发明名称 Acoustic transducers with improved frequency response
摘要 An acoustic transducer has two partially annular resonators arranged in an ante-chamber of a transducer plate, the resonators being formed by annular channels which are provided in an upper housing component which are sealed from the exterior by a covering plate. The channels are linked to the ante-chamber of the transducer plate through openings.
申请公布号 US4860368(A) 申请公布日期 1989.08.22
申请号 US19870087324 申请日期 1987.08.20
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 PAYER, ERNST;SCHIERL, HANS
分类号 H04M1/03;H04R1/22;H04R1/28;H04R17/00 主分类号 H04M1/03
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