{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9588889","patent":{"patent_number":"US-9588889","title":"Domain state","assignee":null,"inventors":[],"filing_date":"2011-12-29T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F"],"num_claims":35,"abstract":"Method and apparatus to efficiently maintain cache coherency by reading/writing a domain state field associated with a tag entry within a cache tag directory. A value may be assigned to a domain state field of a tag entry in a cache tag directory. The cache tag directory may belong to a hierarchy of cache tag directories. Each tag entry may be associated with a cache line from a cache belonging to a first domain. The first domain may contain multiple caches. The value of the domain state field may indicate whether its associated cache line can be read or changed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Domain state","description":"Method and apparatus to efficiently maintain cache coherency by reading/writing a domain state field associated with a tag entry within a cache tag directory. A value may be assigned to a domain state","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9588889","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-9588889","citation_suggestion":"Patentable. \"Domain state\" (US-9588889). https://patentable.app/patents/US-9588889","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9588889","json":"https://patentable.app/api/llm-context/US-9588889","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:41:12.895Z"}