H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04N 7/173 (2006.01)
Patent
CA 2196622
A network data distribution system which is operated, under circumstances affected by external or internal factors, without discontinuing a data distribution service while being adapted to the present situation is provided. In the server (1) side of the system, data requested from a client are divided into packets, and packet data is formed by adding a time index, and in the client (2) side, an amount of transmission or processing delay is calculated based on the time index included in the received packet data, and delay time information based on the calculated result is communicated. The server side selects the packet data to be next transmitted based on the communicated delay time information, and sends the selected packet data. That is, the client has the initiative of controlling the delay situation; thus, it is possible to perform adaptive operations according to delay situations occurring at each side of the server, the network, and the clients which are independently managed, and to realize the best data regeneration performed in the existing system capability.
L'invention est un système de distribution de données dans un réseau qui, dans des circonstances qui dépendent de facteurs externes ou internes, peut fonctionner sans interrompre la distribution des données en s'adaptant à la situation du moment. Du côté serveur (1) du système, les données demandées à un client sont divisées en paquets auxquels sont incorporés un index temporel et, du côté client (2), le retard de transmission ou de traitement est calculé d'après l'index temporel incorporé aux paquets de données reçus et le retard calculé est communiqué au serveur. Ce dernier choisit le paquet à transmettre ensuite d'après le retard communiqué et le transmet. Le client peut contrôler le retard et il est possible d'effectuer des opérations adaptatives selon les situations de retard qui se présentent de chaque côté du serveur, du réseau et des clients qui sont gérées indépendamment les unes des autres et d'obtenir la meilleure régénération possible des données avec le système.
Ito Tatsuaki
Jinzenji Hiroshi
Tajiri Tetsuo
Marks & Clerk
Nippon Telegraph & Telephone Corporation
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