发明名称 Communications devices with receiver earpieces and methods therefor
摘要 A communications receiver earpiece, for example in a cellular handset, including a sound-generating device (210) located on an inner portion of a housing, a sound port (130) extending through the housing from the inner portion thereof and emerging from an outer portion of the housing. A sound-port cover (140) is disposed over the sound port (130) on the outer portion of the housing. A portion 144 of the sound-port cover extending outwardly of the sound port where the sound port emerges from the out portion of the housing.
申请公布号 US2004001589(A1) 申请公布日期 2004.01.01
申请号 US20020184278 申请日期 2002.06.27
申请人 MUELLER KARL F.;YEAGER DAVID M. 发明人 MUELLER KARL F.;YEAGER DAVID M.
分类号 H04M1/03;H04R1/10;(IPC1-7):H04M1/00;H04M9/00 主分类号 H04M1/03
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