发明授权
- 专利标题： Loudspeaker and acoustic transformer therefor
- 专利标题（中）： 扬声器和声变换器
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申请号： US834311申请日： 1986-02-27
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公开(公告)号： US4718517A公开(公告)日： 1988-01-12
- 发明人: David E. Carlson
- 申请人： David E. Carlson
- 申请人地址： MI Buchanan
- 专利权人： Electro-Voice, Inc.
- 当前专利权人： Electro-Voice, Inc.
- 当前专利权人地址： MI Buchanan
- 主分类号： H04R1/30
- IPC分类号： H04R1/30 ; H04R1/34 ; G10K13/00 ; H04R7/00
摘要：
A speaker system including a frusto-conical diaphragm, and a phase plug mounted within the volume formed by the diaphragm, the phase plug including a pair of substantially diametric open slots extending across the diaphragm and through the phase plug, with each of the slots having substantially rectangular cross sections transverse to the axis of the diaphragm.
公开/授权文献
- US5869864A Field effect controlled semiconductor component 公开/授权日：1999-02-09