发明名称 UNIDIRECTIONAL EAR MICROPHONE WITH MULTIPLE OPENINGS
摘要 <p>An ear piece device (10) configured for being supported in the ear and providing a microphone (25) which is within a housing (11). A microphone element (28) is coupled within a casing (25). A support gasket (51) formed of acoustical absorbing materials is interposed around the microphone casing (25) and forms a bridge between the housing (11) and the microphone casing (25). A speaker element (13) may be included within the ear device (10) and can be decoupled acoustically so as to avoid feedback. This device (10) can operate with full duplex and enable hands free communication and direct voice command by user through computer modems, telephone networks and other communication systems.</p>
申请公布号 WO1994023520(A1) 申请公布日期 1994.10.13
申请号 US1994003574 申请日期 1994.04.01
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