{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9811777","patent":{"patent_number":"US-9811777","title":"Rule matching method and apparatus for deep packet inspection","assignee":null,"inventors":[],"filing_date":"2014-11-24T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["G06N","H04L","H04L","G06F"],"num_claims":20,"abstract":"The present invention discloses a rule matching method including: receiving a packet; detecting feature information in content of the packet, and determining whether the detected feature information in the packet conforms to a classification characteristic of one rule group among a plurality of preset rule groups; if yes, determining a state machine corresponding to the one rule group as a first state machine; and determining whether the first state machine is stored in an on-chip memory, and if yes, using the first state machine to match the packet to obtain a matching result; and if no, when an off-chip memory stores the first state machine, loading the first state machine from the off-chip memory into the on-chip memory, and using the first state machine to match the packet to obtain a matching result. Embodiments of the present invention enable a product to achieve better performance."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Rule matching method and apparatus for deep packet inspection","description":"The present invention discloses a rule matching method including: receiving a packet; detecting feature information in content of the packet, and determining whether the detected feature information i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9811777","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9811777","citation_suggestion":"Patentable. \"Rule matching method and apparatus for deep packet inspection\" (US-9811777). https://patentable.app/patents/US-9811777","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9811777","json":"https://patentable.app/api/llm-context/US-9811777","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:44:01.180Z"}