Data processing apparatus

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United States of America Patent

PATENT NO 6178459
SERIAL NO

08728853

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Abstract

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A data processing apparatus having a function of carrying out data process so that data flows between any nodes within a data network composed of a plurality of nodes via a communication channel for transmitting data unidirectionally includes a communication route matrix forming unit for forming a matrix constituted by a plurality of elements, each of which corresponds to the number of direct communication routes, directly linking each pair of nodes and including the above communication channels, so as to associate data-transmitting nodes with data-receiving nodes; a unit for calculating the number of patterns of communication routes that performs a given computation on the basis of the matrix formed by the communication route matrix forming unit, and thus calculates the number of patterns of all communication routes existing between a certain node and any one of the other nodes; and a unit for detecting a route between specified nodes that detects a specified pair of nodes, in which the number of patterns of communication routes calculated by the unit for calculating the number of patterns of communication routes is equal to or larger than a predetermined value, as patterns of communication routes causing a deadlock.

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Patent Owner(s)

Patent OwnerAddress
FUJITSU LIMITED1-1 KAMIKODANAKA 4-CHOME NAKAHARA- KU KAWASAKI-SHI KANAGAWA 211-8588 211-8588

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sugiyama, Etsuo Shizuoka, JP 3 49

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