'invention concerne un récepteur de radiodiffusion et un procédé de traitement d'un signal de radiodiffusion. Selon l'invention, un récepteur reçoit un signal de radiodiffusion comprenant des données de service mobile (pouvant être reçues par un récepteur mobile) et des données de service principal (pouvant être reçues par un récepteur fixe), les données de service mobile permettant de construire un groupe de données, ce groupe de données étant divisé en plusieurs zones, un certain nombre de flux de données connues N étant inséré dans certaines de ces zones, et un paramètre de transmission étant inséré entre un premier flux de données connues et un second flux de données connues appartenant audit nombre de flux de données connues N. Un détecteur de paramètres de transmission détecte ce paramètre de transmission. Un décodeur de blocs effectue un décodage de blocs/symboles pour les données de services mobiles contenues dans le signal de radiodiffusion reçu en fonction du paramètre de transmission détecté. Et un décodeur extrait des données audio et des informations supplémentaires à partir des données de service mobile ayant subi un décodage de symboles; déquantifie les données audio; convertit ces données audio déquantifiées en un signal de domaine temporel pour chaque bloc selon les longueurs de bloc indiquées par un élément d'identification contenu dans les informations supplémentaires, et restaure un signal audio.

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