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1. 发明申请

US20070003150A1 Embedded interaction code decoding for a liquid crystal display 有权
标题翻译：用于液晶显示器的嵌入式交互码解码
公开(公告)号：US20070003150A1
公开(公告)日：2007-01-04
申请号：US11169744
申请日：2005-06-30
申请人： An Xu , Chunhui Zhang , Jian Wang , Liyong Chen , Qiang Wang , Yingnong Dang
发明人： An Xu , Chunhui Zhang , Jian Wang , Liyong Chen , Qiang Wang , Yingnong Dang
IPC分类号： G06K9/36
CPC分类号： G06F3/03545
摘要： A method and system for decoding data on a medium that is captured by an input device is described. The method decodes a symbol design, such as an embedded interaction code (EIC), on a display screen, such as a liquid crystal display (LCD). An image that is captured by an input device, such as a universal pen-type input device with a camera, is received. The captured image is processed to output an extracted bit stream. Position data and/or metadata information is decoded from the extracted bit stream and a position of the captured image with respect to a screen of the LCD is determined based upon the decoded position data. The EIC pattern may be recognized from LCD pixel grids and a bit stream of EIC bits may be extracted based upon the recognized EIC pattern.
摘要翻译：描述用于对由输入装置捕获的介质上的数据进行解码的方法和系统。该方法在诸如液晶显示器（LCD）的显示屏上解码符号设计，例如嵌入式交互码（EIC）。接收由输入装置拍摄的图像，例如具有照相机的通用笔型输入装置。捕获的图像被处理以输出提取的比特流。位置数据和/或元数据信息从提取的比特流解码，并且基于解码的位置数据确定捕获图像相对于LCD的屏幕的位置。可以从LCD像素网格识别EIC图案，并且可以基于所识别的EIC图案来提取EIC位的比特流。

2. 发明授权

US07528848B2 Embedded interaction code decoding for a liquid crystal display 有权
标题翻译：用于液晶显示器的嵌入式交互码解码
公开(公告)号：US07528848B2
公开(公告)日：2009-05-05
申请号：US11169744
申请日：2005-06-30
申请人： An Xu , Chunhui Zhang , Jian Wang , Liyong Chen , Qiang Wang , Yingnong Dang
发明人： An Xu , Chunhui Zhang , Jian Wang , Liyong Chen , Qiang Wang , Yingnong Dang
IPC分类号： G09G5/00
CPC分类号： G06F3/03545
摘要： A method and system for decoding data on a medium that is captured by an input device is described. The method decodes a symbol design, such as an embedded interaction code (EIC), on a display screen, such as a liquid crystal display (LCD). An image that is captured by an input device, such as a universal pen-type input device with a camera, is received. The captured image is processed to output an extracted bit stream. Position data and/or metadata information is decoded from the extracted bit stream and a position of the captured image with respect to a screen of the LCD is determined based upon the decoded position data. The EIC pattern may be recognized from LCD pixel grids and a bit stream of EIC bits may be extracted based upon the recognized EIC pattern.
摘要翻译：描述用于对由输入装置捕获的介质上的数据进行解码的方法和系统。该方法在诸如液晶显示器（LCD）的显示屏上解码符号设计，例如嵌入式交互码（EIC）。接收由输入装置拍摄的图像，例如具有照相机的通用笔型输入装置。捕获的图像被处理以输出提取的比特流。位置数据和/或元数据信息从提取的比特流解码，并且基于解码的位置数据确定捕获图像相对于LCD的屏幕的位置。可以从LCD像素网格识别EIC图案，并且可以基于所识别的EIC图案来提取EIC位的比特流。

3. 发明授权

US07142197B2 Universal computing device 有权
标题翻译：通用计算设备
公开(公告)号：US07142197B2
公开(公告)日：2006-11-28
申请号：US10751879
申请日：2004-01-07
申请人： Jian Wang , Chunhui Zhang , Yihua Xu , An Xu
发明人： Jian Wang , Chunhui Zhang , Yihua Xu , An Xu
IPC分类号： G09G5/00
CPC分类号： G06F3/0317 , G06F3/0321 , G06F3/03545
摘要： The universal input device provides a common user interface for a variety of different computing platforms including printed documents. Using the present system, one may use the universal input device to control various computing devices as well as capture handwritten electronic ink and have the electronic ink be associated with new or stored documents. The universal input device can be identified by a specific identification in order to allow for multiple users to operate on a document and/or within an application program simultaneously or not. An off-set optical system with infrared illumination handles perspective and helps detect positional encoding which can be covered by existing ink under common visible light illumination.
摘要翻译：通用输入设备为各种不同的计算平台（包括打印文档）提供通用的用户界面。使用本系统，可以使用通用输入设备来控制各种计算设备以及捕获手写电子墨水并使电子墨水与新的或存储的文档相关联。可以通过特定标识来识别通用输入设备，以便允许多个用户同时操作文档和/或应用程序中的操作。具有红外照明的偏光光学系统可以透视，并且可以帮助检测在常见的可见光照明下可以被现有墨覆盖的位置编码。

4. 发明授权

US07664336B2 Video noise reduction 有权
标题翻译：视频降噪
公开(公告)号：US07664336B2
公开(公告)日：2010-02-16
申请号：US11340313
申请日：2006-01-26
申请人： Zhengyou Zhang , An Xu , Chunhui Zhang
发明人： Zhengyou Zhang , An Xu , Chunhui Zhang
IPC分类号： G06K9/40
CPC分类号： G06K9/40
摘要： A video clip is processed by selecting a plurality of video frames of the video clip. A plurality of the pixels of the selected video frames are modified to form modified video frames. The modification to each of the plurality of the pixels is based on the intensity of the pixel, a change in the intensity of the pixel from the corresponding pixel in at least one related video frame, and the intensity of the corresponding pixel. A second video clip is formed that comprises the modified video clips.
摘要翻译：通过选择视频剪辑的多个视频帧来处理视频剪辑。所选择的视频帧的多个像素被修改以形成修改的视频帧。对多个像素中的每一个的修改基于像素的强度，来自至少一个相关视频帧中的对应像素的像素强度的变化以及相应像素的强度。形成包括经修改的视频剪辑的第二视频剪辑。

5. 发明申请

US20070172144A1 Video noise reduction 有权
标题翻译：视频降噪
公开(公告)号：US20070172144A1
公开(公告)日：2007-07-26
申请号：US11340313
申请日：2006-01-26
申请人： Zhengyou Zhang , An Xu , Chunhui Zhang
发明人： Zhengyou Zhang , An Xu , Chunhui Zhang
IPC分类号： G06K9/40
CPC分类号： G06K9/40
摘要： A video clip is processed by selecting a plurality of video frames of the video clip. A plurality of the pixels of the selected video frames are modified to form modified video frames. The modification to each of the plurality of the pixels is based on the intensity of the pixel, a change in the intensity of the pixel from the corresponding pixel in at least one related video frame, and the intensity of the corresponding pixel. A second video clip is formed that comprises the modified video clips.
摘要翻译：通过选择视频剪辑的多个视频帧来处理视频剪辑。所选择的视频帧的多个像素被修改以形成修改的视频帧。对多个像素中的每一个的修改基于像素的强度，来自至少一个相关视频帧中的对应像素的像素强度的变化以及相应像素的强度。形成包括经修改的视频剪辑的第二视频剪辑。

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