Tailored error protection

H - Electricity – 04 – L

Patent

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Details

H04L 1/00 (2006.01) H03M 13/29 (2006.01) H03M 13/35 (2006.01)

Patent

CA 2124707

A method of tailored error protection coding is disclosed. An illustrative coding method according to the present invention concerns encoding a first signal and a second signal to provide error protection for the signals, wherein the first signal requires greater error protection than the second signal. According to the method, the first signal is encoded with a first error protection code. The encoded first signal is then combined with the second signal. The combination of the encoded first signal and the second signal is further encoded with a second error protection code to generate a combined error protected signal, wherein the firstsignal is coded with both the first and second error protection codes. A second embodiment concerns the use of separate coders which apply different error protection codes to two signals. The two encoded signals are then combined into a single signal.

L'invention est une méthode personnalisée de codage de protection contre les erreurs. Dans une méthode de codage illustrant la présente invention, un premier et un second signal sont codés pour les protéger contre les erreurs, le premier nécessitant une plus grande protection que le second. Dans cette méthode, le premier signal est codé avec un premier code de protection contre les erreurs. Le premier signal codé est ensuite combiné avec le second signal. La combinaison du premier signal codé et du second signal est elle-même codée avec un second code de protection contre les erreurs pour produire un signal combiné protégé contre les erreurs dans lequel le premier signal est codé avec le premier et le second code de protection contre les erreurs. Une seconde concrétisation de l'invention utilise des codeurs distincts qui appliquent des code de protection différents aux deux signaux. Les deux signaux codés sont ensuite combinés pour former un seul signal.

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