发明名称 Directional microphone
摘要 A directional microphone is proposed which exhibits a closed housing with a multiplicity of acoustic openings and a microphone device, which is encapsulated in the housing and has linear pressure gradients. The acoustic openings are provided in the front face of the housing, a main acoustic axis which is arranged perpendicular to a diaphragm of the microphone device being located essentially parallel to the front face of the housing. Between the outer surface of the microphone device and the inner surface of the housing, an acoustic baffle is provided which divides the interior of the microphone device into a first and a second space. <IMAGE>
申请公布号 DE3907895(A1) 申请公布日期 1989.11.02
申请号 DE19893907895 申请日期 1989.03.09
申请人 PRIMO CO. LTD., MITAKA, TOKIO/TOKYO, JP 发明人 MORI, SHIGEO, MITAKA, TOKIO/TOKYO, JP
分类号 H04M1/03;H04M1/19;H04R1/08;H04R1/34;H04R1/38 主分类号 H04M1/03
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