{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9734814","patent":{"patent_number":"US-9734814","title":"Active noise reduction","assignee":null,"inventors":[],"filing_date":"2015-03-27T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H04R","H04R"],"num_claims":16,"abstract":"A noise reducing sound reproduction system comprises a loudspeaker that is connected to a loudspeaker input path and that radiates noise reducing sound. A microphone is connected to a microphone output path and picks up the noise or a residual thereof. An active noise reduction filter is connected between the microphone output path and the loudspeaker input path, and the active noise reduction filter comprises at least one shelving filter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Active noise reduction","description":"A noise reducing sound reproduction system comprises a loudspeaker that is connected to a loudspeaker input path and that radiates noise reducing sound. A microphone is connected to a microphone outpu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9734814","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-9734814","citation_suggestion":"Patentable. \"Active noise reduction\" (US-9734814). https://patentable.app/patents/US-9734814","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9734814","json":"https://patentable.app/api/llm-context/US-9734814","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:16:55.689Z"}