Electrical computers and digital processing systems: multicomput – Computer network managing – Network resource allocating
Reexamination Certificate
1997-02-14
2001-01-30
Maung, Zarni (Department: 2758)
Electrical computers and digital processing systems: multicomput
Computer network managing
Network resource allocating
C709S224000, C709S229000
Reexamination Certificate
active
06182138
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a data distribution system, and more particularly to a data distribution system having distribution servers.
A data distribution system distributes data (i.e., video data) to clients (i.e., set top boxes). The data distribution system has distributing servers which distribute data (“content”) to the clients by a stream.
In the data distribution system, work load of the distributing servers is not always balanced. If some specific distributing severs are accessed more than other distributing servers, the entire performance of the system is degraded.
On the other hand, if all of the distributing servers store same contents in duplicate, too much capacity is required in the distributing servers.
SUMMARY OF THE INVENTION
In view of the foregoing problem of the conventional system, an object of the present invention is to change the distributing capability of the system dynamically.
In a data distribution system according to a first aspect of the present invention, a plurality of distributing servers serve data. The distributing servers transmit the data between the distributing servers according to a load balance of the distributing servers.
With the unique and unobvious structure of the present invention, the distributing capability of the system is changed dynamically to follow the requests from the clients.
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Foley & Lardner
Maung Zarni
NEC Corporation
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