{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11467244","patent":{"patent_number":"US-11467244","title":"Device and method for estimating direction of arrival of sound from a plurality of sound sources","assignee":null,"inventors":[],"filing_date":"2020-04-24T00:00:00.000Z","publication_date":"2022-10-11T00:00:00.000Z","cpc_codes":["G01S","G01S"],"num_claims":10,"abstract":"A device estimates direction of arrival (DOA) of sound from  sound sources received by P microphones, wherein P≥>1. The device is configured to transform the output signals of the microphones into the frequency domain and compute a covariance matrix for each of N frequency bins in a range of frequencies of the sound. Further, the device is configured to calculate an adapted covariance matrix from each of the covariance matrices for wide-band merging, calculate an accumulated covariance matrix from the N adapted covariance matrices, and estimate the DOA for each of the sound sources based on the accumulated covariance matrix. In order to calculate an adapted covariance matrix from a covariance matrix, the device is configured to spectrally decompose the covariance matrix and obtain a plurality of eigenvectors, rotate each obtained eigenvector, and construct each rotated eigenvector back to the shape of the covariance matrix."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Device and method for estimating direction of arrival of sound from a plurality of sound sources","description":"A device estimates direction of arrival (DOA) of sound from  sound sources received by P microphones, wherein P≥>1. The device is configured to transform the output signals of the microphones into the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11467244","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-11467244","citation_suggestion":"Patentable. \"Device and method for estimating direction of arrival of sound from a plurality of sound sources\" (US-11467244). https://patentable.app/patents/US-11467244","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11467244","json":"https://patentable.app/api/llm-context/US-11467244","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:33:23.268Z"}