发明名称 MICROPHONE WITH CONCEALED PORT
摘要 <p>Briefly, according to the invention, a microphone apparatus (100) for converting sound waves to electrical signals is described. The microphone apparatus (100) includes a switch (118) for initiating the occurrence of an event. The switch (118) being substantially covered by a cap (102). The microphone apparatus (100) also includes a microphone port (114) disposed substantially behind the cap (102), thus minimizing the obstruction of the microphone port (114).</p>
申请公布号 WO1993001690(A1) 申请公布日期 1993.01.21
申请号 US1992005579 申请日期 1992.07.02
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