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1. 发明授权

US06885752B1 Hearing aid device incorporating signal processing techniques 失效
标题翻译：含有信号处理技术的助听器
公开(公告)号：US06885752B1
公开(公告)日：2005-04-26
申请号：US09444972
申请日：1999-11-22
申请人： Douglas Melvin Chabries , Richard Wesley Christiansen , Aaron Michael Hammond , William Charles Borough
发明人： Douglas Melvin Chabries , Richard Wesley Christiansen , Aaron Michael Hammond , William Charles Borough
IPC分类号： H03G9/02 , H04R25/00
CPC分类号： H04R25/356 , H03G9/005 , H03G9/025 , H04R2430/03
摘要： A hearing compensation system for the hearing impaired comprises a plurality of bandpass filters having an input connected to an input transducer and each bandpass filter having an output connected to the input of one of a plurality of multiplicative AGC circuits whose outputs are summed together and connected to the input of an output transducer. The multiplicative AGC circuits attenuate acoustic signals having a constant background level without the loss of speech intelligibility. The identification of the background noise portion of the acoustic signal is made by the constancy of the envelope of the input signal in each of the several frequency bands. The background noise that will be suppressed includes multi-talker speech babble, fan noise, feedback whistle, florescent light hum, and white noise.
摘要翻译：用于听力受损的听力补偿系统包括多个带通滤波器，其具有连接到输入换能器的输入端，并且每个带通滤波器具有连接到多个乘法AGC电路之一的输入的输出，其输出相加在一起并连接到输出传感器的输入。乘法AGC电路衰减具有恒定背景水平的声信号，而不会失去语音清晰度。声信号的背景噪声部分的识别是由多个频带中的每一个中的输入信号的包络的恒定性来确定的。将被抑制的背景噪声包括多讲话者语音混音，风扇噪音，反馈口哨，荧光灯嗡嗡声和白噪声。

2. 发明授权

US08085959B2 Hearing compensation system incorporating signal processing techniques 失效
标题翻译：听力补偿系统结合信号处理技术
公开(公告)号：US08085959B2
公开(公告)日：2011-12-27
申请号：US10937104
申请日：2004-09-08
申请人： Douglas Melvin Chabries , Richard Wesley Christiansen
发明人： Douglas Melvin Chabries , Richard Wesley Christiansen
IPC分类号： H04R25/00
CPC分类号： H03G9/025 , H03G9/005 , H04R25/356 , H04R2430/03
摘要： A hearing compensation system comprises a plurality of bandpass filters having an input connected to an input transducer and each bandpass filter having an output connected to the input of one of a plurality of multiplicative automatic gain control (MAGC) circuits whose outputs are summed together and connected to the input of an output transducer. The MAGC circuits attenuate acoustic signals having a constant background level without the loss of speech intelligibility. The identification of the background noise portion of the acoustic signal is made by the constancy of the envelope of the input signal in each of the several frequency bands. The background noise that will be suppressed includes multi-talker speech babble, fan noise, feedback whistle, florescent light hum, and white noise. For use in the consumer electronics field background acoustic noise may be sensed and used to adjust gain in the various MAGC circuits so as to improve a user's listening experience, whether the user is hearing impaired or not.
摘要翻译：听力补偿系统包括多个带通滤波器，其具有连接到输入换能器的输入端，并且每个带通滤波器具有连接到多个乘法自动增益控制（MAGC）电路之一的输入的输出，其输出相加在一起并连接到输出传感器的输入。 MAGC电路衰减具有恒定背景水平的声信号，而不会失去语音清晰度。声信号的背景噪声部分的识别是由多个频带中的每一个中的输入信号的包络的恒定性来确定的。将被抑制的背景噪声包括多讲话者语音混音，风扇噪音，反馈口哨，荧光灯嗡嗡声和白噪声。为了在消费电子领域使用，可以感测和使用背景噪声来调整各种MAGC电路中的增益，从而改善用户的听力体验，无论用户是否听力受损。

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