| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piezoelectric sounder used for a speaker and having extended reproduction band. <P>SOLUTION: The speaker includes a support 6A and vibrating reeds 1 to 5 supported by the support 6A and having sizes differ from each other, and sounds with a wide band can be reproduced by using the vibrating reeds 1 to 5 with sizes differ from each other and spurious radiation can be suppressed, and the acoustic vibration loss can be decreased. <P>COPYRIGHT: (C)2008,JPO&INPIT |
