Title: Interference unit suitable for network exchanger
Application Number: 200520045255 Application Date: 2005.09.23
Publication Number: 000000000 Publication Date:
Approval Pub. Date: 2007.01.03 Granted Pub. Date: 2007.01.03
International Classifi-cation: H04K3/00;H04L12/04
Applicant(s) Name: Shanghai Shangke United Network Science Address:
Inventor(s) Name: Zhao Min;Wang Kai
Attorney & Agent: lu ban
Abstract:
    An interference unit installed in network switch comprises noise generator, isolation coupler, analog signal synthesizer, and signal adder. The input signal from different network line output terminals of each network line is obtained by the isolation coupler; then connected to the analog signal synthesizer; the outputs from the noise generator and analog signal synthesizer are connected to the signal adder, the random broadband frequency sweeping interference signal generated after signal adding is inputted to a pair of idle line of the network line to make it capable of being parallelly transmitter to another terminal following with the signals of another three pairs of network lines. If a person steals information from the internet line or other conducting line paralleled with network main line, actually what he/she steals is only mixed signals that are completely annihilated by interference signals, so as to achieve the aim of protecting the transmission of confidential information.
Time: 17
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