{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9712817","patent":{"patent_number":"US-9712817","title":"Lossless video coding systems and methods","assignee":null,"inventors":[],"filing_date":"2014-02-18T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N"],"num_claims":20,"abstract":"In some embodiments, a lossless 2D video decoder includes multiple parallel speculative decoding engines, each performing a sample-determination calculation according to one of several possible context values for the current pixel to be decoded. The actual context depends on a quantized value of a local inter-pixel gradient, which may become available only when an immediately-neighboring pixel has been decoded. A multiplexer selects one of the decoding engine outputs when the immediately-neighboring pixel has been decoded and the actual context becomes available. A sample (e.g. luma and/or chroma) value for the current pixel may be determined according to: a baseline prediction generated by applying a median filter to immediately-neighboring pixels; a context-dependent adjustment dependent on local context statistics; and a delta (difference) value read from a video bitstream. Determining multiple context-dependent adjustments in parallel before the actual context is determined allows decoding one pixel per clock cycle."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Lossless video coding systems and methods","description":"In some embodiments, a lossless 2D video decoder includes multiple parallel speculative decoding engines, each performing a sample-determination calculation according to one of several possible contex","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9712817","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-9712817","citation_suggestion":"Patentable. \"Lossless video coding systems and methods\" (US-9712817). https://patentable.app/patents/US-9712817","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9712817","json":"https://patentable.app/api/llm-context/US-9712817","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:36:52.508Z"}