公开(公告)号：US09092063B2

公开(公告)日：2015-07-28

申请号：US13926724

申请日：2013-06-25

Applicant: PIXART IMAGING INC.

Inventor： Ming Tsan Kao ,  Shu Sian Yang ,  Han Ping Cheng

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/042

CPC classification number: G06F3/017 ,  G06F3/0418 ,  G06F3/0421 ,  G06F3/0425 ,  G06K9/00355

Abstract: An electronic system incorporates an image-sensing device and a processor coupled with the image-sensing device. The image-sensing device includes an image-sensing area configured to generate a picture. The picture includes a noisy region. The processor is configured to select a tracking region from the portion of the picture outside of the noisy region. The tracking region corresponds to an operative region of the image sensing area.

Abstract translation: 电子系统包括图像感测装置和与图像感测装置耦合的处理器。 图像感测装置包括被配置为生成图像的图像感测区域。 图片包括一个嘈杂的地区。 处理器被配置为从噪声区域外的图像的部分中选择跟踪区域。 跟踪区域对应于图像感测区域的操作区域。

公开(公告)号：US09766753B2

公开(公告)日：2017-09-19

申请号：US13841385

申请日：2013-03-15

Applicant: PIXART IMAGING INC.

Inventor： Tzung Min Su ,  Ming Tsan Kao ,  Chun-Sheng Lin ,  Chih Hsin Lin ,  Yi Hsien Ko

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/042 ,  G06F3/0416 ,  G06F3/0428 ,  G06F2203/04104

Abstract: The present invention discloses embodiments for an optical touch systems and methods. One embodiment of the present invention is directed to an optical touch system that includes at least two image sensors configured to detect a plurality of objects over a touch surface to generate a plurality of object images; a plurality of first light receiving elements, wherein the first light receiving elements are arranged on a side of the touch surface along a first direction and are configured to detect the objects; and a processing unit configured to calculate a plurality of candidate coordinate data, based on the object images, and select the coordinate data that represents coordinate data of the objects from the candidate coordinate data, based on detection data of the first light receiving elements.

公开(公告)号：US09684840B2

公开(公告)日：2017-06-20

申请号：US13926560

申请日：2013-06-25

Applicant: PIXART IMAGING INC.

Inventor： Yu Hao Huang ,  En Feng Hsu ,  Ming Tsan Kao

IPC: H04N5/33 ,  H04N9/04 ,  G06K9/20 ,  H04N5/222 ,  H04N5/225 ,  G06K9/00

CPC classification number: G06T7/194 ,  G02B7/09 ,  G02B7/36 ,  G03B13/30 ,  G06K9/00355 ,  G06K9/2027 ,  G06T7/174 ,  G06T7/571 ,  H04N5/2226 ,  H04N5/2256 ,  H04N5/23296

Abstract: A detection system comprises a light source configured to illuminate an object, an image sensor configured to receive light reflected from the object, and a processor. The image sensor generates a first picture when the light source is turned on. The image sensor generates a second picture when the light source is turned off. The processor is configured to subtract the second picture from the first picture for determining an object image produced by the object.

公开(公告)号：US20140035879A1

公开(公告)日：2014-02-06

申请号：US13841385

申请日：2013-03-15

Applicant: PIXART IMAGING INC.

Inventor： Tzung Min Su ,  Ming Tsan Kao ,  Chun-Sheng Lin ,  Chih Hsin Lin ,  Yi Hsien Ko

IPC: G06F3/042

CPC classification number: G06F3/042 ,  G06F3/0416 ,  G06F3/0428 ,  G06F2203/04104

Abstract: The present invention discloses embodiments for an optical touch systems and methods. One embodiment of the present invention is directed to an optical touch system that includes at least two image sensors configured to detect a plurality of objects over a touch surface to generate a plurality of object images; a plurality of first light receiving elements, wherein the first light receiving elements are arranged on a side of the touch surface along a first direction and are configured to detect the objects; and a processing unit configured to calculate a plurality of candidate coordinate data, based on the object images, and select the coordinate data that represents coordinate data of the objects from the candidate coordinate data, based on detection data of the first light receiving elements.

Abstract translation: 本发明公开了用于光学触摸系统和方法的实施例。 本发明的一个实施例涉及一种光学触摸系统，其包括被配置为在触摸表面上检测多个对象以产生多个对象图像的至少两个图像传感器; 多个第一光接收元件，其中所述第一光接收元件沿着第一方向布置在所述触摸表面的一侧上，并且被配置为检测所述物体; 以及处理单元，被配置为基于对象图像计算多个候选坐标数据，并且基于第一光接收元件的检测数据从候选坐标数据中选择表示对象的坐标数据的坐标数据。