{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472975","patent":{"patent_number":"US-8472975","title":"Positioning support device and positioning support method","assignee":null,"inventors":[],"filing_date":"2010-01-22T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["G01S","G01S"],"num_claims":8,"abstract":"Highly-accurate approximate positional information is transmitted to a communication terminal. An approximate positional information database of a server included in a positioning support system includes approximate positional information used for positioning calculation at the communication terminal and which indicates a position of a cell in which the communication terminal is located and a cell identifier identifying the cell, with approximate positional information and the cell being associated with each other. Based on a positioning information transmission request which includes a cell and which is transmitted from the communication terminal, approximate positional information stored in the approximate positional information database is acquired and transmitted from a communication unit to the communication terminal. Positioning result information indicating a result of the positioning calculation transmitted from the communication terminal is received and, based on this information, approximate positional information stored in the approximate positional information database is updated by a control unit. The accuracy of approximate positional information is enhanced due to the approximate positional information stored in the approximate positional information database being updated based on positioning result information."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Positioning support device and positioning support method","description":"Highly-accurate approximate positional information is transmitted to a communication terminal. An approximate positional information database of a server included in a positioning support system inclu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472975","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-8472975","citation_suggestion":"Patentable. \"Positioning support device and positioning support method\" (US-8472975). https://patentable.app/patents/US-8472975","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472975","json":"https://patentable.app/api/llm-context/US-8472975","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:29:29.159Z"}