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    Pupil detection device
    12.
    发明授权
    Pupil detection device 有权
    瞳孔检测装置

    公开(公告)号：US09530051B2

    公开(公告)日：2016-12-27

    申请号：US14054724

    申请日：2013-10-15

    Applicant: PixArt Imaging Inc.

    Inventor： Yu-Hao Huang ,  Ming-Tsan Kao ,  Yi-Fang Lee ,  En-Feng Hsu ,  Meng-Huan Hsieh ,  Nien-Tse Chen

    IPC: G06K9/00

    CPC classification number: G06K9/00604 ,  G06F3/013 ,  H04N5/2354

    Abstract: There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.

    Abstract translation: 提供了一种包括主动光源，图像传感器和处理单元的光瞳跟踪装置。 主动光源以第一亮度值和第二亮度值交替地向眼球发光。 图像传感器捕获对应于第一亮度值的第一亮度图像和对应于第二亮度值的第二亮度图像。 处理单元将第一亮度图像和第二亮度图像的相应位置处的最亮区域识别为活动光图像。

    Brightness control method of portable device and portable device using the same
    13.
    发明授权
    Brightness control method of portable device and portable device using the same 有权

    公开(公告)号：US12254845B2

    公开(公告)日：2025-03-18

    申请号：US18208893

    申请日：2023-06-13

    Applicant: PixArt Imaging Inc.

    Inventor： En-Feng Hsu ,  Meng-Huan Hsieh

    IPC: G09G3/00 ,  G09G3/34 ,  G09G3/36

    Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

    Backlight control method and cell phone using the same
    15.
    发明授权
    Backlight control method and cell phone using the same 有权

    公开(公告)号：US10685606B2

    公开(公告)日：2020-06-16

    申请号：US16735745

    申请日：2020-01-07

    Applicant: PixArt Imaging Inc.

    Inventor： En-Feng Hsu ,  Meng-Huan Hsieh

    IPC: H04M1/00 ,  G09G3/34 ,  G09G3/36

    Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

    Device and method for determining gesture and operation method of gesture determining device
    17.
    发明授权
    Device and method for determining gesture and operation method of gesture determining device 有权
    用于确定姿势确定装置的手势和操作方法的装置和方法

    公开(公告)号：US09104910B2

    公开(公告)日：2015-08-11

    申请号：US13900503

    申请日：2013-05-22

    Applicant: PixArt Imaging Inc.

    Inventor： Yu-Hao Huang ,  Ming-Tsan Kao ,  Sen-Huang Huang ,  Nien-Tse Chen ,  En-Feng Hsu ,  Meng-Huan Hsieh ,  Yi-Yuan Chen

    IPC: G06K9/00 ,  G06F3/01

    CPC classification number: G06K9/00389 ,  G06F3/017 ,  G06K9/00335 ,  G06K9/00355 ,  G06T2207/30196

    Abstract: A device for determining a gesture includes a light emitting unit, an image sensing device and a processing circuit. The light emitting unit emits a light beam. The image sensing device captures an image of a hand reflecting the light beam. The processing circuit obtains the image and determine a gesture of the hand by performing an operation on the image; wherein the operation includes: selecting pixels in the image having a brightness greater than or equal to a brightness threshold; sorting the selected pixels; selecting a first predetermined percentage of pixels from the sorted pixels; dividing the adjacent pixels in the first predetermined percentage of pixels into a same group; and determining the gesture of the hand according to the number of groups of pixels. A method for determining a gesture and an operation method of the aforementioned device are also provided.

    Abstract translation: 用于确定手势的装置包括发光单元，图像感测装置和处理电路。 发光单元发射光束。 图像感测装置捕获反射光束的手的图像。 处理电路通过对图像执行操作来获得图像并确定手势， 其中所述操作包括：选择具有大于或等于亮度阈值的亮度的图像中的像素; 对所选择的像素进行排序; 从分类像素中选择第一预定百分比的像素; 将第一预定百分比的像素中的相邻像素划分为相同组; 以及根据像素组的数量确定手的手势。 还提供了一种用于确定上述装置的手势和操作方法的方法。

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