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1. 发明申请

WO2009061363A3 A SCALABLE VIDEO CODING METHOD FOR FAST CHANNEL CHANGE AND INCREASED ERROR RESILIENCE 审中-公开
标题翻译：一种可扩展的视频编码方法，用于快速信道变化和增加的错误响应
公开(公告)号：WO2009061363A3
公开(公告)日：2009-08-13
申请号：PCT/US2008012303
申请日：2008-10-30
申请人： THOMSON LICENSING , WU ZHENYU , STEIN ALAN JAY , ANDERSON DAVID
发明人： WU ZHENYU , STEIN ALAN JAY , ANDERSON DAVID
IPC分类号： H04N7/26 , H04N19/89
CPC分类号： H04N21/4383 , H04N19/33 , H04N19/65 , H04N19/68 , H04N19/89 , H04N21/2362
摘要： An apparatus encodes a video signal for providing a scalable video coded (SVC) signal comprising a base layer video coded signal and an enhancement layer video coded signal, wherein the base layer video coded signal has more random access points than the enhancement layer video coded signal.
摘要翻译：一种设备对视频信号进行编码以提供包括基础层视频编码信号和增强层视频编码信号的可伸缩视频编码（SVC）信号，其中基础层视频编码信号具有比增强层视频编码信号更多的随机接入点。

2. 发明申请

WO2009032126A2 METHODS AND SYSTEMS FOR PROVIDING DIFFERENT DATA LOSS PROTECTION 审中-公开
标题翻译：提供不同数据丢失保护的方法和系统
公开(公告)号：WO2009032126A2
公开(公告)日：2009-03-12
申请号：PCT/US2008010150
申请日：2008-08-27
申请人： THOMSON LICENSING , WU ZHENYU , BOYCE JILL MAC DONALD , STEIN ALAN JAY
发明人： WU ZHENYU , BOYCE JILL MAC DONALD , STEIN ALAN JAY
IPC分类号： H04L1/00
CPC分类号： H04L1/007
摘要： This invention relates to methods and apparatus for partitioning a data word into a protected region and an unprotected region in the link layer, forward error correction of a DVB-H module to provide unequal error protection of frames during forward error correction of the frames. IP-datagrams are encapsulated for coding after a pre-loading stage is initiated so that the reliability and importance of data in data frames corresponding to the IP-datagrams can be determined. Unequal error protection is further achieved by padding zeros in the unprotected region.
摘要翻译：本发明涉及用于将数据字划分成链路层中的保护区域和未保护区域的方法和设备，DVB-H模块的前向纠错以在帧的前向纠错期间提供帧的不等错误保护。在启动预加载阶段之后，封装IP数据报用于编码，从而可以确定与IP数据报相对应的数据帧中的数据的可靠性和重要性。通过在无保护区域填充零来进一步实现不等错误保护。

3. 发明申请

WO2007120245A8 METHOD FOR REDUCING CHANNEL CHANGE TIMES IN A DIGITAL VIDEO APPARATUS 审中-公开
标题翻译：在数字视频设备中减少频道更改时间的方法
公开(公告)号：WO2007120245A8
公开(公告)日：2008-11-27
申请号：PCT/US2006048215
申请日：2006-12-18
申请人： THOMSON LICENSING , DAI JIWANG , CASH GLENN LAWRENCE , STEIN ALAN JAY
发明人： DAI JIWANG , CASH GLENN LAWRENCE , STEIN ALAN JAY
IPC分类号： H04N5/50
CPC分类号： H04N5/50 , H04N21/23439 , H04N21/4384 , H04N21/44016 , H04N21/6405 , H04N21/64322
摘要： A digital video apparatus (50) provides reduced channel change times. According to an exemplary embodiment, the digital video apparatus (50) includes at least one receiver (52, 60) for receiving first and second video streams (12, 14) representing the same program, wherein the first video stream (12) has at least one characteristic different from the second video stream (14); a first signal processor (54, 56, 58) for processing the first video stream (12) to generate a first processed video stream; a second signal processor (62) for processing the second video stream (14) to generate a second processed video stream having a delay with respect to the first processed video stream; a renderer (66) for rendering the second processed video stream responsive to a channel change command; and a switch (64) for switching from the second processed video stream to the first processed video stream after the renderer (66) begins rendering the second processed video stream, and thereby causing the renderer (66) to begin rendering the first processed video stream.
摘要翻译：数字视频设备（50）提供减少的频道切换时间。根据示例性实施例，数字视频设备（50）包括用于接收表示相同节目的第一和第二视频流（12,14）的至少一个接收器（52,60），其中第一视频流（12）具有与第二视频流（14）不同的至少一个特性; 用于处理所述第一视频流（12）以产生第一处理视频流的第一信号处理器（54,56,58）; 第二信号处理器（62），用于处理所述第二视频流（14）以产生相对于所述第一处理视频流具有延迟的第二处理视频流; 响应于频道改变命令呈现第二处理视频流的渲染器（66）; 以及用于在渲染器（66）开始渲染第二处理视频流之后从第二处理视频流切换到第一处理视频流的开关（64），从而使渲染器（66）开始渲染第一处理视频流。

4. 发明申请

WO2004008642A3 MOTION ESTIMATION WITH WEIGHTING PREDICTION 审中-公开
标题翻译：运动估计与加权预测
公开(公告)号：WO2004008642A3
公开(公告)日：2004-04-08
申请号：PCT/US0321653
申请日：2003-07-11
申请人： THOMSON LICENSING SA , BOYCE JILL MACDONALD , STEIN ALAN JAY
发明人： BOYCE JILL MACDONALD , STEIN ALAN JAY
IPC分类号： H04N7/32 , G06T9/00 , H03M7/36 , H04N1/00 , H04N7/12 , H04N7/26 , H04N7/46 , H04N7/50
CPC分类号： H04N19/577 , H04N19/105 , H04N19/149 , H04N19/176 , H04N19/192 , H04N19/196 , H04N19/197 , H04N19/46 , H04N19/61 , H04N19/90
摘要： A video encoder and decoder are provided for encoding and decoding video signal data for an image block and a particular reference picture index to predict the image block, where the encoder (300) includes a reference picture weighting factor selector (372) having an output indicative of a weighting factor corresponding to the particular reference picture index, a multiplier (374) in signal communication with the reference picture weighting factor selector for providing a weighted version of the reference picture, and a motion estimator (380) in signal communication with the multiplier for providing motion vectors corresponding to the weighted version of the reference picture; and the corresponding decoder (500) a reference picture weighting factor unit (580) having an output for determining a weighting factor corresponding to the particular reference picture index.
摘要翻译：提供视频编码器和解码器，用于对图像块的视频信号数据和特定参考图像索引进行编码和解码以预测图像块，其中编码器（300）包括具有输出指示的参考图像加权因子选择器（372）与参考图像加权因子选择器进行信号通信的乘法器（374），用于提供参考图像的加权版本;以及运动估计器（380），与乘法器进行信号通信用于提供与参考图片的加权版本对应的运动矢量; 和对应的解码器（500）具有用于确定与特定参考图像索引对应的加权因子的输出的参考图像加权因子单元（580）。

5. 发明申请

WO2008057110A3 METHOD FOR REDUCING CHANNEL CHANGE TIMES AND SYNCHRONIZING AUDIO/VIDEO CONTENT DURING CHANNEL CHANGE 审中-公开
标题翻译：减少信道变化时间和同步信道变化期间的音频/视频内容的方法
公开(公告)号：WO2008057110A3
公开(公告)日：2008-08-07
申请号：PCT/US2006047633
申请日：2006-12-13
申请人： THOMSON LICENSING , DAI JIWANG , STEIN ALAN JAY
发明人： DAI JIWANG , STEIN ALAN JAY
IPC分类号： H04N5/44
CPC分类号： H04N5/50 , H04N5/04 , H04N5/4401 , H04N21/23439 , H04N21/4307 , H04N21/4384 , H04N21/44016 , H04N21/6405
摘要： A digital A/V apparatus (50) provides reduced channel changes times and maintains synchronization between audio and video content during a channel change event. According to an exemplary embodiment, the digital A/V apparatus (50) includes at least one signal receiver (52, 62) for receiving a first audio stream, a first video stream and a second video stream, wherein the first and second video streams represent the same program and the first video stream has at least one characteristic different from the second video stream; a first audio signal processor (68) for processing the first audio stream to generate a first processed audio stream; a first video signal processor (66) for processing the first video stream to generate a first processed video stream; a second video signal processor (56, 58) for processing the second video stream to generate a second processed video stream having a delay with respect to the first processed video stream; a first buffer (74) for buffering the first processed audio stream to provide de-jittering; a renderer (78, 80) for rendering the first processed audio stream and the second processed video stream in response to a channel change command; a switch (76) for switching from the second processed video stream to the first processed video stream after the renderer (78) begins rendering the second processed video stream, and thereby causing the renderer (78) to begin rendering the first processed video stream; and whereby synchronization between the first processed audio stream and the first processed video stream is maintained during a channel change event.
摘要翻译：数字A / V装置（50）在频道改变事件期间提供减少的频道改变时间并保持音频和视频内容之间的同步。根据示例性实施例，数字A / V装置（50）包括用于接收第一音频流，第一视频流和第二视频流的至少一个信号接收器（52,62），其中第一和第二视频流表示相同的节目，并且所述第一视频流具有与所述第二视频流不同的至少一个特性; 第一音频信号处理器（68），用于处理第一音频流以生成第一处理后的音频流; 第一视频信号处理器（66），用于处理第一视频流以产生第一处理视频流; 第二视频信号处理器（56,58），用于处理第二视频流以产生相对于第一处理视频流具有延迟的第二处理视频流; 第一缓冲器（74），用于缓冲第一处理后的音频流以提供去抖动; 呈现器（78,80），用于响应于频道改变命令呈现第一处理后的音频流和第二已处理视频流; 用于在渲染器开始渲染第二处理视频流之后从第二处理视频流切换到第一处理视频流并由此使渲染器开始渲染第一处理视频流的切换器; 并且由此在频道改变事件期间保持第一处理的音频流和第一处理的视频流之间的同步。

6. 发明申请

WO2008088305A3 VIDEO DATA LOSS RECOVERY USING LOW BIT RATE STREAM IN AN IPTV SYSTEM 审中-公开
标题翻译：在IPTV系统中使用低比特率流恢复视频数据丢失
公开(公告)号：WO2008088305A3
公开(公告)日：2008-10-16
申请号：PCT/US2006048632
申请日：2006-12-20
申请人： THOMSON RES FUNDING CORP , DAI JIWANG , LI JOHN QIANG , STEIN ALAN JAY
发明人： DAI JIWANG , LI JOHN QIANG , STEIN ALAN JAY
IPC分类号： H04N7/66 , H04N21/236 , H04N19/89 , H04N21/2381 , H04N21/431
CPC分类号： H04N21/23418 , H04N19/159 , H04N19/172 , H04N19/37 , H04N19/61 , H04N21/23439 , H04N21/2365 , H04N21/4384 , H04N21/440263 , H04N21/6405 , H04N21/64322
摘要： A system and method for recovering from data loss are described including monitoring a first bit rate video data bit stream to determine if there is frame loss or damage, multiplexing decoding parameters of a second bit rate video data bit stream, the second bit rate video data bit stream and the first bit rate video data bit stream, if there is frame loss or damage, demultiplexing the first bit rate video data bit stream and the second bit rate video data bit stream, decoding the first bit rate video data bit stream, removing damaged frames from the first bit rate video data bit stream, decoding the second bit rate video data bit stream, up-sampling frames from said processed second bit rate video data bit stream if said processed second bit rate video data bit stream has a lower resolution than said processed first bit rate video data bit stream and merging frames from the second bit rate video data bit stream and the first bit rate video data bit stream.
摘要翻译：描述了一种用于从数据丢失中恢复的系统和方法，包括监视第一比特率视频数据比特流以确定是否存在帧丢失或损坏，复用第二比特率视频数据比特流的解码参数，第二比特率视频数据如果存在帧丢失或损坏，则将第一比特率视频数据比特流和第一比特率视频数据比特流解复用，解复用第一比特率视频数据比特流和第二比特率视频数据比特流，解码第一比特率视频数据比特流，去除如果所述经处理的第二比特率视频数据比特流具有较低分辨率，则从所述第一比特率视频数据比特流中解码所述第二比特率视频数据比特流，解码所述第二比特率视频数据比特流，比所述经处理的第一比特率视频数据比特流和来自所述第二比特率视频数据比特流和所述第一比特率视频数据比特流的帧合并。

7. 发明申请

WO2008013883A3 METHOD AND APPARATUS FOR FAST CHANNEL CHANGE FOR DIGITAL VIDEO 审中-公开
标题翻译：用于数字视频的快速频道改变的方法和设备
公开(公告)号：WO2008013883A3
公开(公告)日：2008-03-13
申请号：PCT/US2007016788
申请日：2007-07-25
申请人： THOMSON RES FUNDING CORP , STEIN ALAN JAY , DAI JIWANG , LI JOHN QIANG , LU XIUPING
发明人： STEIN ALAN JAY , DAI JIWANG , LI JOHN QIANG , LU XIUPING
IPC分类号： H04N7/24
CPC分类号： H04N21/4347 , H04N21/23424 , H04N21/2365 , H04N21/2662 , H04N21/4305 , H04N21/4307 , H04N21/434 , H04N21/4383 , H04N21/4384 , H04N21/44016
摘要： There are provided methods and apparatus for fast channel change for digital video. An apparatus includes at least one encoder (805, 810) for receiving normal video data and channel change video data and encoding the normal video data and the channel change video data in a normal video stream and a channel change video stream, respectively, using a common system clock to provide synchronization between the normal video stream and the channel change video stream. The normal video stream and the channel change video stream are encoded for transport separately at a transport level.
摘要翻译：提供了用于数字视频的快速频道改变的方法和设备。一种装置包括：至少一个编码器（805,810），用于接收正常视频数据和频道改变视频数据，并且分别使用正常视频流和频道改变视频流对正常视频数据和频道改变视频数据进行编码共同的系统时钟，以提供正常视频流和频道改变视频流之间的同步。正常视频流和频道改变视频流被编码以在传输级单独传输。

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