发明名称 EARPHONE WITHOUT IMPULSE NOISE AND SURROUNDINGS BLOCKADE
摘要 <p>The present invention is to provide an earphone without impulse noise and surroundings blockade consists of an earphone housing having a sound chamber (41) inside thereof and a loudspeaker (50) mounted therein, wherein a plurality of sound outlet meshes (42) is mounted in the front end of the earphone housing, and a proper distance is given between the front end of the earphone housing and the loudspeaker mounted therein, wherein a plurality of sound inlet meshes (43) is mounted on and encircling the earphone housing within the proper distance; and the lower impulse noise output end according to two output ends of the loudspeaker is faced to the sound outlet meshes; via the design. The present invention can prevent not only the impulse noise direclty impact to the middle ear but also the damage of the middle ear and the cause of conductive hearing loss.</p>
申请公布号 WO2001003470(A1) 申请公布日期 2001.01.11
申请号 US2000018397 申请日期 2000.07.03
申请人 发明人
分类号 主分类号
代理机构 代理人
主权项
地址