发明名称 ELECTROMAGNETIC NOISE DIAGNOSTIC APPARATUS, ELECTROMAGNETIC NOISE DIAGNOSTIC SYSTEM AND ELECTROMAGNETIC NOISE DIAGNOSTIC METHOD
摘要 <p><P>PROBLEM TO BE SOLVED: To simply specify the amount of characteristic of an electromagnetic noise affecting a network. <P>SOLUTION: The electromagnetic noise diagnostic method includes steps of: transmitting a test frame line in accordance with a predetermined frame condition to a target network 100 by a transmission frame control part 10; calculating a frame loss rate by detecting the returned test frame line through the test target network 100 by a frame loss detection part 20; and comparing the frame loss rate and the characteristic data in the frame condition by an electromagnetic noise analysis part 30. The amount of characteristic of the electromagnetic noise is thereby specified in a short period of time. <P>COPYRIGHT: (C)2010,JPO&INPIT</p>
申请公布号 JP2010008205(A) 申请公布日期 2010.01.14
申请号 JP20080167441 申请日期 2008.06.26
申请人 NIPPON TELEGR & TELEPH CORP <NTT> 发明人 NAKAMURA NAOMICHI;KOBAYASHI RYUICHI;TAJIMA KIMIHIRO
分类号 G01R29/08;H04B3/46;H04L12/28;H04L29/14 主分类号 G01R29/08
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