PORTABLE MACHINE FOR LOCKING OR UNLOCKING DEVICE

PROBLEM TO BE SOLVED: To provide a portable machine for a locking or unlocking device which widens a receiving range by integrating a plurality of receiving antennae without jumboizing the portable machine, and which is provided with the receiving antenna with a high sensitivity by reducing interference between the antennae as much as possible. SOLUTION: The first and the second coil antennae 35X, 35Y forming a receiving antenna 35 are used as bar coil antennae, and the third coil antenna 35Z is used as a loop coil antenna, The second coil antenna 35Y is arranged in the loop of the third coil antenna 35Z and the first coil antenna 35X is arranged near to the outer periphery of the third coil antenna 35Z respectively. The portable machine 30 is provided with the receiving antenna 35 in which respective coil antennae 35X, 35Y, 35Z are arranged to cross each other at right. angles. COPYRIGHT: (C)2004,JPO