| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic equipment and its control method which can certainly detect received data even if an induced electromotive force of coil is small. SOLUTION: The electronic equipment receiving data through coil intermittently switches the induced current which passes in coil corresponding to magnetic field signal SDS transmitted from the outside at predetermined timing synchronized with the magnetic field signal SDS by P2 gate signal, and chopper-boosts induced voltage of coil (a voltage of output terminal O2). Since the received data is determined based on this induced voltage, it can be easily determined, and if a metal case is used for an exterior of electronic equipment it can be certainly detected. |
