| 发明名称 |
Masking noise generator |
| 摘要 |
There is disclosed a masking noise generator which includes a digital means such as a shift register for generating noise signals wherein the output of the shift register is fed via a filtering means to a transducer means such as a speaker for converting the noise signals to acoustic waves.
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| 申请公布号 |
US4054751(A) |
申请公布日期 |
1977.10.18 |
| 申请号 |
US19760662522 |
申请日期 |
1976.03.01 |
| 申请人 |
CDF INDUSTRIES, INC. |
发明人 |
CALDER, GEORGE DONALD;DUDA, JOHN;FATOVIC, JOHN |
| 分类号 |
G10K11/175;H04K1/02;H04R3/00;(IPC1-7):H04R3/00 |
主分类号 |
G10K11/175 |
| 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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