Automatic retrieval of changed files by a network software agent
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 22, 2000
Grant Date -
N/A
app pub date -
Jun 7, 1996
filing date -
Oct 26, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intelligent network agent intercepts transactions between clients and servers to perform Distributed Information Logistics Services (DILS) functions such as automatically retrieving updated files from remote servers and delivering them to local client programs. For example, HTTP clients and HTTPD servers are connectionless and stateless, thus there is no way for a server to update a browser automatically when an HTML document is changed. The invention provides a method to update any number of clients from any number of servers without making any changes to currently existing HTTP clients or HTTPD servers. Furthermore, the invention can provide various other DILS services for clients to reduce latency and communication costs for members of a group with interests in similar objects. For example, the intelligent network agent maintains a cache of objects of interest to the group of clients, a log of changes to the objects, a list of the clients interested in the objects, a list of significant change detection methods for the objects, a list of search specifications for the objects, lists of client notification methods, and lists of general interest specifications for the clients.
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