公开(公告)号：US20200224886A1

公开(公告)日：2020-07-16

申请号：US16818442

申请日：2020-03-13

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming SUN ,  Ming-Han TSAI ,  Chiung-Wen LIN ,  Po-Wei YU ,  Wei-Ming WANG ,  Sen-Huang HUANG

IPC: F24C15/20 ,  G01J5/10 ,  G01J5/00 ,  A61F13/42 ,  B66B5/00

Abstract: There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.

公开(公告)号：US20230032079A1

公开(公告)日：2023-02-02

申请号：US17732530

申请日：2022-04-29

Applicant: PIXART IMAGING INC.

Inventor： Yen-Chang CHU ,  Po-Wei YU ,  Yen-Po CHEN ,  Chih-Ming SUN

IPC: G01J5/10 ,  G01J5/0875

Abstract: There is provided a thermometer structure including a circuit board, an infrared thermometer, a heat sink and a metal block. The infrared thermometer is arranged on the circuit board and electrically connected thereto. The heat sink is arranged on the circuit board and covers the infrared thermometer. The metal block is in contact with at least one of the circuit board and the heat sink to stabilize a local temperature of the thermometer structure.

公开(公告)号：US20200041337A1

公开(公告)日：2020-02-06

申请号：US16458626

申请日：2019-07-01

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming SUN ,  Po-Wei YU

IPC: G01J1/04 ,  H05K1/18

Abstract: An optical sensor assembly is provided. The optical sensor assembly includes a circuit board, an optical sensor positioned on the circuit board, and a front cover attached to the circuit board and covering the optical sensor. The front cover includes an optical element configured to guide or condense an incident light of a predetermined wavelength onto the optical sensor. The front cover is made of polypropylene or polyethylene. The predetermined wavelength is in a range from 8 micrometers to 12 micrometers.

公开(公告)号：US20220122293A1

公开(公告)日：2022-04-21

申请号：US17567184

申请日：2022-01-03

Applicant: PIXART IMAGING INC.

Inventor： Chih-Ming SUN ,  Po-Wei YU ,  Yen-Chang CHU

IPC: G06T7/80 ,  G06T7/30 ,  G01J5/80 ,  A61B5/01 ,  H04N5/247 ,  G01J5/00

Abstract: There is provided a temperature measurement system including an image sensor, a thermal sensor and a processor. The image sensor captures an image frame. The thermal sensor captures a thermal image. The processor calibrates measured temperatures of the thermal sensor and calibrates offset pixels between the image frame and the thermal image corresponding to different operating distances.

公开(公告)号：US20220061675A1

公开(公告)日：2022-03-03

申请号：US17385046

申请日：2021-07-26

Applicant: PIXART IMAGING INC.

Inventor： Po-Wei YU ,  Yi-Chung CHEN ,  Ting-Yang CHANG ,  Chih-Ming SUN ,  Kai-Shun CHEN ,  Yen-Chang CHU

IPC: A61B5/01

Abstract: There is provided a forehead temperature measurement system including an image sensor, a thermal sensor and a processor. The image sensor is used to output an image frame. The thermal sensor is used to output a thermal image. The processor is used to determine a forehead region in the image frame, map the forehead region to the thermal image and identify a forehead temperature according to a forehead mapped region in the thermal image. The processor further calibrates or compensates the forehead temperature according to an area. of the forehead region.