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公开(公告)号：US20130077794A1
公开(公告)日：2013-03-28
申请号：US13247538
申请日：2011-09-28
IPC分类号： H03G11/00
CPC分类号： H03G11/008 , H04R3/007 , H04R2499/15
摘要： In an embodiment of the invention, the voice coil of an electro dynamic transducer is protected against thermal overload by estimating the temperature of a magnet in the electro dynamic transducer. When a power limit based on the temperature of the magnet and on a predetermined voice coil temperature limit is reached by an audio signal, the power applied to the voice coil is reduced.
摘要翻译： 在本发明的实施例中，通过估计电动变换器中的磁体的温度来保护电动换能器的音圈免受热过载。 当通过音频信号达到基于磁体的温度和预定音圈温度极限的功率限制时，施加到音圈的功率减小。
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公开(公告)号：US08774419B2
公开(公告)日：2014-07-08
申请号：US13247538
申请日：2011-09-28
CPC分类号： H03G11/008 , H04R3/007 , H04R2499/15
摘要： In an embodiment of the invention, the voice coil of an electro dynamic transducer is protected against thermal overload by estimating the temperature of a magnet in the electro dynamic transducer. When a power limit based on the temperature of the magnet and on a predetermined voice coil temperature limit is reached by an audio signal, the power applied to the voice coil is reduced.
摘要翻译： 在本发明的一个实施例中，通过估计电动变换器中的磁体的温度来保护电动换能器的音圈免受热过载。 当通过音频信号达到基于磁体的温度和预定音圈温度极限的功率限制时，施加到音圈的功率减小。
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公开(公告)号：US20130077796A1
公开(公告)日：2013-03-28
申请号：US13247569
申请日：2011-09-28
IPC分类号： H03G11/00
CPC分类号： H03G11/008 , H04R3/007
摘要： In an embodiment of the invention, the voice coil of an electro dynamic transducer is protected by measuring the power of the input audio signal. When a predetermined power limit is reached by the input audio signal, the power of the input audio signal is reduced.
摘要翻译： 在本发明的一个实施例中，通过测量输入音频信号的功率来保护电动换能器的音圈。 当通过输入音频信号达到预定功率限制时，输入音频信号的功率减小。
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公开(公告)号：US20130077795A1
公开(公告)日：2013-03-28
申请号：US13247554
申请日：2011-09-28
IPC分类号： H03G11/00
CPC分类号： H04R3/007 , H04R29/003
摘要： In an embodiment of the invention, over-excursion of a diaphragm in an electro dynamic transducer is reduced by attenuating low frequency content in an audio signal when the power of an audio signal exceeds a predetermined power limit. The audio signal is used to drive the input of an amplifier and the output of the amplifier drives the electro dynamic transducer. When the audio signal does not exceed a predetermined power limit, the low frequency content in the input audio signal is amplified.
摘要翻译： 在本发明的一个实施例中，当音频信号的功率超过预定的功率极限时，通过衰减音频信号中的低频内容来减小振动膜在电动变换器中的过度偏移。 音频信号用于驱动放大器的输入，放大器的输出驱动电动变换器。 当音频信号不超过预定功率限制时，输入音频信号中的低频内容被放大。
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