发明名称 An electroacoustic transducer
摘要 An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween, the magnetic circuit comprising a magnet inducing a magnetic field in the gap, the magnet having a surface constituting one of the opposed surfaces. The magnetic circuit further comprises a diaphragm and a coil having electrically conducting paths secured to the diaphragm. The coil has portions of its paths situated in the gap. <IMAGE>
申请公布号 EP1439731(A1) 申请公布日期 2004.07.21
申请号 EP20040075735 申请日期 2002.01.25
申请人 SONIONKIRK A/S 发明人 JOHANNSEN, LEIF;HANSEN, KAJ BORGE
分类号 H01F7/06;H01F27/30;H01F41/06;H01F41/10;H04R7/04;H04R7/12;H04R9/02;H04R9/04;H04R9/06;H04R9/08 主分类号 H01F7/06
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