发明名称 |
IMPROVED AUDIO REPRODUCTION SYSTEM |
摘要 |
An improved audio system designed to maintain a desired sound at the ear of a listener by using an equalization filter (2). The equalization filter (2) is continuously adjusted in response to the signal (9) from a sensor (8) which monitors the sound close to the listener's ear. The audio system can be combined with an active noise control system (3) to reduce interference from external noise. |
申请公布号 |
WO9423419(A1) |
申请公布日期 |
1994.10.13 |
申请号 |
WO1994US03358 |
申请日期 |
1994.04.01 |
申请人 |
NOISE CANCELLATION TECHNOLOGIES, INC. |
发明人 |
EATWELL, GRAHAM, P.;LANGLEY, ANDREW |
分类号 |
G10K11/178;H04S7/00;(IPC1-7):G10K11/16 |
主分类号 |
G10K11/178 |
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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