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51. 发明申请

US20130100969A1 JITTER BUFFER 有权
标题翻译：抖动缓冲区
公开(公告)号：US20130100969A1
公开(公告)日：2013-04-25
申请号：US13594668
申请日：2012-08-24
申请人： Renat Vafin , Mattias Nilsson , Soren Vang Andersen , Andrei Jefremov
发明人： Renat Vafin , Mattias Nilsson , Soren Vang Andersen , Andrei Jefremov
IPC分类号： H04J3/06
CPC分类号： H04L1/205 , H04J3/06 , H04L1/00 , H04L1/0009 , H04L1/0018 , H04L43/087 , H04L65/80
摘要： Methods, transmitter, receiver and computer program product for transmitting or receiving data of a real-time communication event, the data being transmitted from the transmitter to a jitter buffer of the receiver. At least one processing parameter describing how data is to be processed for transmission from the transmitter to the jitter buffer in the real-time communication event is determined at the transmitter. Data is processed for transmission from the transmitter to the jitter buffer in accordance with the determined at least one processing parameter. Control information based on the determined at least one processing parameter is transmitted from the transmitter to the receiver, wherein the control information is for use by the receiver to control a state of the jitter buffer. The processed data is transmitted from the transmitter to the jitter buffer of the receiver in the real-time communication event.
摘要翻译：用于发送或接收实时通信事件数据的方法，发射机，接收机和计算机程序产品，数据从发射机发射到接收机的抖动缓冲器。在发射机处确定至少一个处理参数，描述如何处理在实时通信事件中从发射机到抖动缓冲器的传输的数据。处理数据以根据所确定的至少一个处理参数从发送器发送到抖动缓冲器。基于确定的至少一个处理参数的控制信息从发射机发送到接收机，其中控制信息供接收机使用以控制抖动缓冲器的状态。处理的数据在实时通信事件中从发送器发送到接收器的抖动缓冲器。

52. 发明申请

US20120328002A1 Video Coding 有权
标题翻译：视频编码
公开(公告)号：US20120328002A1
公开(公告)日：2012-12-27
申请号：US13274904
申请日：2011-10-17
申请人： Renat Vafin , Mattias Nilsson , Soren Vang Andersen
发明人： Renat Vafin , Mattias Nilsson , Soren Vang Andersen
IPC分类号： H04N7/26
CPC分类号： H04N19/194 , H04N19/103 , H04N19/147 , H04N19/156 , H04N19/176 , H04N19/19
摘要： A method of encoding a video stream comprising: for each of a plurality of first image portions to be encoded in an outgoing video stream, selecting a preferred one of a set of potential encoding modes using a first process comprising an estimation of distortion of the first image portion and a measure of bit rate required to encode the first image portion for each of the first image portion's potential encoding modes; encoding each of the first image portions of the outgoing stream using the respective selected encoding mode; for each of a plurality of second image portions of a video stream, applying a second process comprising at least an estimation of distortion of the second image portion; and using an output of the second process resulting from the second image portions to bias the first process in said selection of the encoding modes for the first portions.
摘要翻译：一种对视频流进行编码的方法，包括：对于要在输出视频流中进行编码的多个第一图像部分中的每一个，使用第一处理选择一组潜在编码模式中的优选模式，所述第一处理包括估计第一图像部分和对于第一图像部分的潜在编码模式中的每一个对第一图像部分进行编码所需的比特率的度量; 使用各自选择的编码模式对所述输出流的每个所述第一图像部分进行编码; 对于视频流的多个第二图像部分中的每一个，应用包括至少第二图像部分的失真估计的第二处理; 以及使用由所述第二图像部分产生的所述第二处理的输出来偏置所述第一部分的所述编码模式的所述选择中的所述第一处理。

53. 发明申请

US20120327997A1 Video Coding 有权
标题翻译：视频编码
公开(公告)号：US20120327997A1
公开(公告)日：2012-12-27
申请号：US13274922
申请日：2011-10-17
申请人： Mattias Nilsson , Renat Vafin , Soren Vang Andersen
发明人： Mattias Nilsson , Renat Vafin , Soren Vang Andersen
IPC分类号： H04N7/26
CPC分类号： H04N19/89 , H04N19/102 , H04N19/103 , H04N19/134 , H04N19/147 , H04N19/166 , H04N19/176 , H04N19/19
摘要： A video coding method includes for each target image portion to be encoded, selecting a preferred one of a set of encoding modes by optimizing a function comprising an estimate of distortion and a measure of bit rate required to encode the target image portion, the encoding modes comprising at least an intra frame mode and an inter frame mode; and transmitting the encoded video stream over a lossy channel. The estimate of distortion is based on a contribution from possible new loss over the channel comprising possible loss of the target block, and on a contribution from possible past loss over the channel comprising possible loss in a history of the encoded video stream upon which decoding of the target portion depends. The method includes accumulating the contribution from past loss over time, such that the estimate of distortion grows irrespective of the contribution from new loss.
摘要翻译：视频编码方法包括：对于要编码的每个目标图像部分，通过优化包括失真估计和编码目标图像部分所需的比特率的度量的函数来选择一组编码模式中的优选模式，编码模式至少包括帧内模式和帧间模式; 以及通过有损的信道发送编码的视频流。失真的估计是基于来自包括目标块的可能丢失的信道上的可能的新损失的贡献，以及可能的过去在信道上的损失的贡献，包括编码视频流的历史中可能的损失，目标部分依赖。该方法包括随着时间的推移累积过去损失的贡献，使得失真的估计增加而不受新损失的贡献。

54. 发明申请

US20120275585A1 Method of Transmitting Data in a Communication System 有权
标题翻译：在通信系统中传输数据的方法
公开(公告)号：US20120275585A1
公开(公告)日：2012-11-01
申请号：US13484655
申请日：2012-05-31
申请人： Christoffer Rodbro , Soren Skak Jensen , Jonas Lindblom , Renat Vafin , Soren Vang Andersen
发明人： Christoffer Rodbro , Soren Skak Jensen , Jonas Lindblom , Renat Vafin , Soren Vang Andersen
IPC分类号： H04M11/00 , H04B17/00
CPC分类号： H04L12/6418 , H04L12/66 , H04L2012/6489
摘要： Processing of a signal received at a node in a network is described in which effects on the signal caused by applying an action to a first part of the signal are quantified based on characteristics of the first part of the signal and effects on the signal caused by not applying the action to the first part of the signal are quantified based on characteristics of a second, subsequent part of the signal. The action may then be selectively applied either to the first part of the signal or to the second part of the signal based upon the quantifications. In some embodiments, the action is applied to a portion of the signal for which the effects on at least one measure of the signal quality are less detrimental.
摘要翻译：描述在网络中的节点处接收的信号的处理，其中通过对信号的第一部分施加动作而对信号产生的影响被量化，基于信号的第一部分的特性并对由基于信号的第二部分的特性，量化不对信号的第一部分施加的动作。然后可以基于定量将该动作选择性地应用于信号的第一部分或信号的第二部分。在一些实施例中，该动作被施加到信号的对信号质量的至少一个测量的影响较小有害的部分信号。

55. 发明授权

US08259570B2 Systems and methods for controlling packet transmission from a transmitter to a receiver via a channel that employs packet queuing when overloaded 有权
标题翻译：用于控制从发射机到接收机的分组传输的系统和方法，所述信道在过载时采用分组排队
公开(公告)号：US08259570B2
公开(公告)日：2012-09-04
申请号：US12455908
申请日：2009-06-09
申请人： Christoffer Asgaard Rodbro , Soren Vang Andersen , Koen Vos
发明人： Christoffer Asgaard Rodbro , Soren Vang Andersen , Koen Vos
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L43/0852 , H04L43/0876 , H04L43/106
摘要： The invention provides a method of controlling transmission of packets from a transmitter to a receiver via a channel, and a corresponding transmitter and receiver. The method comprises: transmitting packets from a queue, each packet having a packet size based on data in the packet; determining a transmission time for each packet, based on a transmission clock; determining a reception time of each packet, based on a reception clock; supplying to an estimation function successive sets of observations including in each set transmission time, reception time and packet size, the estimate function being arranged to provide an estimate of bandwidth for the channel using the relationship between the bandwidth, the amount of data in the queue, packet size and the delay between transmitting successive packets from the queue; and using the estimated bandwidth to control transmission of packets.
摘要翻译：本发明提供了一种控制经由信道从发射机到接收机的分组传输的方法，以及对应的发射机和接收机。该方法包括：从队列中发送分组，每个分组具有基于分组中的数据的分组大小; 基于传输时钟确定每个分组的传输时间; 基于接收时钟确定每个分组的接收时间; 向估计函数提供连续的观测集合，包括在每个集合传输时间，接收时间和分组大小中，所述估计函数被布置为使用所述带宽与所述队列中的数据量之间的关系来提供所述信道的带宽估计，分组大小和从队列发送连续分组之间的延迟; 并使用估计的带宽来控制分组的传输。

56. 发明申请

US20110206119A1 Data Compression for Video 有权
标题翻译：数据压缩视频
公开(公告)号：US20110206119A1
公开(公告)日：2011-08-25
申请号：US12838197
申请日：2010-07-16
申请人： Lazar Bivolarsky , Mattias Nilsson , Renat Vafin , Soren Vang Andersen
发明人： Lazar Bivolarsky , Mattias Nilsson , Renat Vafin , Soren Vang Andersen
IPC分类号： H04N7/50
CPC分类号： H04N19/94 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/547
摘要： A method of compressing a video signal. The method comprises: for each of a plurality of image portions, transforming from a spatial domain representation into a transform domain representation; and for each of a plurality of target image portions to be encoded, determining a respective reference portion, determining a prediction of the target image portion based on the reference portion, and encoding the target image portion based on the prediction. The prediction comprises predicting a non-lateral motion of the target image portion relative to the reference portion based on processing of their transform domain coefficients. The encoding comprises generating an encoded bitstream comprising information about the non-lateral motion for use by a decoder.
摘要翻译：一种压缩视频信号的方法。该方法包括：对于多个图像部分中的每一个，从空间域表示变换为变换域表示; 并且对于要编码的多个目标图像部分中的每一个，确定相应的参考部分，基于参考部分确定目标图像部分的预测，以及基于该预测对目标图像部分进行编码。该预测包括基于其变换域系数的处理来预测目标图像部分相对于参考部分的非横向运动。编码包括生成编码比特流，其包括关于解码器使用的非横向运动的信息。

57. 发明申请

US20110206118A1 Data Compression for Video 审中-公开
标题翻译：数据压缩视频
公开(公告)号：US20110206118A1
公开(公告)日：2011-08-25
申请号：US12838168
申请日：2010-07-16
申请人： Lazar Bivolarsky , Mattias Nilsson , Renat Vafin , Soren Vang Andersen
发明人： Lazar Bivolarsky , Mattias Nilsson , Renat Vafin , Soren Vang Andersen
IPC分类号： H04N7/26
CPC分类号： H04N19/94 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/547
摘要： The present invention provides an encoded bitstream and corresponding decoder. An encoded bit stream of compressed video data represents a plurality of successive video frames with each frame being divided into a plurality of portions and each portion corresponding to a plurality of pixels. The encoded bit stream comprises: a set of quantized transform domain coefficients representing a first one of said portions; difference data for a second one of said portions, wherein the difference data defines a difference between transform domain coefficients of the first portion and the predicted second portion, such that the second portion can be predicted from the first portion; and an address specifying the location of the first portion in terms of a whole number of said portions instead of a pixel offset.
摘要翻译：本发明提供了编码比特流和对应的解码器。压缩视频数据的编码比特流表示多个连续的视频帧，其中每个帧被分成多个部分，每个部分对应于多个像素。编码比特流包括：表示所述部分中的第一个的量化变换域系数集合; 所述差分数据定义所述第一部分的变换域系数与预测的第二部分之间的差异，使得可以从第一部分预测第二部分; 以及指定所述部分的整数的第一部分的位置而不是像素偏移的地址。

58. 发明申请

US20110206117A1 Data Compression for Video 有权
标题翻译：数据压缩视频
公开(公告)号：US20110206117A1
公开(公告)日：2011-08-25
申请号：US12838124
申请日：2010-07-16
申请人： Lazar Bivolarsky , Mattias Nilsson , Renat Vafin , Soren Vang Andersen
发明人： Lazar Bivolarsky , Mattias Nilsson , Renat Vafin , Soren Vang Andersen
IPC分类号： H04N7/32 , H04N7/26
CPC分类号： H04N19/48 , H04N19/105 , H04N19/146 , H04N19/176 , H04N19/46 , H04N19/61
摘要： A method of selecting reference blocks for intra or inter prediction coding of a current block of a video signal. Each reference blocks is selected by: (i) determining a group of candidate blocks comprising at least some candidate blocks other than immediately adjacent spatial neighbours of the current block; and (ii) selecting one of the candidate blocks as the reference block based on a second metric, different from the first metric, the second metric relating to a number of bits that would be required in the encoded bitstream to encode both the residual block and the side information identifying the respective reference block.
摘要翻译：一种选择用于视频信号的当前块的帧内或帧间预测编码的参考块的方法。通过以下方式来选择每个参考块：（i）确定包括除当前块的紧邻相邻空间邻域之外的至少一些候选块的候选块组; 和（ii）基于与所述第一度量不同的第二度量来选择所述候选块中的一个作为所述参考块，所述第二度量涉及所述编码比特流中将需要编码所述剩余块和该侧信息标识相应的参考块。

59. 发明申请

US20110205895A1 METHOD OF ESTIMATING CONGESTION 有权
标题翻译：估计方法
公开(公告)号：US20110205895A1
公开(公告)日：2011-08-25
申请号：US12824560
申请日：2010-06-28
申请人： Mingyu Chen , Christoffer Rodbro , Soren Vang Andersen
发明人： Mingyu Chen , Christoffer Rodbro , Soren Vang Andersen
IPC分类号： H04J3/14
CPC分类号： H04L47/10 , H04L47/11 , H04L47/127 , H04L47/18 , H04L47/193 , H04L47/25 , H04L47/263 , H04L47/283 , H04L47/31
摘要： Provided is a method of controlling traffic transmitted over a network path from a transmitter to a receiver via a router, the traffic comprising a plurality of packets, and the method comprising: at one of said transmitter and receiver, estimating a maximum queue length at a buffer of the router based on a maximum observed delay for traffic to travel from the transmitter to the receiver, and estimating a current queue length at the buffer of the router based on an observed delay for one or more specified packets to travel from the transmitter to the receiver; and based on said estimates of current queue length and maximum queue length, controlling traffic between the transmitter and receiver over said network path.
摘要翻译：提供了一种控制经由路由器从发射机到接收机的网络路径传输的业务的方法，所述业务包括多个分组，并且所述方法包括：在所述发射机和接收机之一处，估计在基于来自发射机到接收机的业务的最大观察到的延迟的路由器的缓冲器，以及基于从发射机传播到一个或多个指定分组的观察到的延迟来估计路由器的缓冲器处的当前队列长度收件人; 并且基于对当前队列长度和最大队列长度的估计，控制通过所述网络路径的发射机和接收机之间的业务。

60. 发明申请

US20100150171A1 Controlling packet transmission 有权
标题翻译：控制包传输
公开(公告)号：US20100150171A1
公开(公告)日：2010-06-17
申请号：US12455908
申请日：2009-06-09
申请人： Christoffer Asgaard Rodbro , Soren Vang Andersen , Koen Vos
发明人： Christoffer Asgaard Rodbro , Soren Vang Andersen , Koen Vos
IPC分类号： H04L29/08
CPC分类号： H04L47/10 , H04L43/0852 , H04L43/0876 , H04L43/106
摘要： The invention provides a method of controlling transmission of packets from a transmitter to a receiver via a channel, and a corresponding transmitter and receiver. The method comprises: transmitting packets from a queue, each packet having a packet size based on data in the packet; determining a transmission time for each packet, based on a transmission clock; determining a reception time of each packet, based on a reception clock; supplying to an estimation function successive sets of observations including in each set transmission time, reception time and packet size, the estimate function being arranged to provide an estimate of bandwidth for the channel using the relationship between the bandwidth, the amount of data in the queue, packet size and the delay between transmitting successive packets from the queue; and using the estimated bandwidth to control transmission of packets.
摘要翻译：本发明提供了一种控制经由信道从发射机到接收机的分组传输的方法，以及对应的发射机和接收机。该方法包括：从队列中发送分组，每个分组具有基于分组中的数据的分组大小; 基于传输时钟确定每个分组的传输时间; 基于接收时钟确定每个分组的接收时间; 向估计函数提供连续的观测集合，包括在每个集合传输时间，接收时间和分组大小中，所述估计函数被布置为使用所述带宽与所述队列中的数据量之间的关系来提供所述信道的带宽估计，分组大小和从队列发送连续分组之间的延迟; 并使用估计的带宽来控制分组的传输。

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