| 摘要 |
PROBLEM TO BE SOLVED: To provide a proxy device capable of reducing the load of a network. SOLUTION: When a server side proxy 30 transfers new contents data to a client side proxy 40, the both proxies associate the data with its fingerprint and register the data associated with the fingerprint. However, if the data can be compressed on the basis of another registered data, the compressed data are registered instead of the data. When the proxy 30 transfers to the proxy 40 data having the same fingerprint as the registered fingerprint, the fingerprint is transferred instead of the data. The proxy 40 extracts the data registered in association with the received fingerprint, and decompresses the compressed data to restore the original data when the data are the compressed data. COPYRIGHT: (C)2004,JPO
|
