{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11270718","patent":{"patent_number":"US-11270718","title":"Signal processing apparatus and signal processing method","assignee":null,"inventors":[],"filing_date":"2018-09-18T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["G10L","H04M","G06N","G10L","G10L","H04B","H04M","H04R","H04R","H04R","H04R","G10L","G10L"],"num_claims":19,"abstract":"It is desirable to provide an echo cancellation technique that enables an environmental change to be flexibly addressed. Provided is a signal processing apparatus including: an echo cancellation unit that learns an estimated transfer characteristic in a space through which a signal reproduced by a speaker is input to a microphone, and performs echo cancellation on the basis of the estimated transfer characteristic learned; and an environmental change detection unit that detects an environmental change, in which the echo cancellation unit learns the estimated transfer characteristic by causing the speaker to reproduce a sound for learning on the basis of detection of the environmental change."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Signal processing apparatus and signal processing method","description":"It is desirable to provide an echo cancellation technique that enables an environmental change to be flexibly addressed. Provided is a signal processing apparatus including: an echo cancellation unit ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11270718","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-11270718","citation_suggestion":"Patentable. \"Signal processing apparatus and signal processing method\" (US-11270718). https://patentable.app/patents/US-11270718","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11270718","json":"https://patentable.app/api/llm-context/US-11270718","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:14:22.131Z"}