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. 30, 2001
Filed:
Jul. 09, 1997
Yoichi Hariguchi, Palo Alto, CA (US);
Other;
Abstract
A routing table comprises routing table entries [,], a word line driver [,], prioritizer [,], and memory [,]. Each routing table entry [,] comprises content addressable memory (CAM) cells [,] and an entry masking circuit. The routing table looks up in parallel an entry matching an input network address, and outputs the search result in deterministic time. Only the bits specified by the masking circuit in each entry are compared when searching. If multiple entries match the input, the prioritizer [,] uses mask information from the masking circuits of the matching entries to select the best entry, e.g. the entry having the most matching bits.