公开(公告)号：US08638657B1

公开(公告)日：2014-01-28

申请号：US13081055

申请日：2011-04-06

申请人： Kamatchi Soundaram Gopalakrishnan ,  Rajagopalan Subbiah ,  Prakash Kamath ,  Rohit Puri ,  Sachchidanand Vaidya

发明人： Kamatchi Soundaram Gopalakrishnan ,  Rajagopalan Subbiah ,  Prakash Kamath ,  Rohit Puri ,  Sachchidanand Vaidya

IPC分类号： G01R31/08 ,  H04L12/28

CPC分类号： H04L49/351 ,  H04L49/40 ,  H04L49/555

摘要： A network device may receive first qualification indicators, for a first signal, from all line cards of the network device. The network device may, in response to the first qualification indicators, transmit instructions to all of the line cards to use the first signal. The network device may further receive second qualification indicators, for a second signal, from all of the line cards. In response to the second qualification indicators, the network device may store information for the second signal in order to use the second signal as a backup signal.

摘要翻译： 网络设备可以从网络设备的所有线路卡接收用于第一信号的第一鉴定指示符。 网络设备可以响应于第一鉴定指示符向所有线路卡发送使用第一信号的指令。 网络设备还可以从所有线路卡接收第二信号的第二鉴定指示符。 响应于第二鉴定指示符，网络设备可以存储第二信号的信息，以便使用第二信号作为备用信号。

公开(公告)号：US08806063B1

公开(公告)日：2014-08-12

申请号：US13180286

申请日：2011-07-11

申请人： Prakash Kamath ,  Apurva Mehta ,  Kamatchi Gopalakrishnan ,  Rajagopalan Subbiah ,  Rohit Puri ,  Vikram Bobade

发明人： Prakash Kamath ,  Apurva Mehta ,  Kamatchi Gopalakrishnan ,  Rajagopalan Subbiah ,  Rohit Puri ,  Vikram Bobade

IPC分类号： G06F1/12 ,  G06F15/16 ,  H04J3/06

CPC分类号： G06F1/14 ,  G06F1/12 ,  H04J3/0667

摘要： A network device may include a timing module and at least one interface. The timing module determines a local time of the network device indicating when the network device sends a synchronization start message. The at least one interface sends the synchronization start message to a time client device to set the current time of day on the time client device, receives a synchronization response message from the time client device indicating that the current time of day of the time client device was set, and sends a synchronization success message to the time client device indicating that the time client device has correctly set its current time of day.

摘要翻译： 网络设备可以包括定时模块和至少一个接口。 定时模块确定网络设备的本地时间，指示网络设备何时发送同步开始消息。 所述至少一个接口将同步开始消息发送到时间客户端设备，以在客户端设备的时间设置当前时间，从时间客户端设备接收指示当前时间的客户端设备的同步响应消息 并且向客户端设备发送指示时间客户端设备正确地设置其当前时间的同步成功消息。

公开(公告)号：US07884742B2

公开(公告)日：2011-02-08

申请号：US11422974

申请日：2006-06-08

申请人： Rohit Puri ,  Parthasarathy Sriram

发明人： Rohit Puri ,  Parthasarathy Sriram

IPC分类号： H03M7/40

CPC分类号： H04N19/91 ,  H04N19/103 ,  H04N19/105 ,  H04N19/124 ,  H04N19/129 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70

摘要： A system for compressing digital data by representing a portion of it predictionally and transformationally as a block of transform coefficients, then quantizing that block selectively into a set of encoding symbols based on an indication whether the transform coefficients represent the portion as having a particular characteristic, and then by encoding the set of encoding symbols into a data bit stream. In particular, frequency may be used as the characteristic of the digital data in many applications.

摘要翻译： 一种用于通过将数据数据预先和变换地表示为变换系数块来压缩数字数据的系统，然后基于变换系数是否表示该部分具有特定特征的指示将该块有选择地量化到一组编码符号中， 然后通过将该组编码符号编码成数据比特流。 特别地，频率可以用作许多应用中数字数据的特征。

公开(公告)号：US07778328B2

公开(公告)日：2010-08-17

申请号：US10816051

申请日：2004-03-31

申请人： Sundar Vedula ,  Rohit Puri ,  Ali J. Tabatabai

发明人： Sundar Vedula ,  Rohit Puri ,  Ali J. Tabatabai

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

CPC分类号： H04N19/57 ,  H04N19/597 ,  H04N19/61

摘要： A motion estimation method and apparatus for video coding of a multi-view sequence is described. In one embodiment, a motion estimation method includes identifying one or more pixels in a first frame of a multi-view video sequence, and constraining a search range associated with a second frame of the multi-view video sequence based on an indication of a desired correlation between efficient coding and semantic accuracy. The semantic accuracy relies on use of geometric configurations of cameras capturing the multi-view video sequence. The method further includes searching the second frame within the constrained search range for a match of the pixels identified in the first frame.

摘要翻译： 描述了用于多视图序列的视频编码的运动估计方法和装置。 在一个实施例中，运动估计方法包括识别多视点视频序列的第一帧中的一个或多个像素，以及基于所期望的视点视频序列的指示约束与多视点视频序列的第二帧相关联的搜索范围 高效编码与语义准确度之间的相关性。 语义准确性依赖于使用捕获多视图视频序列的摄像机的几何配置。 该方法还包括搜索约束搜索范围内的第二帧以获得在第一帧中识别的像素的匹配。

公开(公告)号：US20070268166A1

公开(公告)日：2007-11-22

申请号：US11437206

申请日：2006-05-19

申请人： Rohit Puri ,  Partha Sriram

发明人： Rohit Puri ,  Partha Sriram

IPC分类号： H03M7/00

CPC分类号： H03M7/425 ,  H03M7/40

摘要： Systems and methods for optimizing system performance in variable length decoding systems are described. Embodiments are described in which decode tables are analyzed and elements of the tables sorted by probability of occurrence. Storage of elements can be determined by probability of occurrence and embodiments of the present invention can optimize system efficiency by storing most likely entries into fast-memory and least likely entries in slowest memory. In certain embodiments, a single large table is provided that cannot fit into decoder fast-memory. In some embodiments, individual elements can be optimized for storage in fast-memory by selecting more frequently occurring entries or groups of entries into decoder memory.

摘要翻译： 描述了可变长度解码系统中优化系统性能的系统和方法。 对实施例进行说明，其中解析表被分析，并且按照发生概率对表中的元素进行排序。 可以通过发生概率来确定元素的存储，并且本发明的实施例可以通过将最可能的条目存储在最慢的存储器中的快速存储器和最不可能的条目中来优化系统效率。 在某些实施例中，提供了不能适应解码器快速存储器的单个大表。 在一些实施例中，通过选择更频繁出现的条目或条目组到解码器存储器中，各个元件可以被优化用于存储在快速存储器中。

公开(公告)号：US08724702B1

公开(公告)日：2014-05-13

申请号：US11394031

申请日：2006-03-29

申请人： Ravi Bulusu ,  Rohit Puri

发明人： Ravi Bulusu ,  Rohit Puri

IPC分类号： H04N7/12

CPC分类号： H04N19/137 ,  H04N19/109 ,  H04N19/176 ,  H04N19/61

摘要： A framework for efficient sum of absolute difference (SAD) computations for variable block size, sub-pixel motion estimation is presented. Simultaneous, or parallelized, SAD computations can be performed by storing and re-using previous SAD computational information, which can speed up the performance of a motion estimation module by reducing the number of cycles necessary to perform a particular motion estimation algorithm.

摘要翻译： 提出了用于可变块大小，子像素运动估计的绝对差（SAD）计算的有效总和的框架。 可以通过存储和重新使用先前的SAD计算信息来执行同时或并行的SAD计算，其可以通过减少执行特定运动估计算法所需的周期数来加速运动估计模块的性能。

公开(公告)号：US20130066623A1

公开(公告)日：2013-03-14

申请号：US13231635

申请日：2011-09-13

申请人： Jim Chen Chou ,  Rohit Puri ,  Tapabrata Biswas

发明人： Jim Chen Chou ,  Rohit Puri ,  Tapabrata Biswas

IPC分类号： G06F15/16 ,  H04N7/15 ,  G06F17/28

CPC分类号： G06F17/289 ,  H04L65/4084 ,  H04L65/605 ,  H04L67/2823 ,  H04L69/04 ,  H04L69/28 ,  H04N7/15

摘要： An example method may include receiving a media stream from a first endpoint, where the media stream is intended for a second endpoint; processing the media stream according to at least one processing option; compressing the media stream; and communicating the media stream to the second endpoint. In more specific instances, the processing may include converting a speech in the media stream to text in a first language; converting the text in the first language to text in a second language; rendering the text in the second language; and adding the rendered text in the media stream.

摘要翻译： 示例性方法可以包括从第一端点接收媒体流，其中媒体流旨在用于第二端点; 根据至少一个处理选项处理所述媒体流; 压缩媒体流; 并将媒体流传送到第二端点。 在更具体的实例中，处理可以包括将媒体流中的语音转换为第一语言的文本; 将第一语言的文本转换为第二语言的文本; 以第二语言呈现文本; 并在媒体流中添加渲染的文本。

公开(公告)号：US08379717B2

公开(公告)日：2013-02-19

申请号：US12405179

申请日：2009-03-16

申请人： Deepak S. Turaga ,  Rohit Puri ,  Ali J. Tabatabai

发明人： Deepak S. Turaga ,  Rohit Puri ,  Ali J. Tabatabai

IPC分类号： H04N7/12

CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/182 ,  H04N19/61 ,  H04N19/63

摘要： A method and apparatus for encoding video frames is described. In one embodiment, an encoding method includes jointly transforming a set of pixels into high-pass data using an orthonormal transform. The set of pixels includes at least one reference pixel and predicted pixels. The method further includes generating low-pass data using the reference pixel and the high-pass data.

公开(公告)号：US07605725B2

公开(公告)日：2009-10-20

申请号：US12022065

申请日：2008-01-29

申请人： Rohit Puri ,  Partha Sriram

发明人： Rohit Puri ,  Partha Sriram

IPC分类号： H03M7/40

CPC分类号： H03M7/425 ,  H03M7/40

摘要： Systems and methods for optimizing system performance in variable length decoding systems are described. Embodiments are described in which decode tables are analyzed and elements of the tables sorted by probability of occurrence. Storage of elements can be determined by probability of occurrence and embodiments of the present invention can optimize system efficiency by storing most likely entries into fast-memory and least likely entries in slowest memory. In certain embodiments, a single large table is provided that cannot fit into decoder fast-memory. In some embodiments, individual elements can be optimized for storage in fast-memory by selecting more frequently occurring entries or groups of entries into decoder memory.

摘要翻译： 描述了可变长度解码系统中优化系统性能的系统和方法。 对实施例进行说明，其中解析表被分析，并且按照发生概率对表中的元素进行排序。 可以通过发生概率来确定元素的存储，并且本发明的实施例可以通过将最可能的条目存储在最慢的存储器中的快速存储器和最不可能的条目中来优化系统效率。 在某些实施例中，提供了不能适应解码器快速存储器的单个大表。 在一些实施例中，通过选择更频繁出现的条目或条目组到解码器存储器中，各个元件可以被优化用于存储在快速存储器中。

公开(公告)号：US07324026B2

公开(公告)日：2008-01-29

申请号：US11437206

申请日：2006-05-19

申请人： Rohit Puri ,  Partha Sriram

发明人： Rohit Puri ,  Partha Sriram

IPC分类号： H03M7/40

CPC分类号： H03M7/425 ,  H03M7/40

摘要： Systems and methods for optimizing system performance in variable length decoding systems are described. Embodiments are described in which decode tables are analyzed and elements of the tables sorted by probability of occurrence. Storage of elements can be determined by probability of occurrence and embodiments of the present invention can optimize system efficiency by storing most likely entries into fast-memory and least likely entries in slowest memory. In certain embodiments, a single large table is provided that cannot fit into decoder fast-memory. In some embodiments, individual elements can be optimized for storage in fast-memory by selecting more frequently occurring entries or groups of entries into decoder memory.

摘要翻译： 描述了可变长度解码系统中优化系统性能的系统和方法。 对实施例进行说明，其中解析表被分析，并且按照发生概率对表中的元素进行排序。 可以通过发生概率来确定元素的存储，并且本发明的实施例可以通过将最可能的条目存储在最慢的存储器中的快速存储器和最不可能的条目中来优化系统效率。 在某些实施例中，提供了不能适应解码器快速存储器的单个大表。 在一些实施例中，通过选择更频繁出现的条目或条目组到解码器存储器中，各个元件可以被优化用于存储在快速存储器中。