{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9640190","patent":{"patent_number":"US-9640190","title":"Decoding method, decoding apparatus, program, and recording medium therefor","assignee":null,"inventors":[],"filing_date":"2013-08-28T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L"],"num_claims":9,"abstract":"In a speech coding scheme based on a speech production model, such as a CELP-based scheme, an object of the present invention is to provide a decoding method that can reproduce natural sound even if the input signal is a noise-superimposed speech. The decoding method includes a speech decoding step of obtaining a decoded speech signal from an input code, a noise generating step of generating a noise signal that is a random signal, and a noise adding step of outputting a noise-added signal, the noise-added signal being obtained by summing the decoded speech signal and a signal obtained by performing, on the noise signal, a signal processing that is based on at least one of a power corresponding to a decoded speech signal for a previous frame and a spectrum envelope corresponding to the decoded speech signal for the current frame."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Decoding method, decoding apparatus, program, and recording medium therefor","description":"In a speech coding scheme based on a speech production model, such as a CELP-based scheme, an object of the present invention is to provide a decoding method that can reproduce natural sound even if t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9640190","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-9640190","citation_suggestion":"Patentable. \"Decoding method, decoding apparatus, program, and recording medium therefor\" (US-9640190). https://patentable.app/patents/US-9640190","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9640190","json":"https://patentable.app/api/llm-context/US-9640190","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:09:34.061Z"}