H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 1/00 (2006.01)
Patent
CA 2584686
A method and devices using that method are provided for reconstructing an encoded signal conveyed along a communication path in a packet switched network. The method comprises the steps of: providing a communication signal that has been encoded into a plurality of frames; determining which of the plurality of frames is an essential frame, which loss would cause a relatively substantial deterioration in the quality of at least one proceeding frame upon decoding that at least one proceeding frame; packaging the plurality of frames into a plurality of packets, and identifying which of the packets comprise at least one essential frame; adding protecting information to at least one packet which proceeds a packet identified as a packet carrying at least one essential frame.
L'invention concerne un procédé et des dispositifs utilisant ce procédé en vue de reconstruire un signal codé transporté le long d'un trajet de communication dans un réseau à commutation par paquets. Ce procédé comprend les étapes consistant: à fournir un signal de communication qui a été codé dans plusieurs trames; à déterminer laquelle des trames est la trame principale, quelle perte entraînerait une détérioration sensible de la qualité d'au moins une trame suivante lors du décodage de cette trame; à emballer les trames dans plusieurs paquets; et à identifier lequel des paquets comprend au moins une trame principale; à ajouter des informations de protection à au moins un paquet qui donne suite à un paquet identifié en tant que paquet transportant au moins une trame principale.
Agassy Meir
Ilan Amir
Matas David
Shapiro Joseph
Dialogic Networks (israel) Ltd.
Gowling Lafleur Henderson Llp
Veraz Networks Ltd.
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