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11. 发明申请

US20100177815A1 SYSTEMS AND METHODS FOR PERFORMING COMBINED EQUALIZATION IN COMMUNICATION SYSTEMS 有权
标题翻译：用于在通信系统中执行组合均衡的系统和方法
公开(公告)号：US20100177815A1
公开(公告)日：2010-07-15
申请号：US12351071
申请日：2009-01-09
申请人： Rahul Garg , Kunal Lal , Devesh Chauhan , Patrick Duvaut
发明人： Rahul Garg , Kunal Lal , Devesh Chauhan , Patrick Duvaut
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04L25/03159 , H04L2025/03414 , H04L2025/03605 , H04L2025/03617
摘要： A system is described for performing combined equalization. The system comprises a time domain equalizer (TEQ) configured to receive a signal and shorten a CIR (channel impulse response) of the received signal, a Fast Fourier Transform (FFT) module for demodulating the received signal, and an equalization block for reducing inter-carrier interference (ICI) and inter-symbol interference (ISI). The equalization block comprises at least one of: a feed forward equalizer and a feed back equalizer. The system further comprises a slicer circuit configured to generate a hard-limited decision for a symbol corresponding to the received signal.
摘要翻译：描述了用于执行组合均衡的系统。该系统包括被配置为接收信号并缩短接收信号的CIR（信道脉冲响应）的时域均衡器（TEQ），用于解调接收信号的快速傅里叶变换（FFT）模块，以及用于减少接收信号的均衡块载波干扰（ICI）和符号间干扰（ISI）。均衡块包括以下中的至少一个：前馈均衡器和反馈均衡器。该系统还包括限幅器电路，被配置为产生对应于接收信号的符号的硬限制判定。

12. 发明授权

US07680229B2 Method of determining a synchronous phase 有权
标题翻译：确定同步相位的方法
公开(公告)号：US07680229B2
公开(公告)日：2010-03-16
申请号：US11693705
申请日：2007-03-29
申请人： Rahul Garg
发明人： Rahul Garg
IPC分类号： H04L7/00 , H04L27/06
CPC分类号： H04L27/066
摘要： A method of determining a synchronous phase includes receiving a correlation sequence, and selecting one or more correlated signals from the correlation sequence. Then, when the number of selected correlated signals is odd, the synchronous phase corresponding to a central correlated signal is selected.
摘要翻译：确定同步相位的方法包括接收相关序列，以及从相关序列中选择一个或多个相关信号。然后，当所选择的相关信号的数量为奇数时，选择与中央相关信号相对应的同步相位。

13. 发明授权

US07676000B2 Systems and methods for an adaptive rake receiver 失效
标题翻译：自适应耙式接收机的系统和方法
公开(公告)号：US07676000B2
公开(公告)日：2010-03-09
申请号：US10758054
申请日：2004-01-15
申请人： Rahul Garg , Shobha Ramaswamy , Kiran Devanahalli , Satyanarayana Sanpini
发明人： Rahul Garg , Shobha Ramaswamy , Kiran Devanahalli , Satyanarayana Sanpini
IPC分类号： H04L27/06
CPC分类号： H04B1/7115 , H04W88/02
摘要： A technique for signal distortion compensation using a filter that can support a higher delay spread distortion without substantially increasing hardware complexity. In one example embodiment, an adaptive receiver design compensates for signal distortions with the use of non-uniform tap delay filters. The non-uniform tap delay filters are used to output an adaptively channel matched signal for decoding.
摘要翻译：使用可以支持更高延迟扩展失真的滤波器的信号失真补偿技术，而不会显着增加硬件复杂度。在一个示例实施例中，自适应接收机设计通过使用非均匀抽头延迟滤波器来补偿信号失真。非均匀抽头延迟滤波器用于输出自适应信道匹配信号进行解码。

14. 发明申请

US20090310658A1 Systems and Methods for Positioning and Messaging of Reserved Tones for Peak-to-Average Ratio (PAR) Reduction in DSL Systems 有权
标题翻译： DSL系统中峰值平均比（PAR）降低的保留音的定位和消息传递系统和方法
公开(公告)号：US20090310658A1
公开(公告)日：2009-12-17
申请号：US12138657
申请日：2008-06-13
申请人： Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Harish Jethanandani
发明人： Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Harish Jethanandani
IPC分类号： H04B1/38
CPC分类号： H04M11/062
摘要： Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
摘要翻译：用于降低发射机峰值平均比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过应用时域补偿信号来减小PAR，该时域补偿信号在时域补偿信号使用为了减少PAR的目的而被保留的音调的同时减小时域信号中的峰值的幅度。可以通过改变数字用户线（xDSL）系统中的典型启动过程来实现用于PAR的这些保留音调的预留。可以使用低复杂度算法或使用自适应技术来实现使用保留的音调来减少PAR。

15. 发明授权

US07457357B2 Decision feedback equalizer design with interference removal and reduced error propagation 有权
标题翻译：决策反馈均衡器设计，具有干扰消除和减少的误差传播
公开(公告)号：US07457357B2
公开(公告)日：2008-11-25
申请号：US11121455
申请日：2005-05-04
申请人： Rahul Garg , Shobha Ramaswamy , Aparna Chahrakodi Krishnashastry
发明人： Rahul Garg , Shobha Ramaswamy , Aparna Chahrakodi Krishnashastry
IPC分类号： H03H7/30 , H03H7/40
CPC分类号： H04B1/7097
摘要： A method for designing a decision feedback equalizer (DFE) that handles packet based input data signals uses an inter symbol interference (ISI) removal loop and an inter chip interference (ICI) removal loop which is nested inside the ISI loop, for maximum interference removal and limited error propagation. The DFE may use a feed forward filter and a series connected chip-flow control buffer for receiving the input data signals. The DFE of the invention has application in 802.11 b PHY and 802.11 g PHY scenarios and any application involving a DFE with the need for minimum error propagation. Taught herein is a combined weighted DFE with erasure provision and interference removal in an optional two step mechanism. An article comprising a computer storage medium to execute the DFE design method is also disclosed.
摘要翻译：用于设计处理基于分组的输入数据信号的判决反馈均衡器（DFE）的方法使用嵌套在ISI环路内的码间干扰（ISI）去除环路和芯片间干扰（ICI）去除环路，以实现最大干扰去除和有限的误差传播。 DFE可以使用前馈滤波器和串联连接的芯片流控制缓冲器来接收输入数据信号。本发明的DFE具有在802.11b PHY和802.11g PHY场景中的应用以及涉及需要最小误差传播的DFE的任何应用。这里介绍的是一种组合加权DFE，具有可选的两步机制中的擦除设置和干扰消除。还公开了一种包括用于执行DFE设计方法的计算机存储介质的物品。

16. 发明申请

US20080267332A1 METHOD AND SYSTEM FOR COMPENSATING FOR THE EFFECT OF PHASE DRIFT IN A DATA SAMPLING CLOCK 有权
标题翻译：用于补偿数据采样时钟中相位干扰的影响的方法和系统
公开(公告)号：US20080267332A1
公开(公告)日：2008-10-30
申请号：US12098453
申请日：2008-04-07
申请人： Rahul Garg , Nandan Tripathi
发明人： Rahul Garg , Nandan Tripathi
IPC分类号： H04L7/04
CPC分类号： H04L7/0337
摘要： A method and system for compensating for the effect of phase drift in a data sampling clock during data transfer between sub-systems of an electronic device. The sub-systems of the electronic device transfer data frame by frame. Each frame includes multiple data windows. Each data window includes multiple data bits. The method includes sampling each of the one or more data bits of a data window at one or more early instances, a prompt instance, and one or more late instances. Further, the method includes calculating the phase-error value of the sampled data window, based on the data sampled. Furthermore, the method includes compensating for the effect of phase drift in the data sampling clock, based on the calculated phase error value.
摘要翻译：一种用于在电子设备的子系统之间的数据传输期间补偿数据采样时钟中的相位漂移的影响的方法和系统。电子设备的子系统逐帧传输数据。每个帧包括多个数据窗口。每个数据窗口包括多个数据位。该方法包括在一个或多个早期实例，提示实例和一个或多个后期实例中对数据窗口的一个或多个数据位中的每一个进行采样。此外，该方法包括基于采样的数据来计算采样数据窗口的相位误差值。此外，该方法包括基于所计算的相位误差值来补偿数据采样时钟中的相位漂移的影响。

17. 发明授权

US07016860B2 Honoring of electronic coupons 失效
公开(公告)号：US07016860B2
公开(公告)日：2006-03-21
申请号：US09782934
申请日：2001-02-13
申请人： Natwar Modani , Parul A. Mittal , Rahul Garg , Alok Aggarwal
发明人： Natwar Modani , Parul A. Mittal , Rahul Garg , Alok Aggarwal
IPC分类号： G06F17/60
CPC分类号： G06Q20/367 , G06Q20/3674 , G06Q30/018 , G06Q30/02 , G06Q30/0222 , G06Q30/0225 , G06Q30/0239 , G06Q30/0641
摘要： An electronic coupon, an electronic commerce system, and a method for the honoring of electronic coupons utilizing computing equipment are disclosed. In the method, an issuing party issues an electronic coupon to a customer. The customer presents the coupon for redemption to a redemption party. The redemption party transmits the coupon to an authentication party for authentication. If authentic, the authentication party charges the redemption party a fee and passes that fee to the issuing party. The redemption party honors the coupon for the customer and seeking reimbursement of the fee from the issuing party. The electronic coupon has a plurality of data fields, including: a coupon identifier, x, a first one-way hash function field, f(x), and a secure signature field.

18. 发明授权

US07013286B1 Generation, distribution, storage, redemption, validation and clearing of electronic coupons 失效
标题翻译：电子优惠券的生成，分发，存储，赎回，验证和清算
公开(公告)号：US07013286B1
公开(公告)日：2006-03-14
申请号：US09475217
申请日：1999-12-30
申请人： Alok Aggarwal , Rahul Garg , Parul Alok Mittal , Natwar Modani
发明人： Alok Aggarwal , Rahul Garg , Parul Alok Mittal , Natwar Modani
IPC分类号： G06F17/60
CPC分类号： G07F17/42 , G06Q20/045 , G06Q20/387 , G06Q30/02 , G06Q30/0225
摘要： A method and system generates, distributes, stores, redeems, validates and clears electronic manufacturer coupons and electronic store coupons. A coupon mint generates unforgable blank digital coupons. The promoter of the offer then writes the terms and conditions and other details of the offer, on blank coupons to customize these. These customized coupons are digitally signed by the promoter and distributed to potential customers. A customer may either present these coupons electronically for redemption to an online store, or print these coupons and present them to a conventional offline store. The store may check the authenticity of a coupon by verifying the digital signature and also verifying if the coupon has not been used earlier by contacting a verification center. The store collects all redeemed coupons and sends these to manufacturer for clearing. The verification center verifies that the coupon is authentic and has not already been used before.
摘要翻译：方法和系统生成，分销，存储，赎回，验证和清除电子制造商优惠券和电子商店优惠券。优惠券薄荷产生不可阻挡的空白数位优惠券。报价的推动者随后将空白优惠券的条款和条件以及报价的其他细节写入定制。这些定制优惠券由促销者数字签名并分发给潜在客户。客户可以以电子方式将这些优惠券呈现给在线商店，或者打印这些优惠券并将其呈现给传统的离线商店。商店可以通过验证数字签名来检查优惠券的真实性，还可以通过联系验证中心来验证优惠券是否更早被使用。商店收集所有兑换的优惠券，并将其发送给制造商清算。验证中心验证优惠券是否可信，以前尚未使用。

19. 发明授权

US06571216B1 Differential rewards with dynamic user profiling 有权
标题翻译：差异奖励与动态用户分析
公开(公告)号：US06571216B1
公开(公告)日：2003-05-27
申请号：US09483603
申请日：2000-01-14
申请人： Rahul Garg , Parul Alok Mittal , Natwar Modani
发明人： Rahul Garg , Parul Alok Mittal , Natwar Modani
IPC分类号： G06F1760
CPC分类号： G06Q30/02 , G06Q30/0224 , G06Q30/0239
摘要： A methodology and system allows a plurality of reward scheme owners to give differential rewards, through a plurality of reward distribution agents, to various users based on the user profile. The reward scheme owner may be a seller, a manufacturer, a sales promotion agent or even an intermediary. Similarly, the reward distribution agent may be an on-line or a physical retailer, a broker, a seller or an intermediary. Also the users may be consumers, businesses, brokers or other intermediaries. In one specific case, a reward scheme owner defines a plurality of reward schemes, including at least one differential reward scheme giving different rewards to different users. The reward scheme owner communicates these to a central reward scheme database server. The reward scheme owners may or may not advertise these schemes. The user visits an online or a physical store. The store acting as a reward distribution agent dynamically profiles the user, queries the central reward scheme database server if the user profile meets the criterion for one or more rewards and offers the applicable rewards to the user. The store later receives reimbursement for the rewards offered to various users, from the reward scheme owners. This methodology and system may be used for offering targeted or differential discounts on different products and services, offering different promotional schemes on different combination of products, giving loyalty points, electronically distributing prizes, free samples, product warranties, tie-in promotions, cross selling, up selling, premiums, memberships, card discounts, organizing contests, sweepstakes, games and offering other similar rewards.
摘要翻译：一种方法和系统允许多个奖励计划所有者通过多个奖励分发代理根据用户简档给予各种用户不同的奖励。奖励计划所有者可以是卖家，制造商，促销代理或甚至中介。类似地，奖励分发代理可以是在线或实体零售商，经纪人，卖方或中介。用户也可能是消费者，企业，经纪人或其他中间商。在一个具体情况下，奖励计划所有者定义了多个奖励方案，包括给予不同用户不同奖励的至少一个差别奖赏方案。奖励计划所有者将其传达给中央奖励计划数据库服务器。奖励计划所有人可能会也可能不会宣传这些计划。用户访问在线或实体店。作为奖励分发代理的商店动态地描述用户，如果用户简档满足一个或多个奖励的标准并向用户提供适用的奖励，则查询中央奖励方案数据库服务器。该商店随后从奖励计划所有者收到向各种用户提供的奖励的报销。该方法和系统可用于为不同的产品和服务提供有针对性的或差异化的折扣，为不同的产品组合提供不同的促销方案，提供积分，电子分发奖品，免费样品，产品保证，促销活动，交叉销售，销售，保费，会员卡，卡片折扣，组织比赛，抽奖，游戏，并提供其他类似的奖励。

20. 发明授权

US08379947B2 Spatio-temporal image reconstruction using sparse regression and secondary information 有权
标题翻译：使用稀疏回归和二次信息的时空图像重建
公开(公告)号：US08379947B2
公开(公告)日：2013-02-19
申请号：US12790199
申请日：2010-05-28
申请人： Rahul Garg , Monu Kedia , Yogish Sabharwal
发明人： Rahul Garg , Monu Kedia , Yogish Sabharwal
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/412 , G06T2211/424
摘要： A spatio-temporal image of an object is reconstructed based on captured data characterizing the object. The spatio-temporal image comprises a plurality of spatial images in respective time intervals, and at least a given one of the spatial images in one of the time intervals is reconstructed using not only captured data from a frame associated with that time interval but also captured data associated with one or more additional frames associated with other time intervals. The spatio-temporal image may be reconstructed by iteratively obtaining a solution to a minimization or maximization problem in a sparse domain and transforming the solution to an image domain. The transformation between the sparse domain and the image domain may utilize a spatio-temporal transformation implemented using a plurality of basis functions, one or more of which may be determined at least in part based on secondary information associated with the imaged object.
摘要翻译：基于表征对象的捕获数据来重构对象的时空图像。空间 - 时间图像包括各个时间间隔中的多个空间图像，并且使用不仅来自与该时间间隔相关联的帧的捕获数据来重构时间间隔之一中的至少一个空间图像中的给定的一个，而且还捕获与与其他时间间隔相关联的一个或多个附加帧相关联的数据。可以通过迭代地获得稀疏域中的最小化或最大化问题的解决方案并将解决方案转换为图像域来重构时空图像。稀疏域和图像域之间的变换可以利用使用多个基本函数实现的时空变换，其中的一个或多个可以至少部分地基于与成像对象相关联的次要信息来确定。

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