{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10515194","patent":{"patent_number":"US-10515194","title":"Key rotation scheme for DRM system in dash-based media service","assignee":null,"inventors":[],"filing_date":"2017-08-22T00:00:00.000Z","publication_date":"2019-12-24T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","H04L","H04L","H04L","H04L","G06F","H04L"],"num_claims":5,"abstract":"Disclosed herein is a key rotation scheme for a DRM system in a DASH-based media content service. A DASH encoder generates media decryption keys and provides a key list including the media decryption keys to a CP manager. Each media decryption key is identified by a key identifier (KID). The CP manager delivers the key list to a license server. The license server creates ECLs based on the key list, and delivers an ECL list including ECLs to the CP manager. Each ECL is identified by KID and includes an encrypted media decryption key and an encrypted KID. The CP manager generates a pssh box in which the ECL list is inserted into a data field, and delivers the pssh box to the DASH encoder. The DASH encoder delivers the pssh box to a client device, with the pssh box being included in a DASH MPD or media segment."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Key rotation scheme for DRM system in dash-based media service","description":"Disclosed herein is a key rotation scheme for a DRM system in a DASH-based media content service. A DASH encoder generates media decryption keys and provides a key list including the media decryption ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10515194","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-10515194","citation_suggestion":"Patentable. \"Key rotation scheme for DRM system in dash-based media service\" (US-10515194). https://patentable.app/patents/US-10515194","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10515194","json":"https://patentable.app/api/llm-context/US-10515194","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T23:15:25.201Z"}