公开(公告)号：US20070258519A1

公开(公告)日：2007-11-08

申请号：US11676263

申请日：2007-02-16

申请人： Sridhar Srinivasan

发明人： Sridhar Srinivasan

IPC分类号： H04N11/02

CPC分类号： H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： A digital media encoder/decoder performs quantization/dequantization based on quantization parameters taken from a harmonic quantizer scale. The harmonic quantizer scale can include a normal portion consisting of quantization parameter values harmonically-related as simple fractions of each other, and a denormal portion of quantizers having a linear or other relation. The encoder/decoder further supports a scaled quantizer mode where quantization is performed based on the quantization parameter as scaled by a fractional value. A compressed domain contrast adjustment is effected by adjusting the quantization parameters in the compressed bitstream, without having to adjust and recode the digital media data in the compressed bitstream.

摘要翻译： 数字媒体编码器/解码器基于从谐波量化器尺度获得的量化参数来执行量化/去量化。 谐波量化器标度可以包括由作为彼此的简单分数彼此谐波相关的量化参数值组成的正常部分，以及具有线性或其他关系的量化器的非正常部分。 编码器/解码器还支持缩放的量化器模式，其中基于由分数值缩放的量化参数来执行量化。 通过调整压缩比特流中的量化参数来实现压缩域对比度调整，而不必对压缩比特流中的数字媒体数据进行调整和重新编码。

公开(公告)号：US07116831B2

公开(公告)日：2006-10-03

申请号：US10379615

申请日：2003-03-04

申请人： Kunal Mukerjee ,  Sridhar Srinivasan

发明人： Kunal Mukerjee ,  Sridhar Srinivasan

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/162

摘要： Various techniques and tools for chrominance motion vector rounding are described. For example, during motion compensation, a video encoder or decoder converts luminance motion vectors into chrominance motion vector having quarter-pixel accuracy. Or, during motion compensation, a video encoder or decoder converts luminance motion vectors into chrominance motion vectors using one of multiple available chrominance motion vector rounding modes.

公开(公告)号：US07116830B2

公开(公告)日：2006-10-03

申请号：US10322171

申请日：2002-12-17

申请人： Sridhar Srinivasan

发明人： Sridhar Srinivasan

IPC分类号： G06K9/36

CPC分类号： H04N19/523 ,  G06T3/40 ,  G06T7/0012 ,  H04N19/105 ,  H04N19/115 ,  H04N19/117 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/132 ,  H04N19/136 ,  H04N19/137 ,  H04N19/146 ,  H04N19/147 ,  H04N19/15 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/46 ,  H04N19/50 ,  H04N19/513 ,  H04N19/52 ,  H04N19/527 ,  H04N19/533 ,  H04N19/547 ,  H04N19/57 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/63 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/895

摘要： Techniques and tools for spatial extrapolation of pixel values in intraframe video encoding and/or decoding are described. For example, to predict the pixel values for a block of pixels, a video encoder or decoder uses spatial extrapolation from the pixel values of pixels in a causal neighborhood for the block of pixels.

公开(公告)号：US20060133683A1

公开(公告)日：2006-06-22

申请号：US11015707

申请日：2004-12-17

申请人： Sridhar Srinivasan

发明人： Sridhar Srinivasan

IPC分类号： G06K9/36

CPC分类号： G06F17/147 ,  H04N19/60 ,  H04N19/635

摘要： A 2D transform and its inverse have an implementation as a sequence of lifting steps arranged for reduced computational complexity (i.e., reducing a number of non-trivial operations). This transform pair has energy compaction properties similar to the discrete cosine transform (DCT), and is also lossless and scale-free. As compared to a separable DCT transform implemented as 1D DCT transforms applied separably to rows and columns of a 2D data block, the transforms operations are re-arranged into a cascade of elementary transforms, including the 2×2 Hadamard transform, and 2×2 transforms incorporating lifting rotations. These elementary transforms have implementations as a sequence of lifting operations.

摘要翻译： 2D变换及其逆具有作为递减步骤的序列的实现，其被布置为降低计算复杂度（即，减少非平凡操作的数量）。 该变换对具有类似于离散余弦变换（DCT）的能量压缩特性，并且也是无损和无尺度的。 与可分离DCT变换（可分离地应用于2D数据块的行和列）进行DCT DCT变换相比，变换操作被重新排列成级联的基本变换，包括2x2 Hadamard变换，以及包含提升旋转的2x2变换 。 这些基本变换具有作为提升操作的顺序的实现。

公开(公告)号：US08934925B2

公开(公告)日：2015-01-13

申请号：US12905281

申请日：2010-10-15

申请人： Thomas Anand Jeyaseelan ,  Jianfeng Yan ,  Suresh Parameshwar ,  Zhou Xiang ,  Sridhar Srinivasan ,  Keizo Fujiwara

发明人： Thomas Anand Jeyaseelan ,  Jianfeng Yan ,  Suresh Parameshwar ,  Zhou Xiang ,  Sridhar Srinivasan ,  Keizo Fujiwara

IPC分类号： H04W68/00 ,  H04W4/12 ,  H04L12/58

CPC分类号： H04W4/12 ,  H04L51/02 ,  H04L51/063 ,  H04L51/38

摘要： Described is a pipeline for handling notification messages sent to a mobile messaging message (e.g., SMS or SMTP) recipient, and handling a reply to that notification message, including correlating the notification message with the reply. An engine receives a notification message, and for a notification message to which a reply is possible, maintains state data for use in correlating a received reply with the notification message. The state data includes metadata that indicates that text or code data is expected in any reply. For a reply providing code data, the engine calls a selected URL corresponding to the code. To facilitate message delivery, the engine may format the notification message, including shortening a URL of the message, and/or splitting a longer notification message into shorter notification messages.

摘要翻译： 描述了用于处理发送到移动消息收发消息（例如，SMS或SMTP）接收者的通知消息以及处理对该通知消息的回复的管道，包括将通知消息与回复相关联。 引擎接收通知消息，并且对于可以进行回复的通知消息，维护用于将接收的回复与通知消息相关联的状态数据。 状态数据包括指示在任何回复中预期文本或代码数据的元数据。 对于提供代码数据的回复，引擎调用与代码相对应的所选URL。 为了便于消息传递，引擎可以格式化通知消息，包括缩短消息的URL，和/或将更长的通知消息分割成更短的通知消息。

公开(公告)号：US08588298B2

公开(公告)日：2013-11-19

申请号：US13468643

申请日：2012-05-10

申请人： Sridhar Srinivasan

发明人： Sridhar Srinivasan

IPC分类号： H04L29/06

CPC分类号： H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： A digital media encoder/decoder performs quantization/dequantization based on quantization parameters taken from a harmonic quantizer scale. The harmonic quantizer scale can include a normal portion consisting of quantization parameter values harmonically-related as simple fractions of each other, and a denormal portion of quantizers having a linear or other relation. The encoder/decoder further supports a scaled quantizer mode where quantization is performed based on the quantization parameter as scaled by a fractional value. A compressed domain contrast adjustment is effected by adjusting the quantization parameters in the compressed bitstream, without having to adjust and recode the digital media data in the compressed bitstream.

摘要翻译： 数字媒体编码器/解码器基于从谐波量化器尺度获得的量化参数来执行量化/去量化。 谐波量化器标度可以包括由作为彼此的简单分数彼此谐波相关的量化参数值组成的正常部分，以及具有线性或其他关系的量化器的非正常部分。 编码器/解码器还支持缩放的量化器模式，其中基于由分数值缩放的量化参数来执行量化。 通过调整压缩比特流中的量化参数来实现压缩域对比度调整，而不必对压缩比特流中的数字媒体数据进行调整和重新编码。

公开(公告)号：US08571042B2

公开(公告)日：2013-10-29

申请号：US13166807

申请日：2011-06-23

申请人： Subrahmanyam Ongole ,  Sridhar Srinivasan

发明人： Subrahmanyam Ongole ,  Sridhar Srinivasan

IPC分类号： H04L12/28 ,  G06F12/00

CPC分类号： H04L63/0876 ,  H04L12/4641 ,  H04L45/745

摘要： A reception apparatus for optimizing a virtual private network operates by defragmenting and deduplicating transfer of variable sized blocks. A large data object is converted to a plurality of data paragraphs by a fingerprinting method. Each data paragraph is cached and hashed. The hashes are transmitted from a primary apparatus. Only data paragraphs which are not previously cached at satellite are received. The data object is integrated from stored and newly transmitted data paragraphs and transmitted to its destination IP address.

摘要翻译： 用于优化虚拟专用网络的接收装置通过对可变大小块的传送进行碎片整理和重复数据删除来操作。 通过指纹方法将大数据对象转换为多个数据段落。 每个数据段落被缓存和散列。 散列从主设备发送。 只接收以前未在卫星缓存的数据段落。 数据对象从存储和新发送的数据段落中集成，并传输到其目标IP地址。

公开(公告)号：US08184710B2

公开(公告)日：2012-05-22

申请号：US11772077

申请日：2007-06-29

申请人： Sridhar Srinivasan ,  Chengjie Tu ,  Shankar Regunathan

发明人： Sridhar Srinivasan ,  Chengjie Tu ,  Shankar Regunathan

IPC分类号： H04N7/12 ,  H04N11/04

CPC分类号： H04N19/34 ,  H04N19/13 ,  H04N19/184 ,  H04N19/60

摘要： A block transform-based digital media codec has a signaling scheme and bitstream syntax to flexibly signal that truncation of less significant information bits of transform coefficients coded as an optional layer of the bitstream has been performed adaptively per region or tile of the image.

摘要翻译： 基于块变换的数字媒体编解码器具有信令方案和比特流语法，以灵活地表示每个图像的每个区域或瓦片自适应地执行编码为比特流的可选层的变换系数的较不重要的信息比特的截断。

公开(公告)号：US08165990B2

公开(公告)日：2012-04-24

申请号：US12485002

申请日：2009-06-15

申请人： Kyrylo Val ,  Tao Wang ,  David Reinhold ,  Deepak Kumar ,  Satish J. Thomas ,  Sridhar Srinivasan

发明人： Kyrylo Val ,  Tao Wang ,  David Reinhold ,  Deepak Kumar ,  Satish J. Thomas ,  Sridhar Srinivasan

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F17/30297

摘要： A method and system for converting source tables of a database of the application to target tables of a new version of the database while reducing the amount of time that the database needs to be open in single-user access mode is provided. A conversion system divides the conversion into a multi-user phase and a single-user phase. During the multi-user phase, the conversion system can perform most of the conversions while the database is opened in multi-user access mode. The conversion system stores the converted data in auxiliary tables, rather than updating the source tables. During the single-user phase, the conversion system performs the remaining conversions and copies data from the source tables and the converted data from the auxiliary tables to the target tables.

摘要翻译： 提供了一种方法和系统，用于将应用程序的数据库的源表转换为数据库的新版本的目标表，同时减少数据库需要在单用户访问模式下打开的时间量。 转换系统将转换分为多用户阶段和单用户阶段。 在多用户阶段，转换系统可以在数据库以多用户访问模式打开时执行大部分转换。 转换系统将转换的数据存储在辅助表中，而不是更新源表。 在单用户阶段期间，转换系统执行剩余的转换，并将数据从源表和从辅助表转换的数据复制到目标表。

公开(公告)号：US08036274B2

公开(公告)日：2011-10-11

申请号：US11203644

申请日：2005-08-12

申请人： Sridhar Srinivasan ,  Chengjie Tu ,  Parker Shaw

发明人： Sridhar Srinivasan ,  Chengjie Tu ,  Parker Shaw

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/436 ,  G06F17/147 ,  H04N19/42 ,  H04N19/63

摘要： A block transform-based digital media codec achieves faster performance by re-mapping components of the digital media data into vectors or parallel units on which many operations of the transforms can be performed on a parallel or single-instruction, multiple data (SIMD) basis. In the case of a one-dimensional lapped biorthogonal transform, the digital media data components are re-mapped into vectors on which butterfly stages of both overlap pre-/post-filter and block transform portions of the lapped transform can be performed on a SIMD basis. In the case of a two-dimensional lapped biorthogonal transform, the digital media data components are re-mapped into vectors on which a Hadamard operator of both overlap pre-/post-filter and block transform can be performed on a SIMD basis.

摘要翻译： 基于块变换的数字媒体编解码器通过将数字媒体数据的组件重新映射成矢量或并行单元来实现更快的性能，其中可以在并行或单指令多数据（SIMD）基础上执行许多变换操作 。 在一维重叠双正交变换的情况下，将数字媒体数据分量重新映射成向量，其中可以在SIMD上执行翻转变换的重叠前/后滤波和块变换部分的蝶形阶段 基础。 在二维重叠双正交变换的情况下，将数字媒体数据分量重新映射到可以基于SIMD的基础上执行两者重叠前/后滤波和块变换的Hadamard算子的向量。