| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna device capable of precisely recognizing approach of an object from a predetermined direction or making something recognize it without having any effect on a posture state of the device itself. <P>SOLUTION: An antenna device 100 includes: a plurality of directional antennae 103; an antenna supporting section 102 for supporting the plurality of directional antennae; and an operation control section 105 for controlling a gain of a signal input or output from at least one of the plurality of directional antennae 103, based on a posture state and moving direction of the antenna supporting section 102. <P>COPYRIGHT: (C)2012,JPO&INPIT |
