{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10503716","patent":{"patent_number":"US-10503716","title":"Systems and methods for generating bit matrices for hash functions using fast filtering","assignee":null,"inventors":[],"filing_date":"2013-10-31T00:00:00.000Z","publication_date":"2019-12-10T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":20,"abstract":"A lookup circuit evaluates hash functions that map keys to addresses in lookup tables. The circuit includes multiple hash function sub-circuits, each of which applies a respective hash function to an input key, producing a hash value. Candidate pairs of hash functions to be implemented by the hash function sub-circuits may be generated and tested for suitability in hashing a particular collection of keys. The suitability testing may include computing hash value bit vectors by applying each hash function in a candidate pair to a given key, and determining (using a modified union-find type operation that organizes objects in each set as a directed graph whose root points to itself) whether the resulting hash value bit vectors belong to the same set. The union-find type operation may include a limited distance-from-root test, path compression, or exception handling for special cases, but not a rank test."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Systems and methods for generating bit matrices for hash functions using fast filtering","description":"A lookup circuit evaluates hash functions that map keys to addresses in lookup tables. The circuit includes multiple hash function sub-circuits, each of which applies a respective hash function to an ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10503716","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-10503716","citation_suggestion":"Patentable. \"Systems and methods for generating bit matrices for hash functions using fast filtering\" (US-10503716). https://patentable.app/patents/US-10503716","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10503716","json":"https://patentable.app/api/llm-context/US-10503716","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:25:35.596Z"}