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1. 发明授权

US07738551B2 System and method for processing a high definition television (HDTV) image 有权
标题翻译：用于处理高分辨率电视（HDTV）图像的系统和方法
公开(公告)号：US07738551B2
公开(公告)日：2010-06-15
申请号：US10100394
申请日：2002-03-18
申请人： Barbara A. Hall , Agnes Y. Ngai , Robert L. Woodard
发明人： Barbara A. Hall , Agnes Y. Ngai , Robert L. Woodard
IPC分类号： H04N7/12 , H04N7/50
CPC分类号： H04N19/436
摘要： The present invention provides a system and method for processing a High Definition Television (HDTV) image. Specifically, the system and method of the present invention provides a plurality of programmable encoders connected in parallel and directly (i.e., gluelessly) attached to a HDTV video source. The system and method of the present invention allows a fall HDTV image to be received by each encoder at 74.25 MHz directly from the HDTV video source. Based on programming, each encoder will process only a portion of the full image.
摘要翻译：本发明提供了一种用于处理高分辨率电视（HDTV）图像的系统和方法。具体地说，本发明的系统和方法提供并联并直接连接到HDTV视频源（即，无胶带地）的多个可编程编码器。本发明的系统和方法允许每个编码器从HDTV视频源直接接收74.25MHz的下降HDTV图像。基于编程，每个编码器只处理完整图像的一部分。

2. 发明授权

US06823015B2 Macroblock coding using luminance date in analyzing temporal redundancy of picture, biased by chrominance data 失效
标题翻译：使用亮度日期分析图像的时间冗余的宏块编码，由色度数据偏置
公开(公告)号：US06823015B2
公开(公告)日：2004-11-23
申请号：US10055395
申请日：2002-01-23
申请人： Barbara A. Hall , Agnes Y. Ngai , John M. Sutton , Edward F. Westermann
发明人： Barbara A. Hall , Agnes Y. Ngai , John M. Sutton , Edward F. Westermann
IPC分类号： H04B766
CPC分类号： H04N19/162 , H04N19/107 , H04N19/186 , H04N19/61
摘要： A technique is provided for encoding macroblocks of a frame of a sequence of video frames initially employing luminance data only to analyze temporal redundancy of the macroblocks within the frame. Upon deciding to code at least one macroblock as a non-intra macroblock, the technique includes considering whether to switch the coding decision for the at least one macroblock from non-intra to intra by evaluating chrominance data of the at least one macroblock. The evaluating of the chrominance data can include determining whether chrominance difference data, obtained by comparing chrominance values of a current macroblock with a reference macroblock, is greater than a user set chrominance difference threshold, and if so then the technique includes switching the macroblock coding decision. As a further qualification, the switching might occur only if the chrominance difference data is also greater than the corresponding luminance difference data.
摘要翻译：提供了一种技术，用于对最初采用亮度数据的视频帧序列的帧的宏块进行编码，以分析该帧内的宏块的时间冗余。在决定将至少一个宏块编码为非帧内宏块时，该技术包括考虑是否通过评估至少一个宏块的色度数据来将非至少一个宏块的编码决定从非帧内切换到帧内。色度数据的评估可以包括确定通过将当前宏块的色度值与参考宏块进行比较而获得的色差差数据是否大于用户设置的色差差阈值，如果是，则该技术包括切换宏块编码决策。作为进一步的鉴定，仅当色差差数据也大于对应的亮度差数据时才可能发生切换。

3. 发明授权

US07016413B2 Adaptively encoding a picture of contrasted complexity having normal video and noisy video portions 失效
标题翻译：对具有正常视频和嘈杂视频部分的对比度复杂的图像进行自适应编码
公开(公告)号：US07016413B2
公开(公告)日：2006-03-21
申请号：US09046121
申请日：1998-03-20
申请人： Barbara A. Hall , Agnes Y. Ngai , Charles J. Stein , Everett G. Vail, III , Edward F. Westermann
发明人： Barbara A. Hall , Agnes Y. Ngai , Charles J. Stein , Everett G. Vail, III , Edward F. Westermann
IPC分类号： H04N7/12
CPC分类号： H04N19/14 , H04N19/124 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/61
摘要： A technique is provided for adaptively encoding in hardware, software or a combination thereof a sequence of frames in real time, wherein one or more of the frames includes a random noise portion. The technique includes using statistics analysis to determine whether a current frame includes a random noise portion, and if so, to evaluate and dynamically encode each macroblock thereof based on activity level of the macroblock. Evaluating macroblock activity level includes determining whether its activity level exceeds a predefined threshold indicative of random noise. The macroblock is adaptively encoded by adjusting one or more coding parameters if the macroblock activity level is excessive and its target bitrate is low. For example, when the macroblock is within the random noise portion of the frame, the macroblock is biased towards being coded predictive and an adjusted quantization level is calculated to conserve bits used in encoding the macroblock, thereby moving encode bits from macroblocks within the random noise portion of the frame to macroblocks within the normal portion of the frame.
摘要翻译：提供了一种用于在硬件，软件或其组合中实时自适应地编码帧序列的技术，其中一个或多个帧包括随机噪声部分。该技术包括使用统计分析来确定当前帧是否包括随机噪声部分，并且如果是，则基于宏块的活动级别来评估和动态地对其每个宏块进行编码。评估宏块活动水平包括确定其活动水平是否超过指示随机噪声的预定阈值。如果宏块活动级别过大并且其目标比特率低，则通过调整一个或多个编码参数来自适应地编码宏块。例如，当宏块在帧的随机噪声部分内时，宏块偏向于被编码预测，并且计算调整的量化级别以节省用于编码宏块的比特，从而从随机噪声内的宏块移动编码比特帧的部分到框架的正常部分内的宏块。

4. 发明授权

US06895048B2 Adaptive encoding of a sequence of still frames or partially still frames within motion video 失效
标题翻译：运动视频内的静止帧或部分静止帧序列的自适应编码
公开(公告)号：US06895048B2
公开(公告)日：2005-05-17
申请号：US09046118
申请日：1998-03-20
申请人： Charles E. Boice , Barbara A. Hall , Agnes Y. Ngai , Charles J. Stein , Everett G. Vail, III , Edward F. Westermann
发明人： Charles E. Boice , Barbara A. Hall , Agnes Y. Ngai , Charles J. Stein , Everett G. Vail, III , Edward F. Westermann
IPC分类号： H04N7/46 , H04N7/50 , H04N7/12
CPC分类号： H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/85 , H04N19/86
摘要： Method, system and computer program product are provided for adaptively encoding in hardware, software or a combination thereof a series of still or partially still pictures using motion video encoding. A pre-encode statistics measurement unit is employed to derive statistics on each frame of the sequence of video frames to be encoded. The statistics are determinative of whether the frame comprises a still frame. If so, at least one controllable parameter to be used to encode the still frame is modified, and an encoding engine employs the at least one controllable parameter to encode the still frame so that pulsation artifacts are prevented between still frames of the series of still frames. Partial still picture encoding to prevent pulsation artifacts on a macroblock level is also addressed.
摘要翻译：提供方法，系统和计算机程序产品用于使用运动视频编码在硬件，软件或其组合中自适应地编码一系列静止或部分静止图像。采用预编码统计测量单元来导出要编码的视频帧序列的每个帧的统计。统计信息决定了帧是否包括静止帧。如果是这样，则修改用于对静止帧进行编码的至少一个可控参数，并且编码引擎使用至少一个可控参数对静止帧进行编码，从而在一系列静止帧的静止帧之间防止脉动伪影。还解决了用于防止宏块级别上的脉动伪像的部分静止图像编码。

5. 发明授权

US06269120B1 Method of precise buffer management for MPEG video splicing 失效
标题翻译： MPEG视频拼接的精确缓冲管理方法
公开(公告)号：US06269120B1
公开(公告)日：2001-07-31
申请号：US09046288
申请日：1998-03-23
申请人： Charles E. Boice , Barbara A. Hall , Agnes Y. Ngai , Edward F. Westermann
发明人： Charles E. Boice , Barbara A. Hall , Agnes Y. Ngai , Edward F. Westermann
IPC分类号： H04N712
CPC分类号： H04N21/23406 , H04N19/115 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/61 , H04N21/23424 , H04N21/44016
摘要： A method to insert or splice new pictures into an existing video stream is provided where the video stream is compressed according to the MPEG-2 video compression standard. The method assures that the new pictures will fit into the encoded stream in the space allotted without running over or under their given bit allocation. The method comprises of steps by which a number of new pictures may be encoded to a precise bit target given the number of free bits in the buffer at the start and end of the splicing, while preventing buffer overruns and under runs.
摘要翻译：提供了将新图像插入或拼接到现有视频流中的方法，其中视频流根据MPEG-2视频压缩标准被压缩。该方法确保新图片将适应分配的空间中的编码流，而不会在给定的位分配下运行。该方法包括以下步骤：为了在剪切的开始和结束时给定缓冲器中的空闲位的数目，可以将多个新图像编码到精确的位目标，同时防止缓冲区溢出和运行。

6. 发明授权

US5418916A Central processing unit checkpoint retry for store-in and store-through cache systems 失效
标题翻译：中央处理单元检查点重试用于存储和存储缓存系统
公开(公告)号：US5418916A
公开(公告)日：1995-05-23
申请号：US592624
申请日：1990-10-04
申请人： Barbara A. Hall , Kevin C. Huang , John D. Jabusch , Agnes Y. Ngai
发明人： Barbara A. Hall , Kevin C. Huang , John D. Jabusch , Agnes Y. Ngai
IPC分类号： G06F11/14 , G06F12/08
CPC分类号： G06F11/1407 , G06F12/0811
摘要： A checkpoint retry system for recovery from an error condition in a multiprocessor type central processing unit which may have a store-in or a store-through cache system. At detection of a checkpoint instruction, the system initiates action to save the content of the program status word, the floating point registers, the access registers and the general purpose registers until the store operations are completed for the checkpointed sequence. For processors which have a store-in cache, modified cache data is saved in a store buffer until the checkpointed instructions are completed and then written to a cache which is accessible to other processors in the system. For processors which utilize store-through cache, the modified data for the checkpointed instructions is also stored in the store buffer prior to storage in the system memory.
摘要翻译：用于从多处理器类型中央处理单元中的错误状态恢复的检查点重试系统，其可以具有存储或存储缓存系统。在检查点指令检测时，系统发起动作以保存程序状态字，浮点寄存器，访问寄存器和通用寄存器的内容，直到对检查点序列完成存储操作。对于具有存储缓存的处理器，将修改的高速缓存数据保存在存储缓冲区中，直到检查点指令完成，然后写入系统中其他处理器可访问的缓存。对于使用直通缓存的处理器，在存储在系统存储器中之前，检查点指令的修改数据也被存储在存储缓冲器中。

7. 发明授权

US06720893B2 Programmable output control of compressed data from encoder 失效
标题翻译：来自编码器的压缩数据的可编程输出控制
公开(公告)号：US06720893B2
公开(公告)日：2004-04-13
申请号：US10080828
申请日：2002-02-22
申请人： James D. Greenfield , Barbara A. Hall , Agnes Y. Ngai , Edward F. Westermann
发明人： James D. Greenfield , Barbara A. Hall , Agnes Y. Ngai , Edward F. Westermann
IPC分类号： H03M700
CPC分类号： H04N21/23406 , H04N21/44004
摘要： A technique is provided for programmably controlling output of compressed data from, for example, a video encoder. The technique can be implemented within the video encoder and includes buffering the compressed data in a write buffer, followed by transferring the compressed data from the write buffer to a read buffer. At least one programmable output mode is provided for selectively controlling output of the compressed data from the read buffer. When the read buffer is full, the compressed data is stored to the encoder's external memory to await transfer to the read buffer. The at least one programmable mode can include a slave mode, a gated master mode, a multi-cycle speed mode, and a paced master mode, which may be employed individually or in combination. A mechanism for inserting pad bytes of data into the compressed data is also provided.
摘要翻译：提供了一种用于可编程地控制来自例如视频编码器的压缩数据的输出的技术。该技术可以在视频编码器内实现，并且包括将压缩数据缓冲在写缓冲器中，随后将压缩数据从写缓冲器传送到读缓冲器。提供至少一个可编程输出模式以选择性地控制来自读取缓冲器的压缩数据的输出。当读取缓冲区已满时，压缩数据将存储到编码器的外部存储器中，以等待传输到读取缓冲区。至少一个可编程模式可以包括从模式，门控主模式，多循环速度模式和起搏主模式，其可以单独地或组合地使用。还提供了用于将数据的pad字节插入压缩数据的机制。

8. 发明授权

US06956899B2 Precise bit control apparatus with look-ahead for MPEG encoding 失效
标题翻译：精确的位控制装置，具有先进的MPEG编码
公开(公告)号：US06956899B2
公开(公告)日：2005-10-18
申请号：US09046285
申请日：1998-03-23
申请人： Barbara A. Hall , John A. Murdock , Agnes Y. Ngai , Edward F. Westermann
发明人： Barbara A. Hall , John A. Murdock , Agnes Y. Ngai , Edward F. Westermann
IPC分类号： G06T9/00 , H04N7/26 , H04N7/50 , H04N7/12
CPC分类号： H04N19/18 , H04N19/124 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/61 , H04N19/91
摘要： A method and system for encoding digital video picture data. In accordance with this method, the video picture data is partitioned into a group of blocks, at least some of those blocks are selected, one block at a time, and each of the selected blocks of data is encoded to form an encoded coefficient having an associated number of bits. The encoded coefficients are outputted, and an accumulated sum of the number of bits in the outputted encoded coefficients is kept. The outputting of the encoded coefficients is terminated at a defined time in order to prevent the accumulated sum from exceeding a given number.
摘要翻译：一种用于编码数字视频图像数据的方法和系统。根据该方法，视频图像数据被划分为一组块，至少选择这些块中的一些，一次一个块，并且每个所选择的数据块被编码以形成具有相关联的位数。输出编码的系数，并且保持输出的编码系数中的比特数的累加和。编码系数的输出在规定的时间终止，以防止累加和超过给定数。

9. 发明授权

US06788227B2 Apparatus for integrated cascade encoding 失效
标题翻译：集成级联编码装置
公开(公告)号：US06788227B2
公开(公告)日：2004-09-07
申请号：US10114012
申请日：2002-03-28
申请人： Barbara A. Hall , Agnes Y. Ngai , Michael P. Vachon
发明人： Barbara A. Hall , Agnes Y. Ngai , Michael P. Vachon
IPC分类号： H03M738
CPC分类号： H03M7/30 , H04N19/12 , H04N19/15 , H04N19/172 , H04N19/176 , H04N19/194 , H04N19/196 , H04N19/61
摘要： Two encoders are used in cascade wherein one encoder functions as a preprocessor for the other by collecting statistics concerning partially processed input data. The statistics thus derived are autonomously transferred to a second decoder in a self-synchronized manner, avoiding any need for external glue logic, and utilized to select encoding options for encoding and/or compressing the data so that the quality of encoded data is optimized based on the content of current input data.
摘要翻译：两个编码器用于级联，其中一个编码器通过收集关于部分处理的输入数据的统计信息作为另一个的预处理器。这样导出的统计量以自同步的方式被自动地转移到第二解码器，避免了对外部粘合逻辑的任何需要，并且用于选择用于对数据进行编码和/或压缩的编码选项，从而基于编码数据的质量被优化关于当前输入数据的内容。

10. 发明授权

US6020934A Motion estimation architecture for area and power reduction 失效
标题翻译：用于区域和功率降低的运动估计架构
公开(公告)号：US6020934A
公开(公告)日：2000-02-01
申请号：US46291
申请日：1998-03-23
申请人： James D. Greenfield , Barbara A. Hall , John A. Murdock , Agnes Y. Ngai , Stephen P. Pokrinchak
发明人： James D. Greenfield , Barbara A. Hall , John A. Murdock , Agnes Y. Ngai , Stephen P. Pokrinchak
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50 , H04N7/34
CPC分类号： H04N19/567 , H04N19/42 , H04N19/43 , H04N19/51 , H04N19/61
摘要： A method for compensating for reduced picture quality when combining a multi-chip encoding chipset into a single integrated semiconductor IC. The method includes additional functions provided on the single IC to compensate for the negative effects on picture quality produced as a result of rounding 8 bit luminance pixel data to 5 bits, where the luminance data values are supplied as input to the search function. The additional functions are collectively referred to as motion biasing and are applied to influence the choice of a "best match" motion type, which is well known in the art. The biasing is performed by the addition of a weight factor to a total difference result that is calculated by the search function. The biasing is applied only for the purpose of influencing the choice of a reference frame that is not necessarily the frame which produces an optimal motion vector, but rather will result in using fewer bits to encode macroblocks.
摘要翻译：一种用于在将多芯片编码芯片组合成单个集成半导体IC时补偿降低的图像质量的方法。该方法包括在单个IC上提供的附加功能，以补偿由于将8位亮度像素数据舍入到5位而产生的图像质量的负面影响，其中将亮度数据值作为输入提供给搜索功能。附加功能统称为运动偏移，并且被应用以影响本领域中公知的“最佳匹配”运动类型的选择。通过将加权因子加到通过搜索函数计算的总差值结果来执行偏置。偏置仅用于影响参考帧的选择，该参考帧不一定是产生最佳运动矢量的帧，而是将导致使用较少位来编码宏块。

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