{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8467529","patent":{"patent_number":"US-8467529","title":"Content reproduction apparatus, recording apparatus, recording and reproduction apparatus, and reproduction method","assignee":null,"inventors":[],"filing_date":"2009-04-13T00:00:00.000Z","publication_date":"2013-06-18T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":16,"abstract":"In an apparatus of reproducing contents in which an encryption key is to be changed at predetermined intervals for copyright protection purpose, the contents can be reproduced or specially reproduced with no problem such as fast forward, and fast rewind. For special reproduction, data and key information needed therefor are made ready in advance, and using the data and the key information, the contents are specially reproduced. Alternatively, an encryption key generation rule is defined in advance for use in generation of an encryption key. By making any needed key information ready in advance from this rule, the contents can be reproduced and specially reproduced with no problem."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Content reproduction apparatus, recording apparatus, recording and reproduction apparatus, and reproduction method","description":"In an apparatus of reproducing contents in which an encryption key is to be changed at predetermined intervals for copyright protection purpose, the contents can be reproduced or specially reproduced ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8467529","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-8467529","citation_suggestion":"Patentable. \"Content reproduction apparatus, recording apparatus, recording and reproduction apparatus, and reproduction method\" (US-8467529). https://patentable.app/patents/US-8467529","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8467529","json":"https://patentable.app/api/llm-context/US-8467529","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:25:41.788Z"}