| 发明名称 |
Apparatus for selective noise suppression for hearing aids |
| 摘要 |
Noise suppression apparatus is interposed between the transducer and the amplifier of a hearing aid, allowing the user to adjust the operation of an automatic level control circuit to provide suppression of background sounds with negligible effect on audibility of close-in sounds.
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| 申请公布号 |
US4405831(A) |
申请公布日期 |
1983.09.20 |
| 申请号 |
US19800219342 |
申请日期 |
1980.12.22 |
| 申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
MICHELSON, ROBIN P. |
| 分类号 |
H03G3/20;H04R25/00;(IPC1-7):H04B15/00 |
主分类号 |
H03G3/20 |
| 代理机构 |
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代理人 |
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| 地址 |
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