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发明名称
指向性スピーカ
摘要
<p>超音波域の搬送波に可聴音信号を重畳して圧電素子に入力することにより、圧電素子が設けられた振動板を振動させ音波を発生する指向性スピーカにおいて、振動板が、振動板の外周に設けられた複数の梁を介して固定部に固定されている。</p>
申请公布号
JPWO2013042316(A1)
申请公布日期
2015.03.26
申请号
JP20130506366
申请日期
2012.08.28
申请人
发明人
分类号
H04R17/00;H04R3/00;H04R7/20
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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