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1. 发明授权

US08352731B2 Secure decentralized storage system 有权
标题翻译：安全的分散存储系统
公开(公告)号：US08352731B2
公开(公告)日：2013-01-08
申请号：US12425407
申请日：2009-04-17
申请人： Ke Zhou , Dan Feng , Zhongying Niu , Tianming Yang , Qinhua Yan , Dongliang Lei , Wei Yan
发明人： Ke Zhou , Dan Feng , Zhongying Niu , Tianming Yang , Qinhua Yan , Dongliang Lei , Wei Yan
IPC分类号： H04L29/06 , G06F17/30
CPC分类号： H04L67/1097 , H04L63/101
摘要： A secure decentralized storage system provides scalable security by addressing the performance bottleneck of the security manager and the complexity issue of security administration in large-scale storage systems. The storage system includes: an application client for accessing a file system using a plurality of storage devices and transmitting a command to a storage device; a storage device for storing data and access control entries associated to the data, analyzing the command from the client and performing corresponding operations of the command; a metadata server for storing and managing metadata, such as location and length information of data and system configuration; and a security manager for storing and managing global access control entries and policies of the system and performing the access policy and privilege control according to the global access control entries and policies, such as changing the priority and inheritance rule of access control entries, adding and deleting the access control entries.
摘要翻译：安全的分散存储系统通过解决安全管理器的性能瓶颈以及大规模存储系统中安全管理的复杂性问题，提供可扩展的安全性。存储系统包括：应用客户机，用于使用多个存储设备访问文件系统并向存储设备发送命令; 用于存储与数据相关联的数据和访问控制条目的存储装置，分析来自客户机的命令并执行命令的相应操作; 用于存储和管理诸如数据和系统配置的位置和长度信息的元数据的元数据服务器; 以及用于存储和管理系统的全局访问控制条目和策略的安全管理器，并且根据全局访问控制条目和策略执行访问策略和特权控制，诸如改变访问控制条目的优先级和继承规则，添加和删除访问控制条目。

2. 发明申请

US20090282240A1 Secure Decentralized Storage System 有权
标题翻译：安全分散存储系统
公开(公告)号：US20090282240A1
公开(公告)日：2009-11-12
申请号：US12425407
申请日：2009-04-17
申请人： KE ZHOU , Dan Feng , Zhongying Niu , Tianming Yang , Qinhua Yan , Dongliang Lei , Wei Yan
发明人： KE ZHOU , Dan Feng , Zhongying Niu , Tianming Yang , Qinhua Yan , Dongliang Lei , Wei Yan
IPC分类号： H04L29/06 , G06F15/16
CPC分类号： H04L67/1097 , H04L63/101
摘要： A secure decentralized storage system provides scalable security by addressing the performance bottleneck of the security manager and the complexity issue of security administration in large-scale storage systems. The storage system includes: an application client for accessing a file system using a plurality of storage devices and transmitting a command to a storage device; a storage device for storing data and access control entries associated to the data, analyzing the command from the client and performing corresponding operations of the command; a metadata server for storing and managing metadata, such as location and length information of data and system configuration; and a security manager for storing and managing global access control entries and policies of the system and performing the access policy and privilege control according to the global access control entries and policies, such as changing the priority and inheritance rule of access control entries, adding and deleting the access control entries.
摘要翻译：安全的分散存储系统通过解决安全管理器的性能瓶颈以及大规模存储系统中安全管理的复杂性问题，提供可扩展的安全性。存储系统包括：应用客户机，用于使用多个存储设备访问文件系统并向存储设备发送命令; 用于存储与数据相关联的数据和访问控制条目的存储装置，分析来自客户机的命令并执行命令的相应操作; 用于存储和管理诸如数据和系统配置的位置和长度信息的元数据的元数据服务器; 以及用于存储和管理系统的全局访问控制条目和策略的安全管理器，并且根据全局访问控制条目和策略执行访问策略和特权控制，诸如改变访问控制条目的优先级和继承规则，添加和删除访问控制条目。

3. 发明授权

US08645460B2 Method for managing object-based storage system 失效
标题翻译：用于管理基于对象的存储系统的方法
公开(公告)号：US08645460B2
公开(公告)日：2014-02-04
申请号：US13063934
申请日：2008-10-07
申请人： Dan Feng , Liping Pang , Yulai Xie , Fang Wang , Zhongying Niu , Ke Zhou , Juan Wang , Yinliang Yue , Xudong Tu , Shuibing He , Chengtao Lu
发明人： Dan Feng , Liping Pang , Yulai Xie , Fang Wang , Zhongying Niu , Ke Zhou , Juan Wang , Yinliang Yue , Xudong Tu , Shuibing He , Chengtao Lu
IPC分类号： G06F15/16
CPC分类号： G06F3/061 , G06F3/062 , G06F3/0643 , G06F3/067 , G06F2213/0038
摘要： A method for managing an object-based storage system is provided. The object-based storage system includes root objects, partition objects, collection objects, user objects and function objects. The function objects include user function objects and system function objects. The user function objects respond to the client request, so that the existing data-processing tasks requested by the client are moved to the OBSD to be completed, so as to achieve the purposes for saving the network storage bandwidth and improving the security of the stored data, etc. The system function objects execute the system management function, so that the management of the bottom of disks management of the file system and database system is completed by the OBSD. That can be easily realized in automatic data backup, load balancing and other functions in the storage system. The user function objects and system function objects can be customized by the user.
摘要翻译：提供了一种用于管理基于对象的存储系统的方法。基于对象的存储系统包括根对象，分区对象，集合对象，用户对象和功能对象。函数对象包括用户函数对象和系统函数对象。用户功能对象响应客户端请求，使客户端请求的现有数据处理任务移动到OBSD完成，以达到节省网络存储带宽和提高存储的安全性的目的数据等。系统功能对象执行系统管理功能，使OBSD完成文件系统和数据库系统的磁盘管理底部的管理。在存储系统中的自动数据备份，负载平衡等功能中可以轻松实现。用户功能对象和系统功能对象可以由用户自定义。

4. 发明申请

US20110167113A1 METHOD FOR MANAGING OBJECT-BASED STORAGE SYSTEM 失效
标题翻译：用于管理基于对象的存储系统的方法
公开(公告)号：US20110167113A1
公开(公告)日：2011-07-07
申请号：US13063934
申请日：2008-10-07
申请人： Dan Feng , Liping Pang , Yulai Xie , Fang Wang , Zhongying Niu , Ke Zhou , Juan Wang , Yinliang Yue , Xudong Tu , Shuibing He , Chengtao Lu
发明人： Dan Feng , Liping Pang , Yulai Xie , Fang Wang , Zhongying Niu , Ke Zhou , Juan Wang , Yinliang Yue , Xudong Tu , Shuibing He , Chengtao Lu
IPC分类号： G06F15/16
CPC分类号： G06F3/061 , G06F3/062 , G06F3/0643 , G06F3/067 , G06F2213/0038
摘要： A method for managing an object-based storage system is provided. The object-based storage system includes root objects, partition objects, collection objects, user objects and function objects. The function objects include user function objects and system function objects. The user function objects respond to the client request, so that the existing data-processing tasks requested by the client are moved to the OBSD to be completed, so as to achieve the purposes for saving the network storage bandwidth and improving the security of the stored data, etc. The system function objects execute the system management function, so that the management of the bottom of disks management of the file system and database system is completed by the OBSD. That can be easily realized in automatic data backup, load balancing and other functions in the storage system. The user function objects and system function objects can be customized by the user. The management and processing method of the data of the traditional storage system will be changed to improve the performance of the storage system.
摘要翻译：提供了一种用于管理基于对象的存储系统的方法。基于对象的存储系统包括根对象，分区对象，集合对象，用户对象和功能对象。函数对象包括用户函数对象和系统函数对象。用户功能对象响应客户端请求，使客户端请求的现有数据处理任务移动到OBSD完成，以达到节省网络存储带宽和提高存储的安全性的目的数据等。系统功能对象执行系统管理功能，使OBSD完成文件系统和数据库系统的磁盘管理底部的管理。可以轻松实现自动数据备份，负载平衡等存储系统中的功能。用户功能对象和系统功能对象可以由用户自定义。改变传统存储系统数据的管理和处理方法，提高存储系统的性能。

5. 发明授权

US07571401B1 Calculating distortion summaries for circuit distortion analysis 有权
标题翻译：计算电路失真分析的失真概要
公开(公告)号：US07571401B1
公开(公告)日：2009-08-04
申请号：US11640137
申请日：2006-12-14
申请人： Fangyi Rao , Dan Feng
发明人： Fangyi Rao , Dan Feng
IPC分类号： G06F17/50 , G06F9/45
CPC分类号： G06F17/5063 , G06F17/5036
摘要： Methods for analyzing circuit distortion based on contributions from separate circuit elements are presented. Local approximations that do not require high-order derivatives of device models are developed near an operating point for calculating distortion summaries including compression summaries and second-order intermodulation (IM2) distortion summaries.
摘要翻译：提出了基于单独电路元件贡献分析电路失真的方法。不需要设备模型的高阶导数的局部近似值是在运算点附近开发的，用于计算包括压缩摘要和二阶互调（IM2）失真摘要的失真摘要。

6. 发明申请

US20070136045A1 Calculating intermodulation products and intercept points for circuit distortion analysis 有权
标题翻译：计算电路失真分析的互调产物和截距点
公开(公告)号：US20070136045A1
公开(公告)日：2007-06-14
申请号：US11303049
申请日：2005-12-14
申请人： Fangyi Rao , Dan Feng
发明人： Fangyi Rao , Dan Feng
IPC分类号： G06F17/50
CPC分类号： G06F17/5036
摘要： A pertubative approach based on the Born approximation resolves weakly nonlinear circuit models without requiring explicit high-order device derivatives. Convergence properties and the relation to Volterra series are discussed. According to the disclosed methods, second and third order intermodulation products (IM2, IM3) and intercept points (IP2, IP3) can be calculated by second and third order Born approximations under weakly nonlinear conditions. A diagrammatic representation of nonlinear interactions is presented. Using this diagrammatic technique, both Volterra series and Born approximations can be constructed in a systematic way. The method is generalized to calculate other high-order nonlinear effects such as IMn (nth order intermodulation product) and IPn (nth order intermodulation intercept point). In general, the equations are developed in harmonic form and can be implemented in both time and frequency domains for analog and RF circuits.
摘要翻译：基于Born近似的一种运动方法解决了弱非线性电路模型，而不需要明确的高阶器件衍生。讨论了收敛性和与Volterra系列的关系。根据所公开的方法，可以在弱非线性条件下通过二阶和三阶Born近似来计算二阶互调产物（IM2，IM3）和截取点（IP2，IP3）。介绍了非线性相互作用的图解表示。使用这种图解技术，可以系统地构建Volterra系列和Born近似。该方法被广义化以计算其他高阶非线性效应，如IMn（n阶互调乘积）和IPn（n阶互调截取点）。通常，等式以谐波形式开发，并且可以在时域和频域上实现模拟和RF电路。

7. 发明授权

US07761279B1 Synchronized transient-envelope and event-driven simulation of electronic circuits 有权
标题翻译：电子电路的同步瞬态包络和事件驱动仿真
公开(公告)号：US07761279B1
公开(公告)日：2010-07-20
申请号：US11941899
申请日：2007-11-16
申请人： Qian Cai , Dan Feng
发明人： Qian Cai , Dan Feng
IPC分类号： G06G7/62 , G06F17/50
CPC分类号： G06F17/5036
摘要： In one embodiment of the invention, a method of simulating a circuit is disclosed including simulating an analog component of the circuit over a first simulation time period with a first envelope simulation; adaptively switching from simulating the analog component with the first envelope simulation to simulating the analog component with a transient simulation over a second simulation time period; and adaptively switching from simulating the analog component with the transient simulation to simulating the analog component with a second envelope simulation over a third simulation time period. The adaptive switching from the first envelope simulation to the transient simulation may be in response to the envelope simulation accuracy falling below a predetermined level of accuracy in comparison with a transient simulation or in response to the second simulation time period including expected digital transitions where one or more digital events may occur to change the analog input signals to the analog component.
摘要翻译：在本发明的一个实施例中，公开了一种模拟电路的方法，其包括在第一模拟时间段内利用第一包络模拟来模拟所述电路的模拟分量; 自适应地切换模拟模拟组件与第一包络模拟，以在第二模拟时间段内用瞬态模拟模拟模拟组件; 并通过第三个模拟时间段，利用第二个包络模拟，自适应地从模拟模拟模拟瞬态仿真模拟模拟模拟组件。从第一包络线模拟到瞬态模拟的自适应切换可以响应于与瞬态模拟相比，包络模拟精度低于预定精度水平，或响应于第二模拟时间段，包括期望的数字转换，其中一个或可能会发生更多的数字事件，以将模拟输入信号改变为模拟组件。

8. 发明授权

US08195440B2 Method and apparatus for simulating quasi-periodic circuit operating conditions using a mixed frequency/time algorithm 有权
标题翻译：使用混合频率/时间算法模拟准周期性电路工作条件的方法和装置
公开(公告)号：US08195440B2
公开(公告)日：2012-06-05
申请号：US12372608
申请日：2009-02-17
申请人： Dan Feng , Joel R. Phillips , Kenneth Kundert
发明人： Dan Feng , Joel R. Phillips , Kenneth Kundert
IPC分类号： G06F17/50
CPC分类号： G06F17/5036
摘要： Described is a process for performing an improved mixed frequency-time algorithm to simulate responses of a circuit that receives a periodic sample signal and at least one information signal. The process selects a set of evenly spaced distinct time points and a set of reference time points. Each of the reference points is associated with a distinct time point, and a reference time point is a signal period away from its respective distinct time point. The process finds a first set of relationships between the values at the distinct time points and the values the reference time points. The process also finds a second set of relationships between the values at the distinct time points and the values at the reference time points. The process then combines the first and second sets of relationships to establish a system of nonlinear equations in terms of the values at the distinct time points only. By solving the system of nonlinear equations, the process finds simulated responses of the circuit in time domain. The process then converts the simulated circuit responses from time domain to frequency domain.
摘要翻译：描述了一种用于执行改进的混合频率 - 时间算法来模拟接收周期性采样信号的电路和至少一个信息信号的响应的过程。该过程选择一组均匀间隔不同的时间点和一组参考时间点。每个参考点与不同的时间点相关联，并且参考时间点是远离其各自的不同时间点的信号周期。该过程在不同时间点的值和参考时间点之间找到第一组关系。该过程还在不同时间点的值和参考时间点的值之间找到第二组关系。然后，该过程组合第一组和第二组关系，以仅在不同时间点处建立非线性方程组的系数。通过求解非线性方程组，该过程在时域中发现电路的仿真响应。然后，该过程将模拟电路响应从时域转换到频域。

9. 发明授权

US07774176B2 Calculating intermodulation products and intercept points for circuit distortion analysis 有权
标题翻译：计算电路失真分析的互调产物和截距点
公开(公告)号：US07774176B2
公开(公告)日：2010-08-10
申请号：US11303049
申请日：2005-12-14
申请人： Fangyi Rao , Dan Feng
发明人： Fangyi Rao , Dan Feng
IPC分类号： G06F17/50
CPC分类号： G06F17/5036
摘要： A pertubative approach based on the Born approximation resolves weakly nonlinear circuit models without requiring explicit high-order device derivatives. Convergence properties and the relation to Volterra series are discussed. According to the disclosed methods, second and third order intermodulation products (IM2, IM3) and intercept points (IP2, IP3) can be calculated by second and third order Born approximations under weakly nonlinear conditions. A diagrammatic representation of nonlinear interactions is presented. Using this diagrammatic technique, both Volterra series and Born approximations can be constructed in a systematic way. The method is generalized to calculate other high-order nonlinear effects such as IMn (nth order intermodulation product) and IPn (nth order intermodulation intercept point). In general, the equations are developed in harmonic form and can be implemented in both time and frequency domains for analog and RF circuits.
摘要翻译：基于Born近似的一种运动方法解决了弱非线性电路模型，而不需要明确的高阶器件衍生。讨论了收敛性和与Volterra系列的关系。根据所公开的方法，可以在弱非线性条件下通过二阶和三阶Born近似来计算二阶互调产物（IM2，IM3）和截取点（IP2，IP3）。介绍了非线性相互作用的图解表示。使用这种图解技术，可以系统地构建Volterra系列和Born近似。该方法被广泛用于计算其他高阶非线性效应，如IMn（n阶互调乘积）和IPn（n阶互调截取点）。通常，等式以谐波形式开发，并且可以在时域和频域上实现模拟和RF电路。

10. 发明授权

US08762122B1 Methods for synchronized transient-envelope and event-driven simulation of electronic circuits 有权
标题翻译：电子电路同步瞬态包络和事件驱动仿真的方法
公开(公告)号：US08762122B1
公开(公告)日：2014-06-24
申请号：US12832872
申请日：2010-07-08
申请人： Qian Cai , Dan Feng
发明人： Qian Cai , Dan Feng
IPC分类号： G06F17/50 , G06G7/62
CPC分类号： G06F17/5036
摘要： In one embodiment of the invention, a method of simulating a circuit is disclosed including simulating an analog component of the circuit over a first simulation time period with a first envelope simulation; adaptively switching from simulating the analog component with the first envelope simulation to simulating the analog component with a transient simulation over a second simulation time period; and adaptively switching from simulating the analog component with the transient simulation to simulating the analog component with a second envelope simulation over a third simulation time period. The adaptive switching from the first envelope simulation to the transient simulation may be in response to the envelope simulation accuracy falling below a predetermined level of accuracy in comparison with a transient simulation or in response to the second simulation time period including expected digital transitions where one or more digital events may occur to change the analog input signals to the analog component.
摘要翻译：在本发明的一个实施例中，公开了一种模拟电路的方法，其包括在第一模拟时间段内利用第一包络模拟来模拟所述电路的模拟分量; 自适应地切换模拟模拟组件与第一包络模拟，以在第二模拟时间段内用瞬态模拟模拟模拟组件; 并通过第三个模拟时间段，利用第二个包络模拟，自适应地从模拟模拟模拟瞬态仿真模拟模拟模拟组件。从第一包络线模拟到瞬态模拟的自适应切换可以响应于与瞬态模拟相比，包络模拟精度低于预定精度水平，或响应于第二模拟时间段包括期望的数字转换，其中一个或可能会发生更多的数字事件，以将模拟输入信号改变为模拟组件。

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