| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a configuration enabling a mobile phone terminal to perform voice strength power generation and to prevent trouble during a call. <P>SOLUTION: Between a piezoelectric converter 40 and a voice processing section 27 constituting a microphone 9 of a mobile phone terminal, an interlocked switch 45 is provided which turns on or off a state of conducting them. Operation of the interlocked switch 45 is interlocked to operation of a user and when the state of conducting the piezoelectric converter 40 and the voice processing section 27 is turned off, a state of conducting the piezoelectric converter 40 and a power source section 20 is turned on. When the state of conducting the piezoelectric converter 40 and the power source section 20 is turned off, the state of conducting the piezoelectric converter 40 and the voice processing section 27 is turned on. Thus, in response to the user operation, an output destination of the piezoelectric converter 40 is switched either to the voice processing section 27 or to the power source section 20. Thus, such a state that voice strength charging is prevented from being performed simultaneously with speaking and any one of voice strength power generation and speaking can be performed is maintained. <P>COPYRIGHT: (C)2013,JPO&INPIT |
