{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9674523","patent":{"patent_number":"US-9674523","title":"Methods and apparatus for transcoding digital video","assignee":null,"inventors":[],"filing_date":"2012-11-14T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N"],"num_claims":46,"abstract":"Methods and apparatus for transcoding digital video data are disclosed. In an embodiment, a transcoder (300) decodes a digital video block (304) using a first coding scheme, such as 8×8 MPEG-2/4, to produce domain transformed data (306) and a motion vector (308). The transcoder (300) then estimates an energy level of each sub-block in the digital video block (304) in the frequency domain (as opposed to the spatial domain), thereby reducing or eliminating the need for motion compensation. For each sub-block with an estimated energy level below a desired threshold (e.g., likely an all-zero sub-block), the transcoder (300) transcodes the sub-block by converting the motion vector (308) from the first coding scheme (e.g., MPEG-2/4) to the second coding scheme (e.g., H.264) (e.g., convert 8×8 MPEG-2/4 vector to 4×4 H.264 vector or reuse the MPEG-2/4 vector if all four sub-blocks are AZB and coding in H.264 as an 8×8 block). The transcoded sub-block may then be used (e.g., stored or transmitted)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for transcoding digital video","description":"Methods and apparatus for transcoding digital video data are disclosed. In an embodiment, a transcoder (300) decodes a digital video block (304) using a first coding scheme, such as 8×8 MPEG-2/4, to p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9674523","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-9674523","citation_suggestion":"Patentable. \"Methods and apparatus for transcoding digital video\" (US-9674523). https://patentable.app/patents/US-9674523","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9674523","json":"https://patentable.app/api/llm-context/US-9674523","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:05:00.342Z"}