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1. 发明授权

US07433481B2 Digital hearing aid system 有权
标题翻译：数字助听器系统
公开(公告)号：US07433481B2
公开(公告)日：2008-10-07
申请号：US11150896
申请日：2005-06-13
申请人： Stephen W. Armstrong , Frederick E. Sykes , David R. Brown , James G. Ryan
发明人： Stephen W. Armstrong , Frederick E. Sykes , David R. Brown , James G. Ryan
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , H04R25/356 , H04R25/453 , H04R25/505 , H04R2225/43 , H04R2460/05
摘要： A digital hearing aid is provided that includes front and rear microphones, a sound processor, and a speaker. Embodiments of the digital hearing aid include an occlusion subsystem, and a directional processor and headroom expander. The front microphone receives a front microphone acoustical signal and generates a front microphone analog signal. The rear microphone receives a rear microphone acoustical signal and generates a rear microphone analog signal. The front and rear microphone analog signals are converted into the digital domain, and at least the front microphone signal is coupled to the sound processor. The sound processor selectively modifies the signal characteristics and generates a processed signal. The processed signal is coupled to the speaker which converts the signal to an acoustical hearing aid output signal that is directed into the ear canal of the digital hearing aid user. The occlusion sub-system compensates for the amplification of the digital hearing aid user's own voice within the ear canal. The directional processor and headroom expander optimizes the gain applied to the acoustical signals received by the digital hearing aid and combine the amplified signals into a directionally-sensitive response.
摘要翻译：提供了一种数字助听器，包括前置和后置麦克风，声音处理器和扬声器。数字助听器的实施例包括遮挡子系统以及定向处理器和净空扩展器。前麦克风接收前麦克风声信号并产生前麦克风模拟信号。后麦克风接收后麦克风声音信号并产生后麦克风模拟信号。前和后麦克风模拟信号被转换成数字域，并且至少前麦克风信号耦合到声音处理器。声音处理器选择性地修改信号特性并产生处理的信号。经处理的信号耦合到扬声器，扬声器将该信号转换成被引导到数字助听器用户的耳道中的声学助听器输出信号。闭塞子系统补偿耳道内数字助听器用户自己的声音的放大。定向处理器和净空扩展器优化了应用于由数字助听器接收的声学信号的增益，并将放大的信号组合成方向敏感的响应。

2. 发明申请

US20050232452A1 Digital hearing aid system 有权
标题翻译：数字助听器系统
公开(公告)号：US20050232452A1
公开(公告)日：2005-10-20
申请号：US11150896
申请日：2005-06-13
申请人： Stephen W. Armstrong , Frederick E. Sykes , David R. Brown , James G. Ryan
发明人： Stephen W. Armstrong , Frederick E. Sykes , David R. Brown , James G. Ryan
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , H04R25/356 , H04R25/453 , H04R25/505 , H04R2225/43 , H04R2460/05
摘要： A digital hearing aid is provided that includes front and rear microphones, a sound processor, and a speaker. Embodiments of the digital hearing aid include an occlusion subsystem, and a directional processor and headroom expander. The front microphone receives a front microphone acoustical signal and generates a front microphone analog signal. The rear microphone receives a rear microphone acoustical signal and generates a rear microphone analog signal. The front and rear microphone analog signals are converted into the digital domain, and at least the front microphone signal is coupled to the sound processor. The sound processor selectively modifies the signal characteristics and generates a processed signal. The processed signal is coupled to the speaker which converts the signal to an acoustical hearing aid output signal that is directed into the ear canal of the digital hearing aid user. The occlusion sub-system compensates for the amplification of the digital hearing aid user's own voice within the ear canal. The directional processor and headroom expander optimizes the gain applied to the acoustical signals received by the digital hearing aid and combine the amplified signals into a directionally-sensitive response.
摘要翻译：提供了一种数字助听器，包括前置和后置麦克风，声音处理器和扬声器。数字助听器的实施例包括遮挡子系统以及定向处理器和净空扩展器。前麦克风接收前麦克风声信号并产生前麦克风模拟信号。后麦克风接收后麦克风声音信号并产生后麦克风模拟信号。前和后麦克风模拟信号被转换成数字域，并且至少前麦克风信号耦合到声音处理器。声音处理器选择性地修改信号特性并产生处理的信号。经处理的信号耦合到扬声器，扬声器将该信号转换成被引导到数字助听器用户的耳道中的声学助听器输出信号。闭塞子系统补偿耳道内数字助听器用户自己的声音的放大。定向处理器和净空扩展器优化了应用于由数字助听器接收的声学信号的增益，并将放大的信号组合成方向敏感的响应。

3. 发明授权

US06937738B2 Digital hearing aid system 有权
公开(公告)号：US06937738B2
公开(公告)日：2005-08-30
申请号：US10121221
申请日：2002-04-12
申请人： Stephen W. Armstrong , Frederick E. Sykes , David R. Brown , James G. Ryan
发明人： Stephen W. Armstrong , Frederick E. Sykes , David R. Brown , James G. Ryan
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , H04R25/356 , H04R25/453 , H04R25/505 , H04R2225/43 , H04R2460/05
摘要： A digital hearing aid is provided that includes front and rear microphones, a sound processor, and a speaker. Embodiments of the digital hearing aid include an occlusion subsystem, and a directional processor and headroom expander. The front microphone receives a front microphone acoustical signal and generates a front microphone analog signal. The rear microphone receives a rear microphone acoustical signal and generates a rear microphone analog signal. The front and rear microphone analog signals are converted into the digital domain, and at least the front microphone signal is coupled to the sound processor. The sound processor selectively modifies the signal characteristics and generates a processed signal. The processed signal is coupled to the speaker which converts the signal to an acoustical hearing aid output signal that is directed into the ear canal of the digital hearing aid user. The occlusion sub-system compensates for the amplification of the digital hearing aid user's own voice within the ear canal. The directional processor and headroom expander optimizes the gain applied to the acoustical signals received by the digital hearing aid and combine the amplified signals into a directionally-sensitive response.

4. 发明授权

US5832097A Multi-channel synchronous companding system 失效
标题翻译：多通道同步压扩系统
公开(公告)号：US5832097A
公开(公告)日：1998-11-03
申请号：US530049
申请日：1995-09-19
申请人： Stephen W. Armstrong , Frederick E. Sykes , Ronald J. D. Csermak
发明人： Stephen W. Armstrong , Frederick E. Sykes , Ronald J. D. Csermak
IPC分类号： H04R25/00
CPC分类号： H04R25/356 , H04R25/502
摘要： A multi-channel synchronous compander for hearing aids, in which the input signal from an input transducer is directed through a 2:1 front compressor, then through a band splitting filter to divide it into a desired number of frequency bands, then through expander/compressors to provide selected expansion/compression of each frequency band depending on the user's hearing impairment. The outputs of the expander/compressors are summed, amplified and directed to the hearing aid output transducer. The compressor and each expander/compressor are all controlled by control signals derived from the compressed signal level at the output of the front compressor. The use of common control signals for both the front end compression and the expansion removes the need for close matching of temporal performance and improves the output signal fidelity. The front compressor allows the filter capacitors to be reduced in size so that they can be integrated. Sounds above a high level threshold do not change the gain applied to input signal, even when changes are made in the expansion/compression ratios of the expander/compressors.
摘要翻译：用于助听器的多通道同步压缩扩展器，其中来自输入换能器的输入信号通过2:1前置压缩器，然后通过频带分离滤波器将其分成期望数量的频带，然后通过扩展器/ 压缩机根据用户的听力损伤提供每个频段的选择的扩展/压缩。扩张器/压缩机的输出被相加，放大并定向到助听器输出换能器。压缩机和每个膨胀机/压缩机都由前压缩机输出端的压缩信号电平得到的控制信号控制。使用公共控制信号进行前端压缩和扩展消除了对时间性能的紧密匹配的需要，并提高了输出信号的保真度。前压缩机允许滤波电容器的尺寸减小，以便它们可以集成。即使在膨胀机/压缩机的膨胀/压缩比发生变化时，超过高电平阈值的声音也不会改变施加到输入信号的增益。

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