专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08948424B2 Hearing device and method for operating a hearing device with two-stage transformation 有权
标题翻译：用于操作具有两级变换的听力装置的听力装置和方法
公开(公告)号：US08948424B2
公开(公告)日：2015-02-03
申请号：US13180642
申请日：2011-07-12
申请人： Timo Gerkmann , Rainer Martin , Henning Puder , Wolfgang Soergel
发明人： Timo Gerkmann , Rainer Martin , Henning Puder , Wolfgang Soergel
IPC分类号： H04R25/00
CPC分类号： H04R25/505 , H04R2430/03
摘要： A filter bank with a sufficiently high resolution for amplification and noise reduction and with the lowest possible computational complexity is provided for a hearing device and, in particular, for a hearing aid. Two-stage frequency transformation with little latency is therefore proposed for hearing aids. Some of the processing, for example the amplification, is carried out after high stopband attenuation in the first stage. An increased frequency resolution is achieved in a second stage before the back-transformation in the first stage, which is favorable for noise reduction, for example.
摘要翻译：提供了一种具有足够高分辨率用于放大和降噪并且具有最低可能的计算复杂度的滤波器组，用于听力设备，特别是用于助听器。因此，为助听器提出了具有很小延迟的两级频率变换。一些处理，例如放大，是在第一阶段的高阻带衰减之后进行的。例如，在第一阶段的反向变换之前的第二阶段中实现增加的频率分辨率，这有利于噪声降低。

2. 发明申请

US20120008791A1 HEARING DEVICE AND METHOD FOR OPERATING A HEARING DEVICE WITH TWO-STAGE TRANSFORMATION 有权
标题翻译：用于操作具有两级转换的听觉设备的听觉设备和方法
公开(公告)号：US20120008791A1
公开(公告)日：2012-01-12
申请号：US13180642
申请日：2011-07-12
申请人： Timo Gerkmann , Rainer Martin , Henning Puder , Wolfgang Sorgel
发明人： Timo Gerkmann , Rainer Martin , Henning Puder , Wolfgang Sorgel
IPC分类号： H04R25/00
CPC分类号： H04R25/505 , H04R2430/03
摘要： A filter bank with a sufficiently high resolution for amplification and noise reduction and with the lowest possible computational complexity is provided for a hearing device and, in particular, for a hearing aid. Two-stage frequency transformation with little latency is therefore proposed for hearing aids. Some of the processing, for example the amplification, is carried out after high stopband attenuation in the first stage. An increased frequency resolution is achieved in a second stage before the back-transformation in the first stage, which is favorable for noise reduction, for example.
摘要翻译：提供了一种具有足够高分辨率用于放大和降噪并且具有最低可能的计算复杂度的滤波器组，用于听力设备，特别是用于助听器。因此，为助听器提出了具有很小延迟的两级频率变换。一些处理，例如放大，是在第一阶段的高阻带衰减之后进行的。例如，在第一阶段的反向变换之前的第二阶段中实现增加的频率分辨率，这有利于噪声降低。

3. 发明授权

US08208666B2 Method for determining unbiased signal amplitude estimates after cepstral variance modification 失效
标题翻译：倒谱方差修正后确定无偏信号幅度估计的方法
公开(公告)号：US08208666B2
公开(公告)日：2012-06-26
申请号：US12684147
申请日：2010-01-08
申请人： Timo Gerkmann , Rainer Martin
发明人： Timo Gerkmann , Rainer Martin
IPC分类号： H04R25/00
CPC分类号： G10L21/0208 , G10L25/24
摘要： A method for determining unbiased signal amplitude estimates () after cepstral variance modification of a discrete time domain signal (s(t)), wherein the cepstrally-modified spectral amplitudes () of the discrete time domain signal (s(t)) are χ-distributed with 2{tilde over (μ)} degrees of freedom. A bias reduction factor (r) is determined using the equation r 2 = μ μ ~ ⁢ ⅇ ψ ⁡ ( μ ~ ) - ψ ⁡ ( μ ) , where 2μ are the degrees of freedom of the χ-distributed spectral amplitudes of the discrete time domain signal (s(t)) and ψ ⁡ ( x ) = - 0.5772 - ∑ n = 0 ∞ ⁢ ( 1 x + n - 1 1 + n ) ; then the unbiased signal amplitude estimates () are determined by multiplying the cepstrally-modified spectral amplitudes () with the bias reduction factor (r) according to the equation =r. A method for speech enhancement and a hearing aid use the method for determining unbiased signal amplitude estimates () in order to offer the advantage of spectral modification, such as smoothing, of spectral quantities without affecting their signal power.
摘要翻译：一种用于确定离散时域信号（s（t））的倒谱方差修正后的无偏信号幅度估计（）的方法，其中离散时域信号（s（t））的经频谱修正的频谱幅度（χ）为χ 分布为2（波形）超过（μ）}自由度。使用等式r 2 =μμ〜ψψ（μ〜）-ψ⁡（μ）确定偏置约简因子（r），其中2μ是离散时间的χ分布频谱幅度的自由度域信号（s（t））和ψ⁡（x）= - 0.5772 - Σn = 0∞（1 x + n - 1 1 + n）那么无偏信号幅度估计（）通过将倒频修正的频谱幅度（）与偏置简化因子（r）相乘来确定，方程式= r。用于语音增强和助听器的方法使用用于确定无偏信号幅度估计（）的方法，以便提供频谱修改的优点，例如频谱量化的平滑，而不影响其信号功率。

4. 发明授权

US08271271B2 Method for bias compensation for cepstro-temporal smoothing of spectral filter gains 失效
标题翻译：用于频谱滤波器增益的频谱平滑的偏置补偿方法
公开(公告)号：US08271271B2
公开(公告)日：2012-09-18
申请号：US12504887
申请日：2009-07-17
申请人： Colin Breithaupt , Timo Gerkmann , Rainer Martin
发明人： Colin Breithaupt , Timo Gerkmann , Rainer Martin
IPC分类号： G10L11/04
CPC分类号： H04R25/505 , G10L21/0208 , H04R2225/43
摘要： A method for modification of a cepstro-temporally smoothed gain function of a gain function resulting in a bias compensated spectral gain function is provided. The cepstro-temporal smoothing increases the quality of an enhanced output signal, as it affects only spectral outliers caused by estimation errors, while the speech characteristics are well preserved. However, due to the cepstral transform, the temporal smoothing is done in the logarithmic domain rather than the linear domain, and hence results in a certain bias. Thus, the method for a general bias compensation for a cepstro-temporal smoothing of spectral filter gain functions that is only dependent on the lower limit of the spectral filter-gain function.
摘要翻译：提供了一种用于修改产生偏置补偿光谱增益功能的增益函数的后台平滑增益函数的方法。尖端时间平滑增加了增强的输出信号的质量，因为它仅影响由估计误差引起的频谱异常值，同时语音特征被良好地保留。然而，由于倒谱变换，在对数域而不是线性域中进行时间平滑，因此导致一定的偏差。因此，用于频谱滤波器增益函数的频谱平滑的通用偏置补偿的方法仅取决于频谱滤波器增益函数的下限。

5. 发明申请

US20100182510A1 SPECTRAL SMOOTHING METHOD FOR NOISY SIGNALS 有权
标题翻译：用于噪声信号的光谱平滑方法
公开(公告)号：US20100182510A1
公开(公告)日：2010-07-22
申请号：US12665526
申请日：2008-06-25
申请人： Timo Gerkmann , Colin Breithaupt , Rainer Martin
发明人： Timo Gerkmann , Colin Breithaupt , Rainer Martin
IPC分类号： H04N5/00 , G10L19/02 , G06K9/40
CPC分类号： G10L21/0208 , G10L25/24 , G10L25/27
摘要： A smoothing method for suppressing fluctuating artifacts in the reduction of interference noise includes the following steps: providing short-term spectra for a sequence of signal frames, transforming each short-term spectrum by way of a forward transformation which describes the short-term spectrum using transformation coefficients that represent the short-term spectrum subdivided into its coarse and fine structures; smoothing the transformation coefficients with the respective same coefficient indices by combining at least two successive transformed short-term spectra; and transforming the smoothed transformation coefficients into smoothed short-term spectra by way of a backward transformation.
摘要翻译：用于抑制干扰噪声减少中的波动伪影的平滑方法包括以下步骤：提供信号帧序列的短期频谱，通过使用描述短期频谱的正向变换来变换每个短期频谱，使用代表短期光谱的变换系数分为粗略和精细结构; 通过组合至少两个连续变换的短期光谱来平滑具有各自相同系数指数的变换系数; 并通过反向变换将平滑的变换系数变换成平滑的短期光谱。

6. 发明授权

US08892431B2 Smoothing method for suppressing fluctuating artifacts during noise reduction 有权
标题翻译：降噪过程中抑制波动瑕疵的平滑方法
公开(公告)号：US08892431B2
公开(公告)日：2014-11-18
申请号：US12665526
申请日：2008-06-25
申请人： Timo Gerkmann , Colin Breithaupt , Rainer Martin
发明人： Timo Gerkmann , Colin Breithaupt , Rainer Martin
IPC分类号： G10L21/00 , G10L25/27
CPC分类号： G10L21/0208 , G10L25/24 , G10L25/27
摘要： A smoothing method for suppressing fluctuating artifacts in the reduction of interference noise includes the following steps: providing short-term spectra for a sequence of signal frames, transforming each short-term spectrum by way of a forward transformation which describes the short-term spectrum using transformation coefficients that represent the short-term spectrum subdivided into its coarse and fine structures; smoothing the transformation coefficients with the respective same coefficient indices by combining at least two successive transformed short-term spectra; and transforming the smoothed transformation coefficients into smoothed short-term spectra by way of a backward transformation.
摘要翻译：用于抑制干扰噪声减少中的波动伪影的平滑方法包括以下步骤：提供信号帧序列的短期频谱，通过使用描述短期频谱的正向变换来变换每个短期频谱，使用代表短期光谱的变换系数分为粗略和精细结构; 通过组合至少两个连续变换的短期光谱来平滑具有各自相同系数指数的变换系数; 并通过反向变换将平滑的变换系数变换成平滑的短期光谱。

7. 发明申请

US20090257609A1 Method for Noise Reduction and Associated Hearing Device 审中-公开
标题翻译：降噪及相关听力装置的方法
公开(公告)号：US20090257609A1
公开(公告)日：2009-10-15
申请号：US12489910
申请日：2009-06-23
申请人： Timo Gerkmann , Rainer Martin
发明人： Timo Gerkmann , Rainer Martin
IPC分类号： H04R25/00
CPC分类号： H04R25/00 , G10L21/0232
摘要： The invention specifies a method for noise reduction of an input signal of a hearing device. The cepstrum coefficients of the input signal, of the changed input signal and/or of at least one parameter obtained from the input signal are modified. The modified cepstral coefficients are used for formation of an output signal from the input signal. The output signal has reduced noise in relation to the input signal. With instationary noises in particular, an estimation is improved and an improved auditive quality is achieved for the hearing device.
摘要翻译：本发明规定了用于降低听力装置的输入信号的方法。输入信号的倒谱系数，改变的输入信号和/或从输入信号获得的至少一个参数的改变。改进的倒谱系数用于从输入信号形成输出信号。输出信号相对于输入信号具有降低的噪声。特别是发生噪声，提高了听觉设备的估计，提高了听觉质量。

8. 发明申请

US20100177916A1 Method for Determining Unbiased Signal Amplitude Estimates After Cepstral Variance Modification 失效
标题翻译：确定倒谱方差修正后无偏信号幅度估计的方法
公开(公告)号：US20100177916A1
公开(公告)日：2010-07-15
申请号：US12684147
申请日：2010-01-08
申请人： Timo Gerkmann , Rainer Martin
发明人： Timo Gerkmann , Rainer Martin
IPC分类号： G10L21/02 , H04R25/00
CPC分类号： G10L21/0208 , G10L25/24
摘要： A method for determining unbiased signal amplitude estimates () after cepstral variance modification of a discrete time domain signal (s(t)), wherein the cepstrally-modified spectral amplitudes () of the discrete time domain signal (s(t)) are X-distributed with 2{tilde over (μ)} degrees of freedom. A bias reduction factor (r) is determined using the equation r 2 = μ μ ~   ψ  ( μ ~ ) - ψ  ( μ ) , where 2μ are the degrees of freedom of the X-distributed spectral amplitudes of the discrete time domain signal (s(t)) and ψ  ( x ) = - 0.5772 - ∑ n = 0 ∞  ( 1 x + n - 1 1 + n ) ; then the unbiased signal amplitude estimates () are determined by multiplying the cepstrally-modified spectral amplitudes () with the bias reduction factor (r) according to the equation =. A method for speech enhancement and a hearing aid use the method for determining unbiased signal amplitude estimates () in order to offer the advantage of spectral modification, such as smoothing, of spectral quantities without affecting their signal power.
摘要翻译：一种用于确定离散时域信号（s（t））的倒谱方差修正之后的无偏信号幅度估计（）的方法，其中离散时域信号（s（t））的经频谱修正的频谱幅度（X）为X 分布为2（波形）超过（μ）}自由度。使用等式r 2 =μμ〜ψ（μ〜）ψ（μ）确定偏置约简因子（r），其中2μ是离散时间的X分布频谱幅度的自由度域信号（s（t））和ψ（x）= - 0.5772 - Σn = 0∞（1 x + n - 1 1 + n）; 那么无偏信号幅度估计（）通过将倒频修正的频谱幅度（）与偏置约简因子（r）相乘来确定。用于语音增强和助听器的方法使用用于确定无偏信号幅度估计（）的方法，以便提供频谱修改的优点，例如频谱量化的平滑，而不影响其信号功率。

9. 发明申请

US20100014695A1 METHOD FOR BIAS COMPENSATION FOR CEPSTRO-TEMPORAL SMOOTHING OF SPECTRAL FILTER GAINS 失效
标题翻译：光谱滤波器的CEPSTRO-TEMPORAL SMOOTHING的偏置补偿方法
公开(公告)号：US20100014695A1
公开(公告)日：2010-01-21
申请号：US12504887
申请日：2009-07-17
申请人： Colin Breithaupt , Timo Gerkmann , Rainer Martin
发明人： Colin Breithaupt , Timo Gerkmann , Rainer Martin
IPC分类号： H04R25/00 , G10L19/14
CPC分类号： H04R25/505 , G10L21/0208 , H04R2225/43
摘要： A method for modification of a cepstro-temporally smoothed gain function of a gain function resulting in a bias compensated spectral gain function is provided. The cepstro-temporal smoothing increases the quality of an enhanced output signal, as it affects only spectral outliers caused by estimation errors, while the speech characteristics are well preserved. However, due to the cepstral transform, the temporal smoothing is done in the logarithmic domain rather than the linear domain, and hence results in a certain bias. Thus, the method for a general bias compensation for a cepstro-temporal smoothing of spectral filter gain functions that is only dependent on the lower limit of the spectral filter-gain function.
摘要翻译：提供了一种用于修改产生偏置补偿光谱增益功能的增益函数的后台平滑增益函数的方法。尖端时间平滑增加了增强的输出信号的质量，因为它仅影响由估计误差引起的频谱异常值，同时语音特征被良好地保留。然而，由于倒谱变换，在对数域而不是线性域中进行时间平滑，因此导致一定的偏差。因此，用于频谱滤波器增益函数的频谱平滑的通用偏置补偿的方法仅取决于频谱滤波器增益函数的下限。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式