{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9832569","patent":{"patent_number":"US-9832569","title":"Multichannel acoustic echo cancellation with unique individual channel estimations","assignee":null,"inventors":[],"filing_date":"2016-12-05T00:00:00.000Z","publication_date":"2017-11-28T00:00:00.000Z","cpc_codes":["H04R","G10L","H04M","H04R","G10L"],"num_claims":20,"abstract":"A multi-channel echo cancellation system that dynamically adapts to changes in acoustic conditions. The system does not require a sequence of “start-up” tones to determine the impulse responses. Rather, the adaptive filters approximate estimated transfer functions for each channel. A secondary adaptive filter adjusts cancellation to adapt to changes in the actual transfer functions over time after the adaptive filters have been trained, even if the reference signals are not unique relative to each other."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multichannel acoustic echo cancellation with unique individual channel estimations","description":"A multi-channel echo cancellation system that dynamically adapts to changes in acoustic conditions. The system does not require a sequence of “start-up” tones to determine the impulse responses. Rathe","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9832569","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-9832569","citation_suggestion":"Patentable. \"Multichannel acoustic echo cancellation with unique individual channel estimations\" (US-9832569). https://patentable.app/patents/US-9832569","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9832569","json":"https://patentable.app/api/llm-context/US-9832569","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:42:54.228Z"}