{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11521625","patent":{"patent_number":"US-11521625","title":"Audio signal coding apparatus, audio signal decoding apparatus, audio signal coding method, and audio signal decoding method","assignee":null,"inventors":[],"filing_date":"2020-03-17T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","G10L"],"num_claims":13,"abstract":"An audio signal coding apparatus includes a time-frequency transformer that outputs sub-band spectra from an input signal; a sub-band energy quantizer; a tonality calculator that analyzes tonality of the sub-band spectra; a bit allocator that selects a second sub-band on which quantization is performed by a second quantizer on the basis of the analysis result of the tonality and quantized sub-band energy, and determines a first number of bits to be allocated to a first sub-band on which quantization is performed by a first quantizer; the first quantizer that performs first coding using the first number of bits; the second quantizer that performs coding using a second coding method; and a multiplexer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Audio signal coding apparatus, audio signal decoding apparatus, audio signal coding method, and audio signal decoding method","description":"An audio signal coding apparatus includes a time-frequency transformer that outputs sub-band spectra from an input signal; a sub-band energy quantizer; a tonality calculator that analyzes tonality of ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11521625","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-11521625","citation_suggestion":"Patentable. \"Audio signal coding apparatus, audio signal decoding apparatus, audio signal coding method, and audio signal decoding method\" (US-11521625). https://patentable.app/patents/US-11521625","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11521625","json":"https://patentable.app/api/llm-context/US-11521625","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:24:43.923Z"}