| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a card shape device where convenience is raised by automatizing the rotary operation of an antenna structural body. <P>SOLUTION: In the card shape device 1 with a radio communication function, a circuit board 2 is stored inside a card case 3. The device 1 includes the antenna structural body 4 which is arranged at the outer side of the card case 3 and is rotatable and displacable within the range of an operation between a falling state and an erecting state. A permanent magnet 13 is integrally arranged with the rotary shaft 12 of the antenna structural body 4. The device comprises a coil 17 which generates a coil magnetic field by energizing and generates the rotary torque of the rotary shaft 12 by an interaction between the coil magnetic field and the magnetic field of the permanent magnet 13; and a control circuit 20 which receives a radio communication start signal so as to energize the coil 17 with an electric current, generates the rotary torque of the rotary shaft 12 so as to rotate and displace the antenna structural body 4 in an erecting direction or receives a radio communication end signal so as to energize the coil 17 with the electric current, and generates the rotary torque of the rotary shaft 12 so as to rotate and displace the antenna structural body 4 in a falling direction. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
