公开(公告)号：US12019809B2

公开(公告)日：2024-06-25

申请号：US18132587

申请日：2023-04-10

Applicant: PIXART IMAGING INC.

Inventor： Tien-Chung Yang ,  Chia-Kai Chen ,  En-Feng Hsu ,  Chen-Lung Liu

IPC: G06F3/01 ,  G01S17/42 ,  G01S17/50 ,  G01S17/88

CPC classification number: G06F3/017 ,  G01S17/42 ,  G01S17/50 ,  G01S17/88

Abstract: A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.

公开(公告)号：US20230175836A1

公开(公告)日：2023-06-08

申请号：US17541276

申请日：2021-12-03

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Chia-Kai Chen

IPC: G01B11/14 ,  G01B9/02056

CPC classification number: G01B11/14 ,  G01B9/02058

Abstract: A distance determining system comprising: a light source, configured to emit light; a first light sensing region, away from the light source for a first distance, comprising at least one first light sensing device; a second light sensing region, away from the light source for a second distance larger than the first distance, comprising at least one second light sensing device; and a processing circuit, configured to compute distance information of an object which reflects the light to the first light sensing region and the second light sensing region, according to a first relation between a first light intensity sensed by the first light sensing region and a second light intensity sensed by the second light sensing region.

公开(公告)号：US11662828B2

公开(公告)日：2023-05-30

申请号：US17334428

申请日：2021-05-28

Applicant: PIXART IMAGING INC.

Inventor： Tien-Chung Yang ,  Chia-Kai Chen ,  En-Feng Hsu ,  Chen-Lung Liu

IPC: G06F3/01 ,  G01S17/88 ,  G01S17/50 ,  G01S17/42

CPC classification number: G06F3/017 ,  G01S17/42 ,  G01S17/50 ,  G01S17/88

Abstract: A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.