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1. 发明授权

US07739715B2 Variable play speed control for media streams 有权
标题翻译：媒体流的可变播放速度控制
公开(公告)号：US07739715B2
公开(公告)日：2010-06-15
申请号：US10602847
申请日：2003-06-24
申请人： Li-Wei He , Adil Sherwani , Patrick N. Nelson , Richard William Saunders , Jonathan M. Cain , Anders E. Klemets
发明人： Li-Wei He , Adil Sherwani , Patrick N. Nelson , Richard William Saunders , Jonathan M. Cain , Anders E. Klemets
IPC分类号： H04N7/173
CPC分类号： H04L65/4092 , H04L29/06027 , H04L65/80
摘要： Systems and methods are described that support variable play speed control for media streams. The variable play speed control for media streams discussed herein provides an end-to-end solution for media stream delivery, playback, and user interface that enables end users and software developers to dynamically control the playback speed of media streams without losing the ability to comprehend the media content.
摘要翻译：描述了支持媒体流的可变播放速度控制的系统和方法。本文讨论的媒体流的可变播放速度控制提供了用于媒体流传送，回放和用户界面的端到端解决方案，其使终端用户和软件开发者能够动态地控制媒体流的播放速度，而不失去理解的能力媒体内容。

2. 发明授权

US08051362B2 Distributed data storage using erasure resilient coding 有权
标题翻译：使用擦除弹性编码的分布式数据存储
公开(公告)号：US08051362B2
公开(公告)日：2011-11-01
申请号：US11763891
申请日：2007-06-15
申请人： Jin Li , Li-Wei He , Jian Liang
发明人： Jin Li , Li-Wei He , Jian Liang
IPC分类号： H03M13/00
CPC分类号： G06F11/1076 , G06F2211/1028
摘要： An erasure resilient coding (ERC) distributed data storage system and method for storing data in a reliable and survivable fashion while minimizing hardware and associated costs. The system and method includes forming multiple protection groups both within and across storage nodes of the storage system. Data is segmented into original data blocks and ERC data blocks. Load balancing occurs by interleaving storage nodes with equal numbers of original data blocks and ERC data blocks while ensuring each node has an equal number of combined read and write operations. Unique read and write operations on data block can be performed independent of other data blocks in a protection group. The write operation uses Galois field arithmetic and ERC transform to either write or append a new data block to a storage node. The read operation recovers data in a variety of ways using ERC decoding.
摘要翻译：一种擦除弹性编码（ERC）分布式数据存储系统和方法，用于以可靠和可行的方式存储数据，同时最小化硬件和相关成本。该系统和方法包括在存储系统的存储节点内部和之间形成多个保护组。数据被分割成原始数据块和ERC数据块。通过在具有相等数量的原始数据块和ERC数据块的交织存储节点的同时确保每个节点具有相等数目的组合读和写操作来实现负载平衡。可以独立于保护组中的其他数据块执行对数据块的独特读写操作。写操作使用伽罗瓦域算术和ERC变换来向存储节点写入或附加新的数据块。读取操作使用ERC解码以各种方式恢复数据。

3. 发明申请

US20110246573A1 DISTRIBUTED NON-NEGATIVE MATRIX FACTORIZATION 有权
标题翻译：分布式非负矩阵法
公开(公告)号：US20110246573A1
公开(公告)日：2011-10-06
申请号：US12750772
申请日：2010-03-31
申请人： Chao Liu , Hung-Chih Yang , Jinliang Fan , Li-Wei He , Yi-Min Wang
发明人： Chao Liu , Hung-Chih Yang , Jinliang Fan , Li-Wei He , Yi-Min Wang
IPC分类号： G06F15/16
CPC分类号： G06F17/16
摘要： Architecture that scales up the non-negative matrix factorization (NMF) technique to a distributed NMF (denoted DNMF) to handle large matrices, for example, on a web scale that can include millions and billions of data points. To analyze web-scale data, DNMF is applied through parallelism on distributed computer clusters, for example, with thousands of machines. In order to maximize the parallelism and data locality, matrices are partitioned in the short dimension. The probabilistic DNMF can employ not only Gaussian and Poisson NMF techniques, but also exponential NMF for modeling web dyadic data (e.g., dwell time of a user on browsed web pages).
摘要翻译：将非负矩阵分解（NMF）技术扩展到分布式NMF（表示为DNMF）以处理大型矩阵的架构，例如，可以包括数百万和数十亿个数据点的网络规模。为了分析网络规模数据，DNMF通过并行性应用于分布式计算机集群，例如数千台机器。为了最大化并行度和数据局部性，矩阵在短维中被划分。概率DNMF不仅可以采用高斯和泊松NMF技术，还可以采用指数NMF来建模网络二进制数据（例如，用户在浏览的网页上的停留时间）。

4. 发明申请

US20090304032A1 REAL-TIME JITTER CONTROL AND PACKET-LOSS CONCEALMENT IN AN AUDIO SIGNAL 审中-公开
标题翻译：音频信号中的实时抖动控制和分组丢失隐藏
公开(公告)号：US20090304032A1
公开(公告)日：2009-12-10
申请号：US12542558
申请日：2009-08-17
申请人： Dinei Florencio , Philip A. Chou , Li-Wei He
发明人： Dinei Florencio , Philip A. Chou , Li-Wei He
IPC分类号： H04J3/06
CPC分类号： H04N21/4392 , G10L19/005 , H04N21/4394 , H04N21/4396 , H04N21/4398
摘要： An “adaptive audio playback controller” operates by decoding and reading received packets of an audio signal into a signal buffer. Samples of the decoded audio signal are then played out of the signal buffer according to the needs of a player device. Jitter control and packet loss concealment are accomplished by continuously analyzing buffer content in real-time, and determining whether to provide unmodified playback from the buffer contents, whether to compress buffer content, stretch buffer content, or whether to provide for packet loss concealment for overly delayed or lost packets as a function of buffer content. Further, the adaptive audio playback controller also determines where to stretch or compress particular frames or signal segments in the signal buffer, and how much to stretch or compress such segments in order to optimize perceived playback quality.
摘要翻译： “自适应音频播放控制器”通过将音频信号的接收分组解码并读取到信号缓冲器来进行操作。然后根据播放器设备的需要从信号缓冲器中播放经解码的音频信号的样本。抖动控制和分组丢失隐藏是通过实时连续分析缓冲区内容来实现的，并且确定是否从缓冲器内容中提供未修改的重放，是否压缩缓冲区内容，扩展缓冲区内容，还是提供丢包隐藏延迟或丢失的数据包作为缓冲区内容的函数。此外，自适应音频重放控制器还确定在哪里拉伸或压缩信号缓冲器中的特定帧或信号段，以及拉伸或压缩这些段以便优化感知的播放质量。

5. 发明授权

US07472198B2 Media file format to support switching between multiple timeline-altered media streams 有权
标题翻译：媒体文件格式支持在多个时间轴更改的媒体流之间切换
公开(公告)号：US07472198B2
公开(公告)日：2008-12-30
申请号：US11945006
申请日：2007-11-26
申请人： Anoop Gupta , Nosakhare D. Omoigui , Li-Wei He
发明人： Anoop Gupta , Nosakhare D. Omoigui , Li-Wei He
IPC分类号： G06F15/16 , H04N7/08
CPC分类号： H04L65/604 , H04N21/2335 , H04N21/23424 , H04N21/23439 , H04N21/44016 , H04N21/8456 , H04N21/85406 , H04N21/858 , Y10S707/99931
摘要： Media content is streamed from a server computer to a client computer. A media file format is used to store data for multiple timeline-altered streams that provides support for switching between the different timeline-altered streams during their presentation. In one aspect, a user can switch between different timeline-altered streams. Upon receiving a user request to switch to a particular timeline-altered stream (the target stream), the client computer accesses a time code stream data object corresponding to the current data unit being presented. The time code stream data object identifies a primary stream presentation time corresponding to the data unit. The client then uses the primary stream presentation time to index into a table of mappings to byte offsets. The table provides a mapping of the primary stream presentation time to a corresponding byte offset of the target stream.
摘要翻译：媒体内容从服务器计算机流式传输到客户端计算机。媒体文件格式用于存储多个时间轴变化流的数据，这些数据提供支持在不同的时间轴改变的流之间进行切换。在一个方面，用户可以在不同的时间轴变化的流之间切换。在接收到切换到特定时间线改变流（目标流）的用户请求时，客户端计算机访问与正在呈现的当前数据单元相对应的时间码流数据对象。时间码流数据对象标识对应于数据单元的主流呈现时间。然后，客户端使用主流呈现时间将其映射到字节偏移的映射表中。该表提供主流呈现时间与目标流的相应字节偏移的映射。

6. 发明授权

US07313808B1 Browsing continuous multimedia content 有权
标题翻译：浏览连续多媒体内容
公开(公告)号：US07313808B1
公开(公告)日：2007-12-25
申请号：US09565820
申请日：2000-05-05
申请人： Anoop Gupta , Li-Wei He , Francis C. Li , Yong Rui
发明人： Anoop Gupta , Li-Wei He , Francis C. Li , Yong Rui
IPC分类号： H04N7/173 , H04N7/16 , H04N5/91 , G06F15/16 , G06F15/00
CPC分类号： H04N7/163 , G11B27/034 , G11B27/28 , G11B27/34 , G11B2220/2516 , H04N5/76 , H04N5/765 , H04N5/781 , H04N5/783 , H04N9/8042 , H04N9/8205 , H04N21/4147 , H04N21/4325 , H04N21/4334 , H04N21/44008 , H04N21/440245 , H04N21/4622 , H04N21/482 , H04N21/8153 , H04N21/8456 , H04N21/8549
摘要： A program distribution system includes a plurality of set-top boxes that receive broadcast programming and segmentation data from content and information providers. The segmentation information indicates portions of programs that are to be included in skimmed or condensed versions of the received programming, and is produced using manual or automated methods. Automated methods include the use of ancillary production data to detect the most important parts of a program. A user interface allows a user to control time scale modification and skimming during playback, and also allows the user to easily browse to different points within the current program.
摘要翻译：程序分配系统包括从内容和信息提供者接收广播节目和分段数据的多个机顶盒。分割信息指示将被包括在接收到的节目的撇号或缩小版本中的节目的部分，并且使用手动或自动方法来产生。自动化方法包括使用辅助生产数据来检测程序的最重要部分。用户界面允许用户在播放期间控制时间刻度修改和缩放，并且还允许用户容易地浏览到当前节目内的不同点。

7. 发明授权

US07243140B2 Multi-level skimming of multimedia content using playlists 有权
标题翻译：使用播放列表对多媒体内容进行多层次的剔除
公开(公告)号：US07243140B2
公开(公告)日：2007-07-10
申请号：US11276424
申请日：2006-02-28
申请人： Anoop Gupta , Li-Wei He , Nosakhare D. Omoigui
发明人： Anoop Gupta , Li-Wei He , Nosakhare D. Omoigui
IPC分类号： G06F15/16
CPC分类号： G06F17/30053 , G06F17/30017 , G11B27/105 , G11B27/34 , H04N7/17318 , H04N21/23439 , H04N21/26258 , H04N21/4621 , H04N21/4825 , H04N21/6377 , H04N21/658 , H04N21/6587 , H04N21/8455 , H04N21/8456 , H04N21/8549
摘要： A skimmed or preview version of multimedia content is provided to a client computer by a server computer using playlists. The skimmed version of multimedia content can be presented to a user of a client computer in less time than presenting the entire multimedia content would require. The server computer maintains skimming information that identifies particular segments of the multimedia content corresponding to the skimmed version. The server computer uses the skimming information to generate a playlist, which in turn is used by the server computer to access the appropriate segments of the multimedia content and provide the segments to the client computer.
摘要翻译：由服务器计算机使用播放列表向客户端计算机提供多媒体内容的撇去或预览版本。可以在比呈现整个多媒体内容所需的时间更短的时间内将多媒体内容的撇掉版本呈现给客户端计算机的用户。服务器计算机维护识别与撇去版本对应的多媒体内容的特定段的撇号信息。服务器计算机使用撇号信息来生成播放列表，该播放列表又由服务器计算机使用以访问多媒体内容的适当段，并将该片段提供给客户端计算机。

8. 发明申请

US20090244278A1 SOFTWARE BASED WHITEBOARD CAPTURE SOLUTION FOR CONFERENCE ROOM MEETINGS 有权
标题翻译：基于软件的白板捕获解决方案，用于会议室会议
公开(公告)号：US20090244278A1
公开(公告)日：2009-10-01
申请号：US12057936
申请日：2008-03-28
申请人： Puneet Taneja , Li-Wei He , Shiran Sathananthan , Eric Sather , Vivek Ramamoorthy , Anil Kommineni , Paul Egger
发明人： Puneet Taneja , Li-Wei He , Shiran Sathananthan , Eric Sather , Vivek Ramamoorthy , Anil Kommineni , Paul Egger
IPC分类号： H04N7/18
CPC分类号： H04N7/15 , G06Q10/10 , H04L12/1827 , H04L12/1831 , H04N7/147
摘要： Whiteboard contents are captured through a combination of hardware and software components such as a webcam and a capture application executed in a PC or a video conference system components. The captured content can be stored, used in an online meeting, processed, made available or transmitted to participants and others.
摘要翻译：通过硬件和软件组件的组合捕获白板内容，例如在PC或视频会议系统组件中执行的网络摄像头和捕获应用程序。捕获的内容可以存储，在线会议中使用，处理，提供或传输给参与者和其他人。

9. 发明授权

US07596488B2 System and method for real-time jitter control and packet-loss concealment in an audio signal 有权
标题翻译：用于音频信号中实时抖动控制和丢包隐藏的系统和方法
公开(公告)号：US07596488B2
公开(公告)日：2009-09-29
申请号：US10663390
申请日：2003-09-15
申请人： Dinei Florencio , Philip Chou , Li-Wei He
发明人： Dinei Florencio , Philip Chou , Li-Wei He
IPC分类号： G10L19/04 , G10L21/04 , G10L11/06
CPC分类号： H04N21/4392 , G10L19/005 , H04N21/4394 , H04N21/4396 , H04N21/4398
摘要： An “adaptive audio playback controller” operates by decoding and reading received packets of an audio signal into a signal buffer. Samples of the decoded audio signal are then played out of the signal buffer according to the needs of a player device. Jitter control and packet loss concealment are accomplished by continuously analyzing buffer content in real-time, and determining whether to provide unmodified playback from the buffer contents, whether to compress buffer content, stretch buffer content, or whether to provide for packet loss concealment for overly delayed or lost packets as a function of buffer content. Further, the adaptive audio playback controller also determines where to stretch or compress particular frames or signal segments in the signal buffer, and how much to stretch or compress such segments in order to optimize perceived playback quality.
摘要翻译： “自适应音频播放控制器”通过将音频信号的接收分组解码并读取到信号缓冲器来进行操作。然后根据播放器设备的需要从信号缓冲器中播放经解码的音频信号的样本。抖动控制和分组丢失隐藏是通过实时连续分析缓冲区内容来实现的，并且确定是否从缓冲器内容中提供未修改的重放，是否压缩缓冲区内容，扩展缓冲区内容，还是提供丢包隐藏延迟或丢失的数据包作为缓冲区内容的函数。此外，自适应音频重放控制器还确定在哪里拉伸或压缩信号缓冲器中的特定帧或信号段，以及拉伸或压缩这些段以便优化感知的播放质量。

10. 发明授权

US07446772B2 Spectator experience for networked gaming 有权
标题翻译：网络游戏的观众体验
公开(公告)号：US07446772B2
公开(公告)日：2008-11-04
申请号：US11311870
申请日：2005-12-19
申请人： Curtis G. Wong , Steven Drucker , Michael F. Cohen , Steven D. De Mar , Asta L. Glatzer , Li-Wei He
发明人： Curtis G. Wong , Steven Drucker , Michael F. Cohen , Steven D. De Mar , Asta L. Glatzer , Li-Wei He
IPC分类号： G06T15/00
CPC分类号： A63F13/86 , A63F13/12 , A63F13/5252 , A63F13/5255 , A63F2300/577 , Y10S345/952
摘要： A spectator experience corresponding to an occurrence of one or more games or events is generated based on each associated occurrence. The occurrence of a game or event varies in response to contributions and/or interactions of one or more participants of the game or event. The spectator experience enables users thereof to observe an augmented version of the game or event, such as by implementing enhanced viewpoint controls and/or other spectator related effects. In a particular aspect, the spectator experience can provide an indication of the spectator' presence, which is made available to the spectators and/or to the participants of the game.
摘要翻译：基于每个相关联的事件生成对应于一个或多个游戏或事件的发生的观众体验。游戏或事件的发生响应于游戏或事件的一个或多个参与者的贡献和/或交互而变化。观众体验使其用户能够观察游戏或事件的增强版本，例如通过实施增强的视点控制和/或其他观众相关效果。在特定方面，观众体验可以提供观众的存在的指示，这是向观众和/或游戏参与者提供的。

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