发明名称 |
Method and detector of loudspeaker diaphragm excursion |
摘要 |
The present invention relates in one aspect to a method of detecting diaphragm excursion of an electrodynamic loudspeaker. The method comprises steps of generating an audio signal for application to a voice coil of the electrodynamic loudspeaker and adding a high-frequency probe signal to the audio signal to generate a composite drive signal. The method further comprises a step of applying the composite drive signal to the voice coil through an output amplifier and detecting a modulation level of a probe signal current flowing through the voice coil. |
申请公布号 |
EP2773132(A1) |
申请公布日期 |
2014.09.03 |
申请号 |
EP20140156524 |
申请日期 |
2014.02.25 |
申请人 |
ANALOG DEVICES A/S |
发明人 |
ADAMS, ROBERT;BERTHELSEN, KIM SPETZLER |
分类号 |
H04R3/00;H04R29/00 |
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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