{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9613632","patent":{"patent_number":"US-9613632","title":"Signal processing device, signal processing method and signal processing program","assignee":null,"inventors":[],"filing_date":"2011-09-26T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["G10L","H04M","G10L"],"num_claims":9,"abstract":"To achieve sufficient noise cancellation when a reference signal cannot be captured in the proximity of a noise source.The present invention is characterized by comprising: a first input means for obtaining a first mixed signal in which a first signal and a second signal are mixed; a second input means for obtaining a second mixed signal in which the first signal and the second signal are mixed in a different ratio from the first mixed signal; a delay means for generating a delayed first mixed signal by delaying the first mixed signal with a delay amount based on transmission distance from a generation source of the second signal to the second input means; a subtracting means for outputting an estimated first signal in which a pseudo second signal is subtracted from the delayed first mixed signal; and an adaptive filtering means for generating the pseudo second signal applying coefficients which are updated based on the estimated first signal to the second mixed signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Signal processing device, signal processing method and signal processing program","description":"To achieve sufficient noise cancellation when a reference signal cannot be captured in the proximity of a noise source.The present invention is characterized by comprising: a first input means for obt","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9613632","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-9613632","citation_suggestion":"Patentable. \"Signal processing device, signal processing method and signal processing program\" (US-9613632). https://patentable.app/patents/US-9613632","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9613632","json":"https://patentable.app/api/llm-context/US-9613632","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:47:05.490Z"}