公开(公告)号：US5376968A

公开(公告)日：1994-12-27

申请号：US23251

申请日：1993-03-11

申请人： Allen Wu ,  Edward A. Krause ,  Woo H. Paik

发明人： Allen Wu ,  Edward A. Krause ,  Woo H. Paik

IPC分类号： H04N7/30 ,  G06T9/00 ,  H03M7/30 ,  H04N7/26 ,  H04N7/32 ,  H04N7/36 ,  H04N7/50 ,  H04N7/137

CPC分类号： H04N19/90 ,  H04N19/12 ,  H04N19/186 ,  H04N19/503 ,  H04N19/51 ,  H04N19/517 ,  H04N19/61

摘要： Digital video signals are adaptively compressed for communication to a receiver. Superblocks, each containing a plurality of blocks of digital video data, are compressed using PCM, DPCM with a general motion vector for the entire superblock, and DPCM with a specific motion vector for each block contained within a superblock. The result of each compression mode is compared after accounting for overhead data, to determine which results in the least amount of data for each block. These blocks are assembled into a superblock, and compared together with necessary overhead and motion vector data to the same superblock processed using all PCM as well as the superblock processed using all DPCM. The comparison determines which compression mode produces the least amount of data for the superblock. The most compact superblock is selected for transmission. The transmitted superblocks are decoded by a decoder that recovers the necessary motion vectors and overhead information which identifies the type of compression used to provide the superblock.

摘要翻译： 数字视频信号被自适应地压缩以用于与接收机的通信。 使用具有用于整个超块的通用运动矢量的PCM，DPCM以及包含在超级块内的每个块的特定运动矢量的DPCM对每个包含多个数字视频数据块的超块进行压缩。 在计算开销数据后，对每个压缩模式的结果进行比较，以确定每个块的数据量最少的结果。 这些块被组装成超级块，并且与必要的开销和运动矢量数据一起与使用所有PCM处理的相同的超级块以及使用所有DPCM处理的超级块进行比较。 该比较确定哪个压缩模式为超级块产生最少量的数据。 选择最紧凑的超级块进行传输。 发送的超块被解码器解码，该解码器恢复必要的运动矢量和标识用于提供超级块的压缩类型的开销信息。

公开(公告)号：US5093720A

公开(公告)日：1992-03-03

申请号：US570157

申请日：1990-08-20

申请人： Edward A. Krause ,  Woo H. Paik ,  Vincent Liu ,  James N. Esserman

发明人： Edward A. Krause ,  Woo H. Paik ,  Vincent Liu ,  James N. Esserman

IPC分类号： H04N7/26 ,  H04N7/36

CPC分类号： H04N19/105 ,  H04N19/112 ,  H04N19/137 ,  H04N19/51

摘要： Motion compensated coding of interlaced digital video signals is provided. Pixel data from successive interlaced video fields is compared to similarly situated pixel data in a plurality of previous fields to find a preferred counterpart for each current field set of pixel data. A prediction error signal is generated for each current field set of pixel data indicative of the difference between it and its preferred counterpart from a previous field. Each prediction error signal is encoded with data indicative of the previous field in which the preferred counterpart can be found. In a preferred embodiment, each set of current field pixel data is compared to a range of similarly situated pixels in each of the previous fields, and the prediction error signal is also encoded with motion vector data indicative of the location of the preferred counterpart in its previous field.

摘要翻译： 提供了隔行数字视频信号的运动补偿编码。 将来自连续隔行视频场的像素数据与多个先前场中的类似位置的像素数据进行比较，以找到每个当前像素数据集合的优选对应物。 针对象征数据的每个当前场集合生成一个预测误差信号，指示其与先前场的优先对应物之间的差异。 每个预测误差信号用指示可以找到优选对应物的前一场的数据进行编码。 在优选实施例中，将每组当前场像素数据与先前场的每个场中的类似位置的像素的范围进行比较，并且预测误差信号也用表示优选对应物位置的运动矢量数据进行编码 以前的字段。

公开(公告)号：US5091782A

公开(公告)日：1992-02-25

申请号：US507258

申请日：1990-04-09

申请人： Edward A. Krause ,  Woo H. Paik

发明人： Edward A. Krause ,  Woo H. Paik

IPC分类号： H04N1/413 ,  G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  H04N7/32 ,  H04N7/50 ,  H04N11/04

CPC分类号： H04N19/154 ,  H04N19/112 ,  H04N19/136 ,  H04N19/176 ,  H04N19/61 ,  H04N19/60

摘要： The compression of successive blocks of digital data is optimized by selecting between different compression algorithms or different data formats on a block-by-block basis. In one application, digitized interlaced video signals are processed for transmission in a compressed form. A set of pixel data presented in a field format is compressed to provide a first compressed video signal. The set of pixel data is also presented in a frame format and compressed to provide a second compressed video signal. Errors are evaluated in the first and second compressed video signals. The compressed video signal having the least error is selected for further processing. The technique is repeated for successive sets of pixel data and the selected signals are encoded to identify them as field formatted or frame formatted signals. The encoded selected signals are then combined to provide a compressed video signal data stream for transmission. Apparatus for receiving and decoding the signals is also disclosed.

公开(公告)号：US07852854B2

公开(公告)日：2010-12-14

申请号：US11388833

申请日：2006-03-23

申请人： Peter Monta ,  Edward A. Krause ,  Adam Tom

发明人： Peter Monta ,  Edward A. Krause ,  Adam Tom

IPC分类号： H04L12/56

CPC分类号： H04N21/42607 ,  H04N19/40 ,  H04N19/42 ,  H04N19/423 ,  H04N19/436 ,  H04N19/61 ,  H04N21/23406 ,  H04N21/23424 ,  H04N21/262 ,  H04N21/26208 ,  H04N21/44016

摘要： The present invention relates generally to the processing of multiple data streams with common resources. More particularly, this invention relates to a technique for time-multiplexed processing of, for example, multiple digital video programs. In one embodiment, an exemplary method provides for time-multiplexed processing of a set of digital streams includes storing each received packet in a random access memory. For each stream, the deadline for the arrival of the next packet at the receiver is determined and a priority based on the deadline is assigned. The stream with the highest assigned priority is identified as an identified stream. In some embodiments, the processing state of the identified stream is then restored. One or more packets of data corresponding to the identified stream are retrieved from random access memory to produce retrieved packets. The processing state is saved after the retrieved packets have been processed.

摘要翻译： 本发明一般涉及具有共同资源的多个数据流的处理。 更具体地，本发明涉及例如多个数字视频节目的时分复用处理技术。 在一个实施例中，示例性方法提供一组数字流的时间复用处理，包括将每个接收的分组存储在随机存取存储器中。 对于每个流，确定下一个分组在接收机处到达的截止日期，并且分配基于截止日期的优先级。 具有最高分配优先级的流被标识为识别的流。 在一些实施例中，然后恢复所识别的流的处理状态。 从所述随机存取存储器检索对应于所识别的流的一个或多个数据包，以产生检索到的数据包。 处理状态在检索到的数据包处理完毕后保存。

公开(公告)号：US07804856B2

公开(公告)日：2010-09-28

申请号：US11123677

申请日：2005-05-06

申请人： Edward A. Krause ,  Peter Monta ,  Adam Tom

发明人： Edward A. Krause ,  Peter Monta ,  Adam Tom

IPC分类号： H04H20/28 ,  H04J3/02

CPC分类号： H04L29/06027 ,  H04L63/0428 ,  H04L65/4076 ,  H04L65/605 ,  H04L65/80 ,  H04N7/1675 ,  H04N7/17318 ,  H04N7/17336 ,  H04N19/146 ,  H04N19/40 ,  H04N19/48 ,  H04N19/61 ,  H04N21/2225 ,  H04N21/23103 ,  H04N21/23424 ,  H04N21/2347 ,  H04N21/23608 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2405 ,  H04N21/26216 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/4344 ,  H04N21/4347 ,  H04N21/44016 ,  H04N21/47202 ,  H04N21/6118 ,  H04N21/63345 ,  H04N21/812

摘要： An advanced video multiplexer system designed and optimized for next generation on-demand video distribution is described. The system optimizes identifies a multi-program transport stream best able to accommodate new seesions based upon Quality of Service (QoS) and QAM utilization ratios. MPTS channels are rebalanced via re-grouping and transrating as necessary to optimize bandwidth utilization. Multiple video formats are supported via built-in transcoding. The multiplexer manages encryption resources and supports new sessions using previously allocated encryption resources where possible. Sessions can be grouped into encryption channels either by using a single authorization tier per channel policy, or by requiring all clients of the group to be in physically separated service groups. Encryption channels can be released when a channel no longer serves any clients or when one or more other channels that have been assigned the same entitlement can accommodate any remaining clients.

摘要翻译： 描述了针对下一代按需视频分发设计和优化的高级视频多路复用器系统。 该系统优化识别出最佳能够根据服务质量（QoS）和QAM利用率来适应新视角的多节目传输流。 MPTS通道可以根据需要通过重新分组和转换进行重新平衡，以优化带宽利用率。 通过内置转码支持多种视频格式。 多路复用器管理加密资源，并在可能的情况下使用先前分配的加密资源支持新会话。 会话可以通过使用每个渠道策略的单个授权层，或者要求组中的所有客户端在物理上分离的服务组中，将其分组到加密通道中。 当通道不再为任何客户端服务时，或者一个或多个其他被分配了相同授权的渠道可以容纳任何剩余的客户端时，可以释放加密通道。

公开(公告)号：US20080072267A1

公开(公告)日：2008-03-20

申请号：US11881209

申请日：2007-07-25

申请人： Peter Monta ,  Edward A. Krause

发明人： Peter Monta ,  Edward A. Krause

IPC分类号： H04N7/173

CPC分类号： H04N19/12 ,  H04N19/124 ,  H04N19/159 ,  H04N19/40 ,  H04N21/4344 ,  H04N21/440254

摘要： Methods, apparatus, and systems for modifying the data rate of a video signal are provided. A compressed video signal is received. A closed-loop transrating path for modifying a data rate of the video signal and an open-loop transrating path for modifying the data rate of the video signal are provided. One of the open-loop transrating path or the closed-loop transrating path is selected for modifying the data rate of at least a portion of the video signal. Pixel quantization error control may be provided in the closed loop transrating path.

摘要翻译： 提供了用于修改视频信号的数据速率的方法，装置和系统。 接收压缩视频信号。 提供了一种用于修改视频信号的数据速率和用于修改视频信号的数据速率的开环转换路径的闭环转换路径。 选择开环转移路径或闭环转移路径中的一个来修改视频信号的至少一部分的数据速率。 可以在闭环转移路径中提供像素量化误差控制。

公开(公告)号：US5291281A

公开(公告)日：1994-03-01

申请号：US900904

申请日：1992-06-18

申请人： Woo H. Paik ,  Edward A. Krause ,  Vincent Liu

发明人： Woo H. Paik ,  Edward A. Krause ,  Vincent Liu

IPC分类号： H03M7/30 ,  G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  H04N7/32 ,  H04N7/50 ,  H04N7/133

CPC分类号： H04N19/102 ,  H04N19/10 ,  H04N19/103 ,  H04N19/124 ,  H04N19/14 ,  H04N19/15 ,  H04N19/176 ,  H04N19/192 ,  H04N19/50 ,  H04N19/60 ,  H04N19/61 ,  H04N19/146 ,  H04N19/30 ,  H04N19/39

摘要： An apparatus and method for adaptively compressing blocks of video image data provide a local coding level for use in compressing successive blocks of video image data. Each block is preliminarily compressed using a global coding level. The preliminarily compressed data is processed to provide a measure of the randomness of an image area represented by the block of video image data. A local coding level is generated based on the randomness measure. The video image data is then compressed using the local coding level to provide compressed data for transmission. One or more intermediate compression stages can be provided, each generating an intermediate coding level, to better refine the randomness measure for use in generating the local coding level.

摘要翻译： 用于自适应地压缩视频图像数据块的装置和方法提供用于压缩视频图像数据的连续块的本地编码级别。 使用全局编码级别预先压缩每个块。 处理预先压缩的数据以提供由视频图像数据块表示的图像区域的随机性的度量。 基于随机度量产生局部编码级别。 然后使用本地编码级压缩视频图像数据，以提供用于传输的压缩数据。 可以提供一个或多个中间压缩级，每个中间压缩级产生中间编码级别，以便更好地改进用于产生本地编码级别的随机性度量。

公开(公告)号：US5068729A

公开(公告)日：1991-11-26

申请号：US413881

申请日：1989-10-02

申请人： Ron D. Katznelson ,  Edward A. Krause

发明人： Ron D. Katznelson ,  Edward A. Krause

IPC分类号： H04N7/015 ,  G09G1/16 ,  H04N7/083 ,  H04N7/087 ,  H04N7/088 ,  H04N11/24

CPC分类号： H04N11/008

摘要： A wide-aspect-ratio television signal is encoded for transmission within a standard-television-signal-compatible format is encoded by dividing the television signal into center-panel segments from which the horizontally central portion of a television picture produced from said wide-aspect-ratio television signal is displayed in accordance with a standard-television-signal aspect ratio, and side panel segments from which the left and right side portions of the television picture produced from said wide-aspect-ratio television signal are displayed in accordance with the wide aspect ratio; arranging the center panel segments for transmission in the standard-television-signal-compatible format; reducing the spatial frequency extent of at least a portion of said side-panel segments by vertically expanding said portion; and inserting said vertically expanded portion of the side-panel segments for transmission during transmission of said center-panel segments in a manner that enables said inserted portion of the side panel segments to be separated from the center panel segments. The center-panel segments are transmitted in a temporal-vertical-frequency domain that includes Fukinuki holes; and the vertically expanded portion is inserted within said Fukinuki holes. The signal is further encoded by producing an augmentation signal from the side panel segments, which includes side-panel chrominance information and low-horizontal-frequency and low-vertical-frequency side-panel luminance information; modulating the side-panel chrominance information of said augmentation signal within a predetermined frequency band that does not overlap said low-horizontal-frequency and low-vertical-frequency side-panel luminance information; and inserting said modulated augmentation signal within the vertical blanking interval for transmission. Different encoding and separation modes are used when the source is 24 frame per second film exploiting the 3:2 pull down scheme.

公开(公告)号：US4881125A

公开(公告)日：1989-11-14

申请号：US258238

申请日：1988-10-14

申请人： Edward A. Krause

发明人： Edward A. Krause

IPC分类号： H04N5/253 ,  H04N5/44 ,  H04N7/01 ,  H04N9/11

CPC分类号： H04N7/012 ,  H04N7/0112 ,  H04N9/11

摘要： A system for providing a progressive-scan video display signal from a received video signal derived from a film having successive image frames by producing odd and even video fields from each film frame, with the video fields being produced at a greater rate than the film frame rate and in a repetitive sequentially varying relationship to the film frames. The system includes one-field delay devices for delaying each field of the received video signal; and a switching circuit and one-line FIFO stacks for combining the received and delayed video fields to provide a progressive-scan video frame signal at the video field rate, in which alternate lines are derived respectively from odd and even video fields. A film-sync detection device determines the positions of the received video fields in the repetitive sequence; and a control circuit coupled to the film-sync detection device controls the switching circuit and the one-line FIFO stacks in accordance with said determined field positions to vary the combinations of the received and delayed video fields in accordance with the repetitive sequentially varying relationship of the received video fields to the film frames from which they were derived.

摘要翻译： 一种用于通过从每个胶片帧产生奇数和偶数视频场，从具有连续图像帧的胶片导出的接收到的视频信号中提供逐行扫描视频显示信号的系统，其中以比胶片帧更大的速率产生视频场 速率和与电影帧重复的顺序变化的关系。 该系统包括用于延迟接收的视频信号的每个场的一场延迟装置; 以及用于组合接收和延迟的视频场以提供视频场速率的逐行扫描视频帧信号的开关电路和单行FIFO堆栈，其中分别从奇数和偶数视频场导出交替线。 电影同步检测装置确定重复序列中所接收的视频字段的位置; 并且耦合到胶片同步检测装置的控制电路根据所述确定的字段位置来控制开关电路和单行FIFO堆栈，以根据重复的顺序变化的关系改变接收和延迟的视频字段的组合 接收到的视频字段到它们被派生的电影帧。

公开(公告)号：US08161519B2

公开(公告)日：2012-04-17

申请号：US11123780

申请日：2005-05-06

申请人： Edward A. Krause ,  Peter Monta ,  Adam Tom

发明人： Edward A. Krause ,  Peter Monta ,  Adam Tom

IPC分类号： H04N7/16

CPC分类号： H04L29/06027 ,  H04L63/0428 ,  H04L65/4076 ,  H04L65/605 ,  H04L65/80 ,  H04N7/1675 ,  H04N7/17318 ,  H04N7/17336 ,  H04N19/146 ,  H04N19/40 ,  H04N19/48 ,  H04N19/61 ,  H04N21/2225 ,  H04N21/23103 ,  H04N21/23424 ,  H04N21/2347 ,  H04N21/23608 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2405 ,  H04N21/26216 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/4344 ,  H04N21/4347 ,  H04N21/44016 ,  H04N21/47202 ,  H04N21/6118 ,  H04N21/63345 ,  H04N21/812

摘要： An advanced multiplexer designed and optimized for next generation on-demand video distribution is described. Features and capabilities include low-latency client interactions, quality of service management, session based encryption management, support for multiple video formats, and support for multiple video decoding standards. Indicators are embedded in new video segments to identify start-of-segment transition points, enabling rapid transitions from one video segment to another. Low-latency operation is achieved by rapid switching, and by coordinating flushing of video buffers and buffer restoration.

摘要翻译： 描述了为下一代点播视频分发设计和优化的高级多路复用器。 特性和功能包括低延迟客户端交互，服务质量管理，基于会话的加密管理，支持多种视频格式以及支持多种视频解码标准。 指标嵌入到新的视频片段中，以识别片段的转换点，实现从一个视频片段到另一个视频片段的快速转换。 低延迟操作通过快速切换，以及通过协调视频缓冲区和缓冲区恢复的刷新来实现。