| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable device capable of suppressing the occurrence of communication failure derived from disturbance such as noise. <P>SOLUTION: A portable device 10 comprises a transmission part 13 capable of transmitting a locking/unlocking operation signal based on an operation performed on an operation part 14 at any of a plurality of frequencies; and transmission controlling means that performs transmission control for allowing the transmission part 13 to transmit the locking/unlocking operation signal at one of the plural frequencies set as a transmission frequency and performs frequency change control for changing the transmission frequency of the locking/unlocking operation signal to another frequency when a precedently set frequency change operation is performed on the operation part 14. <P>COPYRIGHT: (C)2012,JPO&INPIT |
