公开(公告)号：US20220377181A1

公开(公告)日：2022-11-24

申请号：US17812168

申请日：2022-07-12

Applicant: DSP GROUP LTD.

Inventor： Yaakov CHEN ,  Adoram Erell ,  Dimitri Lvov

IPC: H04M9/08 ,  H04B3/23

Abstract: A first mobile communication device that includes a first microphone, a first speaker, and a first delay unit. The first microphone is configured to (i) receive, during a conference call, a first user first microphone signal from a first user, and (ii) output a first microphone digital signal to the first delay unit. The first user first microphone signal represents audio content outputted by the first user. The first delay unit is configured to delay, by a delay period, the first microphone digital signal to provide a delayed first user first device digital signal. The first mobile communication device is configured to output, to a mixer, the delayed first user first device digital signal. The delay period is determined based on measurements executed by at least one mobile communication device out of the first mobile communication device, a second mobile communication device and a third mobile communication device.

公开(公告)号：US20230122089A1

公开(公告)日：2023-04-20

申请号：US17930658

申请日：2022-09-08

Applicant: DSP Group Ltd.

Inventor： Yaakov CHEN ,  Moshe TZUR

IPC: G10L21/0216 ,  G10L25/84

Abstract: Noise suppression in audio signals received by a voice activated device is supported with motion sensors. Motion sensors may provide an indication of movement or motion information, such as the linear or rotational displacement of the voice activated device. A noise reduction unit, which is held in idle mode to conserve power, may be activated in response to an indication of movement. When activated, the noise reduction unit may adapt to environmental noise from the new location or orientation, and switch back to idle mode. When speech is subsequently detected in audio signals, the noise reduction unit has already adapted to the noise and accordingly may reduce noise in the audio signal with no delay when activated. Additionally or alternatively, motion information may be used by the noise reduction unit to quickly adapt to noise in the audio signal.

公开(公告)号：US20190215608A1

公开(公告)日：2019-07-11

申请号：US16233086

申请日：2018-12-27

Applicant: Onkyo Corporation ,  DSP Group Ltd.

Inventor： Yoshitada TAKESHIMA ,  Dmitri LVOV ,  Yaakov CHEN

IPC: H04R5/033 ,  H04R5/027 ,  H04R5/02 ,  H04R5/04

Abstract: Provided is a wearable audio input/output device. The wearable audio input/output device is provided with a frame, a first audio collection unit, a second audio collection unit, and a first speaker. The frame can be mounted to a user. The first audio collection unit is provided on the frame. The second audio collection unit is provided on the frame. The second audio collection unit is arranged such that the distance between the first audio collection unit and mouth of the user is less than the distance between the second audio collection unit and the mouth of the user. The first speaker is provided on the frame between the first audio collection unit and the second audio collection unit.

公开(公告)号：US20230421704A1

公开(公告)日：2023-12-28

申请号：US18460882

申请日：2023-09-05

Applicant: DSP Group Ltd.

Inventor： Yaakov CHEN ,  Adoram ERELL ,  Dmitri Lvov

IPC: H04M9/08 ,  H04B3/23

CPC classification number: H04M9/082 ,  H04B3/23 ,  G10L2021/02082

Abstract: A first mobile communication device that includes a first microphone, a first speaker, and a first delay unit. The first microphone is configured to (i) receive, during a conference call, a first user first microphone signal from a first user, and (ii) output a first microphone digital signal to the first delay unit. The first user first microphone signal represents audio content outputted by the first user. The first delay unit is configured to delay, by a delay period, the first microphone digital signal to provide a delayed first user first device digital signal. The first mobile communication device is configured to output, to a mixer, the delayed first user first device digital signal. The delay period is determined based on measurements executed by at least one mobile communication device out of the first mobile communication device, a second mobile communication device and a third mobile communication device.