公式タイトルと情報はIP Exchange PlusとPremiumのユーザーのみが利用可能です。
特許 係属中 PROBLEM TO BE SOLVED: To provide a service provision determination system for providing service to a unit whose position cannot be detected, only when it is determined in a specific position. ; SOLUTION: A service providing unit transmits voice data, and arrival time T1 to send it from the own unit to a service use unit is computed.