| 摘要 |
A vibrational alarm device (10) for use in combination with an alarm clock (20), comprises a receiver (200) for receiving a RF alarm signal transmitted by the alarm clock (20), an operating circuit (300) for providing an operating signal in response to the receiver (200) receiving the alarm signal, and an electro-mechanical vibrator (400) for vibration in response to the operating signal provided by the operating circuit (300). There is also a casing (100) housing the receiver (200), the operating circuit (300) and the vibrator (400) for vibration by the vibrator (400) to thereby provide a vibrational alarm signal.
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