{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8504362","patent":{"patent_number":"US-8504362","title":"Noise reduction for speech recognition in a moving vehicle","assignee":null,"inventors":[],"filing_date":"2009-07-21T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L"],"num_claims":18,"abstract":"A speech recognition system includes: a speed level classifier for measuring a moving speed of a moving object by using a noise signal at an initial time of speech recognition to determine a speed level of the moving object; a first speech enhancement unit for enhancing sound quality of an input speech signal of the speech recognition by using a Wiener filter, if the speed level of the moving object is equal to or lower than a specific level; and a second speech enhancement unit enhancing the sound quality of the input speech signal by using a Gaussian mixture model, if the speed level of the moving object is higher than the specific level. The system further includes an end point detection unit for detecting start and end points, an elimination unit for eliminating sudden noise components based on a sudden noise Gaussian mixture model."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Noise reduction for speech recognition in a moving vehicle","description":"A speech recognition system includes: a speed level classifier for measuring a moving speed of a moving object by using a noise signal at an initial time of speech recognition to determine a speed lev","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8504362","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-8504362","citation_suggestion":"Patentable. \"Noise reduction for speech recognition in a moving vehicle\" (US-8504362). https://patentable.app/patents/US-8504362","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8504362","json":"https://patentable.app/api/llm-context/US-8504362","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:02:31.186Z"}