发明名称 |
Telephone mouthpiece for preventing wind noises and method for reducing wind noises input thereto |
摘要 |
The telephone mouthpiece of the present invention comprises a microphone unit 3, a unit housing section 1 and an acoustic duct section 2 tightly fitted to the unit housing section 1. The unit housing section 1 comprises a flat plate 11 and a cylindrical housing 12 housing the microphone unit 3 provided on the flat plate 11. The acoustic duct section 2 comprises: an acoustic duct box 21 in the form of a box in close contact with the corresponding flat plate 11; and a cylindrical box 22 in close contact with the cylindrical box 12 at an end of the acoustic duct box 21; partitions 23 and 24 for partitioning inside of the acoustic duct box 21 into a plurality of air chambers; and slits 29 and 30 provided on the partitions 23 and 24.
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申请公布号 |
US5701354(A) |
申请公布日期 |
1997.12.23 |
申请号 |
US19950541411 |
申请日期 |
1995.10.10 |
申请人 |
NEC CORPORATION |
发明人 |
KOMODA, MOTOYOSHI;MURATA, YUKIO |
分类号 |
H04M1/03;H04M1/19;H04R1/08;(IPC1-7):H04R25/00 |
主分类号 |
H04M1/03 |
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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