Title:
【発明の名称】セル到着順序検出装置
Document Type and Number:
Japanese Patent JP2926670
Kind Code:
B2
Abstract:
PURPOSE:To eliminate the influence of bit errors generated inside an ATM communication system by using pseudo random (PN) signals for test signals in a cell arrival order detection device for testing the transfer state of the cells of the ATM communication system. CONSTITUTION:A PN signal generator 1 generates the PN signal (a) and transmits it to the ATM communication system 2. A referring PN signal generation circuit 3 receives the PN signal (b) divided into the cells inside the ATM communication system and successively transferred and generates referring PN signals (e) for the respective cells. A circuit 4 for generating signals for cell order detection generates the signals p1-p4 for the detection for detecting the order of the cell arriving next based on the referring PN signal (e). A cell order detection circuit 5 detects the arrival order of the cells from the coincidence state of the signals p1-p4 for the detection and the referring PN signal (e) generated based on the cell arriving next.
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Inventors:
OGAWA TAKESHI
WATANABE NORYUKI
ISHAMA NOBUKI
KUSAMIZU MASAKI
WATANABE NORYUKI
ISHAMA NOBUKI
KUSAMIZU MASAKI
Application Number:
JP22477492A
Publication Date:
July 28, 1999
Filing Date:
July 31, 1992
Export Citation:
Assignee:
ANRITSU KK
International Classes:
H04L12/26; H04L12/28; (IPC1-7): H04L12/28; H04L12/26
Domestic Patent References:
| JP3250834A | ||||
| JP3139043A | ||||
| JP4137843A | ||||
| JP5183573A |