| 摘要 |
PURPOSE:To inform the presence of a call at low power consumption without the generation of a call tone by providing an electromagnet releasing a spiral spring mecahnism by the reception of a selective call signal and vibrating the drive of an eccentric weight. CONSTITUTION:When a signal is inputted to a circuit 1 via an antenna, the circuit compares a call signal with a code of a receiver to detect the presence of the call. Then the call signal is converted into a current, which drives an electromagnetic or the spiral spring mechanism 3 thereby releasing the spiral spring. Through the release, the rotary shaft is driven by the spiral spring wound up in advance by a spiral spring windup mechanism 5, the eccentric weight 4 fixed to the rotary shaft is driven to cause vibration. |
