{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9747921","patent":{"patent_number":"US-9747921","title":"Signal processing apparatus, method, and program","assignee":null,"inventors":[],"filing_date":"2015-02-25T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","H04R","H04R","H04R","G10L"],"num_claims":6,"abstract":"A signal processing technique the noise suppressing performance of which is more improved than conventional one is provided. A first component extraction unit 14 extracts a non-stationary component ^φS(A)(ω, τ) derived from a sound coming from a target area and a stationary component ^φS(B)(ω, τ) derived from an incoherent noise from a power spectrum density ^φS(ω, τ) of the target area through processing of time average. A second component extraction unit 15 extracts a non-stationary component ^φN(A)(ω, τ) derived from an interference noise and a stationary component ^φN(B)(ω, τ) derived from an incoherent noise from a power spectrum density ^φN(ω, τ) of a noise area."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Signal processing apparatus, method, and program","description":"A signal processing technique the noise suppressing performance of which is more improved than conventional one is provided. A first component extraction unit 14 extracts a non-stationary component ^φ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9747921","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-9747921","citation_suggestion":"Patentable. \"Signal processing apparatus, method, and program\" (US-9747921). https://patentable.app/patents/US-9747921","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9747921","json":"https://patentable.app/api/llm-context/US-9747921","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:39:00.493Z"}