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1. 发明授权

US07213080B2 Intelligent radio design for satellite gateways and terrestrial base stations 失效
标题翻译：卫星网关和地面基站的智能无线电设计
公开(公告)号：US07213080B2
公开(公告)日：2007-05-01
申请号：US09904860
申请日：2001-07-16
申请人： Prakash Chakravarthi , Anupama Dharap
发明人： Prakash Chakravarthi , Anupama Dharap
IPC分类号： G06F15/16 , H04Q7/20
CPC分类号： H04B7/18513
摘要： An adaptive intelligent radio module (IRM) is provided in an intelligent radio design for gateways between satellite and terrestrial networks. The intelligent radio module monitors channel signal quality at the channel units of the gateway to determine whether the quality of a channel unit is below a predetermined quality threshold. If the channel quality is greater than or equal to the predetermined quality threshold, then a standard channel unit is employed, and nominal algorithms are used to process the channel. However, if the channel quality is below the quality threshold, then a high performance channel unit is used that employs complex algorithms unique to the particular quality defect of the channel quality. Various additional functions can be performed at the receive side and the transmit side of the channel units monitored by the IRM. Further, the IRM can add or enhance existing algorithms in accordance with new technology.
摘要翻译：在卫星和地面网络之间的网关的智能无线电设计中提供了自适应智能无线电模块（IRM）。智能无线电模块在网关的信道单元监视信道信号质量，以确定信道单元的质量是否低于预定质量阈值。如果信道质量大于或等于预定质量阈值，则使用标准信道单元，并且使用标称算法来处理信道。然而，如果信道质量低于质量阈值，则使用采用独特于信道质量的特定质量缺陷的复杂算法的高性能信道单元。可以在由IRM监视的通道单元的接收侧和发送侧执行各种附加功能。此外，IRM可以根据新技术添加或增强现有算法。

2. 发明申请

US20080175257A1 System and method for automatically segmenting and merging routing domains within networks 有权
标题翻译：网络内自动分段和合并路由域的系统和方法
公开(公告)号：US20080175257A1
公开(公告)日：2008-07-24
申请号：US11656951
申请日：2007-01-24
申请人： Timothy Clark Winter , Minakshisundaran Balasubramanian Anand , Prakash Chakravarthi
发明人： Timothy Clark Winter , Minakshisundaran Balasubramanian Anand , Prakash Chakravarthi
IPC分类号： H04L12/56
CPC分类号： H04L45/54 , H04L45/04 , H04W40/248
摘要： A system and a method for automatically segmenting and merging routing domains within a network. The system includes one or more gateway devices and a plurality of nodes segmented into one or more routing domains. Each of said plurality of nodes maintains a single gateway device from among said plurality of gateway devices as the node's primary gateway at any time. Each of said gateway devices possesses a gateway color attribute. Each of said plurality of nodes maintains a node color attribute value whose value is derived from the value of said gateway color attribute of then node's primary gateway. Each node's routing domain is determined by the node's color attribute value.
摘要翻译：一种用于在网络中自动分段和合并路由域的系统和方法。系统包括一个或多个网关设备和分段到一个或多个路由域中的多个节点。所述多个节点中的每一个在任何时间将所述多个网关设备中的单个网关设备维护为节点的主要网关。所述网关设备中的每一个具有网关颜色属性。所述多个节点中的每一个维护节点颜色属性值，其值是从节点主网关的所述网关颜色属性的值导出的。每个节点的路由域由节点的颜色属性值确定。

3. 发明授权

US06560303B1 Joint frame, carrier and clock synchronization scheme 有权
标题翻译：联合帧，载波和时钟同步方案
公开(公告)号：US06560303B1
公开(公告)日：2003-05-06
申请号：US09695980
申请日：2000-10-26
申请人： Yigang Fan , Prakash Chakravarthi
发明人： Yigang Fan , Prakash Chakravarthi
IPC分类号： H04L700
CPC分类号： H04L27/2332 , H04L7/042 , H04L7/046 , H04L2027/0065 , H04L2027/0095
摘要： The present invention provides a method to achieve frame synchronization from a received data sequence before the carrier phase and frequency offset recovery for any MPSK modulated signals on the basis of maximum likelihood theory. Two overhead configurations are considered in developing the frame synchronization algorithms. One overhead configuration consists of a unique word followed by a preamble, and the other consists of unique word only. For the first overhead, the frame synchronization can be decoupled from carrier recovery because the preamble following the unique word is a known sequence pattern. In this case, the maximum-likelihood frame synchronization rule is simply a complex correlation. In second overhead, the unique word is immediately followed by random traffic data and thus the coupling effects are generated between frame synchronization and carrier recovery. These coupling effects are not dominant, however, and may be neglected in actual practice. After the frame synchronization is achieved, the time position is already known. The data-aided algorithms for carrier phase and frequency-offset estimation are derived using maximum likelihood theory.
摘要翻译：本发明提供一种在最大似然理论的基础上，针对任何MPSK调制信号的载波相位和频率偏移恢复之前的接收数据序列实现帧同步的方法。在开发帧同步算法时考虑了两种开销配置。一个开销配置由独特的单词和前导码组成，另一个由唯一的单词组成。对于第一开销，帧同步可以与载波恢复分离，因为唯一字之后的前导码是已知的序列模式。在这种情况下，最大似然帧同步规则简单地是复杂的相关。在第二个开销中，唯一字随后是随机流量数据，因此在帧同步和载波恢复之间产生耦合效应。然而，这些耦合效应并不占主导地位，在实践中可能被忽略。在实现帧同步之后，时间位置是已知的。使用最大似然理论推导载波相位和频偏估计的数据辅助算法。

4. 发明申请

US20080059947A1 SYSTEM AND METHOD FOR AUTOMATING GENERATION OF AN AUTOMATED SENSOR NETWORK 有权
标题翻译：自动传感器网络自动生成系统与方法
公开(公告)号：US20080059947A1
公开(公告)日：2008-03-06
申请号：US11931443
申请日：2007-10-31
申请人： Minakshisundaran Anand , Rajesh Thakkar , Prakash Chakravarthi
发明人： Minakshisundaran Anand , Rajesh Thakkar , Prakash Chakravarthi
IPC分类号： G06F9/44
CPC分类号： G06F8/00 , G05B19/0426 , G05B2219/23293
摘要： An application software generator automatically generates an application software unit. The application software generator includes an application composer that combines components extracted from a component repository with an application framework to generate the application software unit. Each component in the component repository includes a component shell, a component interface and a component core. The application framework includes configurable parameters that determine how the application software unit is generated and operates. The configurable parameters can be entered by a user using a graphical user interface. The user can be assisted using a wizard format. The application framework also provides connectivity between components so that they can pass messages to one another. The connectivity can be, for example, by a message bus or event registry and event dispatch. Components themselves can be automatically generated using the application software generator. Uses of the application software generator include creation of sensor/actuator networks and test script generation.
摘要翻译：应用软件生成器自动生成应用软件单元。应用软件生成器包括将从组件仓库提取的组件与应用程序框架组合的应用程序编制器，以生成应用程序软件单元。组件存储库中的每个组件都包含组件外壳，组件接口和组件核心。应用程序框架包括可配置参数，用于确定应用程序软件单元是如何生成和操作的。可配置参数可由用户使用图形用户界面输入。可以使用向导格式来辅助用户。应用程序框架还提供组件之间的连接，以便它们可以将消息传递给彼此。连接可以是例如消息总线或事件注册表和事件发送。组件本身可以使用应用软件生成器自动生成。应用软件生成器的使用包括创建传感器/执行器网络和测试脚本生成。

5. 发明授权

US08295295B2 System and method for automatically segmenting and merging routing domains within networks 有权
标题翻译：网络内自动分段和合并路由域的系统和方法
公开(公告)号：US08295295B2
公开(公告)日：2012-10-23
申请号：US11656951
申请日：2007-01-24
申请人： Timothy Clark Winter , Minakshisundaran Balasubramanian Anand , Prakash Chakravarthi
发明人： Timothy Clark Winter , Minakshisundaran Balasubramanian Anand , Prakash Chakravarthi
IPC分类号： H04L12/28
CPC分类号： H04L45/54 , H04L45/04 , H04W40/248
摘要： A system and a method for automatically segmenting and merging routing domains within a network. The system includes one or more gateway devices and a plurality of nodes segmented into one or more routing domains. Each of said plurality of nodes maintains a single gateway device from among said plurality of gateway devices as the node's primary gateway at any time. Each of said gateway devices possesses a gateway color attribute. Each of said plurality of nodes maintains a node color attribute value whose value is derived from the value of said gateway color attribute of then node's primary gateway. Each node's routing domain is determined by the node's color attribute value.
摘要翻译：一种用于在网络中自动分段和合并路由域的系统和方法。系统包括一个或多个网关设备和分段到一个或多个路由域中的多个节点。所述多个节点中的每一个在任何时间将所述多个网关设备中的单个网关设备维护为节点的主要网关。所述网关设备中的每一个具有网关颜色属性。所述多个节点中的每一个维护节点颜色属性值，其值是从节点主网关的所述网关颜色属性的值导出的。每个节点的路由域由节点的颜色属性值确定。

6. 发明申请

US20120136478A1 System and Method for Human Interface To A Vending Machine 审中-公开
标题翻译：自动售货机人机接口系统及方法
公开(公告)号：US20120136478A1
公开(公告)日：2012-05-31
申请号：US12956995
申请日：2010-11-30
申请人： Minakshisundaran Anand , Timothy Clark Winter , Anders Mikael Jagd , Vinod Sitaram Mukkamala , Prakash Chakravarthi
发明人： Minakshisundaran Anand , Timothy Clark Winter , Anders Mikael Jagd , Vinod Sitaram Mukkamala , Prakash Chakravarthi
IPC分类号： G06F17/00 , H04W4/00 , G06F15/16
CPC分类号： G07F9/026 , G06Q20/18 , G06Q20/32 , G06Q20/325 , G06Q20/3278 , G06Q20/425
摘要： A system and a method for human interface to a vending machine are provided. The system includes sensing devices located in a vending machine that are capable of detecting user actions such as knocking, thumping or slapping on the vending machine. The system also includes similar sensing devices in interface devices possessed by the user. The signals generated in the sensing devices located in the vending machine and the sensing devices in interface devices are compared and matched according to several criteria in a server computer. Based upon a successful match, vending services are enabled and the user is charged to an account for the products dispensed.
摘要翻译：提供了一种用于与自动售货机的人机接口的系统和方法。该系统包括位于自动售货机中的感测装置，其能够检测用户动作，例如在自动售货机上敲击，敲击或拍打。该系统还包括用户拥有的接口设备中的类似的感测设备。根据服务器计算机中的几个标准，将位于自动售货机中的感测装置中的信号和接口装置中的感测装置产生的信号进行比较和匹配。基于成功的比赛，启用自动售货服务，并将用户收取给分配产品的帐户。

7. 发明授权

US07246143B2 Traced fast fourier transform apparatus and method 有权
标题翻译：追踪快速傅里叶变换装置及方法
公开(公告)号：US07246143B2
公开(公告)日：2007-07-17
申请号：US09980780
申请日：2001-04-09
申请人： Zhong Hu , Prakash Chakravarthi
发明人： Zhong Hu , Prakash Chakravarthi
IPC分类号： G06F17/14
CPC分类号： G06F17/142
摘要： A Fast Fourier Transform (FFT) arrangement for use in those situations in which not all of the outputs are desired is controlled in such a fashion that at least those multiplications (and possibly those additions) are not performed which do not contribute toward the desired outputs. The technique is usable in those situations in which the desired output signals are noncontiguous, or are in noncontiguous bins. The technique includes signal preprocessing in which the indices are adjusted so that the index for a particular stage points to those butterflies of the previous stage which contribute toward its output. The FFT is performed on the indexed data. In one embodiment, a pipelined FFT processor is controlled in a corresponding manner.
摘要翻译：以这样的方式来控制用于不需要所有输出的那些情况下的快速傅立叶变换（FFT）装置，使得至少不对不希望的输出有贡献的那些乘法（和可能的那些加法）。该技术可用于期望的输出信号不连续或处于不连续的箱中的情况。该技术包括信号预处理，其中调整索引，使得特定阶段的索引指向有助于其输出的前一级的那些蝴蝶。对索引数据执行FFT。在一个实施例中，以相应的方式控制流水线FFT处理器。

8. 发明授权

US06744836B2 Apparatus, computer readable medium, transmission medium, and method for synchronizing a received signal based on a maximum likelihood principle using a bisection technique 有权
标题翻译：装置，计算机可读介质，传输介质和用于使用二分法技术基于最大似然原理使接收信号同步的方法
公开(公告)号：US06744836B2
公开(公告)日：2004-06-01
申请号：US09850080
申请日：2001-05-08
申请人： Yigang Fan , Prakash Chakravarthi
发明人： Yigang Fan , Prakash Chakravarthi
IPC分类号： H04L704
CPC分类号： H04L7/041 , H04L7/10
摘要： The present invention relates to burst mode digital communication systems where data transmission is preceded by a preamble for acquisition of carrier and clock synchronization using maximum likelihood (ML) principle. The preamble is sampled and the set of samples obtained is processed using the optimization algorithms of the present invention to provide the ML timing estimate. The optimization algorithms in the present invention consist of three parts. The first part deals with isolating the desired optimal estimate from non-optimal extremes satisfying the same necessary condition, and provides the initial conditions for activating the binary search schemes. The second part performs the binary search for the optimal timing estimate that guarantees the convergence. On the basis of the obtained iterative sequence, the last part constructs a more rapidly convergent sequence to obtain the ML symbol timing estimate. Using the obtained symbol timing estimate, the ML carrier phase estimate can be computed explicitly, and synchronization performed.
摘要翻译：本发明涉及突发模式数字通信系统，其中数据传输之前是使用最大似然（ML）原理获取载波和时钟同步的前同步码。对前导码进行采样，并使用本发明的优化算法来处理所获得的样本集合，以提供ML定时估计。本发明的优化算法由三部分组成。第一部分涉及将期望的最优估计与满足相同必要条件的非最优极值分离，并提供激活二进制搜索方案的初始条件。第二部分执行保证收敛的最佳时序估计的二进制搜索。在获得的迭代序列的基础上，最后一部分构建更快速的收敛序列以获得ML符号定时估计。使用获得的符号定时估计，可以明确计算ML载波相位估计，并进行同步。

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