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    Handheld pointer device and tilt angle adjustment method thereof
    1.
    发明授权
    Handheld pointer device and tilt angle adjustment method thereof 有权

    公开(公告)号：US10067576B2

    公开(公告)日：2018-09-04

    申请号：US14273523

    申请日：2014-05-08

    Applicant: PIXART IMAGING INC.

    Inventor： Han-Ping Cheng ,  Chao-Chien Huang ,  Chia-Cheun Liang

    IPC: G06F3/033 ,  G06F3/01 ,  G06F3/03 ,  G06F3/0346

    Abstract: An exemplary embodiment of the present disclosure provides a handheld pointer device and a tilt angle adjustment method thereof. The tilt angle adjustment method includes the following steps. Images corresponding to the position of a reference point are captured as the handheld pointer device pointing toward the reference point to generate a plurality of frames. Whether the reference point has substantially moved is subsequently determined based on the plurality of frames. When determines that the reference point has not substantially moved, causes an accelerometer unit of the handheld pointer device to detect the accelerations thereof over various axes so as to update a first tilt angle being used currently to a second tilt angle, accordingly. The handheld pointer device may thus accurately and efficiently calculate the relative position of the reference point with the appropriate tilt angle of the handheld pointer device used.

    Optical pointing system
    3.
    发明授权
    Optical pointing system 有权
    光学指向系统

    公开(公告)号：US09323347B2

    公开(公告)日：2016-04-26

    申请号：US14094988

    申请日：2013-12-03

    Applicant: PIXART IMAGING INC.

    Inventor： Chia-Cheun Liang

    IPC: G06F3/041 ,  G06F3/03 ,  G06F3/0346 ,  G06K9/46

    CPC classification number: G06F3/0325 ,  G06F3/0304 ,  G06F3/033 ,  G06F3/0346 ,  G06F3/041 ,  G06K9/46 ,  G06K9/4661 ,  G06K9/52 ,  G06K9/6201 ,  G06K2009/4666 ,  G06T7/0042 ,  G06T7/60

    Abstract: There is provided an optical pointing system including at least one reference beacon, an image sensor, a storage unit and a processing unit. The image sensor is configured to capture an image frame containing a beacon image associated with the at least one reference beacon. The storage unit is configured to save image data of at least one object image in the image frame. The processing unit is configured to sequentially process every pixel of the image frame for identifying the object image and real-timely remove or merge the image data, saved in the storage unit, associated with two object images within a pixel range of the image frame thereby reducing the used memory space.

    Abstract translation: 提供了一种包括至少一个参考信标，图像传感器，存储单元和处理单元的光学指向系统。 图像传感器被配置为捕获包含与至少一个参考信标相关联的信标图像的图像帧。 存储单元被配置为保存图像帧中的至少一个对象图像的图像数据。 处理单元被配置为顺序地处理用于识别对象图像的图像帧的每个像素，并且实时地去除或合并保存在存储单元中的与图像帧的像素范围内的两个对象图像相关联的图像数据，由此 减少使用的内存空间。

    Remote device and power saving method of interactive system
    4.
    发明授权
    Remote device and power saving method of interactive system 有权
    交互式系统的远程设备和省电方式

    公开(公告)号：US09304574B2

    公开(公告)日：2016-04-05

    申请号：US13937920

    申请日：2013-07-09

    Applicant: PixArt Imaging Inc.

    Inventor： Ming-Tsan Kao ,  Chia-Cheun Liang

    IPC: G06F1/32 ,  G06F3/03 ,  G06F3/0346 ,  G06F3/038 ,  G06F3/0354

    CPC classification number: G06F1/3259 ,  G06F1/3206 ,  G06F3/0325 ,  G06F3/0346 ,  G06F3/03542 ,  G06F3/0386 ,  Y02D10/155

    Abstract: A remote device includes an image sensor, a readout circuit and a processing unit. The image sensor successively captures a first image and a second image containing at least one reference beacon image. The readout circuit is configured to read first image data of the first image and second image data of the second image from the image sensor. The processing unit is configured to calculate an image feature of the at least one reference beacon image according to the first image data and control the readout circuit to only read the second image data of a range of interest in the second image according to the image feature. There is further provided a power saving method of an interactive system.

    Abstract translation: 远程设备包括图像传感器，读出电路和处理单元。 图像传感器连续地捕获包含至少一个参考信标图像的第一图像和第二图像。 读出电路被配置为从图像传感器读取第一图像的第一图像数据和第二图像的第二图像数据。 处理单元被配置为根据第一图像数据计算至少一个参考信标图像的图像特征，并且控制读出电路，以仅根据图像特征仅读取第二图像中的感兴趣范围的第二图像数据 。 还提供了一种交互式系统的省电方法。

    Interactive system and remote device
    5.
    发明授权
    Interactive system and remote device 有权

    公开(公告)号：US10114473B2

    公开(公告)日：2018-10-30

    申请号：US13926337

    申请日：2013-06-25

    Applicant: PixArt Imaging Inc

    Inventor： Chi-Yang Huang ,  Chia-Cheun Liang ,  Chao-Chien Huang ,  Han-Ping Cheng ,  Ming-Tsan Kao

    IPC: G06F3/03 ,  G06F3/0354

    Abstract: An interactive system includes a display, a processor and a remote controller. The display includes at least one reference beacon for providing light with a predetermined feature. The remote controller includes an image sensor configured to capture an image containing the reference beacon and calculates an aiming coordinate according to an imaging position of the reference beacon in the captured image. The processor calculates a scale ratio of a pixel size of the display with respect to that of the image captured by the image sensor and moves a cursor position according to the scale ratio and the aiming coordinate.

    IMAGE DETERMINING METHOD AND OBJECT COORDINATE COMPUTING APPARATUS
    7.
    发明申请
    IMAGE DETERMINING METHOD AND OBJECT COORDINATE COMPUTING APPARATUS 审中-公开
    图像确定方法和对象坐标计算装置

    公开(公告)号：US20160364627A1

    公开(公告)日：2016-12-15

    申请号：US15212281

    申请日：2016-07-17

    Applicant: PixArt Imaging Inc.

    Inventor： Chia-Cheun Liang ,  Shu-Sian Yang ,  Yi-Hsien Ko

    IPC: G06K9/62 ,  G06K9/46 ,  G06K9/34

    CPC classification number: G06K9/62 ,  G06K9/342 ,  G06K9/4604 ,  G06K9/4642 ,  G06K9/6201 ,  G06T7/11 ,  G06T7/136

    Abstract: An image determining method for scanning an image and determining specific image pixels of a specific image. The method comprises: determining at least one pixel in a first row having brightness value larger than a threshold value as the specific image pixel; defining a leftmost pixel and a rightmost pixel of the specific image pixel in the first row as a leftmost edge and a rightmost edge of a first specific image range; and defining a second specific image range in a second row of the image, which is next to the first row. Column positions of a leftmost edge and a rightmost edge of the second specific image range are respectively the same with column positions of the leftmost edge and the rightmost edge of the first specific image range. Via this method, the determining for the specific image pixels is more accurate.

    Abstract translation: 一种用于扫描图像并确定特定图像的特定图像像素的图像确定方法。 该方法包括：将具有大于阈值的亮度值的第一行中的至少一个像素确定为特定图像像素; 将所述第一行中的特定图像像素的最左边像素和最右边像素定义为第一特定图像范围的最左边缘和最右边缘; 以及在第一行旁边的图像的第二行中定义第二特定图像范围。 第二特定图像范围的最左边缘和最右边缘的列位置分别与第一特定图像范围的最左边缘和最右边缘的列位置相同。 通过该方法，对于特定图像像素的确定更准确。

    Hand-held pointing device and operation method thereof
    8.
    发明授权
    Hand-held pointing device and operation method thereof 有权
    手持式定位装置及其操作方法

    公开(公告)号：US09369751B2

    公开(公告)日：2016-06-14

    申请号：US14033354

    申请日：2013-09-20

    Applicant: PIXART IMAGING INC.

    Inventor： Chia-Cheun Liang ,  Chi-Yang Huang ,  Chih-Yen Wu ,  Wen-Yu Yang

    IPC: H04N21/422 ,  G06F3/0354 ,  G06F3/03 ,  G06F3/0346

    CPC classification number: H04N21/42204 ,  G06F3/0304 ,  G06F3/0346 ,  G06F3/03542 ,  H04N21/422 ,  H04N21/42206 ,  H04N21/42207 ,  H04N21/42219 ,  H04N21/42221 ,  H04N21/42222

    Abstract: A hand-held pointing device includes a main body, a processing circuit, a light emitting device and two image sensing devices. The main body has a first surface and a second surface for lying on an operating surface. The two image sensing devices are disposed in the main body and configured to sense first and second images through first and second transparent areas thereof, respectively. The light emitting device, disposed in the main body, is configured to emit a light source through the second transparent area. The processing circuit is configured to determine and operate the hand-held pointing device in a remote controller mode or a mouse mode according to whether the first image contains an image of a reference light source and/or the second image contains an image of the operating surface reflecting the light source. An operation for a hand-held pointing device is also provided.

    Abstract translation: 手持指示装置包括主体，处理电路，发光装置和两个图像感测装置。 主体具有第一表面和用于躺在操作表面上的第二表面。 两个图像感测装置设置在主体中并且被配置为分别通过其第一和第二透明区域感测第一和第二图像。 设置在主体中的发光装置被配置为通过第二透明区域发射光源。 处理电路被配置为根据第一图像是否包含参考光源的图像和/或第二图像包含操作的图像来确定和操作遥控器模式或鼠标模式中的手持指示设备 表面反射光源。 还提供了一种用于手持式定点设备的操作。

    IMAGE DETERMINING METHOD AND OBJECT COORDINATE COMPUTING APPARATUS
    9.
    发明申请
    IMAGE DETERMINING METHOD AND OBJECT COORDINATE COMPUTING APPARATUS 审中-公开
    图像确定方法和对象坐标计算装置

    公开(公告)号：US20140044308A1

    公开(公告)日：2014-02-13

    申请号：US13789591

    申请日：2013-03-07

    Applicant: PIXART IMAGING INC.

    Inventor： Chia-Cheun Liang ,  Shu-Sian Yang ,  Yi-Hsien Ko

    IPC: G06K9/62

    CPC classification number: G06K9/62 ,  G06K9/3241 ,  G06K9/342 ,  G06K9/4604 ,  G06K9/4642 ,  G06K9/6201 ,  G06T7/11 ,  G06T7/136

    Abstract: An image determining method, for determining which pixels in an image are specific image pixels of a specific image, comprising: (a) determining which pixels in the image have brightness values larger than a threshold value; (b) determining the pixels having brightness values larger than the threshold value as the specific image pixels; and determining pixels in a predetermined range of at least one the specific image pixel as the specific image pixels as well.

    Abstract translation: 一种图像确定方法，用于确定图像中的哪些像素是特定图像的特定图像像素，包括：（a）确定图像中的哪些像素具有大于阈值的亮度值; （b）确定具有大于阈值的亮度值的像素作为特定图像像素; 以及将所述特定图像像素中的至少一个的预定范围中的像素确定为所述特定图像像素。

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