| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of reading in data from outside in completed state and performing data receiving by utilizing existing composition elements without any special reception circuit. SOLUTION: A drive pulse generation means 3 outputs a drive pulse commanding electric supply to the drive coil 5 of a step motor to a motor driver 4. A magnetic field detection/rotation detection means 6 detects the rotation of the motor and exterior magnetic field with a driving coil 5. According to these detection results, it generates control signals for generation control of drive pulse in the drive pulse generation means 3. A data control means 7 detects alternating current magnetic field or direct current magnetic field given by an external data transmitter by way of the magnetic field detection/rotation detection means 6 in resonance with the generation period of drive pulse by the drive pulse generation means 3, gains digital information from the detection results and writes in a memory means 8. |
