{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503687","patent":{"patent_number":"US-8503687","title":"System identification device and system identification method","assignee":null,"inventors":[],"filing_date":"2008-09-19T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["H04M","G10L","G10L"],"num_claims":12,"abstract":"The system identifying device preferably includes adaptive and dependent filters which receive a signal supplied through a first input terminal, a dependent filter factor updating unit for updating the filter factor of the dependent filter according to the filter factor of the adaptive filter, a first subtracter for subtracting the output signal outputted from the adaptive filter from the signal supplied through a second input terminal, a first output error mean computing section for computing a first output error mean from the output signal outputted from the first subtracter, a second subtracter for subtracting the output signal outputted from the dependent filter from the signal supplied through the second input terminal, a second output error mean computing section for computing a second output error mean from the output signal outputted from the second subtracter, and a compactor for comparing the first and second output error means."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System identification device and system identification method","description":"The system identifying device preferably includes adaptive and dependent filters which receive a signal supplied through a first input terminal, a dependent filter factor updating unit for updating th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503687","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-8503687","citation_suggestion":"Patentable. \"System identification device and system identification method\" (US-8503687). https://patentable.app/patents/US-8503687","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503687","json":"https://patentable.app/api/llm-context/US-8503687","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:37:03.138Z"}