{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11297418","patent":{"patent_number":"US-11297418","title":"Acoustic signal separation apparatus, learning apparatus, method, and program thereof","assignee":null,"inventors":[],"filing_date":"2019-05-20T00:00:00.000Z","publication_date":"2022-04-05T00:00:00.000Z","cpc_codes":["H04R","G10L","G10L","G10L","H04R","H04R","H04R","H04S","H04R","H04R"],"num_claims":19,"abstract":"An acoustic signal is separated based on a difference in the distance from a sound source to a microphone. By using a filter obtained by associating a value corresponding to an estimated value of a short-distance acoustic signal which is obtained by using “a predetermined function” from a second acoustic signal derived from signals collected by “a plurality of microphones” and is emitted from a position close to “the plurality of microphones” with a value corresponding to an estimated value of a long-distance acoustic signal which is emitted from a position far from “the plurality of microphones”, a desired acoustic signal representing at least one of a sound emitted from a position close to “a specific microphone” and a sound emitted from a position far from “the specific microphone” is acquired from a first acoustic signal derived from a signal collected by “the specific microphone”. Note that “the predetermined function” is a function which uses such an approximation that a sound emitted from the position close to “the plurality of microphones” is collected as a spherical wave, and a sound emitted from the position far from “the plurality of microphones” is collected as a plane wave."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Acoustic signal separation apparatus, learning apparatus, method, and program thereof","description":"An acoustic signal is separated based on a difference in the distance from a sound source to a microphone. By using a filter obtained by associating a value corresponding to an estimated value of a sh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11297418","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-11297418","citation_suggestion":"Patentable. \"Acoustic signal separation apparatus, learning apparatus, method, and program thereof\" (US-11297418). https://patentable.app/patents/US-11297418","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11297418","json":"https://patentable.app/api/llm-context/US-11297418","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T10:40:19.897Z"}