{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8526281","patent":{"patent_number":"US-8526281","title":"Information recording method and apparatus, information recording medium, and information recording medium manufacturing method and apparatus","assignee":null,"inventors":[],"filing_date":"2008-04-21T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["H04N","G06F","G11B","G11B","G11B","G11B","G11B","H04N","G11B","G11B","G11B","H04N","H04N"],"num_claims":24,"abstract":"Content information (CI) is recorded, and then control information including an encryption key is recorded. The area in which the content information (CI) is written is shifted with respect to the user area (UIA) in a playback-only disc. The control information (SI) is written with an identical shift. As a result of the shift, content information (CI) or dummy data (DD) is written in the area (SIA) in which control information is recorded in a playback-only disc. Information indicating the value of the shift is selected randomly and deleted when the disc is removed from the recording apparatus. When encrypted content is downloaded and recorded on a recordable optical disc, the complete content can be recorded on the disc correctly just once."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Information recording method and apparatus, information recording medium, and information recording medium manufacturing method and apparatus","description":"Content information (CI) is recorded, and then control information including an encryption key is recorded. The area in which the content information (CI) is written is shifted with respect to the use","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8526281","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-8526281","citation_suggestion":"Patentable. \"Information recording method and apparatus, information recording medium, and information recording medium manufacturing method and apparatus\" (US-8526281). https://patentable.app/patents/US-8526281","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8526281","json":"https://patentable.app/api/llm-context/US-8526281","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:15:59.067Z"}