{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9685171","patent":{"patent_number":"US-9685171","title":"Multiple-stage adaptive filtering of audio signals","assignee":null,"inventors":[],"filing_date":"2012-11-20T00:00:00.000Z","publication_date":"2017-06-20T00:00:00.000Z","cpc_codes":["G10L","G10L"],"num_claims":20,"abstract":"The systems, devices, and processes described herein may include a first microphone that detects a target voice of a user within an environment and a second microphone that detects other noise within the environment. A target voice estimate and/or a noise estimate may be generated based at least in part on one or more adaptive filters. Based at least in part on the voice estimate and/or the noise estimate, an enhanced target voice and an enhanced interference, respectively, may be determined. One or more words that correspond to the target voice may be determined based at least in part on the enhanced target voice and/or the enhanced interference. In some instances, the one or more words may be determined by suppressing or canceling the detected noise."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multiple-stage adaptive filtering of audio signals","description":"The systems, devices, and processes described herein may include a first microphone that detects a target voice of a user within an environment and a second microphone that detects other noise within ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9685171","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-9685171","citation_suggestion":"Patentable. \"Multiple-stage adaptive filtering of audio signals\" (US-9685171). https://patentable.app/patents/US-9685171","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9685171","json":"https://patentable.app/api/llm-context/US-9685171","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:15:37.818Z"}