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1. 发明申请

US20120236912A1 METHOD AND SYSTEM FOR COMPENSATING FOR ESTIMATED DISTORTION IN A TRANSMITTER BY UTILIZING A DIGITAL PREDISTORTION SCHEME WITH A QUADRATURE FEEDBACK MIXER CONFIGURATION 有权
标题翻译：通过使用数字反馈混合器配置的数字预测方案来补偿发射机中的估计失真的方法和系统
公开(公告)号：US20120236912A1
公开(公告)日：2012-09-20
申请号：US13484474
申请日：2012-05-31
申请人： Arya Behzad , Ali Afsahi , Vikram Magoon , Mark Gonikberg , George Varghese , Guruprasad Revanna
发明人： Arya Behzad , Ali Afsahi , Vikram Magoon , Mark Gonikberg , George Varghese , Guruprasad Revanna
IPC分类号： H04B1/44
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2200/451 , H04L27/368
摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.
摘要翻译：提出了通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。

2. 发明授权

US08532577B2 Method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration 有权
标题翻译：通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统
公开(公告)号：US08532577B2
公开(公告)日：2013-09-10
申请号：US13484474
申请日：2012-05-31
申请人： Arya Behzad , Ali Afsahi , Vikram Magoon , Mark Gonikberg , George Varghese , Guruprasad Revanna
发明人： Arya Behzad , Ali Afsahi , Vikram Magoon , Mark Gonikberg , George Varghese , Guruprasad Revanna
IPC分类号： H04B1/00
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2200/451 , H04L27/368
摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.
摘要翻译：提出了通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。

3. 发明授权

US08219032B2 Method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration 有权
标题翻译：通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统
公开(公告)号：US08219032B2
公开(公告)日：2012-07-10
申请号：US11618876
申请日：2006-12-31
申请人： Arya Behzad , Ali Afsahi , Vikram Magoon , Mark Gonikberg , George Varghese , Guruprasad Revanna
发明人： Arya Behzad , Ali Afsahi , Vikram Magoon , Mark Gonikberg , George Varghese , Guruprasad Revanna
IPC分类号： H04B1/00
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2200/451 , H04L27/368
摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.
摘要翻译：提出了通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。

4. 发明授权

US08391808B2 Method and system for estimating and compensating non-linear distortion in a transmitter using calibration 失效
公开(公告)号：US08391808B2
公开(公告)日：2013-03-05
申请号：US12038996
申请日：2008-02-28
申请人： Mark Gonikberg , Luis Gutierrez , Colin Fraser , Arya Behzad , George Varghese
发明人： Mark Gonikberg , Luis Gutierrez , Colin Fraser , Arya Behzad , George Varghese
IPC分类号： H04B1/04
CPC分类号： H04L27/2626 , H03F1/3241 , H04B1/0475 , H04B2001/0425
摘要： Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using calibration are presented. Aspects of the system may include one more circuits that may enable estimation, within a single IC device, of distortion in output signals generated by a transmitter circuit. The circuitry may enable compensation of the estimated distortion by predistorting subsequent input signals. The transmitter circuit may generate subsequent output signals based on the predistorted subsequent input signals.

5. 发明申请

US20090221245A1 Method and system for estimating and compensating non-linear distortion in a transmitter using calibration 失效
标题翻译：用于使用校准估计和补偿发射机中的非线性失真的方法和系统
公开(公告)号：US20090221245A1
公开(公告)日：2009-09-03
申请号：US12038996
申请日：2008-02-28
申请人： Mark Gonikberg , Luis Gutierrez , Colin Fraser , Arya Behzad , George Varghese
发明人： Mark Gonikberg , Luis Gutierrez , Colin Fraser , Arya Behzad , George Varghese
IPC分类号： H04B1/04
CPC分类号： H04L27/2626 , H03F1/3241 , H04B1/0475 , H04B2001/0425
摘要： Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using calibration are presented. Aspects of the system may include one more circuits that may enable estimation, within a single IC device, of distortion in output signals generated by a transmitter circuit. The circuitry may enable compensation of the estimated distortion by predistorting subsequent input signals. The transmitter circuit may generate subsequent output signals based on the predistorted subsequent input signals.
摘要翻译：提出了一种用于使用校准估计和补偿发射机中的非线性失真的方法和系统的方面。系统的方面可以包括一个以上电路，其可以在单个IC器件内估计由发射机电路产生的输出信号中的失真。该电路可以通过预失真随后的输入信号来实现所估计的失真的补偿。发射机电路可以基于预失真的后续输入信号产生后续的输出信号。

6. 发明申请

US20110282932A1 ASYMMETRIC END HOST REDUNDANCY ELIMINATION FOR NETWORKS 有权
标题翻译：不平等的终端主机对网络的排除
公开(公告)号：US20110282932A1
公开(公告)日：2011-11-17
申请号：US12781782
申请日：2010-05-17
申请人： Ramachandran Ramjee , Bhavish Aggarwal , Pushkar Chitnis , George Varghese , Ashok Anand , Chitra Muthukrishnan , Athula Balachandran
发明人： Ramachandran Ramjee , Bhavish Aggarwal , Pushkar Chitnis , George Varghese , Ashok Anand , Chitra Muthukrishnan , Athula Balachandran
IPC分类号： G06F15/16
CPC分类号： H04L67/1002
摘要： An end host redundancy elimination system and method to provide redundancy elimination as an end system service. Embodiments of the system and method use optimization techniques that reduce server central processing unit (CPU) load and memory footprint as compared to existing approaches. For server storage, embodiments of the system and method use a suite of highly-optimized data structures for managing metadata and cached payloads. An optimized asymmetric max-match technique exploits the inherent structure in data maintained at the server and client and ensures that client processing load is negligible. A load-adaptive fingerprinting technique is used that is much faster than current fingerprinting techniques while still delivering similar compression. Load-adaptive means that embodiments of the fingerprinting technique can adapt CPU usage depending on server load. Embodiments of the system and method operate above the transmission control protocol (TCP) layer, thereby reducing the number of roundtrips needed for data transfer.
摘要翻译：终端主机冗余消除系统和方法，作为终端系统服务提供冗余消除。与现有方法相比，系统和方法的实施例使用减少服务器中央处理单元（CPU）负载和存储器占用的优化技术。对于服务器存储，系统和方法的实施例使用一组高度优化的数据结构来管理元数据和缓存的有效载荷。优化的非对称最大匹配技术利用了在服务器和客户机上维护的数据的固有结构，并确保客户端处理负载可以忽略不计。使用比当前指纹技术更快的负载自适应指纹技术，同时仍然提供类似的压缩。负载自适应意味着指纹技术的实施例可以根据服务器负载来调整CPU使用。系统和方法的实施例在传输控制协议（TCP）层之上操作，从而减少数据传输所需的往返次数。

7. 发明授权

US07817556B2 Modification of policing methods to make them more TCP-friendly 有权
标题翻译：修改监管方法使其更加TCP友好
公开(公告)号：US07817556B2
公开(公告)日：2010-10-19
申请号：US11408293
申请日：2006-04-20
申请人： Rong Pan , Flavio Bonomi , George Varghese
发明人： Rong Pan , Flavio Bonomi , George Varghese
IPC分类号： G01R31/08
CPC分类号： H04L47/215 , H04L47/193 , H04L47/20
摘要： Various improvements are provided for prior art policing methods, including token bucket methods and virtual time policing methods. Some preferred methods of the invention involve assigning a non-zero drop probability even when the packet would otherwise have been transmitted according to a prior art policing method. For example, a non-zero drop probability may be assigned even when there are sufficient tokens in a token bucket to allow transmission of the packet. A non-zero drop probability may be assigned, for example, when a token bucket level is at or below a predetermined threshold or according to a rate at which a token bucket is being emptied. Some implementations involve treating a token bucket as a virtual queue wherein the number of free elements in the virtual queue is proportional to the number of remaining tokens in the token bucket. Such implementations may involve predicting a future virtual queue size according to a previous virtual queue size and using this predicted value to calculate a drop probability.
摘要翻译：为现有技术的管理方法提供了各种改进，包括令牌桶方法和虚拟时间监管方法。本发明的一些优选方法涉及分配非零丢弃概率，即使当根据现有技术的监管方法将分组以其他方式传输时也是如此。例如，即使在令牌桶中有足够的令牌来允许分组的传输，也可以分配非零丢弃概率。例如，当令牌桶级别等于或低于预定阈值时或者根据令牌桶被清空的速率时，可以分配非零丢弃概率。一些实现涉及将令牌桶视为虚拟队列，其中虚拟队列中的空闲元素的数量与令牌桶中剩余令牌的数量成正比。这样的实现可以涉及根据先前的虚拟队列大小预测未来的虚拟队列大小，并且使用该预测值来计算丢弃概率。

8. 发明申请

US20080186974A1 SYSTEM AND METHOD TO PROCESS DATA PACKETS IN A NETWORK USING STATEFUL DECISION TREES 有权
标题翻译：用确定性决策方法在网络中处理数据包的系统和方法
公开(公告)号：US20080186974A1
公开(公告)日：2008-08-07
申请号：US11551932
申请日：2006-10-23
申请人： Sumeet Singh , George Varghese , Flavio Giovanni Bonomi , Jonathan J. Chang
发明人： Sumeet Singh , George Varghese , Flavio Giovanni Bonomi , Jonathan J. Chang
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L43/50 , H04L45/742 , H04L45/745 , H04L47/22 , H04L47/2441 , H04L47/32
摘要： A method and device to process a packet received by a network device is described. The method may comprise analyzing the packet to identify at least one set of a plurality of sets, mapping the at least one set to at least one functional unit, and performing functionality associated with the at least one functional unit. Analyzing the packet to identify at least one of a plurality of sets may comprise determining when the packet includes at least one set identifier, and identifying the at least one set based on the at least one set identifier. A set status identifier may be defined for each set, the set status identifier indicating when set identifiers associated with a corresponding set are detected in the packet. The device may be a router, switch or any other device that processes digital data e.g., packet data including packets headers, payload or the like.
摘要翻译：描述了一种处理由网络设备接收的分组的方法和设备。该方法可以包括分析分组以识别多个集合中的至少一个集合，将至少一个集合映射到至少一个功能单元，以及执行与至少一个功能单元相关联的功能。分析分组以识别多个集合中的至少一个集合可以包括确定分组何时包括至少一个集合标识符，以及基于至少一个集合标识符来识别该至少一个集合。可以为每个集合定义集合状态标识符，所设置的状态标识符指示何时在分组中检测到与对应集合相关联的集合标识符。该设备可以是处理数字数据的路由器，交换机或任何其他设备，例如包括分组报头，有效载荷等的分组数据。

9. 发明申请

US20060161986A1 Method and apparatus for content classification 有权
标题翻译：内容分类方法和装置
公开(公告)号：US20060161986A1
公开(公告)日：2006-07-20
申请号：US11272461
申请日：2005-11-09
申请人： Sumeet Singh , George Varghese , Michael Ayres , Michael Semanko , Bashir Eghbali , Travis Newhouse
发明人： Sumeet Singh , George Varghese , Michael Ayres , Michael Semanko , Bashir Eghbali , Travis Newhouse
IPC分类号： G06F12/14
CPC分类号： H04L63/0245 , H04L63/145
摘要： A method and apparatus is described to select a representative signature for use in identifying content in a packet stream. The method may comprise receiving the packet stream and obtaining content from a data payload of the packet. Thereafter, a plurality of signatures is identified from the content and a complexity score or a frequency score is determined based on the content. A signature of the plurality of signatures is then selected as the representative signature based on the complexity score or the frequency score.
摘要翻译：描述了一种方法和装置来选择用于识别分组流中的内容的代表性签名。该方法可以包括从分组的数据有效载荷接收分组流并获得内容。此后，根据内容识别多个签名，并且基于内容来确定复杂度分数或频率分数。然后，基于复杂度分数或频率得分，选择多个签名的签名作为代表签名。

10. 发明授权

US06560236B1 Virtual LANs 失效
标题翻译：虚拟局域网
公开(公告)号：US06560236B1
公开(公告)日：2003-05-06
申请号：US09411773
申请日：1999-10-04
申请人： George Varghese , John Bassett , Robert Eugene Thomas , Peter Higginson , Graham Cobb , Barry A. Spinney , Robert Simcoe
发明人： George Varghese , John Bassett , Robert Eugene Thomas , Peter Higginson , Graham Cobb , Barry A. Spinney , Robert Simcoe
IPC分类号： H04L1228
CPC分类号： H04L12/467 , H04L12/18 , H04L12/462 , H04L12/4625
摘要： A network device for interconnecting computer networks, the device including a bridge having a plurality of ports through which network communications pass to and from the bridge, the bridge also including a first interface enabling a user to partition the plurality of bridge ports into a plurality of groups, wherein each group represents a different virtual network, wherein the bridge treats all ports within a given group as part of the virtual network corresponding to that group and the bridge isolates the virtual networks from each other, whereby any communications received at a first port of the bridge are directly sent by the bridge to another bridge port only if the other bridge port and the first bridge port are part of the same group.
摘要翻译：一种用于互连计算机网络的网络设备，所述设备包括具有多个端口的桥接器，所述网桥通过所述多个端口传递到所述桥接器，所述桥接器还包括使得用户能够将所述多个桥接端口划分成多个组，其中每个组表示不同的虚拟网络，其中所述桥将给定组内的所有端口视为与所述组对应的所述虚拟网络的一部分，并且所述桥将所述虚拟网络彼此隔离，由此在第一端口处接收到的任何通信的桥接器直接由桥接器发送到另一个桥接端口，只有当另一个桥接端口和第一个桥接端口是同一个组的一部分时。

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