Patent ID: 7047407
Filing Date: 2006-05-16
Classification: H04L

Abstract:
1. A network system connected to an in-house network and capable of controlling transmission, comprising a transmission/receiving terminal having means for transmitting/receiving data and repeater means for relaying the data transmitted/received between said transmission/receiving terminal and said in-house network, wherein: said data includes information proper and additional information associated with said information proper; said repeater means includes means for controlling the data transmission from said transmission/receiving terminal using said additional information, and means for removing said additional information from data transmissible outside of said in-house network; and said repeater means includes: a transmission permit list of transmittees external to said in-house network to which said transmission/receiving terminal is permitted to transmit data; means for encrypting the data to be transmitted by said transmission/receiving terminal; means for receiving the data to be transmitted by said transmission/receiving terminal; means for determining whether said data is to be transmitted, with reference to said transmission permit list; means for encrypting said data of which the transmission is permitted; and means for transmitting said encrypted data outside of said in-house network.