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:
May. 27, 2003
Filed:
Mar. 11, 1999
Applicant:
Inventors:
Tutomu Murase, Tokyo, JP;
Naoyuki Ogura, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/300 ;
Abstract
A router having a high-speed and flexible longest match retrieval device is disclosed. A plurality of entries are divided into a plurality of primary retrieving circuits each retrieving a primary match mask and a primary match entry depending on a given address. The primary match masks and entries obtained by the primary retrieving circuits are used to determine the longest match routing information.