| 发明名称 |
Noise cancellation system and headphone therefor |
| 摘要 |
A noise cancellation system includes a headphone having a sound transducer and a headphone speaker. Noise cancellation circuitry is provided remote from the headphone and supplies the headphone speaker and is supplied from the sound transducer. A filter normalizes the output from the sound transducer of the headphone to the noise cancellation circuitry.
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| 申请公布号 |
US2005213773(A1) |
申请公布日期 |
2005.09.29 |
| 申请号 |
US20040520036 |
申请日期 |
2004.12.28 |
| 申请人 |
DONALDSON MARK;FULLER GRAEME C |
发明人 |
DONALDSON MARK;FULLER GRAEME C. |
| 分类号 |
H04R1/10;G10K11/178;H04R3/00;H04R5/033;H04R19/01;(IPC1-7):A61F11/06;G10K11/16;H03B29/00 |
主分类号 |
H04R1/10 |
| 代理机构 |
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