公开(公告)号：US20090195500A1

公开(公告)日：2009-08-06

申请号：US12216816

申请日：2008-07-11

Applicant: I-Ming Huang ,  Chin-Kang Chang ,  Ching-Chun Chiang ,  Hsin-Hung Lee ,  Yun-Cheng Liu

Inventor： I-Ming Huang ,  Chin-Kang Chang ,  Ching-Chun Chiang ,  Hsin-Hung Lee ,  Yun-Cheng Liu

IPC: G06F3/033

CPC classification number: G06F3/0418 ,  G06F3/0425

Abstract: A coordinate determining system is disclosed. The coordinate determining system comprises an image capturing module, a dividing module, a determining module, and a converting module. The image capturing module is used for capturing a plurality of images corresponding to the screen. The dividing module is used for dividing an overlapping image region of the images into a target image comprising a plurality of sub-regions. The determining module is used for determining a position of the indicating point on the target image. If the indicating point is in a target sub-region among the sub-regions and has an image coordinate relative to an original of the target sub-region, the converting module will convert the image coordinate into the screen coordinate according to a proportional parameter.

Abstract translation: 公开了坐标确定系统。 坐标确定系统包括图像捕获模块，分割模块，确定模块和转换模块。 图像捕获模块用于捕获与屏幕相对应的多个图像。 分割模块用于将图像的重叠图像区域划分为包括多个子区域的目标图像。 确定模块用于确定目标图像上的指示点的位置。 如果指示点在子区域中的目标子区域中并且具有相对于目标子区域的原始图像坐标，则转换模块将根据比例参数将图像坐标转换为屏幕坐标。

公开(公告)号：US20080309619A1

公开(公告)日：2008-12-18

申请号：US11987087

申请日：2007-11-27

Applicant: Chee-Chun Leung ,  Yun-Cheng Liu ,  Ching-Chun Chiang ,  Maw-Lin Hsu

Inventor： Chee-Chun Leung ,  Yun-Cheng Liu ,  Ching-Chun Chiang ,  Maw-Lin Hsu

IPC: G06F3/033

CPC classification number: G06F3/0386 ,  G06F3/03542

Abstract: The invention discloses a cursor control method applied to a presentation system. The presentation system comprises a computer, an imaging plane, an optical pointer, a camera, and a projector. The projector is a mobile or built-in projector of the computer for projecting output from the computer onto the imaging plane, wherein the output of the computer comprises an internal cursor generated by the computer. The optical pointer is used for projecting an external cursor onto the imaging plane. The camera is a mobile or built-in camera of the computer for capturing an image of the imaging plane. After capturing the image, a processor of the computer detects both a first position of the external cursor and a second position of the internal cursor corresponding to the image, calculates a shift vector between the first and second positions, and moves the internal cursor based on the shift vector.

Abstract translation: 本发明公开了一种应用于呈现系统的光标控制方法。 呈现系统包括计算机，成像平面，光学指针，照相机和投影仪。 投影仪是计算机的移动或内置投影仪，用于将计算机的输出投影到成像平面上，其中计算机的输出包括由计算机产生的内部光标。 光学指针用于将外部光标投影到成像平面上。 相机是用于捕获成像平面图像的计算机的移动或内置相机。 在拍摄图像之后，计算机的处理器检测外部光标的第一位置和对应于图像的内部光标的第二位置，计算第一和第二位置之间的移动向量，并且基于 移位矢量。

公开(公告)号：US20100207910A1

公开(公告)日：2010-08-19

申请号：US12465180

申请日：2009-05-13

Applicant: Yun-Cheng LIU ,  Ching-Chun CHIANG ,  Bo-Yi WU

Inventor： Yun-Cheng LIU ,  Ching-Chun CHIANG ,  Bo-Yi WU

IPC: G06F3/042

CPC classification number: G06F3/0416 ,  G06F3/0421

Abstract: The invention discloses an optical sensing screen for selectively sensing an object and a light pen. A first photo-emitter is disposed in a light pen for emitting a first light. The optical sensing screen includes a panel, an illuminating device, at least two first photo-sensing devices, and a processor. The illuminating device is used to form a background light source. The first photo-sensing devices are used to detect the first light and the background light source. The processor is capable of calculating the coordinate of the object according to the interdicted background light source. When any of the first photo-sensing devices detects the light pen, the processor will drive the illuminating device not to form the background light source and to calculate the coordinate of the first photo-emitter according to the detected first light.

Abstract translation: 本发明公开了一种用于选择性地感测物体和光笔的光学感测屏。 第一光发射器设置在用于发射第一光的光笔中。 光学感测屏幕包括面板，照明装置，至少两个第一感光装置和处理器。 照明装置用于形成背景光源。 第一感光装置用于检测第一光和背景光源。 处理器能够根据停止的背景光源计算对象的坐标。 当第一感光装置中的任一个检测到光笔时，处理器将驱动照明装置而不形成背景光源，并根据检测到的第一光来计算第一光电发射器的坐标。

公开(公告)号：US20100201639A1

公开(公告)日：2010-08-12

申请号：US12546094

申请日：2009-08-24

Applicant: Yi-Ming Huang ,  Ching-Chun Chiang ,  Yun-Cheng Liu ,  Chiou-Tzung Liou ,  Ting-Hsuan Chang

Inventor： Yi-Ming Huang ,  Ching-Chun Chiang ,  Yun-Cheng Liu ,  Chiou-Tzung Liou ,  Ting-Hsuan Chang

IPC: G06F3/041

CPC classification number: G06F3/017 ,  G06F3/0428

Abstract: The invention provides an optical touch display device. The optical touch display device comprises a display module, a first image capturing module, a second image capturing module and a processing module. The display module generates N touch points according to a touch gesture, the touch gesture has a specific moving model, and N is a positive integer. The first image capturing module retrieves a first image relating to N touch points. The second image capturing module retrieves a second image relating to N touch points. The processing module determines correspondingly a specific touch chord of N touch points according to the first image and the second image, and determines correspondingly a specific function of the touch gesture according to the specific touch chord and the specific moving mode.

Abstract translation: 本发明提供一种光学触摸显示装置。 光学触摸显示装置包括显示模块，第一图像捕获模块，第二图像捕获模块和处理模块。 显示模块根据触摸手势产生N个触摸点，触摸手势具有特定的移动模型，并且N是正整数。 第一图像捕获模块检索与N个触摸点有关的第一图像。 第二图像捕获模块检索与N个触摸点相关的第二图像。 所述处理模块根据所述第一图像和所述第二图像相应地确定N个触摸点的特定触摸弦，并且根据所述特定触摸和弦和所述特定移动模式相应地确定所述触摸手势的特定功能。

公开(公告)号：US20090066662A1

公开(公告)日：2009-03-12

申请号：US12071263

申请日：2008-02-19

Applicant: Yun-Cheng Liu ,  Chin-Kang Chang ,  Ching-Chun Chiang

Inventor： Yun-Cheng Liu ,  Chin-Kang Chang ,  Ching-Chun Chiang

IPC: G06F3/041

CPC classification number: G06F3/0428 ,  G06F3/0416 ,  G06F2203/04808

Abstract: The invention provides a system for distinguishing multiple touch points. The system comprises a panel, a first image capturing unit, a second image capturing unit, at least one third image capturing unit, and a processing unit. N touch points are indicated on the panel. A first image and a second image related to the N touch points are captured by the first image capturing unit and the second image capturing unit. At least one third image related to the N touch points is captured by the at least one third image capturing unit. N sets of coordinates corresponding to the N touch points are calculated by the processing unit according to the first image and the second image. And, a set of real coordinates corresponding to the N touch points is determined from the N sets of coordinates according to the at least one third image.

Abstract translation: 本发明提供了一种用于区分多个接触点的系统。 该系统包括面板，第一图像拍摄单元，第二图像拍摄单元，至少一个第三图像拍摄单元和处理单元。 面板上显示N个触摸点。 与N个触摸点相关的第一图像和第二图像被第一图像拍摄单元和第二图像拍摄单元捕获。 至少一个第三图像捕获单元捕获与N个触摸点相关的至少一个第三图像。 由处理单元根据第一图像和第二图像计算与N个触摸点相对应的N组坐标。 并且，根据至少一个第三图像从N个坐标系确定与N个触摸点相对应的一组实际坐标。