专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2012019297A1 METHOD AND DEVICE FOR COMPRESSION OF BINARY SEQUENCES BY GROUPING MULTIPLE SYMBOLS 审中-公开
标题翻译：通过分组多个符号来压缩二进制序列的方法和装置
公开(公告)号：WO2012019297A1
公开(公告)日：2012-02-16
申请号：PCT/CA2011/050466
申请日：2011-07-28
申请人： RESEARCH IN MOTION LIMITED , KORODI, Gergely Ferenc , HE, Dake
发明人： KORODI, Gergely Ferenc , HE, Dake
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H03M7/4056 , H03M7/4006 , H03M7/42 , H04N19/91 , H04N19/96
摘要： A method for encoding an input sequence of symbols to produce a bitstream and a method of decoding the bitstream to generate a reconstructed binary sequence. Encoding employs 2 L -ary encoding trees having codewords associated with leaf nodes. A context model is used to select an encoding tree corresponding to an estimated probability at the encoder. The same context model is used by the decoder to select a decoding tree. The decoder interleaves bits from decoded sequences of length-L strings associated with different estimated probabilities, based on the context model.
摘要翻译：用于对输入的符号序列进行编码以产生比特流的方法以及对比特流进行解码以产生重构的二进制序列的方法。编码采用具有与叶节点相关联的码字的2L方编码树。上下文模型用于在编码器处选择与估计概率相对应的编码树。解码器使用相同的上下文模型来选择解码树。解码器基于上下文模型，对与不同估计概率相关联的长度L字符串的解码序列进行交织。

2. 发明申请

WO2011103678A1 ENCODING AND DECODING METHODS AND DEVICES EMPLOYING DUAL CODESETS 审中-公开
标题翻译：编码和解码方法和使用双码的设备
公开(公告)号：WO2011103678A1
公开(公告)日：2011-09-01
申请号：PCT/CA2011/050033
申请日：2011-01-21
申请人： RESEARCH IN MOTION LIMITED , KORODI, Gergely Ferenc , HE, Dake
发明人： KORODI, Gergely Ferenc , HE, Dake
IPC分类号： H04N7/50 , H03M7/30
CPC分类号： H04N19/436 , H04N19/46 , H04N19/70 , H04N19/91
摘要： A method for encoding an input sequence of symbols to produce a bitstream and a method of decoding the bitstream to generate a reconstructed binary sequence. Encoding employs an encoding tree having primary codewords associated with leaf nodes and secondary codewords associated with internal nodes. A flush event may cause output of secondary codewords. A context model is used to select an encoding tree corresponding to an estimated probability at the encoder. The same context model is used by the decoder to select a decoding tree. The decoder interleaves bits from decoded bit sequences associated with different estimated probabilities based on the context model.
摘要翻译：用于对输入的符号序列进行编码以产生比特流的方法以及对比特流进行解码以产生重构的二进制序列的方法。编码使用具有与叶节点相关联的主码字和与内部节点相关联的次码字的编码树。刷新事件可能导致次代码字的输出。上下文模型用于在编码器处选择与估计概率相对应的编码树。解码器使用相同的上下文模型来选择解码树。解码器基于上下文模型来对与不同估计概率相关联的解码比特序列进行交织。

3. 发明申请

WO2011130854A1 METHODS AND DEVICES FOR REORDERED PARALLEL ENTROPY CODING AND DECODING 审中-公开
标题翻译：用于重新平行并行编码和解码的方法和设备
公开(公告)号：WO2011130854A1
公开(公告)日：2011-10-27
申请号：PCT/CA2011/050208
申请日：2011-04-19
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , MARTIN-COCHER, Gaëlle Christine , KORODI, Gergely Ferenc
发明人： HE, Dake , MARTIN-COCHER, Gaëlle Christine , KORODI, Gergely Ferenc
IPC分类号： H04N7/50 , H03M7/30
CPC分类号： H03M7/40
摘要： A method for parallel context modeling through reordering the bits of an input sequence to form groups of bits in accordance with a context model-specific reordering schedule. The reordering schedule is developed such that the groups of bits are formed to satisfy two conditions: first, that the context for each of the bits in a group of bits is different from the context of each of the other bits in that group, and the context of each of the bits in that group is determined independently from each of the other bits in that group. The parallel context modeling may be used in encoding or decoding operations.
摘要翻译：一种用于通过根据上下文模型特定的重排序表重新排序输入序列的比特以形成比特组的并行上下文建模的方法。重新排序调度被开发成使得位组被形成为满足两个条件：首先，位组中的每个比特的上下文不同于该组中的每个其他比特的上下文，并且该组中每个位的上下文独立于该组中的每个其他位确定。并行上下文建模可用于编码或解码操作。

4. 发明申请

WO2012040857A1 METHODS AND DEVICES FOR PARALLEL ENCODING AND DECODING USING A BITSTREAM STRUCTURED FOR REDUCED DELAY 审中-公开
标题翻译：使用结构化减少延迟的BITSTREAM并行编码和解码的方法和设备
公开(公告)号：WO2012040857A1
公开(公告)日：2012-04-05
申请号：PCT/CA2011/050614
申请日：2011-09-30
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , KORODI, Gergely Ferenc , MARTIN-COCHER, Gaelle Christine , YANG, En-Hui
发明人： HE, Dake , KORODI, Gergely Ferenc , MARTIN-COCHER, Gaelle Christine , YANG, En-Hui
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H04N19/00775 , H03M7/30 , H03M7/40 , H03M7/4006 , H03M7/46 , H03M7/6023 , H04N19/60
摘要： Methods and devices for encoding and decoding that involve sorting bins according to their respective estimated probabilities to form subsequences, each subsequence having an associated estimated probability. Subsequences are encoded to form codewords. Ordered sets of phrases of known length are then formed from the codewords. Each first of the phrases in a set contains at least part of one codeword. The first phrase has an associated estimated probability and the probability estimates associated with each of the other phrases in the set are determined based upon the probability estimate associated with the first phrase, which permits the phrases to be decoded in parallel.
摘要翻译：用于编码和解码的方法和装置涉及根据各自的估计概率来分类分组以形成子序列，每个子序列具有相关联的估计概率。子序列被编码形成码字。然后从码字形成已知长度的有序集合。集合中的每个第一个短语包含一个码字的至少一部分。第一短语具有相关联的估计概率，并且基于与第一短语相关联的概率估计来确定与集合中的每个其他短语相关联的概率估计，其允许短语被并行解码。

5. 发明申请

WO2011127604A1 METHODS AND DEVICES FOR LOAD BALANCING IN PARALLEL ENTROPY CODING AND DECODING 审中-公开
标题翻译：用于并行入侵编码和解码的负载均衡的方法和设备
公开(公告)号：WO2011127604A1
公开(公告)日：2011-10-20
申请号：PCT/CA2011/050197
申请日：2011-04-13
申请人： RESEARCH IN MOTION LIMITED , KORODI, Gergely Ferenc , HE, Dake , YANG, En-Hui , MARTIN-COCHER, Gaëlle Christine
发明人： KORODI, Gergely Ferenc , HE, Dake , YANG, En-Hui , MARTIN-COCHER, Gaëlle Christine
IPC分类号： H04N7/50 , H03M7/30
CPC分类号： H03M7/40 , H04N19/127 , H04N19/13 , H04N19/436 , H04N19/46
摘要： Devices and methods for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from a payload field of the bitstream for parallel decoding on a set of parallel entropy decoders. The method includes dividing the payload of concatenated encoded subsequences into segments using a distribution function and distributing the segments amongst the set of parallel entropy decoders to balance the computational load among the parallel entropy decoders. The received bitstream includes auxiliary information inserted by the encoder to enable the decoder to entropy decode segments that begin with a portion of an encoded subsequence.
摘要翻译：通过从比特流的有效载荷字段提取多个编码子序列来对一组并行熵解码器进行并行解码来熵解码编码数据的比特流的装置和方法。该方法包括使用分布函数将连接的编码子序列的有效载荷划分成段，并且在并行熵解码器集合之间分配段以平衡并行熵解码器之间的计算负载。所接收的比特流包括由编码器插入的辅助信息，以使解码器可以熵解码以编码子序列的一部分开头的片段。

6. 发明申请

WO2012174636A1 COMPRESSING IMAGE DATA 审中-公开
标题翻译：压缩图像数据
公开(公告)号：WO2012174636A1
公开(公告)日：2012-12-27
申请号：PCT/CA2011/050384
申请日：2011-06-22
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , YU, Xiang , WANG, Jing
发明人： HE, Dake , YU, Xiang , WANG, Jing
IPC分类号： G06T9/00 , H04N7/50
CPC分类号： H04N19/48 , H04N19/105 , H04N19/176 , H04N19/463 , H04N19/50
摘要： Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.
摘要翻译：描述用于编码和解码图像的方法，系统和计算机程序。在一些方面，访问输入数据块和预测数据块。基于将输入数据块投影到预测数据块上而产生投影因子。通过将投影因子乘以预测数据块来生成缩放预测数据块。基于输入数据块和缩放预测数据块之间的差异生成残留数据块。在一些方面，访问与残留数据块相关联的预测数据块，残差数据块和投影因子。通过将投影因子乘以预测数据块来生成缩放预测数据块。通过对残差数据块和缩放预测数据块求和来生成输出数据块。

7. 发明申请

WO2012139192A3 METHODS AND DEVICES FOR CODING AND DECODING THE POSITION OF THE LAST SIGNIFICANT COEFFICIENT 审中-公开
公开(公告)号：WO2012139192A3
公开(公告)日：2012-10-18
申请号：PCT/CA2011/050200
申请日：2011-04-15
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , WANG, Jing
发明人： HE, Dake , WANG, Jing
IPC分类号： H04N7/50 , H03M7/30
摘要： Methods and devices are described for entropy coding data using an entropy coder to encode quantized transform domain coefficient data. Last significant coefficient information is signaled in the bitstream using two-dimensional coordinates for the last significant coefficient. The context for bins of one of the coordinates is based, in part, upon the value of the other of the coordinates. In one case, instead of signaling last significant coefficient information, the number of non-zero coefficients is binarized and entropy encoded.

8. 发明申请

WO2012003584A1 METHODS AND DEVICES FOR DATA COMPRESSION USING ADAPTIVE RECONSTRUCTION LEVELS 审中-公开
标题翻译：使用自适应重建级别进行数据压缩的方法和设备
公开(公告)号：WO2012003584A1
公开(公告)日：2012-01-12
申请号：PCT/CA2011/050401
申请日：2011-06-30
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , YU, Xiang , YANG, En-Hui
发明人： HE, Dake , YU, Xiang , YANG, En-Hui
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H04N19/192 , H04N19/126 , H04N19/147 , H04N19/176 , H04N19/19
摘要： Encoding and decoding methods that perform quantization using adaptive reconstruction levels are presented. The reconstruction levels for a given partitioning of the data space may be selected based upon the distribution of data points within each sub-part defined by the partitioning. In some cases, the adaptive reconstruction levels may be based upon an average of the data points within each sub-part. In some cases, the adaptive reconstruction levels may be selected using a rate-distortion analysis including the quantization distortion associated with the levels versus the data points and the rate associated with transmitting the encoded adaptive reconstruction levels. The methods relate to data compression in a range of applications including audio, images and video.
摘要翻译：提出了使用自适应重建级别执行量化的编码和解码方法。可以基于由分区定义的每个子部分内的数据点的分布来选择数据空间的给定划分的重建级别。在一些情况下，自适应重建级别可以基于每个子部分内的数据点的平均值。在一些情况下，可以使用包括与电平相对于数据点相关联的量化失真的速率失真分析以及与发送编码的自适应重建级别相关联的速率来选择自适应重建级别。该方法涉及包括音频，图像和视频在内的一系列应用中的数据压缩。

9. 发明申请

WO2012096671A1 MOBILE MEDIA CONTENT DELIVERY 审中-公开
标题翻译：移动媒体内容交付
公开(公告)号：WO2012096671A1
公开(公告)日：2012-07-19
申请号：PCT/US2011/021322
申请日：2011-01-14
申请人： RESEARCH IN MOTION LIMITED , SHEYNMAN, Arnold , PECEN, Mark , VILLAFLOR, Marcel , HE, Dake
发明人： SHEYNMAN, Arnold , PECEN, Mark , VILLAFLOR, Marcel , HE, Dake
IPC分类号： H04L29/06
CPC分类号： H04L65/601
摘要： A system and method are disclosed for managing the wireless delivery of streaming media content to a user equipment (UE) device. A UE device establishes a network connection with a local wireless network, which in turn is associated with a wireless network region with a corresponding data infrastructure server. The UE device then requests predetermined streaming media content from the data infrastructure server. A determination is made whether the requested streaming media content is stored in transcoded form on the data infrastructure server. If so, then a control information network is implemented to transmit and receive streaming media content control data between the UE device and the data infrastructure server. In turn, the streaming media content control data is used by the data infrastructure server to control the transmission of the transcoded streaming media content over a data network for delivery to the UE device.
摘要翻译：公开了一种用于管理流媒体内容到用户设备（UE）设备的无线传送的系统和方法。 UE设备与本地无线网络建立网络连接，本地无线网络又与具有相应数据基础设施服务器的无线网络区域相关联。然后，UE设备从数据基础设施服务器请求预定的流媒体内容。确定所请求的流媒体内容是否以代码转换形式存储在数据基础架构服务器上。如果是这样，则实施控制信息网络以在UE设备和数据基础设施服务器之间传送和接收流媒体内容控制数据。反过来，数据基础架构服务器使用流媒体内容控制数据来控制经过数据网络的代码转换的流媒体内容的传输，以传送给UE设备。

10. 发明申请

WO2012034231A1 METHODS AND DEVICES FOR DATA COMPRESSION WITH ADAPTIVE FILTERING IN THE TRANSFORM DOMAIN 审中-公开
标题翻译：用于在变换域中进行自适应滤波的数据压缩的方法和设备
公开(公告)号：WO2012034231A1
公开(公告)日：2012-03-22
申请号：PCT/CA2011/050559
申请日：2011-09-14
申请人： RESEARCH IN MOTION LIMITED , YU, Xiang , HE, Dake , YANG, En-hui
发明人： YU, Xiang , HE, Dake , YANG, En-hui
IPC分类号： H04N7/50
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/172 , H04N19/18 , H04N19/19 , H04N19/196 , H04N19/463 , H04N19/48 , H04N19/51 , H04N19/61 , H04N19/70
摘要： Methods and devices for encoding and decoding data using adaptive transform domain filtering are described. The encoder determines a set of transform domain filter coefficients to be applied to a transform domain prediction. The filtering may, in some cases, also apply to quantized transform domain coefficients. Rate-distortion optimization may be used to determine the optimal filter coefficients on a frame-based, coding-unit-basis, or other basis.
摘要翻译：描述了使用自适应变换域过滤对数据进行编码和解码的方法和装置。编码器确定要应用于变换域预测的一组变换域滤波器系数。在一些情况下，滤波也可以应用于量化的变换域系数。可以使用速率失真优化来确定基于帧，基于编码单位或其它基础的最佳滤波器系数。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式