公开(公告)号：US20190246220A1

公开(公告)日：2019-08-08

申请号：US16327823

申请日：2017-07-14

申请人： Chen CHEN ,  Dean SWAN ,  Leonid M. LITVAK ,  ADVANCED BIONICS AG

发明人： Chen Chen ,  Leonid M. Litvak ,  Dean Swan

IPC分类号： H04R25/00

摘要： A binaural hearing system (“system”) enhances and/or preserves interaural level differences between first and second signals. The system includes first and second audio detectors associated with first and second ears of a user, respectively. The audio detectors detect an audio signal presented to the user and generate the first and second signals to represent the audio signal as detected at the first and second ears, respectively. The system also includes a first sound processor that receives the first signal from the first audio detector and the second signal from a second sound processor via a communication link with the second sound processor. The first sound processor generates a directional signal representative of a spatial filtering of the audio signal detected at the first ear according to an end-fire directional polar pattern and presents an output signal representative of the directional signal to the user at the first ear.

公开(公告)号：US20180192209A1

公开(公告)日：2018-07-05

申请号：US15908776

申请日：2018-02-28

申请人： Advanced Bionics AG

发明人： Chen Chen ,  Dean Swan ,  Leonid M. Litvak

IPC分类号： H04R25/00

CPC分类号： H04R25/552 ,  H04R25/453 ,  H04R25/505 ,  H04R2225/67

摘要： A binaural hearing system (“system”) preserves and/or enhances interaural level differences (“ILDs”) between first and second signals. The system includes audio detectors each associated with an ear of a user. The audio detectors detect an audio signal presented to the user and generate the first and second signals to represent the audio signal as detected at each ear. The system also includes sound processors associated with each ear that each receive the first and second signals from the audio detectors directly and/or by way of a communication link from the other sound processor. The sound processors each perform operations with respect to the first and second signals to preserve and/or enhance the ILDs between the signals. In so doing, the sound processors perform a contralateral gain synchronization operation to a first degree at the first sound processor and to a distinct second degree at the second sound processor.

公开(公告)号：US20220330844A1

公开(公告)日：2022-10-20

申请号：US17762942

申请日：2020-10-23

申请人： Advanced Bionics AG

发明人： Leonid M. Litvak ,  R. Tissa Karunasiri ,  Hannah A. Glick ,  Kanthaiah Koka ,  Chen Chen ,  Anthony J. Spahr ,  Jason Galster ,  Dean Swan

IPC分类号： A61B5/024 ,  A61B5/00 ,  A61B5/11 ,  A61B5/16 ,  A61B5/347 ,  A61B5/372 ,  A61B5/389 ,  A61B5/398

摘要： An illustrative system includes a stimulation device configured to apply stimulation to a recipient, a sensing device configured to detect a physiological condition of the recipient, and a processing unit communicatively coupled to the stimulation device and the sensing device. The processing unit determines a stimulation strategy that is customized to the recipient and includes stimulation frames and stimulation gaps. The processing unit then directs the stimulation device to apply the stimulation to the recipient in accordance with the stimulation strategy by applying the stimulation only during time that corresponds to the stimulation frames. The processing unit also directs the sensing device to detect the physiological condition of the recipient in accordance with the stimulation strategy by detecting only during time that corresponds to the stimulation gaps. Based on the detected physiological condition, the processing unit performs an action. Corresponding systems, methods, and apparatuses are also disclosed.

公开(公告)号：US10469962B2

公开(公告)日：2019-11-05

申请号：US16327823

申请日：2017-07-14

申请人： ADVANCED BIONICS AG

发明人： Chen Chen ,  Leonid M. Litvak ,  Dean Swan

IPC分类号： H04R25/00

摘要： A binaural hearing system (“system”) enhances and/or preserves interaural level differences between first and second signals. The system includes first and second audio detectors associated with first and second ears of a user, respectively. The audio detectors detect an audio signal presented to the user and generate the first and second signals to represent the audio signal as detected at the first and second ears, respectively. The system also includes a first sound processor that receives the first signal from the first audio detector and the second signal from a second sound processor via a communication link with the second sound processor. The first sound processor generates a directional signal representative of a spatial filtering of the audio signal detected at the first ear according to an end-fire directional polar pattern and presents an output signal representative of the directional signal to the user at the first ear.

公开(公告)号：US10469961B2

公开(公告)日：2019-11-05

申请号：US16120203

申请日：2018-08-31

申请人： Advanced Bionics AG

发明人： Chen Chen ,  Dean Swan ,  Leonid M. Litvak

IPC分类号： H04R25/00

摘要： A binaural hearing system includes a binaural pair of microphones that are configured to be located, respectively, at a first ear and a second ear of a user. The system further includes an interconnected binaural pair of sound processors that are associated with the binaural pair of microphones. The sound processors are configured to preserve an interaural level difference (“ILD”) between a first signal generated by the first microphone and a second signal generated by the second microphone. The sound processors do this by performing a contralateral gain synchronization operation to a first degree with respect to the first and second signals at the first sound processor, and to a second degree with respect to the first and second signals at the second sound processor, where the first degree is distinct from the second degree or at least one of the first and second degrees is a partial degree.

公开(公告)号：US20190045308A1

公开(公告)日：2019-02-07

申请号：US16120203

申请日：2018-08-31

申请人： Advanced Bionics AG

发明人： Chen Chen ,  Dean Swan ,  Leonid M. Litvak

IPC分类号： H04R25/00

CPC分类号： H04R25/552 ,  H04R25/453 ,  H04R25/505 ,  H04R2225/67

摘要： A binaural hearing system includes a binaural pair of microphones that are configured to be located, respectively, at a first ear and a second ear of a user. The system further includes an interconnected binaural pair of sound processors that are associated with the binaural pair of microphones. The binaural pair of sound processors are configured to preserve, to a partial degree for each of the first and second ears of the user, an interaural level difference (“ILD”) between a first signal generated by the first microphone and a second signal generated by the second microphone. The sound processors do this by performing a contralateral gain synchronization operation to a first partial degree with respect to the first and second signals at the first sound processor, and to a second partial degree with respect to the first and second signals at the second sound processor.

公开(公告)号：US10091592B2

公开(公告)日：2018-10-02

申请号：US15908776

申请日：2018-02-28

申请人： Advanced Bionics AG

发明人： Chen Chen ,  Dean Swan ,  Leonid M. Litvak

IPC分类号： H04R5/00 ,  H04R25/00

摘要： A binaural hearing system (“system”) preserves and/or enhances interaural level differences (“ILDs”) between first and second signals. The system includes audio detectors each associated with an ear of a user. The audio detectors detect an audio signal presented to the user and generate the first and second signals to represent the audio signal as detected at each ear. The system also includes sound processors associated with each ear that each receive the first and second signals from the audio detectors directly and/or by way of a communication link from the other sound processor. The sound processors each perform operations with respect to the first and second signals to preserve and/or enhance the ILDs between the signals. In so doing, the sound processors perform a contralateral gain synchronization operation to a first degree at the first sound processor and to a distinct second degree at the second sound processor.

公开(公告)号：US07817797B2

公开(公告)日：2010-10-19

申请号：US11422747

申请日：2006-06-07

申请人： Mirjana Popovic ,  Dieter Schulz ,  Dean Swan ,  Andrew Wu

发明人： Mirjana Popovic ,  Dieter Schulz ,  Dean Swan ,  Andrew Wu

IPC分类号： H04M9/08

CPC分类号： H04B3/237 ,  H04B3/234

摘要： An echo canceller comprising a first adaptive filter having N_long coefficients for converging to an echo path, a non-adaptive filter representing a direct echo path portion captured by the first adaptive filter and having N_short default coefficients, where N_long>N_short, for quick convergence of the echo canceller at start-up, wherein the default coefficients are replaced by the first N_short coefficients from the first adaptive filter responsive to an improvement in echo return loss enhancement (ERLE) of the first adaptive filter, a second adaptive filter having N_short default coefficients for modeling the direct echo path and providing an indication of double-talk and echo path changes, decision logic for receiving error signal outputs from the first and second adaptive filters and the non-adaptive filter and in response distinguishing between echo path changes and double-talk, and a non-linear processor for attenuating signals responsive to input from the decision logic.

摘要翻译： 一种回波消除器，包括具有用于收敛到回波路径的N_long系数的第一自适应滤波器，表示由第一自适应滤波器捕获的直接回波路径部分并具有N_short默认系数的非自适应滤波器，其中N_long> N_short用于快速收敛 响应于所述第一自适应滤波器的回波回波损耗增强（ERLE）的改善，所述默认系数被来自所述第一自适应滤波器的所述第一N_short系数替换，所述第二自适应滤波器具有N_short默认系数 用于对直接回波路径进行建模并提供双向通话和回波路径变化的指示，用于从第一和第二自适应滤波器和非自适应滤波器接收误差信号输出的判定逻辑，并且响应于区分回波路径变化和双向通信， 以及响应于来自决策逻辑的输入衰减信号的非线性处理器。

公开(公告)号：US20070286404A1

公开(公告)日：2007-12-13

申请号：US11422747

申请日：2006-06-07

申请人： Mirjana Popovic ,  Dieter Schulz ,  Dean Swan ,  Andrew Wu

发明人： Mirjana Popovic ,  Dieter Schulz ,  Dean Swan ,  Andrew Wu

IPC分类号： H04M9/08

CPC分类号： H04B3/237 ,  H04B3/234

摘要： An echo canceller comprising a first adaptive filter having N_long coefficients for converging to an echo path, a non-adaptive filter representing a direct echo path portion captured by the first adaptive filter and having N short default coefficients, where N_long>N_short, for quick convergence of the echo canceller at start-up, wherein the default coefficients are replaced by the first N_short coefficients from the first adaptive filter responsive to an improvement in echo return loss enhancement (ERLE) of the first adaptive filter, a second adaptive filter having N short default coefficients for modeling the direct echo path and providing an indication of double-talk and echo path changes, decision logic for receiving error signal outputs from the first and second adaptive filters and the non-adaptive filter and in response distinguishing between echo path changes and double-talk, and a non-linear processor for attenuating signals responsive to input from the decision logic.

摘要翻译： 一种回波消除器，包括具有用于会聚到回波路径的N_long系数的第一自适应滤波器，表示由第一自适应滤波器捕获的直接回波路径部分并具有N个短缺省系数的非自适应滤波器，其中N_long> N_short用于快速收敛 ，其中响应于所述第一自适应滤波器的回波回波损耗增强（ERLE）的改善，所述默认系数被来自所述第一自适应滤波器的所述第一N_short系数替换，具有N个短的第二自适应滤波器 用于建模直接回波路径并提供双向通话和回波路径改变的指示的默认系数，用于从第一和第二自适应滤波器和非自适应滤波器接收误差信号输出的判定逻辑，并且响应区分回波路径变化和 双向通话以及响应于来自判定逻辑的输入衰减信号的非线性处理器。

公开(公告)号：US08521798B2

公开(公告)日：2013-08-27

申请号：US12235101

申请日：2008-09-22

申请人： Dean Swan

发明人： Dean Swan

IPC分类号： G06F17/10

CPC分类号： H03H17/04

摘要： A digital all-pass filter has an input port leading to an input sum block and a first feed forward path. Within the first feed forward path is a multiplier. The filter also has an output port coupled to an output sum block that receives a signal from the first feed forward path. A first feedback path is also provided from the output port to the input sum block. The first feedback path includes a multiplier therein. Nested within this structure is a first order all-pass filter having a feed forward path including a forward path delay and forward path that is delayed and a feedback path absent a separate delay element and beginning after the forward path delay element.

摘要翻译： 数字全通滤波器具有通向输入和块和第一前馈路径的输入端口。 在第一个前馈路径中是乘数。 滤波器还具有耦合到输出和块的输出端口，其接收来自第一前馈路径的信号。 还从输出端口到输入和块提供第一反馈路径。 第一反馈路径包括其中的乘法器。 嵌套在该结构内的是一阶全通滤波器，其具有前馈路径，该前馈路径包括被延迟的前向路径延迟和前向路径，并且反馈路径不存在单独的延迟元件并且在前向路径延迟元件之后开始。