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    FOREHEAD TEMPERATURE MEASUREMENT SYSTEM WITH HIGH ACCURACY
    3.
    发明申请
    FOREHEAD TEMPERATURE MEASUREMENT SYSTEM WITH HIGH ACCURACY 有权

    公开(公告)号：US20220061675A1

    公开(公告)日：2022-03-03

    申请号：US17385046

    申请日：2021-07-26

    申请人： PIXART IMAGING INC.

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

    IPC分类号： A61B5/01

    摘要： 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.

    FORCE SENSOR AND MANUFACTURING METHOD THEREOF
    6.
    发明申请
    FORCE SENSOR AND MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：US20200225098A1

    公开(公告)日：2020-07-16

    申请号：US16247573

    申请日：2019-01-15

    申请人： PixArt Imaging Inc.

    发明人： Chih-Ming SUN

    IPC分类号： G01L1/14 ,  H05K1/03 ,  H05K1/11

    摘要： There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed.

    SMOKE DETECTOR WITH PROTRUSIONS
    7.
    发明公开
    SMOKE DETECTOR WITH PROTRUSIONS 审中-公开

    公开(公告)号：US20230206743A1

    公开(公告)日：2023-06-29

    申请号：US18111605

    申请日：2023-02-20

    申请人： PixArt Imaging Inc.

    发明人： Cheng-Nan TSAI ,  Guo-Zhen WANG ,  Ching-Kun CHEN ,  Yen-Chang CHU ,  Chih-Ming SUN

    IPC分类号： G08B17/107

    CPC分类号： G08B17/107

    摘要： There is provided a smoke detector including a light source, a reflective surface, a light sensor and a processor. The light sensor receives reflected light when the light source emits light toward the reflective surface, and generates a reference detection signal when there is no smoke. The processor receives the detection signal from the light sensor, and automatically selects a set of predetermined condition thresholds according to a profile of the detection signal to be compared with the detection signal thereby determining whether to generate an alarm according to the comparison result.

    SMOKE DETECTOR
    8.
    发明申请
    SMOKE DETECTOR 有权

    公开(公告)号：US20220165141A1

    公开(公告)日：2022-05-26

    申请号：US17320222

    申请日：2021-05-14

    申请人： PixArt Imaging Inc.

    发明人： Cheng-Nan TSAI ,  Guo-Zhen WANG ,  Ching-Kun CHEN ,  Yen-Chang CHU ,  Chih-Ming SUN

    IPC分类号： G08B17/107

    摘要： There is provided a smoke detector including a light source, a reflective surface, a light sensor and a processor. The light sensor receives reflected light when the light source emits light toward the reflective surface, and generates a reference detection signal when there is no smoke. The processor receives the detection signal from the light sensor, and automatically selects a set of predetermined condition thresholds according to a profile of the detection signal to be compared with the detection signal thereby determining whether to generate an alarm according to the comparison result.

    OPTICAL SENSOR ASSEMBLY
    9.
    发明申请
    OPTICAL SENSOR ASSEMBLY 审中-公开

    公开(公告)号：US20200041337A1

    公开(公告)日：2020-02-06

    申请号：US16458626

    申请日：2019-07-01

    申请人： PixArt Imaging Inc.

    发明人： Chih-Ming SUN ,  Po-Wei YU

    IPC分类号： G01J1/04 ,  H05K1/18

    摘要： 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.