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    Wearable infrared temperature sensing device
    21.
    发明授权
    Wearable infrared temperature sensing device 审中-公开

    公开(公告)号：US10670465B2

    公开(公告)日：2020-06-02

    申请号：US16194212

    申请日：2018-11-16

    Applicant: PIXART IMAGING INC.

    Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Cheng-Nan Tsai

    IPC: G01J5/02 ,  G01J5/04 ,  H04N5/33 ,  G01J5/06 ,  H04N5/225 ,  B81B7/00

    Abstract: A wearable device includes a case and a far infrared temperature sensing device. The case has a first opening. The far infrared temperature sensing device is disposed inside the case of the wearable device. The far infrared temperature sensing device includes an assembly structure, a sensor chip, a filter structure, and a metal shielding structure. The assembly structure has an accommodating space and a top opening. The sensor chip is disposed in the accommodating space of the assembly structure. The filter structure is disposed above the sensor chip. The metal shielding structure is disposed above the sensor chip, and has a second opening to expose the filter structure. The first and second openings are communicated to cooperatively define a through hole.

    Biometric detection module with denoising function and biometric detection method thereof
    23.
    发明授权
    Biometric detection module with denoising function and biometric detection method thereof 有权

    公开(公告)号：US10092244B2

    公开(公告)日：2018-10-09

    申请号：US14685782

    申请日：2015-04-14

    Applicant: PIXART IMAGING INC.

    Inventor： Chih-Yuan Chuang ,  Cheng-Nan Tsai ,  Ming-Tsan Kao ,  Ren-Hau Gu ,  Yen-Min Chang

    IPC: A61B5/024 ,  A61B5/00 ,  A61B5/1455

    Abstract: A biometric detection module including a light source module, a detection region and a control module is provided. The light source module is configured to emit green light, red light and IR light in a time division manner to illuminate a skin surface. The detection region is configured to detect penetration light emitted from the light source module for illuminating the skin surface and passing through body tissues to correspondingly generate a green light signal, a red light signal and an IR light signal. The control module is configured to determine a filtering parameter according to the green light signal to accordingly filter the red light signal and the IR light signal, and calculate a biometric characteristic according to at least one of the green light signal, a filtered red light signal and a filtered IR light signal.

    SEMI-PENETRATING TYPE OPTICAL DETECTION APPARATUSES AND METHOD FOR PHYSIOLOGICAL CHARACTERISTIC(S)
    25.
    发明申请
    SEMI-PENETRATING TYPE OPTICAL DETECTION APPARATUSES AND METHOD FOR PHYSIOLOGICAL CHARACTERISTIC(S) 审中-公开

    公开(公告)号：US20180049702A1

    公开(公告)日：2018-02-22

    申请号：US15390726

    申请日：2016-12-27

    Applicant: PixArt Imaging Inc.

    Inventor： Cheng-Nan Tsai

    IPC: A61B5/00 ,  A61B5/1455

    CPC classification number: A61B5/7214 ,  A61B5/14552 ,  A61B5/681 ,  A61B2562/0238 ,  A61B2562/0242

    Abstract: An optical detection method for detecting physiological characteristic(s), includes: providing at least one light emitting unit; disposing the light emitting unit on a first plane to emit light to a skin surface position of a human body part to be detected of a user; providing at least one optical sensing circuit; disposing the optical sensing circuit on a second plane to receive a sensing result of Photoplethysmography (PPG) signal from another skin surface position of the human body part to be detected; and generating a physiological characteristic(s) detection result according to the sensing result; the first plane is different and distinct from the second plane, and a substantial angle is formed between the two plans.

    SMOKE DETECTOR WITH ANTI-INSECT FUNCTION AND SPOILER FUNCTION
    26.
    发明公开
    SMOKE DETECTOR WITH ANTI-INSECT FUNCTION AND SPOILER FUNCTION 审中-公开

    公开(公告)号：US20240159642A1

    公开(公告)日：2024-05-16

    申请号：US18422024

    申请日：2024-01-25

    Applicant: PixArt Imaging Inc.

    Inventor： Yen-Chang Chu ,  Cheng-Nan Tsai ,  Chih-Ming Sun ,  Zhi-Hao Wu ,  Hung-Yu Lai

    IPC: G01N15/075 ,  G01N33/00

    CPC classification number: G01N15/075 ,  G01N33/0027

    Abstract: A smoke detector with an anti-insect function includes a substrate, an optical detection module, a top cover, a base and a perforated plate. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The top cover has a lateral wall. The base is disposed on the substrate and connected to the top cover to cover the optical detection module. The base has a second block structure partly overlapped with the lateral wall to form a guiding channel. The perforated plate is disposed between the lateral wall and the second block structure to prevent an insect from moving into the top cover through the guiding channel.

    Smoke detector with protrusions
    27.
    发明授权
    Smoke detector with protrusions 有权

    公开(公告)号：US11854361B2

    公开(公告)日：2023-12-26

    申请号：US18111605

    申请日：2023-02-20

    Applicant: PixArt Imaging Inc.

    Inventor： Cheng-Nan Tsai ,  Guo-Zhen Wang ,  Ching-Kun Chen ,  Yen-Chang Chu ,  Chih-Ming Sun

    IPC: G08B17/10 ,  G08B17/107

    CPC classification number: G08B17/107

    Abstract: 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 detection device for physiological characteristic identification
    29.
    发明授权
    Optical detection device for physiological characteristic identification 有权

    公开(公告)号：US11284799B2

    公开(公告)日：2022-03-29

    申请号：US16202022

    申请日：2018-11-27

    Applicant: PixArt Imaging Inc.

    Inventor： Cheng-Nan Tsai

    IPC: A61B5/00

    Abstract: An optical detection device for physiological characteristic identification includes a substrate, a light source and an optical receiver. The light source includes a plurality of first lighting units and a plurality of second lighting units symmetrically arranged on the substrate. The optical receiver is disposed on the substrate and adapted to analyze optical signals emitted by the light source for acquiring a result of the physiological characteristic identification.

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