{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9838646","patent":{"patent_number":"US-9838646","title":"Attenuation of loudspeaker in microphone array","assignee":null,"inventors":[],"filing_date":"2015-09-24T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["H04N","H04N","H04R","H04R","H04R","H04R"],"num_claims":17,"abstract":"In one implementation, an apparatus includes a camera, a loudspeaker, a plurality of microphones, and a controller. The apparatus may be a computer, a mobile device such as a smart phone, or a dedicated videoconference device. The plurality of microphones are configured to produce sound data. A first number of the plurality of microphones are arranged on a first side of the loudspeaker, and a second number of the plurality of microphones are arranged on a second side of the loudspeaker. Different quantities of the microphones may be included on each side of the loudspeaker. The controller is configured to calculate a cross-correlation of the plurality of microphones based on the sound data and attenuate the cross-correlation based on a time-delay window and an attenuation factor. A participant location is determined based on the attenuated cross correlation functions."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Attenuation of loudspeaker in microphone array","description":"In one implementation, an apparatus includes a camera, a loudspeaker, a plurality of microphones, and a controller. The apparatus may be a computer, a mobile device such as a smart phone, or a dedicat","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9838646","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-9838646","citation_suggestion":"Patentable. \"Attenuation of loudspeaker in microphone array\" (US-9838646). https://patentable.app/patents/US-9838646","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9838646","json":"https://patentable.app/api/llm-context/US-9838646","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:05:12.838Z"}