{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11238897","patent":{"patent_number":"US-11238897","title":"Method of playing system stream files with different recording formats","assignee":null,"inventors":[],"filing_date":"2020-09-10T00:00:00.000Z","publication_date":"2022-02-01T00:00:00.000Z","cpc_codes":["G11B","G06F","G11B","G11B","G11B","G11B","H04N","H04N","H04N","H04N","H04N","G06F","H04N"],"num_claims":3,"abstract":"A non-transitory tangible recording medium stores recorded AV data. The AV data includes a system stream file played by a playback device and a management information file having management information corresponding to the system stream file. The system stream file includes a first segment including repeated a first data unit that be decrypted using a first decryption key that the playback device individually has and a second data unit that cannot be decrypted by the first decryption key. The system stream file also includes a second segment which can be decrypted using a second decryption key that the playback device has in common with another playback device. The management information file has a start source packet number, which identifies a start source packet out of a plurality of source packets storing an I-picture that is a random access point, and the start source packet is situated in the second segment."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of playing system stream files with different recording formats","description":"A non-transitory tangible recording medium stores recorded AV data. The AV data includes a system stream file played by a playback device and a management information file having management informatio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11238897","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-11238897","citation_suggestion":"Patentable. \"Method of playing system stream files with different recording formats\" (US-11238897). https://patentable.app/patents/US-11238897","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11238897","json":"https://patentable.app/api/llm-context/US-11238897","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:21:02.321Z"}