{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472636","patent":{"patent_number":"US-8472636","title":"Ambient noise reduction arrangements","assignee":null,"inventors":[],"filing_date":"2007-01-17T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H04R"],"num_claims":23,"abstract":"A feedforward ambient noise reduction arrangement (10) includes, within a housing, a loudspeaker device for directing sound energy into an ear of a listener. Disposed externally of the housing, and positioned to sense ambient noise on its way to the listener's ear, are plural microphone devices (21-15) capable of converting the sensed ambient noise into electrical signals for application to the loudspeaker to generate an acoustic signal opposing the ambient noise. Importantly, the overall arrangement is such that the acoustic signal is generated by said loudspeaker means in substantial time alignment with the arrival of said ambient noise at the listener's ear."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ambient noise reduction arrangements","description":"A feedforward ambient noise reduction arrangement (10) includes, within a housing, a loudspeaker device for directing sound energy into an ear of a listener. Disposed externally of the housing, and po","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472636","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-8472636","citation_suggestion":"Patentable. \"Ambient noise reduction arrangements\" (US-8472636). https://patentable.app/patents/US-8472636","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472636","json":"https://patentable.app/api/llm-context/US-8472636","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T11:55:50.217Z"}