{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8542818","patent":{"patent_number":"US-8542818","title":"Vehicle call device, call system, center, and calling method","assignee":null,"inventors":[],"filing_date":"2008-10-15T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["H04M"],"num_claims":7,"abstract":"A vehicle call device, a call system, a center, and a calling method capable of detecting a problem while controlling the cost increase are disclosed. The vehicle call device includes a speaker mounted in a vehicle, the speaker outputting a received voice of an opposite communication party; a microphone mounted in the vehicle; an echo canceller unit removing the received voice that has been output from the speaker and input into the microphone; a detecting unit detecting an emergency situation of the vehicle; and a remove preventing unit preventing the eco canceller unit from removing the received voice when the detecting unit detects the emergency situation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Vehicle call device, call system, center, and calling method","description":"A vehicle call device, a call system, a center, and a calling method capable of detecting a problem while controlling the cost increase are disclosed. The vehicle call device includes a speaker mounte","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8542818","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-8542818","citation_suggestion":"Patentable. \"Vehicle call device, call system, center, and calling method\" (US-8542818). https://patentable.app/patents/US-8542818","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8542818","json":"https://patentable.app/api/llm-context/US-8542818","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:24:30.727Z"}