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1. 发明授权

US07853886B2 Persistent spatial collaboration 有权
标题翻译：持续的空间协作
公开(公告)号：US07853886B2
公开(公告)日：2010-12-14
申请号：US11711314
申请日：2007-02-27
申请人： Steven M. Drucker , Aamer Hydrie , Li-wei He , Rajesh K. Hegde , Zhengyou Zhang
发明人： Steven M. Drucker , Aamer Hydrie , Li-wei He , Rajesh K. Hegde , Zhengyou Zhang
IPC分类号： G06F3/00
CPC分类号： G06F9/542 , G06F2209/544 , G06F2209/546 , G06Q10/10
摘要： Persistent, spatial collaboration on the web supports a free-form, user-intuitive approach to a variety of projects and activities. Users can place differing object types at any time any where on a web page and/or the system can automatically, and with no user effort, affect object placement based on one or more meta data characteristics. A user can, in real-time, see changes made by another user to a web page, and, if desired, react accordingly, enabling true collaboration even if the various users are at remote locations. The flexibility of the methodology and system provides a platform for users to engage in projects and activities in a manner and environment suited to the users' mind sets, creativity, and natural proclivities.
摘要翻译：持续的，在网络上的空间协作支持对各种项目和活动的自由形式，用户直观的方法。用户可以随时在网页和/或系统上自动放置不同的对象类型，并且无需用户努力，就会根据一个或多个元数据特征影响对象放置。用户可以实时地查看另一用户对网页所做的更改，如果需要，还可以进行相应的反应，即使各个用户位于偏远的位置也能实现真正的协作。方法学和系统的灵活性为用户提供了一个适合用户心态，创造力和自然倾向的方式和环境参与项目和活动的平台。

2. 发明授权

US07624145B2 Persistent collaborative framework for interactive web applications 有权
标题翻译：用于交互式Web应用程序的持久协作框架
公开(公告)号：US07624145B2
公开(公告)日：2009-11-24
申请号：US11620658
申请日：2007-01-06
申请人： Sasa Junuzovic , Rajesh Hegde , Li-wei He , Zhengyou Zhang , Steven Drucker
发明人： Sasa Junuzovic , Rajesh Hegde , Li-wei He , Zhengyou Zhang , Steven Drucker
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177
CPC分类号： H04L67/1095 , H04L67/02 , Y10S707/99931
摘要： A framework for facilitating collaborative interaction between users of a web application is presented. The framework provides persistence and sharing mechanisms for arbitrary application-defined objects. The sharing mechanism is coupled with a consistency mechanism that keeps client states consistent even when users perform conflicting operations. This framework is application-independent in that the persistence, sharing between clients and maintaining a consistent state among the clients is accomplished without the need for specific knowledge of the design of the web application. Thus, web developers can focus on the logic of the application and the UI, instead of spending time designing and implementing collaborative capabilities.
摘要翻译：介绍了一种用于促进Web应用程序用户之间的协作交互的框架。该框架为任意应用程序定义的对象提供持久性和共享机制。共享机制与一致性机制相结合，即使在用户执行冲突操作时也能保持客户端状态的一致性。该框架是独立于应用程序的，因为在客户机之间的持久性，共享和维护一致的状态之间完成了这一任务，而不需要Web应用程序设计的特定知识。因此，Web开发人员可以专注于应用程序和UI的逻辑，而不是花时间设计和实现协作功能。

3. 发明申请

US20080168139A1 PERSISTENT COLLABORATIVE FRAMEWORK FOR INTERACTIVE WEB APPLICATIONS 有权
标题翻译：用于交互式WEB应用程序的紧密协作框架
公开(公告)号：US20080168139A1
公开(公告)日：2008-07-10
申请号：US11620658
申请日：2007-01-06
申请人： Sasa Junuzovic , Rajesh Hegde , Li-Wei He , Zhengyou Zhang , Steven Drucker
发明人： Sasa Junuzovic , Rajesh Hegde , Li-Wei He , Zhengyou Zhang , Steven Drucker
IPC分类号： G06F15/16
CPC分类号： H04L67/1095 , H04L67/02 , Y10S707/99931
摘要： A framework for facilitating collaborative interaction between users of a web application is presented. The framework provides persistence and sharing mechanisms for arbitrary application-defined objects. The sharing mechanism is coupled with a consistency mechanism that keeps client states consistent even when users perform conflicting operations. This framework is application-independent in that the persistence, sharing between clients and maintaining a consistent state among the clients is accomplished without the need for specific knowledge of the design of the web application. Thus, web developers can focus on the logic of the application and the UI, instead of spending time designing and implementing collaborative capabilities.
摘要翻译：介绍了一种用于促进Web应用程序用户之间的协作交互的框架。该框架为任意应用程序定义的对象提供持久性和共享机制。共享机制与一致性机制相结合，即使在用户执行冲突操作时也能保持客户端状态的一致性。该框架是独立于应用程序的，因为在客户端之间的持久性，共享和维护一致的状态之间完成了这一任务，而不需要对Web应用程序设计的具体知识。因此，Web开发人员可以专注于应用程序和UI的逻辑，而不是花时间设计和实现协作功能。

4. 发明授权

US07171056B2 System and method for converting whiteboard content into an electronic document 有权
标题翻译：将白板内容转换为电子文档的系统和方法
公开(公告)号：US07171056B2
公开(公告)日：2007-01-30
申请号：US10372488
申请日：2003-02-22
申请人： Zhengyou Zhang , Li-wei He
发明人： Zhengyou Zhang , Li-wei He
IPC分类号： G06K9/36 , G06K9/40
CPC分类号： H04N1/6027 , G06K9/32 , G06K9/42 , G06K2209/01 , G06T5/006 , G06T7/12 , G06T2207/10016 , G06T2207/20061 , H04N1/387 , H04N1/4072
摘要： A system and method of converting the content of a regular whiteboard into an electronic document. This system and method provides an effective, economical and easy to use way to convert whiteboard content as an enhanced and easily editable electronic document though the use of a still or video camera. It uses a series of image processing steps to clip borders, rectify the whiteboard image and correct colors.
摘要翻译：将普通白板的内容转换为电子文档的系统和方法。该系统和方法提供了一种有效，经济且易于使用的方式，通过使用静态或摄像机，将白板内容转换为增强型和易于编辑的电子文档。它使用一系列图像处理步骤来剪切边框，纠正白板图像和正确的颜色。

5. 发明授权

US07924655B2 Energy-based sound source localization and gain normalization 有权
标题翻译：基于能量的声源定位和增益归一化
公开(公告)号：US07924655B2
公开(公告)日：2011-04-12
申请号：US11623643
申请日：2007-01-16
申请人： Zicheng Liu , Zhengyou Zhang , Li-wei He , Philip A. Chou , Minghua Chen
发明人： Zicheng Liu , Zhengyou Zhang , Li-wei He , Philip A. Chou , Minghua Chen
IPC分类号： H04R5/02
CPC分类号： G01S11/14 , G01S5/30 , H04M3/56 , H04N7/141 , H04N7/15 , H04R3/005 , H04R2420/07
摘要： An energy based technique to estimate the positions of people speaking from an ad hoc network of microphones. The present technique does not require accurate synchronization of the microphones. In addition, a technique to normalize the gains of the microphones based on people's speech is presented, which allows aggregation of various audio channels from the ad hoc microphone network into a single stream for audio conferencing. The technique is invariant of the speaker's volumes thus making the system easy to deploy in practice.
摘要翻译：一种基于能量的技术来估计从麦克风的自组织网络发言的人的位置。本技术不需要麦克风的准确同步。此外，提出了一种基于人们的语音来归一化麦克风的增益的技术，其允许将各种音频频道从专用麦克风网络聚合成用于音频会议的单个流。该技术是扬声器音量不变的，从而使得系统在实践中容易部署。

6. 发明申请

US20080209327A1 Persistent spatial collaboration 有权
标题翻译：持续的空间协作
公开(公告)号：US20080209327A1
公开(公告)日：2008-08-28
申请号：US11711314
申请日：2007-02-27
申请人： Steven M. Drucker , Aamer Hydrie , Li-wei He , Rajesh K. Hegde , Zhengyou Zhang
发明人： Steven M. Drucker , Aamer Hydrie , Li-wei He , Rajesh K. Hegde , Zhengyou Zhang
IPC分类号： G06F3/00
CPC分类号： G06F9/542 , G06F2209/544 , G06F2209/546 , G06Q10/10
摘要： Persistent, spatial collaboration on the web supports a free-form, user-intuitive approach to a variety of projects and activities. Users can place differing object types at any time any where on a web page and/or the system can automatically, and with no user effort, affect object placement based on one or more meta data characteristics. A user can, in real-time, see changes made by another user to a web page, and, if desired, react accordingly, enabling true collaboration even if the various users are at remote locations. The flexibility of the methodology and system provides a platform for users to engage in projects and activities in a manner and environment suited to the users' mind sets, creativity, and natural proclivities.
摘要翻译：持续的，在网络上的空间协作支持对各种项目和活动的自由形式，用户直观的方法。用户可以随时在网页和/或系统上自动放置不同的对象类型，并且无需用户努力，就会根据一个或多个元数据特征影响对象放置。用户可以实时地查看另一用户对网页所做的更改，如果需要，还可以进行相应的反应，即使各个用户位于偏远的位置也能实现真正的协作。方法学和系统的灵活性为用户提供了一个适合用户心态，创造力和自然倾向的方式和环境参与项目和活动的平台。

7. 发明授权

US07224847B2 System and method for real-time whiteboard streaming 有权
标题翻译：用于实时白板流的系统和方法
公开(公告)号：US07224847B2
公开(公告)日：2007-05-29
申请号：US10463068
申请日：2003-06-17
申请人： Zhengyou Zhang , Li-wei He
发明人： Zhengyou Zhang , Li-wei He
IPC分类号： G06K9/40
CPC分类号： H04L65/4046 , H04L29/06027 , H04L67/38 , H04N7/15
摘要： A system and method for streaming whiteboard content to computing devices in a networked environment. The invention is an extension of whiteboard image generation technology to provide network-based collaboration of a target meeting. In one aspect, each networked client can receive audio content and whiteboard content (video images). In another aspect, each networked client can transmit audio content and annotation content which is displayed separately or generated on the whiteboard image. The streaming content is built on external collaboration frameworks.
摘要翻译：一种用于将白板内容传送到网络环境中的计算设备的系统和方法。本发明是白板图像生成技术的扩展，以提供目标会议的基于网络的协作。在一个方面，每个联网的客户端可以接收音频内容和白板内容（视频图像）。在另一方面，每个联网的客户端可以发送单独显示或在白板图像上生成的音频内容和注释内容。流媒体内容基于外部协作框架。

8. 发明授权

US07770116B2 System and method for whiteboard and audio capture 有权
标题翻译：用于白板和音频捕获的系统和方法
公开(公告)号：US07770116B2
公开(公告)日：2010-08-03
申请号：US11565596
申请日：2006-11-30
申请人： Zhengyou Zhang , Ross Cutler , Zicheng Liu , Anoop Gupta , Li-wei He
发明人： Zhengyou Zhang , Ross Cutler , Zicheng Liu , Anoop Gupta , Li-wei He
IPC分类号： G06F3/00 , G06F3/14
CPC分类号： G06F17/30843 , G06Q10/1095 , G11B27/105 , G11B27/28 , G11B27/34 , H04N5/77 , H04N9/806
摘要： A system that captures both whiteboard content and audio signals of a meeting using a digital camera and a microphone. The system can be retrofit to any existing whiteboard. It computes the time stamps of pen strokes on the whiteboard by analyzing the sequence of captured snapshots. It also automatically produces a set of key frames representing all the written content on the whiteboard before each erasure. The whiteboard content serves as a visual index to efficiently browse the audio meeting. The system not only captures the whiteboard content, but also helps the users to view and manage the captured meeting content efficiently and securely.
摘要翻译：使用数码相机和麦克风捕获会议的白板内容和音频信号的系统。该系统可以改装任何现有的白板。它通过分析捕获的快照的顺序来计算白板上笔划的时间戳。它也会在每次擦除之前自动产生代表白板上所有写入内容的一组关键帧。白板内容作为视觉索引，有效地浏览音频会议。该系统不仅可以捕获白板内容，还可以帮助用户有效，安全地查看和管理所捕获的会议内容。

9. 发明申请

US20070126755A1 System and Method for Whiteboard and Audio Capture 有权
标题翻译：白板和音频捕获的系统和方法
公开(公告)号：US20070126755A1
公开(公告)日：2007-06-07
申请号：US11565596
申请日：2006-11-30
申请人： Zhengyou Zhang , Ross Cutler , Zicheng Liu , Anoop Gupta , Li-wei He
发明人： Zhengyou Zhang , Ross Cutler , Zicheng Liu , Anoop Gupta , Li-wei He
IPC分类号： G09G5/00
CPC分类号： G06F17/30843 , G06Q10/1095 , G11B27/105 , G11B27/28 , G11B27/34 , H04N5/77 , H04N9/806
摘要： A system that captures both whiteboard content and audio signals of a meeting using a digital camera and a microphone. The system can be retrofit to any existing whiteboard. It computes the time stamps of pen strokes on the whiteboard by analyzing the sequence of captured snapshots. It also automatically produces a set of key frames representing all the written content on the whiteboard before each erasure. The whiteboard content serves as a visual index to efficiently browse the audio meeting. The system not only captures the whiteboard content, but also helps the users to view and manage the captured meeting content efficiently and securely.
摘要翻译：使用数码相机和麦克风捕获会议的白板内容和音频信号的系统。该系统可以改装任何现有的白板。它通过分析捕获的快照的顺序来计算白板上笔划的时间戳。它也会在每次擦除之前自动产生代表白板上所有写入内容的一组关键帧。白板内容作为视觉索引，有效地浏览音频会议。该系统不仅可以捕获白板内容，还可以帮助用户有效，安全地查看和管理所捕获的会议内容。

10. 发明申请

US20050104901A1 System and method for whiteboard scanning to obtain a high resolution image 审中-公开
公开(公告)号：US20050104901A1
公开(公告)日：2005-05-19
申请号：US11009974
申请日：2004-12-11
申请人： Zhengyou Zhang , Li-wei He
发明人： Zhengyou Zhang , Li-wei He
IPC分类号： G09G5/00 , H01L27/00 , H04N1/04 , H04N1/195
CPC分类号： H04N1/04 , H04N1/195 , H04N1/19594 , H04N2201/0414 , H04N2201/0424 , H04N2201/0426 , H04N2201/0438
摘要： This invention is directed toward a system and method for scanning a scene or object such as a whiteboard, paper document or similar item. More specifically, the invention is directed toward a system and method for obtaining a high-resolution image of a whiteboard or other object with a low-resolution camera. The system and method of the invention captures either a set of snapshots with overlap or a continuous video sequence, and then stitches them automatically into a single high-resolution image. The stitched image can finally be exported to other image processing systems and methods for further enhancement.

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