Information data multiplexing transmission system,...

Details Information data multiplexing transmission system,... Information data multiplexing transmission system,...

H - Electricity

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H04L 1/00 (2006.01) H03M 13/00 (2006.01) H03M 13/09 (2006.01) H03M 13/15 (2006.01) H03M 13/23 (2006.01) H03M 13/27 (2006.01) H03M 13/29 (2006.01) H03M 13/35 (2006.01) H03M 13/39 (2006.01) H03M 13/45 (2006.01) H04J 3/02 (2006.01) H04L 1/04 (2006.01) H04L 1/08 (2006.01) H04N 7/66 (2006.01) H04L 1/18 (2006.01) H04N 7/52 (2006.01)

Patent

CA 2262894

On the transmission side, a multiplexing section estimates the quantities of information from signal processing sections, determines multiplexing codes based on the quantities of information, takes the parity of a determined first multiplexing code, and uses the parity as a second multiplexing code. The multiplexing section then generates two headers (H 1 ) and (H2) by adding a CRC to each multiplexing code, fetches information data of each medium in accordance with the multiplexing codes, incorporates the data in a packet together with the two headers (H1) and (H2) and outputs the packet. On the reception side, error correction decoding is performed by using the header (H2) when the error correction of the header (H1) is impossible, or by using both headers (H1) and (H2) when the error correction of the header (H2) is also impossible.

Coté émission, une section de multiplexage évalue les quantités d'information en provenance de sections de traitement de signal, détermine les codes de multiplexage d'après les quantités d'informations, établit la parité d'un premier code de multiplexage déterminé et utilise cette parité comme second code de multiplexage. La section de multiplexage génère ensuite deux hauts de page (H1 et H2) par adjonction d'un CRC à chaque code de multiplexage, extrait des données d'information dans chaque support en conformité avec les codes de multiplexage, incorpore les données dans un paquet avec les deux hauts de page (H1 et H2) et sort le paquet. Coté réception, un décodage pour correction d'erreur est exécuté à l'aide du haut de page H2, lorsque la correction d'erreur du haut de page H1 est impossible, ou bien à l'aide des deux hauts de page (H1 et H2) lorsque la correction d'erreur du haut de page H2 est également impossible.

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