{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11257488","patent":{"patent_number":"US-11257488","title":"Source localization method by using steering vector estimation based on on-line complex Gaussian mixture model","assignee":null,"inventors":[],"filing_date":"2019-03-12T00:00:00.000Z","publication_date":"2022-02-22T00:00:00.000Z","cpc_codes":["G01S","G10L","G01S","G10L","G10L","G10L"],"num_claims":4,"abstract":"Provided is a source localization in an apparatus for performing a source localization, a target sound source enhancement or speech recognition. The source localization method using input signals input from a plurality of microphones, comprising steps of: (a) obtaining a log likelihood function or an auxiliary function under the assumption that a target source signal mixed with noises satisfies a CGMM model; (b) obtaining an equation for estimating parameter values of the log likelihood function or the auxiliary function so that a value of the log likelihood function or the auxiliary function is maximized recursively in each time frame; (c) estimating a covariance matrix recursively in each time frame; and (d) estimating a steering vector recursively by using the estimated covariance matrix, wherein the steering vector of the target sound source is estimated from the input signals."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Source localization method by using steering vector estimation based on on-line complex Gaussian mixture model","description":"Provided is a source localization in an apparatus for performing a source localization, a target sound source enhancement or speech recognition. The source localization method using input signals inpu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11257488","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-11257488","citation_suggestion":"Patentable. \"Source localization method by using steering vector estimation based on on-line complex Gaussian mixture model\" (US-11257488). https://patentable.app/patents/US-11257488","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11257488","json":"https://patentable.app/api/llm-context/US-11257488","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:46:51.302Z"}