In a communication system for downloading programs from a center (11) to in-vehicle terminals (21), a center can check whether downloading has been completed normally or a program is operating normally in an in-vehicle terminal. According to the timing of activating a downloaded program, an in-vehicle terminal (21) checks whether the program is activated to operate normally. The information is transmitted to the center (11). Based on the information, the center (11) becomes aware of the fact that downloading has been completed without any problem and that the program is operating normally in the in-vehicle terminal (21).
申请公布号
EP1594056(A2)
申请公布日期
2005.11.09
申请号
EP20050014964
申请日期
1999.12.15
申请人
FUJITSU TEN LIMITED;TOYOTA JIDOSHA KABUSHIKI KAISHA;AISIN AW CO., LTD.;DENSO CORPORATION;MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD