Data e.g. audio/video data, filtering method for securing e.g. corporate network, involves determining host`s zone by referring database, and performing filtering action, selected from set of actions determined based on criterions, on data

摘要

#CMT# #/CMT# The method involves determining an Internet protocol address of a host e.g. web site hoster, by detecting the origin of data stream carrying data to be filtered. Original geographical zone of the host is determined by referring a database coupling the address and the zone. A filtering action is performed on the data, where the filtering action is selected from a set of actions determined based on a set of filtering criterions comprising the original geographical zone of the host. #CMT# : #/CMT# Independent claims are also included for the following: (1) a device for filtering data in a digital data network (2) a man-machine interface for implementing a data filtering method. #CMT#USE : #/CMT# Used for filtering data e.g. data with pornographic character and audio/video data, in a digital data network (claimed) such as telephone network or Internet, for securing a user and computer network e.g. corporate network, against an attack from the data network. #CMT#ADVANTAGE : #/CMT# The method ensures a rapid and effective filtering of the data in the digital data network. The utilization of the database permits to generalize the filtering at the determined zone in a simple manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flowchart of a filtering method.`(Drawing includes non-English language text)`.