公开(公告)号：US10379627B2

公开(公告)日：2019-08-13

申请号：US15687525

申请日：2017-08-27

Applicant: PIXART IMAGING INC.

Inventor： Han-Ping Cheng ,  Chao-Chien Huang

IPC: G06F3/03 ,  G06F3/038 ,  G06F3/0346

Abstract: A positioning method and a handheld device for performing the method are disclosed. In the method, a handheld device captures images corresponding to positions of a reference when the handheld device points toward the reference. A first image position, a first tilt angle indicative of a rotation angle of the handheld device, and a first pointing coordinate of the reference can obtained. A second pointing coordinate according to the first image position and a second tilt angle are obtained. Therefore, a first displacement vector between the first pointing coordinate and the second pointing coordinate can be computed. A third pointing coordinate can also be obtained. When a substantial movement of the positions of the reference revealed in the images captured by the handheld device is found, an output pointing coordinate is obtained. The output can be outputting a cursor parameter for controlling a cursor controlled by the handheld device.

公开(公告)号：US09459140B2

公开(公告)日：2016-10-04

申请号：US14195862

申请日：2014-03-04

Applicant: PixArt Imaging Inc.

Inventor： Han-Ping Cheng ,  Chia-Cheun Liang ,  Ming-Tsan Kao

IPC: G01J1/10 ,  H04N1/00 ,  G01J1/44 ,  G01J1/42

CPC classification number: G01J1/10 ,  G01J1/4228 ,  G01J2001/4242 ,  G01J2001/444 ,  H04N1/00

Abstract: A method of an optical detecting device for synchronizing an exposure timing sequence of an image detector with a light emitting timing sequence of a reference light source is disclosed. The method includes capturing a continued image set according to a predetermined period, analyzing intensity variation of the continued image set, and adjusting the exposure timing sequence of an image detector according to the intensity variation, so as to synchronize the exposure timing sequence of the image detector with the light emitting timing sequence of the reference light source.

Abstract translation: 公开了一种用于使图像检测器的曝光定时序列与参考光源的发光定时序列同步的光学检测装置的方法。 该方法包括根据预定时段捕获连续图像集，分析连续图像集合的强度变化，以及根据强度变化调整图像检测器的曝光定时序列，以使图像的曝光定时序列同步 检测器具有参考光源的发光定时序列。

公开(公告)号：US09423893B2

公开(公告)日：2016-08-23

申请号：US14149115

申请日：2014-01-07

Applicant: PIXART IMAGING INC.

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

IPC: G09G5/00 ,  G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/03547 ,  G06F3/04883 ,  G06F2203/04101

Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.

Abstract translation: 提供了包括两个线性图像传感器阵列和处理单元的手势检测装置。 处理单元被配置为在相同周期或不同周期中比较由两个线性图像传感器阵列捕获的图像帧中的指针图像的大小，以便识别点击事件。

公开(公告)号：US09304607B2

公开(公告)日：2016-04-05

申请号：US14318627

申请日：2014-06-28

Applicant: PIXART IMAGING INC.

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

IPC: G09G5/00 ,  G06F3/0346 ,  G06F3/03 ,  G06F3/038 ,  G06F3/0481

CPC classification number: G06F3/0346 ,  G06F3/0325 ,  G06F3/038 ,  G06F3/04812 ,  G06F2203/0384

Abstract: A pointer positioning method of a handheld pointer device, which includes capturing a first image frame containing a reference point to compute a first pointing coordinate according to the image position of the reference point in the first image frame; generating a cursor parameter of a cursor according to the first pointing coordinate; when the handheld pointer device enters a pointer-lock mode, records the first pointing coordinate and positions the cursor at the first pointing coordinate on a display apparatus; when the handheld pointer device exits the pointer-lock mode, captures a second image frame to compute a second pointing coordinate according to the image position of the reference point in the second image frame to obtain a displacement vector between the first and the second pointing coordinates; generating the cursor parameter and controlling the movement of the cursor according to the displacement vector and the first pointing coordinate.

Abstract translation: 一种手持式指针装置的指针定位方法，其特征在于，包括拍摄包含基准点的第一图像帧，根据所述参照点在所述第一图像帧中的图像位置来计算第一指示坐标; 根据第一指向坐标生成光标的光标参数; 当手持式指针装置进入指针锁定模式时，记录第一指示坐标并将光标定位在显示装置上的第一指向坐标处; 当手持指针装置退出指针锁定模式时，根据第二图像帧中的参考点的图像位置捕获第二图像帧以计算第二指示坐标，以获得第一和第二指示坐标之间的位移矢量 ; 生成光标参数，并根据位移矢量和第一指向坐标来控制光标的移动。

公开(公告)号：US09200894B2

公开(公告)日：2015-12-01

申请号：US13771098

申请日：2013-02-20

Applicant: PixArt Imaging Inc.

Inventor： Shu-Sian Yang ,  Han-Ping Cheng

IPC: G01B11/14 ,  G06F3/03 ,  G06F3/0354

CPC classification number: G01B11/14 ,  G06F3/0321 ,  G06F3/03542

Abstract: A position detecting system with a position information providing apparatus, a transceiver, and a processor. The position information providing apparatus comprises a light emitting-out side having at least one position information region distributed on an outer surface of the light emitting-out side. The position information region comprises materials which are distributed on the outer surface and provide the position information. The light has position information from the position information region when the light emits out from at least part of the light emitting-out side. The transceiver receives the light with the position information. The processor determines a relative position between the transceiver and the position information providing apparatus according to the position information received by the transceiver.

Abstract translation: 具有位置信息提供装置，收发器和处理器的位置检测系统。 位置信息提供装置包括具有分布在发光侧的外表面上的至少一个位置信息区域的发光侧。 位置信息区域包括分布在外表面上并提供位置信息的材料。 当光从发光侧的至少一部分发出时，光具有来自位置信息区域的位置信息。 收发器用位置信息接收光。 处理器根据收发机接收到的位置信息来确定收发器和位置信息提供装置之间的相对位置。

公开(公告)号：US09134812B2

公开(公告)日：2015-09-15

申请号：US13846217

申请日：2013-03-18

Applicant: PixArt Imaging Inc.

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

IPC: G06F3/03 ,  G06K9/32 ,  G06K9/38

CPC classification number: G06F3/0304 ,  G06F3/0325 ,  G06K9/3241 ,  G06K9/38

Abstract: There is provided an image positioning method including the steps of: capturing an image frame with an image sensor; identifying at least on object image in the image frame; comparing an object image size of the object image with a size threshold and identifying the object image having the object image size larger than the size threshold as a reference point image; and positioning the reference point image. There is further provided an interactive imaging system.

Abstract translation: 提供一种图像定位方法，包括以下步骤：用图像传感器捕获图像帧; 至少识别图像帧中的对象图像; 将对象图像的对象图像尺寸与尺寸阈值进行比较，并将具有大于尺寸阈值的对象图像尺寸的对象图像识别为参考点图像; 并定位参考点图像。 还提供了一种交互式成像系统。

公开(公告)号：US20140210715A1

公开(公告)日：2014-07-31

申请号：US14149115

申请日：2014-01-07

Applicant: PIXART IMAGING INC.

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

IPC: G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/03547 ,  G06F3/04883 ,  G06F2203/04101

Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.