Patent attributes
A processing apparatus is mounted on a to-be-equipped body, transmits/receives signals to/from a portable transmitter portably carried by a user, and activates one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter. The processing apparatus includes a receiving unit, a transmitting unit, a judgment unit, a control unit, and an adjustment unit. The receiving unit receives the instruction signal transmitted from the portable transmitter. The transmitting unit transmits a response signal. The judgment unit judges whether or not an acknowledgement signal has been received from the portable transmitter. The control unit activates a function to be activated by the instruction information when the judgment unit concludes that the acknowledgement signal has been received. The adjustment unit adjusts an arrival distance of the response signal in accordance with the function to be activated by the instruction information.
