公开(公告)号：US10070231B2

公开(公告)日：2018-09-04

申请号：US14449372

申请日：2014-08-01

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Jesper Bünsow Boldt

IPC: H04R25/00

Abstract: The present disclosure regards a hearing device comprising a power source, electric circuitry, a loudspeaker, at least one microphone for sound from an acoustic environment, and at least one wireless receiver for wirelessly received sound signals. The microphone is configured to generate an environment sound signal. The wireless receiver is configured generate a source sound signal. The electric circuitry is configured to estimate at least one parameter of an impulse response from the location of the origin of the wirelessly received signal to the location of a user of the hearing device in dependence on the source sound signal and the environment sound signal. The electric circuitry is further configured to process the environment sound signal in dependence on the estimated at least one impulse-response parameter, thereby generating an output sound signal. The output sound signal is processed into sound by the loudspeaker.

公开(公告)号：US08923540B2

公开(公告)日：2014-12-30

申请号：US13924341

申请日：2013-06-21

Applicant: Oticon A/S

Inventor： Jesper Bünsow Boldt ,  Thomas Bo Elmedyb

IPC: H04R25/00

CPC classification number: H04R25/453 ,  H04R25/505 ,  H04R25/552 ,  H04R25/554 ,  H04R2430/03 ,  Y10T29/49005

Abstract: A hearing aid system may include an ear-mould for a child, an output transducer, and an electrical feedback path. A forward path includes a signal processor that modifies an electrical input signal to a specific hearing profile over a predefined frequency range which includes a number of frequency bands. Maximum forward gain values IGmax for each band are stored in a memory, restricting loop gain to a predetermined value in each band. The hearing aid system further includes a relatively slow online feedback manager unit configured to, with a predefined update frequency, identify current feedback gain in each frequency band, and to subsequently adapt the maximum forward gain values IGmax in each of the frequency bands in accordance with a predefined scheme. The feedback manager unit is thus reduces the risk of howling by decreasing the maximum forward gain values IGmax in said ear-mould for a child.

Abstract translation: 助听器系统可以包括用于儿童的耳模，输出换能器和电反馈路径。 前向路径包括信号处理器，该信号处理器在包括多个频带的预定频率范围内修改到特定听力轮廓的电输入信号。 每个频带的最大正向增益值IGmax存储在存储器中，将环路增益限制在每个频带中的预定值。 助听器系统还包括相对较慢的在线反馈管理器单元，其被配置为以预定的更新频率识别每个频带中的当前反馈增益，并且随后根据以下方式调整每个频带中的最大正向增益值IGmax 一个预定义的方案。 因此，反馈管理器单元通过降低儿童的所述耳模中的最大前进增益值IGmax而降低啸叫的风险。