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:
Dec. 05, 1995
Filed:
Aug. 09, 1993
Applicant:
Inventors:
Richard J Hausman, Soquel, CA (US);
Lazar Birenbaum, Saratoga, CA (US);
Assignee:
Grand Junction Networks, Inc., Union City, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
370 8513 ; 370 941 ; 370 92 ;
Abstract
An improved partial packet filter (10) for filtering data packets (210) in a computer network (12) wherein a candidate field (413) of the data packet (210) is hashed to a plurality of bit-wise subsets (636) each being an independent representation of the candidate field (413). Each of the bit-wise subsets (636) is compared to a reference hash table (644) which has been prepared in a preliminary operation series (514). The preliminary operation series (512) configures a plurality of target fields (714) to set selected memory locations (312) in the reference hash table (644).