发明名称 |
Directional microphone for computer visual display monitor and method for construction |
摘要 |
A directional microphone intended for use in a computer visual display monitor, and methods for construction of same. The integral directional microphone assembly comprises a cardioid electret microphone capsule retained therein by acoustically transparent foam. The microphone housing is mounted internally within a display monitor housing facing the user and adjacent to the top surface of the monitor housing. The microphone housing comprises a frontal opening and a plurality of nonfrontally facing openings which together maximally preserve sound pressure gradient applied to the microphone capsule, resulting in a hypercardioid spatial response.
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申请公布号 |
US5627901(A) |
申请公布日期 |
1997.05.06 |
申请号 |
US19950378882 |
申请日期 |
1995.01.23 |
申请人 |
APPLE COMPUTER, INC. |
发明人 |
JOSEPHSON, DAVID L.;LUNDGREN, DAVID A.;OXFORD, WILLIAM V. |
分类号 |
G06F1/16;H04R1/22;H04R5/02;(IPC1-7):H04R1/02;H04R25/00 |
主分类号 |
G06F1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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