{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9609431","patent":{"patent_number":"US-9609431","title":"Interested audio source cancellation method and voice recognition method and voice recognition apparatus thereof","assignee":null,"inventors":[],"filing_date":"2012-12-17T00:00:00.000Z","publication_date":"2017-03-28T00:00:00.000Z","cpc_codes":["H04R","G10L","G10L","H04R","G10L","H04R"],"num_claims":17,"abstract":"Provided are an interested audio source cancellation method, a voice recognition method using the interested audio source cancellation method, computer-readable recording media recording programs for implementing the methods, and a voice recognition apparatus for performing voice recognition by using the interested audio source cancellation method. The interested audio source cancellation method includes steps of: receiving input mixed signals from two microphones and transforming the signals into a time-frequency domain through short-term Fourier transformation; setting an interested audio source cancellation vector for cancelling an interested audio source signal from the input mixed signals in the time-frequency domain; and generating a mixed noise signal by cancelling the interested audio source signal from the input mixed signals by using the interested audio source cancellation vector."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Interested audio source cancellation method and voice recognition method and voice recognition apparatus thereof","description":"Provided are an interested audio source cancellation method, a voice recognition method using the interested audio source cancellation method, computer-readable recording media recording programs for ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9609431","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-9609431","citation_suggestion":"Patentable. \"Interested audio source cancellation method and voice recognition method and voice recognition apparatus thereof\" (US-9609431). https://patentable.app/patents/US-9609431","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9609431","json":"https://patentable.app/api/llm-context/US-9609431","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T19:27:58.325Z"}