Parallelized pattern matching using non-deterministic finite automata

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United States of America Patent

PATENT NO 9021582
APP PUB NO 20080271141A1
SERIAL NO

11739365

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Abstract

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This disclosure describes techniques of determining whether a symbol stream includes a pattern defined by a regular expression. As described herein, the regular expression may be represented using a non-deterministic finite automaton (NFA). A plurality of states in the NFA may be evaluated in parallel. These states may be associated with a plurality of symbol positions in a symbol stream. Evaluating a plurality of states and symbols in parallel may allow for faster determinations of whether the symbol stream includes the pattern defined by the regular expression.

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Patent Owner(s)

  • JUNIPER NETWORKS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goldman, Gary Los Altos, US 15 139
Panwar, Ramesh Pleasanton, US 70 2432
Thomas, Philip A San Jose, US 46 1162

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