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:
Feb. 29, 2000
Filed:
Aug. 04, 1997
Kenichi Okabe, Kawasaki, JP;
Junichi Kawaguchi, Fukuoka, JP;
Hiroko Yoshino, Yokohama, JP;
Masakazu Sato, Yokohama, JP;
Hiroshi Ishiwata, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
An ATM switching system concentrates cell streams, which are output by respective ones of a plurality of line interfaces, by a concentrator, enters a resulting cell stream into an ATM switch unit, deconcentrates cells, which have been switched by the ATM switch unit, by a deconcentrator on a per line interface basis and sends the cells to lines. Each line interface converts a VPI/VCI included in the header of a cell that has entered from a line to an internal cell address having a number of bits smaller than the number of bits of the VPI/VCI. Each unit in the ATM switching system performs management of various data and controls cell switching based upon a converted cell address without relying upon the VPI/VCI. The line interface restores an internal cell address, which is included in the header of a cell that enters from the side of the ATM switch, to the VPI/VCI and sends the cell to a line.