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1. 发明申请

US20090231439A1 Method for Propagating Data Through a Video Stream 审中-公开
标题翻译：通过视频流传播数据的方法
公开(公告)号：US20090231439A1
公开(公告)日：2009-09-17
申请号：US12404043
申请日：2009-03-13
申请人： Arkady Kopansky , Yanjun Xu , Jae-Beom Lee , William Wei-lian Lin
发明人： Arkady Kopansky , Yanjun Xu , Jae-Beom Lee , William Wei-lian Lin
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： A method for propagating an error between video frames of a video stream wherein data in a single macroblock is propagated from a first video frame to a second video frame via inter-frame coding. Once integrated into the second video frame, the macroblock may be utilized as the basis for intra-frame coding within the second video frame. Intra-frame coding within the second video frame allows for any error in the data contained in the macroblock to propagate through the second video frame while minimizing the amount of the second video frame dedicated to propagation the existing error(s). Embodiments of the present invention are directed to the application of stress to a decoder, to cause an error in the decoder, and propagation of the error between video frames of a video stream.
摘要翻译：一种用于在视频流的视频帧之间传播错误的方法，其中单个宏块中的数据经由帧间编码从第一视频帧传播到第二视频帧。一旦集成到第二视频帧中，宏块可以用作第二视频帧内的帧内编码的基础。第二视频帧内的帧内编码允许包含在宏块中的数据中的任何错误通过第二视频帧传播，同时最小化专用于传播现有错误的第二视频帧的量。本发明的实施例涉及将压力应用于解码器，导致解码器中的错误以及视频流的视频帧之间的误差的传播。

2. 发明授权

US5841478A Code sequence detection in a trellis decoder 失效
标题翻译：网格解码器中的码序列检测
公开(公告)号：US5841478A
公开(公告)日：1998-11-24
申请号：US629673
申请日：1996-04-09
申请人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
发明人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
IPC分类号： H04N7/26 , H03M13/23 , H03M13/25 , H03M13/35 , H03M13/39 , H03M13/41 , H04L25/08 , H04N20060101 , H04N5/46 , H04N7/30 , H04N19/00 , H04N21/2383 , H04N21/438 , H04N5/21
CPC分类号： H04N21/2383 , H03M13/35 , H03M13/39 , H04N21/4382
摘要： An adaptive trellis decoder seamlessly switches between multiple operational modes. The trellis decoder employs a code sequence detection system that detects codes in input interleaved packet data. The code sequence detection system also reduces the delay (latency) between the input of encoded data and the output of decoded data. The code sequence detection system processes video data in the form of groups of interleaved trellis encoded data packets and includes a traceback network that identifies a sequence of antecedent trellis states, in accordance with a state transition trellis. The traceback network identifies the antecedent states for collocated interleaved packets in response to decision data associated with trellis state transitions. Output trellis decoded data is provided in response to the identified sequence of antecedent trellis states. The decoder can also provide a plurality of trellis decoded data sequences. The decoded data sequences are provided by identifying corresponding antecedent trellis state sequences with delayed decision data in accordance with a state transition trellis. One of the decoded data sequences is identified with a pointer updated by identifying antecedent trellis states with the decision data.
摘要翻译：自适应网格解码器在多种操作模式之间无缝切换。网格解码器采用代码序列检测系统，其检测输入交错分组数据中的代码。代码序列检测系统还减少了编码数据的输入和解码数据的输出之间的延迟（等待时间）。代码序列检测系统以交织网格编码数据分组的形式处理视频数据，并且包括根据状态转换网格来识别先行格状态序列的追溯网络。回溯网络响应于与网格状态转换相关联的决策数据来识别并置交错分组的先行状态。响应于所识别的先行网格状态序列来提供输出格状解码数据。解码器还可以提供多个网格解码的数据序列。解码的数据序列通过根据状态转换网格识别具有延迟的判定数据的相应先行格状态序列来提供。解码的数据序列中的一个用通过使用判定数据识别先行格状态来更新的指针来识别。

3. 发明授权

US5914988A Digital packet data trellis decoder 失效
标题翻译：数字分组数据网格解码器
公开(公告)号：US5914988A
公开(公告)日：1999-06-22
申请号：US629681
申请日：1996-04-09
申请人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
发明人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
IPC分类号： H04N7/26 , H03M13/23 , H03M13/25 , H03M13/35 , H03M13/39 , H03M13/41 , H04L25/08 , H04N20060101 , H04N5/46 , H04N7/30 , H04N19/00 , H04N21/2383 , H04N21/438 , H04L27/06
CPC分类号： H04N21/2383 , H03M13/35 , H03M13/39 , H04N21/4382
摘要： An adaptive trellis decoder system employs a state transition trellis with a predetermined number of states for decoding a group of interleaved data packets. The trellis decoder system also accommodates data interruptions and transitions between different types of data. The system decodes groups of interleaved trellis encoded data packets with a single trellis decoder in response to a synchronization signal derived from the interleaved encoded data. The decoder employs a state transition trellis with a predetermined number of states. The state transition trellis may be reset to a predetermined state in response to a detected synchronization interval in the encoded data. The decoder may also decode re-aligned data produced by removing intervening synchronization intervals from the interleaved encoded data, in response to a detected synchronization interval.
摘要翻译：自适应网格解码器系统采用具有预定数量状态的状态转换网格来解码一组交错数据分组。网格解码器系统还适应不同类型数据之间的数据中断和转换。该系统响应于从交织的编码数据导出的同步信号，用单个网格解码器解码交织网格编码数据分组的组。解码器采用具有预定数量状态的状态转换网格。响应于编码数据中检测到的同步间隔，可以将状态转换网格复位到预定状态。响应于检测到的同步间隔，解码器还可以解码通过从交织的编码数据中移除中间同步间隔而产生的再对齐数据。

4. 发明授权

US5841819A Viterbi decoder for digital packet signals 失效
标题翻译：用于数字分组信号的维特比解码器
公开(公告)号：US5841819A
公开(公告)日：1998-11-24
申请号：US629672
申请日：1996-04-09
申请人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
发明人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
IPC分类号： H04N7/26 , H03M13/23 , H03M13/25 , H03M13/35 , H03M13/39 , H03M13/41 , H04L25/08 , H04N20060101 , H04N5/46 , H04N7/30 , H04N19/00 , H04N21/2383 , H04N21/438 , G06F11/10 , H03M13/12
CPC分类号： H04N21/2383 , H03M13/35 , H03M13/39 , H04N21/4382
摘要： An adaptive trellis decoder seamlessly switches between multiple input signal formats. The trellis decoder employs a code sequence detection system, described in the context of an exemplary Viterbi decoding system, that detects codes in an input interleaved packet data signal. The code sequence detection system also reduces the delay (latency) between the input of encoded data and the output of decoded data. The code sequence detection system provides branch metric values in response to the input interleaved packet data signal which exhibits one of a plurality of signal formats, e.g., partial response and normal formats. A Viterbi decoder decodes the packet data signal to produce a decoded output in response to the branch metric values which include a substantially replicated value associated with one of the formats. The Viterbi decoder includes a comparison network that provides decision data in response to branch metric values associated with the trellis encoded data packets. The decision data is organized by trellis state and by data packet and is associated with trellis state transitions. A traceback network provides decoded data in response to the organized decision data.
摘要翻译：自适应网格解码器在多种输入信号格式之间无缝切换。网格解码器采用在示例性维特比解码系统的上下文中描述的代码序列检测系统，其检测输入交错分组数据信号中的代码。代码序列检测系统还减少了编码数据的输入和解码数据的输出之间的延迟（等待时间）。代码序列检测系统响应于输入交织的分组数据信号提供分支度量值，该数据信号呈现多种信号格式之一，例如部分响应和正常格式。维特比解码器对分组数据信号进行解码，以响应于包括与一种格式相关联的基本上复制的值的分支度量值来产生解码输出。维特比解码器包括比较网络，其响应于与网格编码的数据分组相关联的分支度量值提供决策数据。决策数据由网格状态和数据分组组织，并与网格状态转换相关联。回溯网络响应于有组织的决策数据提供解码数据。

5. 发明授权

US5838729A Multiple mode trellis decoder for a digital signal processing system 失效
标题翻译：用于数字信号处理系统的多模式网格解码器
公开(公告)号：US5838729A
公开(公告)日：1998-11-17
申请号：US629680
申请日：1996-04-09
申请人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
发明人： Keren Hu , William Wei-Lian Lin , Maurice David Caldwell
IPC分类号： H04N7/26 , H03M13/23 , H03M13/25 , H03M13/35 , H03M13/39 , H03M13/41 , H04L25/08 , H04N20060101 , H04N5/46 , H04N7/30 , H04N19/00 , H04N21/2383 , H04N21/438
CPC分类号： H04N21/2383 , H03M13/35 , H03M13/39 , H04N21/4382
摘要： An adaptive trellis decoder seamlessly switches between multiple operational modes. The decoder switches between multiple modes and accommodates data type transitions using a single state transition trellis with a predetermined number of states. The system decodes trellis encoded video data encoded in different formats respectively containing different numbers of levels associated with different modes. The decoder system adaptively operates in response to a configuration signal distinguishing between the modes, and employs a state transition trellis with the same number of trellis decoding states for decoding encoded data of different formats. The state transition decoding trellis may also be reset to a predetermined state in response to a synchronization signal generated as a result of a transition from one type of data to another or in response to a mode change.
摘要翻译：自适应网格解码器在多种操作模式之间无缝切换。解码器在多个模式之间切换，并且使用具有预定数量的状态的单个状态转换网格来适应数据类型转换。系统解码以不同格式编码的网格编码视频数据，分别包含与不同模式相关联的不同数量的级别。解码器系统响应于区分模式的配置信号自适应地操作，并且采用具有相同数量的网格解码状态的状态转换网格来解码不同格式的编码数据。响应于作为从一种类型的数据转换到另一种数据或者响应于模式改变而产生的同步信号，状态转换解码网格也可以被重置为预定状态。

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