发明名称 ELECTRONIC APPARATUS AND ELECTRO-ACOUSTIC TRANSDUCER
摘要 <P>PROBLEM TO BE SOLVED: To provide an electronic apparatus which reduces the degradation of a sound pressure level of an electro-acoustic transducer even with a structure where a sound hole is formed on a side surface of a body housing. <P>SOLUTION: In a portable telephone 100, an acoustic reflection part 120 is disposed in a body housing 110 in which a sound hole 112 is formed on a side surface 111 and an oscillation device 210 is disposed therein, and the acoustic reflection part 120 inclines relative to both a piezoelectric element 211 and the sound hole 112 and faces the both. Thus, sound waves output by the oscillation device 210 are reflected by the acoustic reflection part 120 and output from the sound hole 112, and the degradation of a sound pressure level is reduced. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012100049(A) 申请公布日期 2012.05.24
申请号 JP20100245674 申请日期 2010.11.01
申请人 NEC CASIO MOBILE COMMUNICATIONS LTD 发明人 ONISHI YASUHARU;KISHINAMI YUICHIRO;SATO SHIGEO;KURODA ATSUSHI;MURATA YUKIO;KOMODA MOTOYOSHI;KAWASHIMA NOBUHIRO;UCHIKAWA TATSUYA
分类号 H04R1/34;H04M1/03;H04R17/00 主分类号 H04R1/34
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