发明名称 Compound sound generator
摘要 A case of the information equipment is provided for setting various parts in. A speaker and receiver are provided in the frame. A first back chamber is formed in the speaker and a second back chamber is formed in the receiver. A baffle is formed on a part of the frame for dividing the inner space of the case so as to separate the first and second back chambers from each other.
申请公布号 US7142686(B2) 申请公布日期 2006.11.28
申请号 US20030677358 申请日期 2003.10.03
申请人 CITIZEN ELECTRONICS CO., LTD. 发明人 FURUYA MASAHITO;KUWABARA HIRONORI
分类号 H04M1/60;H04R25/00;H04M1/03;H04R7/16;H04R9/02;H04R9/06;H04R9/10 主分类号 H04M1/60
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