公开(公告)号：US12028683B2

公开(公告)日：2024-07-02

申请号：US17709893

申请日：2022-03-31

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Hongjing Guo ,  Lelin Wang ,  Guoliang Li ,  Xinshan Wang ,  Wenkai Han

IPC: H04R25/00 ,  G10K11/178

CPC classification number: H04R25/505 ,  G10K11/17873 ,  G10K11/17885 ,  H04R25/43 ,  G10K2210/1081 ,  G10K2210/3027 ,  H04R2225/41 ,  H04R2225/43 ,  H04R2430/01 ,  H04R2460/01

Abstract: The present application relates to the field of signal processing, and in particular, to a hearing aid method and apparatus for noise reduction. A hearing aid method for noise reduction, comprising: identifying a scenario where a user is located; and if detection data contains sample data in a sample database corresponding to the scenario, entering a hearing aid mode, and in the hearing aid mode, playing back all or part of external sounds, the external sounds being acquired by a reference microphone; the sample database is a sample sound library, and the sample data is a sample sound; different scenarios correspond to different sample sound libraries; wherein the sample sounds in respective sample sound libraries are configured with priorities; and the sample sounds in the sample sound libraries corresponding to different scenarios have different priorities.

公开(公告)号：US11096628B2

公开(公告)日：2021-08-24

申请号：US16164800

申请日：2018-10-19

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Xinshan Wang ,  Guoliang Li ,  Ke Yang ,  Duan Zeng

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/11 ,  G06K9/00

Abstract: A heart rate detection method includes: acquiring a plurality of time-domain heart rate detection data; if the time-domain heart rate detection data includes a weak interference signal, extracting a first feature point from the time-domain heart rate detection data, and collecting statistics on feature data of the first feature point to determine time-domain heart rate detection data used in calculating heart rate; if the time-domain heart rate detection data includes a strong interference signal, transforming the time-domain heart rate detection data to a frequency domain to obtain a plurality of frequency-domain heart rate detection data, extracting a second feature point from the frequency-domain heart rate detection data, and collecting statistics on feature data of the second feature point to determine frequency-domain heart rate detection data used in calculating heart rate; and calculating the heart rate based on the time-domain or the frequency-domain heart rate detection data.

公开(公告)号：US11349525B2

公开(公告)日：2022-05-31

申请号：US17031862

申请日：2020-09-24

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Wenkai Han ,  Guoliang Li ,  Xinshan Wang ,  Hongjing Guo ,  Hu Zhu

IPC: H04B3/32 ,  H04M9/08 ,  H04M3/22

Abstract: A double talk detection method, a double talk detection apparatus and an echo cancellation system are provided. The double talk detection method comprises: determining, according to an energy ratio between a far-end digital voice signal and a near-end digital voice signal, and a frequency coherence value between the near-end digital voice signal and the far-end digital voice signal, whether a near-end speaker's digital voice signal is present in the near-end digital voice signal. The double talk detection method avoids missing detection and false detection, improves the accuracy of double talk detection, cancels the echo in the near-end voice signal thoroughly when applied in the field of echo cancellation, and improves the communication experience of both talk parties.

公开(公告)号：US11790882B2

公开(公告)日：2023-10-17

申请号：US17695816

申请日：2022-03-15

Applicant: Shenzhen Goodix Technology Co., Ltd.

Inventor： Youhong Lu ,  Lelin Wang ,  Guoliang Li ,  Ching-Hua Yeh

IPC: G10K11/178 ,  H04R1/10

CPC classification number: G10K11/17854 ,  G10K11/17823 ,  G10K11/17825 ,  G10K11/17881 ,  H04R1/1083 ,  G10K2210/1081 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3044 ,  G10K2210/3048 ,  H04R2460/01

Abstract: Embodiments and methods perform ear cavity frequency response (EFCR) adaptive noise cancelation (ANC) with path-compensation over an entire main path to the eardrum (MPED) of a user. A number of ANC filter models are pre-trained to include respective anti-noise path (ANP) filter models and respective MPED filter models representing ANC filter configurations. As a user wears a headphone earpiece, characteristics of the wearer and the position/orientation of wearing manifest a wearer/wearing condition. Techniques described herein can continuously or periodically and efficiently determine which of the pre-trained ANC filter models most closely described the present MPED of the present wearer/wearing condition, and can continuously or periodically update the ANC filter configuration based on the pre-trained models to maintain high-performance ANC that includes EFCR path-compensation.

公开(公告)号：US11915680B2

公开(公告)日：2024-02-27

申请号：US17694770

申请日：2022-03-15

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Guoliang Li ,  Lelin Wang ,  Wenkai Han ,  Hongjing Guo

IPC: G10K11/178 ,  H04R1/10

CPC classification number: G10K11/17854 ,  G10K11/17823 ,  G10K11/17853 ,  G10K11/17873 ,  H04R1/1083 ,  G10K2210/1081 ,  G10K2210/3012 ,  G10K2210/3025 ,  G10K2210/3027 ,  G10K2210/3028 ,  G10K2210/3056 ,  G10K2210/3222 ,  H04R2460/01

Abstract: Embodiments of the present application provide a method and system for active noise control, which can meet different needs of different consumers on sound quality of headphones. The method includes: determining an expected noise control curve of performing active noise control on a target object; determining a target filter according to the expected noise control curve and a filter model; and performing noise control processing on an external noise signal using the target filter.

公开(公告)号：US11381909B2

公开(公告)日：2022-07-05

申请号：US17079193

申请日：2020-10-23

Applicant: Shenzhen Goodix Technology Co., Ltd.

Inventor： Na Li ,  Guoliang Li ,  Xinshan Wang ,  Hu Zhu ,  Hongjing Guo

IPC: H04R3/00 ,  H04R3/04 ,  H04R5/04 ,  H04S1/00 ,  H04S7/00

Abstract: Some embodiments of the present disclosure provide a method and an apparatus for forming a differential beam, a method and an apparatus for processing a signal, and a chip. The method for forming a differential beam includes: obtaining a differential beam forming signal according to an input signal acquired by two microphones in a microphone array (101); and performing a nonlinear adjustment on at least an amplitude of the differential beam forming signal based on a distance between the two microphones and a signal frequency of the input signal to obtain the adjusted differential beam forming signal (102). With the above solution, a constant beam characteristic of the differential beam forming signal can be ensured as much as possible for microphone arrays of different specifications.

公开(公告)号：US11056130B2

公开(公告)日：2021-07-06

申请号：US16661935

申请日：2019-10-23

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： Hu Zhu ,  Xinshan Wang ,  Guoliang Li ,  Duan Zeng ,  Hongjing Guo

IPC: G10L21/0232 ,  G10L21/0364

Abstract: The present disclosure provides a speech enhancement method and apparatus, a device and a storage medium. The method includes: acquiring a first speech signal and a second speech signal; obtaining a signal to noise ratio of the first speech signal; determining, according to the signal to noise ratio of the first speech signal, a fusion coefficient of filtered signals corresponding to the first speech signal and the second speech signal; and performing, according to the fusion coefficient, speech fusion processing on the filtered signals corresponding to the first speech signal and the second speech signal to obtain an enhanced speech signal. Thereby, it is realized that a fusion coefficient of speech signals of a non-air conduction speech sensor and an air conduction speech sensor is adaptively adjusted according to environment noise, thereby improving the signal quality after speech fusion, and improving the effect of speech enhancement.