{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9681220","patent":{"patent_number":"US-9681220","title":"Method for spatial filtering of at least one sound signal, computer readable storage medium and spatial filtering system based on cross-pattern coherence","assignee":null,"inventors":[],"filing_date":"2013-11-29T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04R","G10L","H04R","H04R","G10L","G10L","H04R","H04R"],"num_claims":26,"abstract":"Method for spatial filtering of at least one sound signal (M0; W(n)) includes the steps of: generation of a first, a second and a third captured sound signal by capturing of the respective sound signals by microphones characterized by directivity patterns of different orders; performing a short-time Fourier transformation of the captured, sound signal s; measuring a cross-pattern correlation or a cross-pattern coherence towards a desired direction ([phi]); calculation of a gain factor (G+) using a cross-pattern correlation based on time-averaged correlation or coherence between the first captured sound signal and the second captured sound signal; and applying the gain factor (G+) to the corresponding time-frequency positions in the third captured sound, signal (2.3; M0; W(n)). Independent patent claims also for a system and computer readable storage medium."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for spatial filtering of at least one sound signal, computer readable storage medium and spatial filtering system based on cross-pattern coherence","description":"Method for spatial filtering of at least one sound signal (M0; W(n)) includes the steps of: generation of a first, a second and a third captured sound signal by capturing of the respective sound signa","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9681220","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-9681220","citation_suggestion":"Patentable. \"Method for spatial filtering of at least one sound signal, computer readable storage medium and spatial filtering system based on cross-pattern coherence\" (US-9681220). https://patentable.app/patents/US-9681220","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9681220","json":"https://patentable.app/api/llm-context/US-9681220","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:30:22.600Z"}