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:
Aug. 16, 1994
Filed:
Mar. 11, 1992
Ikuo Taniguchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Nippon Telegraph and Telephone Corp., Tokyo, JP;
Abstract
A switching apparatus for a switched network of the asynchronous transfer mode includes a path inspection control device connected to an input interface board, a switching network, and an output interface board. Cells for path inspection are supplied parallel to the input interface board; routing information is supplied to the switching network; the transmissions of the cells for path inspection are simultaneously switched accordingly; the cells for path inspection are delivered in parallel formation from the output interface board; the cells for path inspection delivered from the output interface board are compared with predetermined comparison data, and the routing information and the cells for path inspection or the comparison data are changed in synchronization with predetermined time signals.