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:
Nov. 24, 2009
Filed:
Jun. 30, 2005
Santosh Balakrishnan, Gilbert, AZ (US);
Venkatraman Ramakrishna, Los Angeles, CA (US);
Santosh Balakrishnan, Gilbert, AZ (US);
Venkatraman Ramakrishna, Los Angeles, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Methods and apparatus for performing content inspection using multi-pattern packet content inspection mechanisms employing tagged values. Pattern data structures are employed to facilitate multi-pattern searches via corresponding string-search algorithm machines. The pattern data structures include tagged values defining search offsets and depths for corresponding search patterns. Incoming packets are classified to flows, and stored in corresponding flow queues. Flow table entries are used to identify the pattern data structure for a given flow. During content inspection, the algorithm machine employs the tagged values to effectively skip portions of a data stream up to the offset for each search pattern and to cease searching for a pattern upon reaching the depth for the pattern.