| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile telephone that is easier to use. <P>SOLUTION: A pair of cartilage-transmitting vibration parts supported by an elastic portion of a corner part of a mobile phone is driven in mutually reversed waveforms on the basis of a sound source signal from a sound source signal part. Outer surface of the elastic portion is chamfered to have a smooth convex. The pair of cartilage-transmitting vibration parts may also be driven in the same waveform. If an environmental noise is equal to or higher than a given level, only a part of the pair of cartilage-transmitting vibration parts, the part contacting with a cartilage of an ear, is vibrated. If the environmental noise is equal to or higher than the given level, the pair of cartilage-transmitting vibration parts is driven in mutually reversed waveforms. A balance can be adjusted when driving with the reverse waveforms. A piezoelectric bimorph element or an electromagnetic oscillator is used for the cartilage-transmitting vibration part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
