公开(公告)号：US20190049579A1

公开(公告)日：2019-02-14

申请号：US15672456

申请日：2017-08-09

Applicant: SONY CORPORATION ,  SONY INTERACTIVE ENTERTAINMENT INC.

Inventor： PETER SHINTANI ,  MORIO USAMI ,  KEITH RESCH

IPC: G01S15/02 ,  G01S15/87 ,  G01S15/42 ,  G01S3/80 ,  G01S7/521

Abstract: An acoustic-based Direction of Arrival (DoA) system uses acoustic information to determine the direction of incoming sound, such as a person talking. The direction of the sound is then used to focus a laser-based time of flight (ToF) system to narrow the area of laser illumination, improving the signal to noise ratio because laser illumination is focused on the direction of the sound. The DoA system also provides elevation information pertaining to the source of the sound, to further narrow the required field of view of the laser ToF system.