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    Wearable device and portable system having higher security
    21.
    发明授权
    Wearable device and portable system having higher security 有权

    公开(公告)号：US11194896B2

    公开(公告)日：2021-12-07

    申请号：US17113247

    申请日：2020-12-07

    Applicant: PixArt Imaging Inc.

    Inventor： Yi-Hsien Ko ,  Ren-Hau Gu

    IPC: G06F21/32 ,  H04W12/30 ,  G06F1/16

    Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, share an authenticated state in response to a request from an electronic device when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and stop sharing the authenticated state when the skin sensor determines that the wearable device leaves the skin surface during the sharing.

    Touch device with adjustable grid distance
    23.
    发明授权
    Touch device with adjustable grid distance 有权

    公开(公告)号：US10055054B2

    公开(公告)日：2018-08-21

    申请号：US15727001

    申请日：2017-10-06

    Applicant: PixArt Imaging Inc.

    Inventor： Han-Shu Lin ,  Yi-Hsien Ko

    IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045

    CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F3/045

    Abstract: There is provided a touch display device including a display and a touch control device. The display includes a glass substrate. The touch control device is attached to the glass substrate and includes a touch zone, a fingerprint detection zone and a control circuit. The touch zone includes a matrix of first detecting cells arranged at a first grid distance. The fingerprint detection zone includes a matrix of second detecting cells arranged at a second grid distance. The control circuit is configured to control detection operations of the touch zone and the fingerprint detection zone and to adjust an effective grid distance of the fingerprint detection zone according to a first detected touch position.

    Optical object recognition system
    24.
    发明授权
    Optical object recognition system 有权

    公开(公告)号：US09933863B2

    公开(公告)日：2018-04-03

    申请号：US13905672

    申请日：2013-05-30

    Applicant: PIXART IMAGING INC.

    Inventor： Chia-Cheun Liang ,  Yi-Hsien Ko ,  Han-Ping Cheng

    IPC: G06F3/033 ,  G06F3/03

    CPC classification number: G06F3/033 ,  G06F3/0325

    Abstract: An optical object recognition system includes at least two beacons, an image sensor and a processing unit. The beacons operate in an emission pattern and the emission pattern of the beacons has a phase shift from each other. The image sensor captures image frames with a sampling period. The processing unit is configured to recognize different beacons according to the phase shift of the emission pattern in the image frames.

    Adapted mobile carrier and auto following system
    26.
    发明授权
    Adapted mobile carrier and auto following system 有权

    公开(公告)号：US09599988B2

    公开(公告)日：2017-03-21

    申请号：US14450377

    申请日：2014-08-04

    Applicant: PIXART IMAGING INC.

    Inventor： Chia-Cheun Liang ,  Ming-Tsan Kao ,  Yi-Hsien Ko ,  Hsin-Chia Chen

    IPC: H04N7/18 ,  G08G1/16 ,  G06K9/00 ,  G05D1/02

    CPC classification number: G05D1/0246

    Abstract: There is provided a mobile carrier and an auto following system using the mobile carrier. The mobile carrier is capable of capturing at least an image of a guiding light source and automatically following the guiding light source based on the captured image of the guiding light source. The mobile carrier is further disposed with a mobile light source for a remote image sensing device to capture an image of the mobile light source while the mobile carrier cannot capture the image of the guiding light source, so that the mobile carrier can be guided by a control signal provided according to the captured image of the mobile light source.

    Optical detecting device and related method of synchronization adjustment
    27.
    发明授权
    Optical detecting device and related method of synchronization adjustment 有权
    光学检测装置及相关方法的同步调整

    公开(公告)号：US09049333B2

    公开(公告)日：2015-06-02

    申请号：US14198547

    申请日：2014-03-05

    Applicant: PixArt Imaging Inc.

    Inventor： Ming-Tsan Kao ,  Hsin-Chi Cheng ,  Yi-Hsien Ko

    IPC: H04N1/04 ,  H04N1/028

    CPC classification number: H04N1/02815 ,  G06F3/03542 ,  G06F3/0416 ,  G06F3/042 ,  H04N1/40056 ,  H04N5/2353 ,  H04N5/2357

    Abstract: A method of synchronization adjustment is applied to an optical detecting device, so as to synchronize an exposure timing sequence of an image detector with a light emitting timing sequence of an indicating light source. The method includes acquiring a continued image set, analyzing intensity of each image of the continued image set, and adjusting the exposure timing sequence according to duty cycle of the image detector and intensity ratio of at least two images. An exposure frequency of the image detector is greater than a flickering frequency of the indicating light source.

    Abstract translation: 将同步调整的方法应用于光学检测装置，以使图像检测器的曝光定时序列与指示光源的发光定时序列同步。 该方法包括获取连续图像集合，分析连续图像集合的每个图像的强度，以及根据图像检测器的占空比和至少两个图像的强度比调整曝光时序。 图像检测器的曝光频率大于指示光源的闪烁频率。

    OPTICAL TOUCH DEVICE AND RELATED IMAGE DETECTING COMPONENT AND LOCATING METHOD
    28.
    发明申请
    OPTICAL TOUCH DEVICE AND RELATED IMAGE DETECTING COMPONENT AND LOCATING METHOD 有权
    光触摸装置及相关图像检测元件及定位方法

    公开(公告)号：US20140184571A1

    公开(公告)日：2014-07-03

    申请号：US14195824

    申请日：2014-03-03

    Applicant: PixArt Imaging Inc.

    Inventor： Tzung-Min Su ,  Yi-Hsien Ko ,  Hsin-Chi Cheng ,  Ming-Tsan Kao

    IPC: G06F3/042

    CPC classification number: G06F3/0428 ,  G06F3/0421

    Abstract: A locating method applied to an optical touch device is disclosed. The optical touch device includes at least one image detecting component for detecting an imaging position of an object and generating a touch position of the object on a plane according to the imaging position. The at least one image detecting component includes a plurality of pixels. The locating method includes dividing the pixels into a first group and a second group along a first direction, analyzing dimension ratios of a darkness point respectively relative to the first group and the second group when the darkness point formed by the object is simultaneously detected by the first group and the second group, and calculating the imaging position of the darkness point inside the image detecting component according to the dimension ratios.

    Abstract translation: 公开了一种应用于光学触摸装置的定位方法。 光学触摸装置包括至少一个图像检测部件，用于检测物体的成像位置，并根据成像位置在平面上产生物体的触摸位置。 所述至少一个图像检测部件包括多个像素。 定位方法包括沿着第一方向将像素分成第一组和第二组，当由对象形成的暗点同时检测时，分析相对于第一组和第二组的暗点的尺寸比例 第一组和第二组，并且根据尺寸比计算图像检测部件内的暗点的成像位置。

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