{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9730057","patent":{"patent_number":"US-9730057","title":"Apparatus for managing members of at least one group of decoders having access to broadcast data","assignee":null,"inventors":[],"filing_date":"2015-06-26T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["G11B","H04L","H04L","H04L","H04N","H04N","H04N","H04N","H04N","H04N","H04N","G11B","H04L"],"num_claims":14,"abstract":"A technique to manage members of a group of decoders having access to broadcast data, each group member sharing a common broadcast encryption scheme (BES) comprising the steps of, in a stage for a decoder to become a group member, receiving keys pertaining to the position in the group according to the BES, receiving a current group access data comprising a current group access key, and in a stage of accessing broadcast data, using the current group access data to access the broadcast data, and in a stage of renewing the current group access key, sending a first group message comprising at lease a next group access key encrypted so that only non-revoked decoders can access it, said group message being further encrypted by the current group access key, updating the current group access key with the next group access key."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus for managing members of at least one group of decoders having access to broadcast data","description":"A technique to manage members of a group of decoders having access to broadcast data, each group member sharing a common broadcast encryption scheme (BES) comprising the steps of, in a stage for a dec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9730057","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-9730057","citation_suggestion":"Patentable. \"Apparatus for managing members of at least one group of decoders having access to broadcast data\" (US-9730057). https://patentable.app/patents/US-9730057","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9730057","json":"https://patentable.app/api/llm-context/US-9730057","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:19:57.529Z"}