公开(公告)号：US20200309829A1

公开(公告)日：2020-10-01

申请号：US16371124

申请日：2019-04-01

申请人： Dake He

发明人： Dake He ,  Kun Liu ,  Bing Ai ,  Fuzhou Zhang ,  Qiang Shi ,  Xianshun Chen ,  Xiang Zhang

IPC分类号： G01R22/06 ,  G01R22/10

摘要： The invention discloses an on-line monitoring system for the performance of the measurement equipment in the entire power grid based on wide-area synchronous measurement, including a number of capacitive voltage transformers (CVT), electronic voltage transformers (EVT), electronic current transformers (ECT), electromagnetic potential transformers (PT), electromagnetic current transformers (CT), secondary circuits, electric energy meters, energy acquisition terminals, merging units, switches, clock synchronization systems, long-distance transmission line and other operating equipment. It also includes CVT insulation parameter monitoring module, CT oil pressure sensor, environmental parameter monitoring module, clock synchronization module, wide-area synchronous monitoring system consist of online monitoring apparatus, data transmission channel, installed in all substations of the power grid, as well as analysis and evaluation system of acquisition master station.CT, CVT and PT are connected to the on-line monitoring apparatus separately. EVT, ECT, CVT parameter acquisition module, CT oil pressure sensor and environmental parameter monitoring module are connected to the merging unit. The merging unit is connected to the on-line monitoring apparatus separately. The clock synchronization module is connected to the merging unit and the on-line monitoring apparatus respectively. The On-line monitoring apparatus can synchronously monitor and alarm the insulation performance, error characteristics and environmental parameters of multiple transformers, electric energy meters and secondary circuits, and complete on-line calibration of electric energy meters and group calibration of instrumentational transformers, and transmit the data to the acquisition master station through mature protocol and data transmission channels for energy data acquisition and equipment state monitoring. The on-line monitoring apparatus and merging unit in the entire network are synchronized by GPS clock synchronization system, so that the data of the entire network can be acquired synchronously. The overall performance of various measurement equipment is evaluated using related analytical techniques based on big data technologies.

公开(公告)号：US08891630B2

公开(公告)日：2014-11-18

申请号：US13279397

申请日：2011-10-24

申请人： Gergely Ferenc Korodi ,  Jinwen Zan ,  Dake He

发明人： Gergely Ferenc Korodi ,  Jinwen Zan ,  Dake He

IPC分类号： H04N11/02 ,  H04N19/625 ,  H04N19/18 ,  H04N19/13

CPC分类号： H04N19/60 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/625 ,  H04N19/91

摘要： Methods of encoding and decoding for video data are describe in which significance maps are encoded and decoded using non-spatially-uniform partitioning of the map into parts, wherein the bit positions within each part are associated with a given context. Example partition sets and processes for selecting from amongst predetermined partition sets and communicating the selection to the decoder are described.

摘要翻译： 描述用于视频数据的编码和解码的方法，其中使用映射的非空间均匀划分来对有意义的映射进行编码和解码，其中每个部分内的位位置与给定的上下文相关联。 描述了用于从预定分区集合中选择并将选择传送到解码器的示例分区集和处理。

公开(公告)号：US08836547B1

公开(公告)日：2014-09-16

申请号：US13412200

申请日：2012-03-05

申请人： Dake He ,  Vadim Sheinin

发明人： Dake He ,  Vadim Sheinin

IPC分类号： H03M7/00

CPC分类号： H03M7/30

摘要： A method for storing data on a server device is disclosed. The method includes receiving a plurality of encoded data blocks from a plurality of client devices, wherein the plurality of encoded data blocks are encoded using a distributed encoding technique, decoding the plurality of encoded data blocks using at least one of a plurality of previously decoded data blocks, and storing the decoded plurality of data blocks using a de-duplication technique.

摘要翻译： 公开了一种在服务器设备上存储数据的方法。 该方法包括从多个客户端设备接收多个编码数据块，其中使用分布式编码技术对多个编码数据块进行编码，使用多个先前解码的数据中的至少一个解码多个编码数据块 块，并且使用重复数据删除技术存储解码的多个数据块。

公开(公告)号：US08804837B2

公开(公告)日：2014-08-12

申请号：US13545414

申请日：2012-07-10

申请人： Dake He ,  Ashish Jagmohan ,  Ligang Lu

发明人： Dake He ,  Ashish Jagmohan ,  Ligang Lu

IPC分类号： H04N11/02

CPC分类号： H04N19/395 ,  H04N19/103 ,  H04N19/18 ,  H04N19/48

摘要： A method and system are disclosed for selecting a mode to encode video data. The method comprises the steps of (a) transforming a source video frame into a set of coefficients, (b) partitioning said set of coefficients into a plurality of subsets of the coefficients on the basis of probability statistics corresponding to a plurality of encoding modes, wherein each of said subsets is identified for encoding by one of the plurality of encoding modes. The method comprises the further steps of (c) for each of the plurality of subsets of coefficients, computing defined parameters of an associated probability distribution for said subset, and (d) repeating steps (b) and (c) until a predetermined termination condition is satisfied. When this predetermined termination condition is satisfied, the subsets of coefficients, as they exist at that time, are output to a video encoder, which preferably is a Wyner-Ziv encoder.

摘要翻译： 公开了一种用于选择对视频数据进行编码的模式的方法和系统。 该方法包括以下步骤：（a）将源视频帧变换成一组系数，（b）基于对应于多个编码模式的概率统计，将所述系数集合划分成系数的多个子集， 其中所述子集中的每一个被识别用于通过所述多个编码模式之一进行编码。 该方法还包括以下步骤：（c）针对所述多个系数子集中的每一个，计算所述子集的关联概率分布的定义参数，以及（d）重复步骤（b）和（c）直到预定终止条件 满意 当满足该预定终止条件时，如同在那时存在的系数子集被输出到视频编码器，其优选地是Wyner-Ziv编码器。

公开(公告)号：US08768082B2

公开(公告)日：2014-07-01

申请号：US13166423

申请日：2011-06-22

申请人： Dake He ,  Xiang Yu ,  Jing Wang

发明人： Dake He ,  Xiang Yu ,  Jing Wang

IPC分类号： G06K9/36

CPC分类号： H04N19/126 ,  H04N19/105 ,  H04N19/176 ,  H04N19/30 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

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生成投影因子。 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。

公开(公告)号：US20130336410A1

公开(公告)日：2013-12-19

申请号：US13524583

申请日：2012-06-15

申请人： Nguyen NGUYEN ,  Dake HE

发明人： Nguyen NGUYEN ,  Dake HE

IPC分类号： H04N7/26

CPC分类号： H04N19/44 ,  H04N19/124 ,  H04N19/18 ,  H04N19/46

摘要： Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit. Greater-than-one flags are encoded by grouping them into tuples and by encoding a tuple-based value that is a function of the greater-than-one flags within that tuple. The tuple-based value may permit the decoder to infer the greater-than-one flags in some cases, in which case they are not encoded in the bitstream.

摘要翻译： 用于从变换单元中的系数组的编码视频数据的比特流重建系数级的方法和装置。 通过将大于1的标记分组到元组中，并通过对基于元组的值进行编码，该值是该元组中大于1的标志的函数。 基于元组的值可能允许解码器在某些情况下推断大于1的标志，在这种情况下，它们不被编码在比特流中。

公开(公告)号：US20130336409A1

公开(公告)日：2013-12-19

申请号：US13524117

申请日：2012-06-15

申请人： Dake HE ,  Jing WANG ,  Xiang YU

发明人： Dake HE ,  Jing WANG ,  Xiang YU

IPC分类号： H04N7/26

CPC分类号： H04N19/18 ,  H04N19/184 ,  H04N19/44 ,  H04N19/463 ,  H04N19/467 ,  H04N19/48 ,  H04N19/91

摘要： Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit. Sign bits are hidden in the parity of partially overlapping subsets of a set of coefficients. This enables the hiding of multiple sign bits per coefficient group. Other information bits may be hidden instead of sign bits in some cases.

摘要翻译： 用于从变换单元中的系数组的编码视频数据的比特流重建系数级的方法和装置。 符号位隐藏在一组系数的部分重叠子集的奇偶校验中。 这使得能够隐藏每个系数组的多个符号位。 在某些情况下，其他信息位可能被隐藏而不是符号位。

公开(公告)号：US08582639B2

公开(公告)日：2013-11-12

申请号：US12830548

申请日：2010-07-06

申请人： Dake He ,  Xiang Yu ,  En-Hui Yang

发明人： Dake He ,  Xiang Yu ,  En-Hui Yang

IPC分类号： H04N7/50 ,  H04B1/66

CPC分类号： H04N19/192 ,  H04N19/126 ,  H04N19/147 ,  H04N19/172 ,  H04N19/174 ,  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，可以使用速率 - 失真分析来选择自适应重建级别，所述速率 - 失真分析包括与所述级别相对于所述数据点相关联的量化失真和与传送所述编码的自适应重建级别相关联的速率 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。

公开(公告)号：US08519871B2

公开(公告)日：2013-08-27

申请号：US13249707

申请日：2011-09-30

申请人： Dake He ,  Gergely Ferenc Korodi ,  Gaelle Christine Martin-Cocher ,  En-hui Yang

发明人： Dake He ,  Gergely Ferenc Korodi ,  Gaelle Christine Martin-Cocher ,  En-hui Yang

IPC分类号： H03M7/00

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.

公开(公告)号：US08446301B2

公开(公告)日：2013-05-21

申请号：US13087462

申请日：2011-04-15

申请人： Dake He ,  Jing Wang

发明人： Dake He ,  Jing Wang

IPC分类号： H03M7/00

CPC分类号： H03M7/40 ,  H03M7/3075 ,  H03M7/3079

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.

摘要翻译： 描述了使用熵编码器对数据进行熵编码以对量化的变换域系数数据进行编码的方法和装置。 在比特流中用最后一个有效系数的二维坐标来表示最后一个有效系数信息。 坐标之一的仓的上下文部分地基于另一坐标的值。 在一种情况下，代替信令最后一个有效系数信息，非零系数的数量被二进制化并进行熵编码。