The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 1995
Filed:
Jan. 31, 1994
Applicant:
Inventor:
Hiroomi Tateishi, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J / ; H04L / ; H04L / ;
U.S. Cl.
CPC ...
370 15 ; 370 17 ; 371 204 ; 371 205 ;
Abstract
A packet section (21) generates each packet data by adding a packet header to each of a plurality of random patterns. A highway demultiplexing section (22) demultiplexes the generated packet data to a plurality of input highways. A packet multiplexing section (32) multiplexes the packet data to one highway, the packet data being supplied from the plurality of output highways. A depacket section (31) fetches each random pattern out of the packet data multiplexed by the packet multiplexing section. An error detector (7) detects an error in the random pattern fetched by the depacket section. A test for an under-test device is thus conducted.