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2151 条记录 (耗时 0.025 秒)

    Smoke detector capable of distinguishing smoke and particles
    2.
    发明授权
    Smoke detector capable of distinguishing smoke and particles 有权

    公开(公告)号：US12106649B2

    公开(公告)日：2024-10-01

    申请号：US18509350

    申请日：2023-11-15

    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： G08B17/10 ,  G08B17/107

    CPC分类号： G08B17/107

    摘要： There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

    Portable electronic device and operation method
    3.
    发明授权
    Portable electronic device and operation method 有权

    公开(公告)号：US12106605B2

    公开(公告)日：2024-10-01

    申请号：US18225443

    申请日：2023-07-24

    申请人： PIXART IMAGING INC.

    发明人： Guo-Zhen Wang ,  Han-Chang Lin

    IPC分类号： G06V40/16 ,  G06V10/10 ,  H04N23/611 ,  H04N23/65 ,  H04N23/667

    CPC分类号： G06V40/166 ,  G06V10/17 ,  H04N23/611 ,  H04N23/651 ,  H04N23/667

    摘要： A portable electronic device and an operation method are provided. The portable electronic device includes a body, a screen, a camera, an image sensor and a main system. The image sensor continually captures a first image outside the body with a first resolution and a first power consumption. The camera is turned on in the first state of the portable electronic device by the main system to capture a second image outside the body with a second power consumption and a second resolution only when the face image information appeared for over two seconds on the screen is detected by the image sensor from the first image. The second resolution is higher than the first resolution, and the second power consumption is higher than the first power consumption.

    Optical mouse and light pipe thereof
    4.
    发明授权
    Optical mouse and light pipe thereof 有权

    公开(公告)号：US12105297B2

    公开(公告)日：2024-10-01

    申请号：US18235884

    申请日：2023-08-21

    申请人： PixArt Imaging Inc.

    发明人： Hun-Kwang Lee ,  Sai-Mun Lee ,  Priscilla Tze-Wei Goh ,  Lye-Pin Chu

    IPC分类号： G02B27/09 ,  G06F3/03 ,  G06F3/0354

    CPC分类号： G02B27/0994 ,  G06F3/0304 ,  G06F3/03543

    摘要： An optical mouse operated with respect to an illuminated surface outside the optical mouse is provided. The optical mouse includes a light source configured to emit a light beam, and a light pipe including a first optical element and a second optical element. The light beam enters the light pipe through the first optical element, and then propagates in the light pipe from the first optical element to the second optical element without reflection, and then leaves the light pipe through the second optical element, and then illuminates the illuminated surface. The light pipe does not have any protrusion extending therefrom and attached to a front surface of the light source.

    FIRM ALARM DEVICE HAVING TWO PROCESSORS
    7.
    发明公开
    FIRM ALARM DEVICE HAVING TWO PROCESSORS 审中-公开

    公开(公告)号：US20240257632A1

    公开(公告)日：2024-08-01

    申请号：US18632330

    申请日：2024-04-11

    申请人： PixArt Imaging Inc.

    发明人： CHING-KUN CHEN ,  GUO-ZHEN WANG

    IPC分类号： G08B29/20 ,  G08B17/103 ,  G08B25/00 ,  G08B29/18

    CPC分类号： G08B29/20 ,  G08B17/103 ,  G08B29/185 ,  G08B25/008

    摘要： There is provided a fire alarm device including multiple light sources, a light sensor, a first processor and a second processor. In a standby mode, the first processor identifies whether to wake up the second processor according to a detection result of the light sensor obtained by detecting emission light of one of the multiple light sources. The second processor identifies whether to generate an alarm according to a detection result of the light sensor obtained by detecting emission light of the multiple light sources. The fire alarm device further includes a thermal sensor for providing detected temperature values to the first processor and/or the second processor to perform the identifying procedure.

    FORCE SENSING METHOD, FORCE SENSING SYSTEM AND FORCE SENSOR CALIBRATION METHOD
    8.
    发明公开
    FORCE SENSING METHOD, FORCE SENSING SYSTEM AND FORCE SENSOR CALIBRATION METHOD 审中-公开

    公开(公告)号：US20240230435A1

    公开(公告)日：2024-07-11

    申请号：US18616202

    申请日：2024-03-26

    申请人： PixArt Imaging Inc.

    发明人： Ming-Hung Tsai ,  Chun-Yang Chen ,  Yen-Po Chen

    IPC分类号： G01L1/26 ,  G01L25/00 ,  G06F3/041

    CPC分类号： G01L1/26 ,  G01L25/00 ,  G06F3/0414 ,  G06F3/0418

    摘要： A force sensing method, applied to a force sensing system comprising a plurality of force sensors and a touch sensing surface, comprising: (a) determining a first location of a first object on the touch sensing surface; (b) defining a first force sensing region according to the first location; and (c) computing a first system sensing force which the first object causes to the touch sensing surface according to the first location, and according to at least one sensor sensing force of a first part of the force sensors corresponding to the first force sensing region. The present invention also discloses a force sensing system which uses the above-mentioned force sensing method, and an efficient force sensor calibration method. Noises can be reduced and power consumption can be decreased, since only sensor sensing forces of force sensors near the object are used for computing the system sensing force.