{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9712825","patent":{"patent_number":"US-9712825","title":"Method of deriving quantization parameter with differental and predicted quantization parameters","assignee":null,"inventors":[],"filing_date":"2015-09-11T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":7,"abstract":"An apparatus of decoding an image is discussed. The apparatus can include an intra prediction unit for generating a prediction block using an intra prediction mode of a current prediction unit; an inverse scanning unit for inversely scanning significant flags, coefficient signs and coefficient levels according to an inverse scan pattern which is selected based on the intra prediction mode and a size of a transform unit to generate a quantized block; an inverse quantization unit for inversely quantizing the quantized block using a quantization parameter and a quantization matrix to generate a transform block; an inverse transform unit for inversely transform the transform block to generate a residual block; and an adder for adding the prediction block and the residual block to generate a reconstructed block."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of deriving quantization parameter with differental and predicted quantization parameters","description":"An apparatus of decoding an image is discussed. The apparatus can include an intra prediction unit for generating a prediction block using an intra prediction mode of a current prediction unit; an inv","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9712825","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-9712825","citation_suggestion":"Patentable. \"Method of deriving quantization parameter with differental and predicted quantization parameters\" (US-9712825). https://patentable.app/patents/US-9712825","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9712825","json":"https://patentable.app/api/llm-context/US-9712825","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:20:42.401Z"}