{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11528571","patent":{"patent_number":"US-11528571","title":"Microphone occlusion detection","assignee":null,"inventors":[],"filing_date":"2021-01-15T00:00:00.000Z","publication_date":"2022-12-13T00:00:00.000Z","cpc_codes":["H04R","G10L","G10L","G10L","G10L","H04R","H04R","H04R","H04R","H04R"],"num_claims":18,"abstract":"A system configured to perform microphone occlusion event detection. When a device detects a microphone occlusion event, the device will modify audio processing performed prior to speech processing, such as by disabling spatial processing and only processing audio data from a single microphone. The device detects the microphone occlusion event by determining inter-level difference (ILD) values between two microphone signals and using the ILD values as input features to a classifier. For example, when a far-end reference signal is inactive, the classifier may process a first ILD value within a high frequency band. However, when the far-end reference signal is active, the classifier may process the first ILD value and a second ILD value within a low frequency band."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Microphone occlusion detection","description":"A system configured to perform microphone occlusion event detection. When a device detects a microphone occlusion event, the device will modify audio processing performed prior to speech processing, s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11528571","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-11528571","citation_suggestion":"Patentable. \"Microphone occlusion detection\" (US-11528571). https://patentable.app/patents/US-11528571","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11528571","json":"https://patentable.app/api/llm-context/US-11528571","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:38:12.004Z"}