{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9736599","patent":{"patent_number":"US-9736599","title":"Method for evaluating a useful signal and audio device","assignee":null,"inventors":[],"filing_date":"2015-10-02T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H04R","H04R","G10L","G10L","H04R"],"num_claims":10,"abstract":"A high-performance method evaluates a useful signal of an audio device, and in particular of an audio apparatus, for example for reducing interference. Accordingly, in the method at least two microphone signals are each obtained from a sound signal and a reference signal is obtained from the microphone signals, a portion of the microphone signals from a predetermined direction being blocked. The microphone signals are filtered by a filter such that an evaluation signal is obtained. To that end, a coherence value is determined from portions of the reference signal and a power density value is determined from the coherence value. The filter is parameterized on the basis of the power density value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for evaluating a useful signal and audio device","description":"A high-performance method evaluates a useful signal of an audio device, and in particular of an audio apparatus, for example for reducing interference. Accordingly, in the method at least two micropho","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9736599","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-9736599","citation_suggestion":"Patentable. \"Method for evaluating a useful signal and audio device\" (US-9736599). https://patentable.app/patents/US-9736599","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9736599","json":"https://patentable.app/api/llm-context/US-9736599","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:23:37.817Z"}