{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11533559","patent":{"patent_number":"US-11533559","title":"Beamformer enhanced direction of arrival estimation in a reverberant environment with directional noise","assignee":null,"inventors":[],"filing_date":"2019-11-14T00:00:00.000Z","publication_date":"2022-12-20T00:00:00.000Z","cpc_codes":["H04R","G01S","G10L","G10L","G10L","G10L","H04R"],"num_claims":14,"abstract":"An estimator of direction of arrival (DOA) of speech from a far-field talker to a device in the presence of room reverberation and directional noise includes audio inputs received from multiple microphones and one or more beamformer outputs generated by processing the microphone inputs. A first DOA estimate is obtained by performing generalized cross-correlation between two or more of the microphone inputs. A second DOA estimate is obtained by performing generalized cross-correlation between one of the one or more beamformer outputs and one or more of: the microphone inputs and other of the one or more beamformer outputs. A selector selects the first or second DOA estimate based on an SNR estimate at the microphone inputs and a noise reduction amount estimate at the beamformer outputs. The SNR and noise reduction estimates may be obtained based on the detection of a keyword spoken by a desired talker."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Beamformer enhanced direction of arrival estimation in a reverberant environment with directional noise","description":"An estimator of direction of arrival (DOA) of speech from a far-field talker to a device in the presence of room reverberation and directional noise includes audio inputs received from multiple microp","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11533559","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-11533559","citation_suggestion":"Patentable. \"Beamformer enhanced direction of arrival estimation in a reverberant environment with directional noise\" (US-11533559). https://patentable.app/patents/US-11533559","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11533559","json":"https://patentable.app/api/llm-context/US-11533559","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:29:03.248Z"}