| 摘要 |
PURPOSE:To register an identification code while confirming user's intention of registering it by storing the identification code as a newly registered identification code when plural identification codes received within a prescribed time are coincident. CONSTITUTION:At the time of receiving a first identification code from a transmitter 1, a timer is started and the received identification code is temporarily stored in a memory 24. Then, at the time of receiving a second identification code, the code is collated with the first identification code which is temporarily stored in the memory 24. When both of them are the same, whether the code is received within the prescribed time after the reception of the first identification code or not is discriminated and when it is, the first identification code is stored in a nonvolatile memory 23 as the newly registerd identification code. On the other hand, when a prescribed time passes from the reception of the first identification code or it is discriminated that the first and the second identification codes are not the same, the first identification code which is temporarily stored in the memory 24 is erased. |
