{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11238879","patent":{"patent_number":"US-11238879","title":"Acoustic delay measurement using adaptive filter with programmable delay buffer","assignee":null,"inventors":[],"filing_date":"2018-10-31T00:00:00.000Z","publication_date":"2022-02-01T00:00:00.000Z","cpc_codes":["G10L","G10L","H04R","H04R","G10L"],"num_claims":15,"abstract":"An acoustic delay measurement apparatus measures an audio delay introduced by an audio system. A programmable delay buffer, which introduces a programmable delay into the audio stream, receives an audio stream from an audio source and outputs a reference signal representing the audio stream. An adaptive filter is responsive to the reference signal to generate an estimate signal to match on convergence of the adaptive filter an audio signal output by the audio system, which is the audio stream delayed by an amount representative of the audio delay introduced by the audio system. A processor including a coefficient analysis block reads coefficients in the adaptive filter after convergence, computes a delay introduced into said estimate signal by the adaptive filter, and adds the computed delay to the programmable delay buffer to provide a measurement of the audio delay."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Acoustic delay measurement using adaptive filter with programmable delay buffer","description":"An acoustic delay measurement apparatus measures an audio delay introduced by an audio system. A programmable delay buffer, which introduces a programmable delay into the audio stream, receives an aud","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11238879","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-11238879","citation_suggestion":"Patentable. \"Acoustic delay measurement using adaptive filter with programmable delay buffer\" (US-11238879). https://patentable.app/patents/US-11238879","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11238879","json":"https://patentable.app/api/llm-context/US-11238879","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:19:44.800Z"}