US 12,225,353 B2
Hearing device
Fa Wang, Shanghai (CN)
Assigned to Shanghai United Imaging Microelectronics Technology Co., Ltd., Shanghai (CN)
Filed by Shanghai United Imaging Microelectronics Technology Co., Ltd., Shanghai (CN)
Filed on Oct. 22, 2022, as Appl. No. 17/971,587.
Claims priority of application No. 202111552142.5 (CN), filed on Dec. 17, 2021; and application No. 202123187242.0 (CN), filed on Dec. 17, 2021.
Prior Publication US 2023/0119844 A1, Apr. 20, 2023
Int. Cl. H04R 25/00 (2006.01)
CPC H04R 25/505 (2013.01) [H04R 25/305 (2013.01); H04R 25/353 (2013.01); H04R 2225/025 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A hearing device, comprising:
a device body;
an over-ear microphone;
a receiver, configured to emit an audio signal, the audio signal comprising an audio signal of a second preset frequency; the audio signal being reflected to form a feedback signal comprising: the audio signal of the second preset frequency, when being transmitted to an in-ear microphone through an ear canal, generating a second feedback signal; and the audio signal of the second preset frequency, when being transmitted to the over-ear microphone through the ear canal, generating a sound feedback signal; the over-ear microphone being configured to receive the sound feedback signal;
the in-ear microphone, arranged at a proximal end of the device body and configured to receive the feedback signal, the proximal end of the device body being proximate to the ear canal; and
a signal analyzing module, comprising a feedback control unit and connected to the in-ear microphone; and the signal analyzing module being configured to analyze the feedback signal to obtain an analysis result comprising: the feedback control unit being configured to estimate and determine a transfer function of a feedback path based on the second feedback signal received by the in-ear microphone and the sound feedback signal received by the over-ear microphone.