{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503675","patent":{"patent_number":"US-8503675","title":"Cable television secure communication system for one way restricted","assignee":null,"inventors":[],"filing_date":"2009-02-24T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["H04L","H04L","H04N","H04N","H04N","H04N"],"num_claims":202,"abstract":"Methods and apparatus permit a one-way downloadable security for electronic signals such as cable television, free-to-air, direct broadcast satellite, electronic device enablement, and other services. The system can allow a broadcast transmission capability (1) to provide an encrypted signal to an individual reception capability (2) in a manner that maintains the full security of a traditional decryption key process while completely eliminating any need for a trusted authority. By including a nascent decryption key generator that may create a secure, key-based environment from an unsecure individualized information transmission (12), a sequence of key(s) from a root key(s) to a derived key(s) to a temporary key(s) and ultimately to a fully random key(s) can be generated in activating a device or a decryption capability for a subscriber."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Cable television secure communication system for one way restricted","description":"Methods and apparatus permit a one-way downloadable security for electronic signals such as cable television, free-to-air, direct broadcast satellite, electronic device enablement, and other services.","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503675","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-8503675","citation_suggestion":"Patentable. \"Cable television secure communication system for one way restricted\" (US-8503675). https://patentable.app/patents/US-8503675","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503675","json":"https://patentable.app/api/llm-context/US-8503675","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:21:49.914Z"}