{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8526585","patent":{"patent_number":"US-8526585","title":"Communication terminal device","assignee":null,"inventors":[],"filing_date":"2010-01-22T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["H04M","H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":17,"abstract":"A communication terminal devicecapable of being connected with an external telephone and of receiving and transmitting facsimile data from and to a network, includes: an off-hook detector configured to detect an off-hook condition of the external telephone, an semiconductor DAA (Data Access Arrangement) including an impedance switcher configured to switch impedances and a direct-current resistance switcher configured to switch direct-current resistances; an impedance switching controller configured to instruct the impedance switcher to switch the impedances; a direct-current resistance switching controller configured to instruct the direct-current resistance switcher to switch the direct-current resistances, wherein, when the off-hook detector detects the off-hook condition of the external telephone, the impedance switching controller instructs the impedance switcher to switch the impedances and the direct-current resistance switching controller instructs the direct-current resistance switcher to switch the direct-current resistances."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Communication terminal device","description":"A communication terminal devicecapable of being connected with an external telephone and of receiving and transmitting facsimile data from and to a network, includes: an off-hook detector configured t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8526585","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-8526585","citation_suggestion":"Patentable. \"Communication terminal device\" (US-8526585). https://patentable.app/patents/US-8526585","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8526585","json":"https://patentable.app/api/llm-context/US-8526585","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:06:46.260Z"}