公开(公告)号：US10582117B1

公开(公告)日：2020-03-03

申请号：US16401196

申请日：2019-05-02

Applicant: Ryo Tanaka ,  Pascal Cleve

Inventor： Ryo Tanaka ,  Pascal Cleve

IPC: H04N5/232 ,  H04N7/15 ,  G06F3/01 ,  H04N7/14 ,  H04N5/247 ,  G06T7/73 ,  G10L25/78 ,  H04R1/32

Abstract: A video conference system operates to identity and to determine a location of things in a conference room, and to determine an orientation of video conference participants towards the identified things, and uses an assigned priority of the things that the participants are oriented towards to automatically control a camera to focus on the highest priority thing.

公开(公告)号：US20190313187A1

公开(公告)日：2019-10-10

申请号：US15945893

申请日：2018-04-05

Applicant: HOLGER STOLTZE ,  RYO TANAKA ,  PASCAL CLEVE

Inventor： HOLGER STOLTZE ,  RYO TANAKA ,  PASCAL CLEVE

IPC: H04R3/00 ,  H04R1/40 ,  G10L21/0232 ,  H04R3/04 ,  G10L25/78

Abstract: A video conferencing system has a microphone array that operates to receive acoustic signals corresponding to voice activity and to determine that the signals are either from within a sound field of interest and from outside the sound field of interest, and if the signals are from outside the sound field of interest the system attenuates these signals by not steering a microphone array beam towards these signals.

公开(公告)号：US09928847B1

公开(公告)日：2018-03-27

申请号：US15668938

申请日：2017-08-04

Applicant: Pascal Cleve ,  Ryo Tanaka

Inventor： Pascal Cleve ,  Ryo Tanaka

IPC: H04B3/20 ,  G10L21/0232 ,  H04R1/40 ,  H04R3/00 ,  G10L21/0208 ,  G10L21/0216 ,  H04M3/56

CPC classification number: G10L21/0232 ,  G10L21/0208 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M3/002 ,  H04M3/568 ,  H04M9/082 ,  H04M19/00 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/20

Abstract: An audio or video conferencing system having an array comprised of two or more microphones and having one or more loudspeakers positioned proximate to the microphones. The conferencing system also has acoustic echo cancellation (AEC) functionality that removes direct and reverberant acoustic echo from microphone signals in two separate acoustic echo cancellation operations. The first AEC operation removes direct acoustic echo prior to a beamforming operation, and the second AEC operation removes reverberant acoustic echo from a microphone signal subsequent to the beamforming operation.