发明名称 |
SYSTEM FOR LIMITING LOUDSPEAKER DISPLACEMENT |
摘要 |
<p>Loudspeakers can be damaged by high drive signals. One reason for this damage is an excess vibration displacement of the coil-diaphragm assembly. This invention describes a novel method for limiting this displacement by a signal processor. In the present invention, a low frequency shelving and notch filter is used to attenuate low frequencies according to a prediction of the loudspeaker displacement. A novel method for calculating coefficient values for a digital implementation of the low frequency shelving and notch filter according to the predicted displacement is described.</p> |
申请公布号 |
WO2005091672(A1) |
申请公布日期 |
2005.09.29 |
申请号 |
WO2005IB00605 |
申请日期 |
2005.03.10 |
申请人 |
NOKIA CORPORATION;NOKIA INC.;BRIGHT, ANDREW |
发明人 |
BRIGHT, ANDREW |
分类号 |
H04R3/00;H04R3/04;H04R29/00;(IPC1-7):H04R3/04 |
主分类号 |
H04R3/00 |
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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