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.