| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a portable communication device and also to surely uniform a user of an incoming call. SOLUTION: A vibration device 109 is provided with a magnetic circuit consisting of a permanent magnet and a coil, a first vibration body driven by the magnetic circuit and also mechanically resonating at a frequency f0 and a second vibration body mechanically resonating at a frequency f1. Whether a rectangular wave signal being the frequency f0 outputted from rectangular wave generation circuits 1, 2 is applied as a first signal through a filter 3 or a second signal containing a signal being the frequency f1 produced by second signal generation circuits 1, 4 is applied to the vibration device 109 is selected by a switch means 5. |
