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1. 发明授权

US09584812B2 Methods and devices for context set selection 有权
标题翻译：上下文集选择的方法和设备
公开(公告)号：US09584812B2
公开(公告)日：2017-02-28
申请号：US13354485
申请日：2012-01-20
申请人： Tianying Ji , Nguyen Nguyen , Dake He
发明人： Tianying Ji , Nguyen Nguyen , Dake He
IPC分类号： H04N7/30 , H04N19/129 , H04N19/176 , H04N19/51 , H04N19/593
CPC分类号： H04N19/129 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/51 , H04N19/593 , H04N19/60
摘要： Methods of encoding and decoding for video data are described for encoding or decoding multi-level significance maps. Distinct context sets may be used for encoding the significant-coefficient flags in different regions of the transform unit. In a fixed case, the regions are defined by coefficient group borders. In one example, the upper-left coefficient group is a first region and the other coefficient groups are a second region. In a dynamic case, the regions are defined by coefficient group borders, but the encoder and decoder dynamically determine in which region each coefficient group belongs. Coefficient groups may be assigned to one region or another based on, for example, whether their respective significant-coefficient-group flags were inferred or not.
摘要翻译：描述用于视频数据的编码和解码的方法用于对多级重要性图进行编码或解码。不同的上下文集合可用于对变换单元的不同区域中的有效系数标记进行编码。在固定情况下，区域由系数组边界定义。在一个示例中，左上系数组是第一区域，其它系数组是第二区域。在动态情况下，区域由系数组边界定义，但编码器和解码器动态地确定每个系数组属于哪个区域。可以基于例如它们各自的有效系数组标志是否被推断来将系数组分配给一个区域或另一个区域。

2. 发明授权

US09172962B2 Methods and systems for pipelining within binary arithmetic coding and decoding 有权
标题翻译：二进制算术编码和解码中流水线的方法和系统
公开(公告)号：US09172962B2
公开(公告)日：2015-10-27
申请号：US13354437
申请日：2012-01-20
申请人： Nguyen Nguyen , Tianying Ji , Dake He
发明人： Nguyen Nguyen , Tianying Ji , Dake He
IPC分类号： H04N11/02 , H04B1/66 , H04N19/129 , H04N19/91 , H04N19/176 , H04N19/51 , H04N19/593
CPC分类号： H04N19/129 , H04N19/176 , H04N19/51 , H04N19/593 , H04N19/91
摘要： Methods of encoding and decoding for video data are described for encoding or decoding multi-level significance maps while enabling pipelining of the BAC engine. In one example, coefficient groups are redefined to remove the significant-coefficient flags of the first and last position of a block and replace them with significant-coefficient flags of the last position in the previous block and the first position in the next block. A modified scan order is applied to each coefficient group. In another example, the coefficient groups remain block-based, but the scan order is modified to interleave the encoding and decoding sequential coefficient groups.
摘要翻译：描述用于视频数据的编码和解码的方法用于在启用BAC引擎的流水线时对多级重要性图进行编码或解码。在一个示例中，重新定义系数组以去除块的第一和最后位置的有效系数标志，并将其替换为先前块中的最后位置和下一块中的第一位置的有效系数标志。修改的扫描顺序应用于每个系数组。在另一示例中，系数组保持基于块，但扫描顺序被修改以交织编码和解码顺序系数组。

3. 发明授权

US09036710B2 Unified transform coefficient encoding and decoding 有权
标题翻译：统一变换系数编码和解码
公开(公告)号：US09036710B2
公开(公告)日：2015-05-19
申请号：US13446393
申请日：2012-04-13
申请人： Nguyen Nguyen , Tianying Ji , Dake He
发明人： Nguyen Nguyen , Tianying Ji , Dake He
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H03M7/40 , H04N19/176 , H04N19/13 , H04N19/61 , H04N19/14 , H04N19/18 , H04N19/182 , H03M7/30
CPC分类号： H03M7/4006 , H03M7/4018 , H03M7/6011 , H03M7/6017 , H04N19/13 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/61
摘要： Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit, using adaptive-threshold-based level coding. Threshold is set based upon level information from one or more previously-reconstructed coefficient groups in the transform unit. Threshold may be maximum number of level flags to decode for the coefficient group. Level information may include number of level flags decoded in previous coefficient groups. Previously-reconstructed coefficient groups may include coefficient group to the right and below the current coefficient group.
摘要翻译：用于使用基于自适应阈值的电平编码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。基于来自变换单元中的一个或多个先前重构的系数组的级别信息设置阈值。阈值可以是用于系数组解码的最大级别标志数。电平信息可以包括在先前系数组中解码的电平标志的数量。先前重建的系数组可以包括当前系数组右侧和下面的系数组。

4. 发明授权

US08964849B2 Multi-level significance maps for encoding and decoding 有权
标题翻译：用于编码和解码的多级重要性图
公开(公告)号：US08964849B2
公开(公告)日：2015-02-24
申请号：US13286336
申请日：2011-11-01
申请人： Nguyen Nguyen , Tianying Ji , Dake He
发明人： Nguyen Nguyen , Tianying Ji , Dake He
IPC分类号： H04N19/60 , H04N19/132 , H04N19/18 , H04N19/70 , H04N19/91 , H04N19/61 , H04N19/136 , H04N19/13 , H04N19/172 , H04N19/159
CPC分类号： H04N19/122 , H04N19/13 , H04N19/132 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/172 , H04N19/18 , H04N19/196 , H04N19/61 , H04N19/70 , H04N19/91
摘要： Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. If there are no non-zero significant-coefficient flags in the group, then the significant-coefficient-group flag is set to zero. The set of significant-coefficient-group flags is encoded in the bitstream. Any significant-coefficient flags that fall within a group that has a significant-coefficient-group flag that is non-zero are encoded in the bitstream, whereas significant-coefficient flags that fall within a group that has a significant-coefficient-group flag that is zero are not encoded in the bitstream.
摘要翻译：描述了用于视频数据的编码和解码方法，其中在编码和解码过程中使用多级重要性图。形成有效图的有效系数标记被分组成连续的组，并且对于每个组，有意义的系数组标志表示该组是否包含非零有效系数标志。如果组中没有非零有效系数标志，则有效系数组标志被设置为零。在比特流中编码有效系数组标志的集合。位于具有非零值的有效系数组标志的组内的任何有效系数标志被编码在比特流中，而落在具有有效系数组标志的组内的有效系数标志位是零不在比特流中编码。

5. 发明授权

US09743098B2 Multi-level significance map scanning 有权
公开(公告)号：US09743098B2
公开(公告)日：2017-08-22
申请号：US13446186
申请日：2012-04-13
申请人： Dake He , Nguyen Nguyen , Tianying Ji
发明人： Dake He , Nguyen Nguyen , Tianying Ji
IPC分类号： H04N7/30 , H04N19/40 , H04N19/176 , H04N19/70 , H04N19/46 , H04N19/13 , H04N19/63 , H04N19/129 , H04N19/61 , H04N19/136 , H04N19/18 , H04N19/91
CPC分类号： H04N19/40 , H04N19/129 , H04N19/13 , H04N19/136 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/91
摘要： Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. A multi-level scan order may be used in which significant-coefficient flags are scanned group-by-group. The group scan order specifies the order in which the groups are processed, and the scan order specifies the order in which individual significant-coefficient flags within the group are processed. The bitstream may interleave the significant-coefficient-group flags and their corresponding significant-coefficient flags, if any.

6. 发明授权

US09008189B2 Methods and devices for context modeling to enable modular processing 有权
标题翻译：用于上下文建模以实现模块化处理的方法和设备
公开(公告)号：US09008189B2
公开(公告)日：2015-04-14
申请号：US13354448
申请日：2012-01-20
申请人： Nguyen Nguyen , Tianying Ji , Dake He
发明人： Nguyen Nguyen , Tianying Ji , Dake He
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/60 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
CPC分类号： H04N19/60 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
摘要： Methods of encoding and decoding for video data are described for encoding or decoding coefficients for a transform unit. In particular, the significant-coefficient flags for a coefficient group are encoded and decoded based upon a context determination, and the context is determined based upon the values of neighboring flags. The neighborhood used to determine the context varies depending on whether the significant-coefficient flag to be encoded or decoded is in the right column or bottom row of the coefficient group or not. If it is in the right column or bottom row one of the alternative context neighborhoods is used to avoid relying on significant-coefficient flags in other coefficient groups except for the flags immediately adjacent the right border and bottom border of the coefficient group, and the flag diagonally to the lower-right.
摘要翻译：描述了用于视频数据的编码和解码的方法，用于对变换单元的系数进行编码或解码。特别地，基于上下文确定对系数组的有效系数标志进行编码和解码，并且基于相邻标志的值确定上下文。用于确定上下文的邻域取决于要编码或解码的有效系数标志是否在系数组的右列或底行。如果它在右列或底行中，则使用替代上下文邻域之一来避免依赖于除系数组的右边界和底边界之外的标志紧邻的其他系数组中的有效系数标志，并且标志对角线到右下角。

7. 发明授权

US09462286B2 Methods and devices for coding binary symbols as n-tuples 有权
标题翻译：用于将二进制符号编码为n元组的方法和装置
公开(公告)号：US09462286B2
公开(公告)日：2016-10-04
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： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/44 , H04N19/46 , H04N19/124 , H04N19/18
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。

8. 发明申请

US20110276710A1 SYSTEM AND METHOD FOR LOW-LATENCY MULTIMEDIA STREAMING 有权
标题翻译：低阶多媒体流的系统与方法
公开(公告)号：US20110276710A1
公开(公告)日：2011-11-10
申请号：US12774608
申请日：2010-05-05
申请人： Farhad Mighani , Alberto Duenas , Nguyen Nguyen , Gorka Garcia
发明人： Farhad Mighani , Alberto Duenas , Nguyen Nguyen , Gorka Garcia
IPC分类号： G06F15/16
CPC分类号： H04N21/44227 , H04L65/4084 , H04L65/605 , H04L65/607 , H04L65/80 , H04N21/4325 , H04N21/4402
摘要： Systems and methods for transmitting a multimedia stream over a communication link on a network are disclosed. The systems and methods adaptively adjust encoding parameters based on monitoring changing conditions of the network. A transmitter includes an adaptive-rate encoder that adaptively adjusts a video encoding bit rate in response to changing conditions of the communication link. The encoder maintains tight rate control by utilizing slice processing and sub-frame rate adaptation, as well as maintaining a headroom between the channel bit rate and the video encoding bit rate. The adaptive-rate encoder also embeds intra-frame constraints in predictive frames traffic in order to reduce latency.
摘要翻译：公开了一种通过网络上的通信链路发送多媒体流的系统和方法。系统和方法基于监控网络的变化条件自适应地调整编码参数。发射机包括自适应速率编码器，其响应于通信链路的变化条件自适应地调整视频编码比特率。编码器通过利用片处理和子帧速率适配器来维持紧密的速率控制，以及保持信道比特率和视频编码比特率之间的净空。自适应速率编码器还将帧内约束嵌入到预测帧业务中以便减少等待时间。

9. 发明申请

US20110274156A1 SYSTEM AND METHOD FOR TRANSMITTING MULTIMEDIA STREAM 审中-公开
标题翻译：用于发送多媒体流的系统和方法
公开(公告)号：US20110274156A1
公开(公告)日：2011-11-10
申请号：US12774585
申请日：2010-05-05
申请人： Farhad Mighani , Alberto Duenas , Nguyen Nguyen , Gorka Garcia
发明人： Farhad Mighani , Alberto Duenas , Nguyen Nguyen , Gorka Garcia
IPC分类号： H04N7/26 , G06F15/16
CPC分类号： H04N19/162 , H04N19/164 , H04N21/2381 , H04N21/2402 , H04N21/4381
摘要： Systems and methods for transmitting a multimedia stream are disclosed. A transmitter encodes audio data, video data, and control information received from a source and transmits over a network the different types of data to a receiver coupled to a display. The systems and methods utilize different network queues for the different types of traffic in order to account for differences in quality of service (QoS) parameters. The systems and methods adaptively adjust encoding and transmission parameters based on monitoring changing conditions of the network.
摘要翻译：公开了用于发送多媒体流的系统和方法。发射机对从源接收的音频数据，视频数据和控制信息进行编码，并通过网络将不同类型的数据发送到耦合到显示器的接收机。系统和方法为不同类型的流量利用不同的网络队列，以便考虑服务质量（QoS）参数的差异。系统和方法基于监控网络的变化条件自适应地调整编码和传输参数。

10. 发明授权

US09189020B2 Portable computing device with cover providing access and control of applications 有权
标题翻译：带盖的便携式计算设备提供应用程序的访问和控制
公开(公告)号：US09189020B2
公开(公告)日：2015-11-17
申请号：US13422395
申请日：2012-03-16
申请人： Nguyen Nguyen , Mak Vaziri , Saeed Seyed , Kenneth S. Mak
发明人： Nguyen Nguyen , Mak Vaziri , Saeed Seyed , Kenneth S. Mak
IPC分类号： G06F1/16 , G06F3/0481 , G06F3/0488
CPC分类号： G06F1/1626 , G06F1/1632 , G06F3/0481 , G06F3/04886 , G06F2200/1633 , G06F2200/1634 , Y10T29/49826
摘要： A protective cover is utilized with a portable computing device, where the portable computing device includes a front surface that includes a display. The protective cover includes a sheet including a front surface and a rear surface, where the sheet has a suitable dimension to cover at least the display of the computing device when the protective cover is connected with the computing device. The sheet further includes a cut-out section that facilitates viewing of a reduced area of the display when the protective cover is connected with the computing device. The protective cover further includes at least one electrically conductive contact member located on the rear surface and configured to engage with at least one contact member of the computing device when the protective cover is connected with the front surface of the computing device.
摘要翻译：便携式计算设备使用保护盖，其中便携式计算设备包括包括显示器的前表面。保护罩包括一个包括前表面和后表面的片材，其中当保护罩与计算装置连接时，片材具有适当的尺寸以至少覆盖计算装置的显示器。该片材还包括切口部分，当保护盖与计算装置连接时，便于观看显示器的缩小区域。保护罩还包括位于后表面上的至少一个导电接触构件，其构造成当保护盖与计算装置的前表面连接时，与导电计算装置的至少一个接触构件接合。

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