Robust signal transmissions in digital television broadcasting

Details Robust signal transmissions in digital television broadcasting Robust signal transmissions in digital television broadcasting

H - Electricity

04

L

H04L 1/00 (2006.01) H04L 25/03 (2006.01) H04L 27/02 (2006.01) H04L 27/34 (2006.01) H04N 7/66 (2006.01)

Patent

CA 2511903

A data field of transmitted digital television signals includes a first set of A/53-compliant data segments that convey payload information and further includes a second set of A/53-compliant data segments that contain parity bytes for transverse Reed-Solomon forward-error-correction coding of the data contained within the first set of A/53-compliant data segments. A digital television receiver uses the parity bytes in the second set of A/53-compliant data segments to implement transverse Reed-Solomon forward-error-correction decoding that corrects byte errors in the data contained in the first set of A/53-compliant data segments.

Selon l'invention, un champ de données de signaux de télévision numérique transmis comprend un premier ensemble de segments de données compatibles avec A/53 qui transmet des informations relatives à la charge utile et un second ensemble de segments de données compatibles avec A/53 qui contient des octets de parité pour un codage transversal Reed-Solomon de la correction des erreurs sans voie de retour des données contenues dans le premier ensemble de segments de données compatibles avec A/53. Un récepteur de télévision numérique utilise les octets de parité du second ensemble de segments de données compatibles avec A/53 afin de mettre en oeuvre un décodage transversal Reed-Solomon de la correction des erreurs sans voie de retour qui corrige les erreurs d'octets présentes dans les données contenues dans le premier ensemble de segments de données compatibles avec A/53.

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