| 摘要 |
<P>PROBLEM TO BE SOLVED: To construct a train station operation system based on mobile phones, where countermeasures against unauthorized utilization is taken, without impairing the convenience of the users. <P>SOLUTION: A mobile phone, having a mobile phone function and a station affairs radio function implemented by a radio function module, is allowed to have a rail station affairs radio function module readily used as the radio function module continuously, in a state in which security is ensured and functions can be utilized independently. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
