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:
Mar. 23, 2004
Filed:
Oct. 19, 1999
Jinichi Yoshizawa, Kawasaki, JP;
Shigeatsu Samukawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A terminating apparatus for an ATM adaptation layer is made of hardware logic circuits to terminate received cells connection by connection and assemble an ATM adaptation layer message for each connection from data contained in the received cells. The apparatus is compact and operates at high speed. The structure of the apparatus is independent of the number of connections to terminate. The apparatus has a-header extractor ( - ) for extracting a virtual path indication/virtual channel indication (VPI/VCI) from a received cell, a CRC unit ( - ) shared by cells of different connections, a reception processor ( - ) for determining whether or not the received cell is the last cell of an ATM adaptation layer message according to a payload type indication (PTI) contained in a header of the received cell and processing the received cell, a work memory ( - ) for storing, for each connection, a CRC result and the number of received cells, and a reception buffer ( - ) for sequentially storing, for each connection, data contained in cells received for the connection.