{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8542936","patent":{"patent_number":"US-8542936","title":"Image encoding and decoding device","assignee":null,"inventors":[],"filing_date":"2011-08-17T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":16,"abstract":"A picture encoding device may include a unit for selecting a division method of a target region, and a unit for dividing the target region into small regions using the division method, generating a prediction signal in the small region, generating a residual signal between the prediction signal and the original signal of the small region, generating quantized transform coefficients by performing frequency transform and quantization of the residual signal, selecting a map for mapping the quantized transform coefficients of the small region onto leaves of a tree structure that is common to a plurality of division methods in accordance with attribute information of the small region, mapping the quantized transform coefficients of the small region onto the leaves of the tree structure based on the map, and updating the states of the nodes and leaves of the tree structure according to the coefficient values of the respective leaves."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image encoding and decoding device","description":"A picture encoding device may include a unit for selecting a division method of a target region, and a unit for dividing the target region into small regions using the division method, generating a pr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8542936","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-8542936","citation_suggestion":"Patentable. \"Image encoding and decoding device\" (US-8542936). https://patentable.app/patents/US-8542936","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8542936","json":"https://patentable.app/api/llm-context/US-8542936","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:37:57.976Z"}