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1. 发明授权

US08623791B2 Copolymer and preparation method and application thereof 有权
标题翻译：共聚物及其制备方法及应用
公开(公告)号：US08623791B2
公开(公告)日：2014-01-07
申请号：US13244102
申请日：2011-09-23
申请人： Xiaohua Yang , Lin Wang , Jiafen Li , Xiaolin Qian , Xianguang Wang , Sheng Li , Liwei Ren , Changming Su , Zhifa Wang , Guichuan Liu , Bingzhong Shi
发明人： Xiaohua Yang , Lin Wang , Jiafen Li , Xiaolin Qian , Xianguang Wang , Sheng Li , Liwei Ren , Changming Su , Zhifa Wang , Guichuan Liu , Bingzhong Shi
IPC分类号： C09K8/12 , C09K8/32 , C09K8/588
CPC分类号： C08F230/04 , C09K8/12
摘要： A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.
摘要翻译：公开了共聚物及其制备方法和应用。共聚物是由丙烯酰胺，丙烯酸，链烯基磺酸酯，2-丙烯酰氨基 - 十二烷基磺酸酯，对苯乙烯磺酸酯或异戊二烯磺酸酯等单体组成的无规共聚物。本发明的共聚物可用作流体损失添加剂，具有良好的流体损失性能，不会使钻井液在200℃的高温和饱和盐水的高盐条件下变稠。根据美国石油学会标准试验在室温下测量，在200℃的高温下老化和轧制16小时后，中压流体损失具有良好的耐高温和耐盐性能保留。

2. 发明申请

US20120077718A1 COPOLYMER AND PREPARATION METHOD AND APPLICATION THEREOF 有权
标题翻译：共聚物及其制备方法及应用
公开(公告)号：US20120077718A1
公开(公告)日：2012-03-29
申请号：US13244102
申请日：2011-09-23
申请人： Xiaohua YANG , Lin Wang , Jiafen Li , Xiaolin Qian , Xianguang Wang , Sheng Li , Liwei Ren , Changming Su , Zhifa Wang , Guichuan Liu , Bingzhong Shi
发明人： Xiaohua YANG , Lin Wang , Jiafen Li , Xiaolin Qian , Xianguang Wang , Sheng Li , Liwei Ren , Changming Su , Zhifa Wang , Guichuan Liu , Bingzhong Shi
IPC分类号： C09K8/12 , C08F230/04
CPC分类号： C08F230/04 , C09K8/12
摘要： A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.
摘要翻译：公开了共聚物及其制备方法和应用。共聚物是由丙烯酰胺，丙烯酸，链烯基磺酸酯，2-丙烯酰氨基 - 十二烷基磺酸酯，对苯乙烯磺酸酯或异戊二烯磺酸酯等单体组成的无规共聚物。本发明的共聚物可用作流体损失添加剂，具有良好的流体损失性能，不会使钻井液在200℃的高温和饱和盐水的高盐条件下变稠。根据美国石油学会标准试验在室温下测量，在200℃的高温下老化和轧制16小时后，中压流体损失具有良好的耐高温和耐盐性能保留。

3. 发明授权

US09342697B1 Scalable security policy architecture for data leakage prevention 有权
标题翻译：可扩展的安全策略架构，用于数据泄露预防
公开(公告)号：US09342697B1
公开(公告)日：2016-05-17
申请号：US12421217
申请日：2009-04-09
申请人： Liwei Ren , Dehua Tan , Yingqiang Lin
发明人： Liwei Ren , Dehua Tan , Yingqiang Lin
IPC分类号： G06F21/60 , H04L29/06
CPC分类号： G06F21/60 , G06F21/554 , G06F21/606 , H04L63/20
摘要： One embodiment relates to an apparatus for creating and managing security policies for data leakage prevention. The apparatus includes a database which stores three layers of objects comprising digital assets, content templates, and security policies, and a user interface configured to access said database so as to provide for input and editing of said three layers of objects. The security policies may include at least a target element, an action element, and a condition element. A content template may be used to form the condition element. Content templates may include compliance templates which are configured to satisfy specific regulatory requirements and other templates to protect specified types of information. Other embodiments, aspects and features are also disclosed.
摘要翻译：一个实施例涉及用于创建和管理用于防止数据泄露的安全策略的装置。该装置包括存储包括数字资产，内容模板和安全策略的三层对象的数据库，以及被配置为访问所述数据库以便提供对所述三层对象的输入和编辑的用户界面。安全策略可以至少包括目标元素，动作元素和条件元素。可以使用内容模板来形成条件元素。内容模板可能包括配置为满足特定监管要求的合规模板和其他模板以保护指定类型的信息。还公开了其它实施例，方面和特征。

4. 发明授权

US07860853B2 Document matching engine using asymmetric signature generation 有权
标题翻译：使用不对称签名生成的文档匹配引擎
公开(公告)号：US07860853B2
公开(公告)日：2010-12-28
申请号：US12069659
申请日：2008-02-11
申请人： Liwei Ren , Shu Huang , Fei Huang , Yingqiang Lin
发明人： Liwei Ren , Shu Huang , Fei Huang , Yingqiang Lin
IPC分类号： G06F7/00
CPC分类号： G06F17/30943 , G06F17/30722 , G06F17/30864 , G06Q50/22
摘要： An automated method of matching an input document to a set of documents from a document repository. A signature database is stored, the signature database including a document identifier and signatures generated by a first signature generator for each of the set of documents. The input document is received and signatures are generated for the input document using a second signature generator, and the signature database is searched using the signatures generated for the input document. The first and second signature generators are configured such that different numbers of signatures are generated for a same document. Other embodiments, aspects and features are also disclosed.
摘要翻译：将输入文档与文档库中的一组文档进行匹配的自动化方法。存储签名数据库，所述签名数据库包括文档标识符和由所述一组文档中的每一个由第一签名生成器生成的签名。接收输入文档并使用第二签名生成器为输入文档生成签名，并且使用为输入文档生成的签名来搜索签名数据库。第一和第二签名生成器被配置为使得针对同一文档生成不同数量的签名。还公开了其它实施例，方面和特征。

5. 发明授权

US07392260B2 Code alignment of binary files 有权
标题翻译：二进制文件的代码对齐
公开(公告)号：US07392260B2
公开(公告)日：2008-06-24
申请号：US11314405
申请日：2005-12-21
申请人： Liwei Ren , Jinsheng Gu , Luosheng Peng
发明人： Liwei Ren , Jinsheng Gu , Luosheng Peng
IPC分类号： G06F17/00 , G06F17/30
CPC分类号： G06F8/658 , Y10S707/99937 , Y10S707/99942
摘要： A file differencing and updating system is provided that includes a file differencing component and a file updating component. The file differencing component, or file differencing engine, generates a difference file in a first processor-based or computer system from an original or old version and a new version of an electronic file. Generation of the difference files includes processing to reduce the number of file changes introduced by code block swaps. The processing uses an alignment algorithm, which includes a sorting algorithm, to align the code blocks of the original version in the same order as those of the new version, thereby eliminating the increase in the number of byte-level file differences due to code block swaps. During the alignment operations, the block movements are dynamically recorded at a minimum cost level and encoded for transmission to the file updating component for use in code recovery.
摘要翻译：提供了一种文件差异和更新系统，其中包括文件差异组件和文件更新组件。文件差分组件或文件差分引擎在第一基于处理器或计算机系统中的原始或旧版本和新版本的电子文件中生成差异文件。差异文件的生成包括减少代码块交换引入的文件更改次数的处理。该处理使用对齐算法，其包括排序算法，以与新版本相同的顺序对准原始版本的代码块，从而消除由于代码块而导致的字节级文件差异数量的增加互换在对准操作期间，块运动以最低成本水平动态记录，并被编码以传送到文件更新组件以用于代码恢复。

6. 发明申请

US20060272024A1 Graphical user interface based sensitive information and internal information vulnerability management system 有权
标题翻译：基于图形用户界面的敏感信息和内部信息漏洞管理系统
公开(公告)号：US20060272024A1
公开(公告)日：2006-11-30
申请号：US11431799
申请日：2006-05-09
申请人： Shu Huang , Fei Huang , Liwei Ren , Aiguo Dong
发明人： Shu Huang , Fei Huang , Liwei Ren , Aiguo Dong
IPC分类号： H04N7/16
CPC分类号： H04L67/22 , G06F21/55 , G06F21/577 , H04L63/105
摘要： A system and method provides a graphical user interface (GUI) for users to monitor and manage sensitive information within an enterprise network. The GUI can provide users with information, such as the presence of input/output devices (I/O device), the location of documents containing sensitive information (sensitive documents), and the status of local security policy. The GUI can also provide users with real-time information, such as the occurrence of local security policy violations, the life-cycle of sensitive documents, and the sensitive information dynamic flow within the enterprise network.
摘要翻译：系统和方法提供图形用户界面（GUI），用于用户监控和管理企业网络中的敏感信息。 GUI可以向用户提供诸如输入/输出设备（I / O设备）的存在，包含敏感信息的文档的位置（敏感文档）以及本地安全策略的状态等信息。 GUI还可以为用户提供企业网络内的实时信息，如本地安全策略违规的发生，敏感文档的生命周期和敏感信息动态流。

7. 发明授权

US09882768B1 Methods and apparatus for file synchronization over a computer network 有权
公开(公告)号：US09882768B1
公开(公告)日：2018-01-30
申请号：US13419271
申请日：2012-03-13
申请人： Jian-Ying Chen , Liwei Ren
发明人： Jian-Ying Chen , Liwei Ren
IPC分类号： G06F17/30 , H04L29/08
CPC分类号： H04L29/0854 , H04L67/06 , H04L67/1095
摘要： A system includes a sender computer and a recipient computer. The sender computer starts the chunking process by splitting a target file into chunks and providing signatures of the chunks of the target file to the recipient computer. After and in response to receiving the signatures of the chunks of the target file, the recipient computer splits the reference file into chunks, generates signatures of the chunks of the reference file, and identifies chunks that are common between the target file and the reference file. The recipient computer combines adjacent common chunks into larger chunks and creates, for example, MD5 signatures accordingly. The sender computer receives from the recipient computer information on chunks common between the target file and the reference file and provides a sequence of edit operations to the recipient computer to allow the recipient computer to reconstruct the target file.

8. 发明授权

US08782082B1 Methods and apparatus for multiple-keyword matching 有权
标题翻译：多关键词匹配的方法和装置
公开(公告)号：US08782082B1
公开(公告)日：2014-07-15
申请号：US13290734
申请日：2011-11-07
申请人： Qiuer Xu , Liwei Ren
发明人： Qiuer Xu , Liwei Ren
IPC分类号： G06F17/30
CPC分类号： G06F17/30625 , G06F17/30622 , G06F17/30663
摘要： One embodiment relates to a computer-implemented method for multiple-keyword matching performed using a computer including at least a processor, data storage, and computer-readable instructions. A keyword set and a text input to be searched are obtained. The keyword set is processed to create a reverse trie. A search procedure which starts from the end of the text is then applied using the reverse trie to find keyword occurrences in the text input. Other embodiments, aspects, and features are also disclosed.
摘要翻译：一个实施例涉及使用包括至少处理器，数据存储器和计算机可读指令的计算机执行的用于多关键字匹配的计算机实现的方法。获得要搜索的关键字集和文本输入。处理关键字集以创建反向特技。然后从文本结尾开始的搜索过程将使用反向特里来应用，以在文本输入中查找关键字出现。还公开了其它实施例，方面和特征。

9. 发明授权

US08490203B1 Fingerprinting based entity extraction 有权
标题翻译：基于指纹的实体提取
公开(公告)号：US08490203B1
公开(公告)日：2013-07-16
申请号：US13083800
申请日：2011-04-11
申请人： Liwei Ren , Shu Huang
发明人： Liwei Ren , Shu Huang
IPC分类号： G06F21/00
CPC分类号： G06F21/55
摘要： A system (and a method) is disclosed for fingerprinting based entity extraction using a rolling hash technique. The system is configured to receive an input stream comprising characters, the input stream of a predetermined length, and a hash table having plurality of indexed entries. The system defines a fixed window length. The system isolates, through the fixed window length, a set of a plurality of characters of the input stream. The system generates a hash key. The hash key is used to index into the hash table. The system compares the isolated set of plurality of characters of the input stream with the entry corresponding to the index into the hash table to determine whether there is an exact match with the entry. The system slides the fixed window length one character to isolate another set of a plurality of characters of the input stream in response to no exact match from the comparison. Alternatively, the system stores the input stream in response to an exact match from the comparison.
摘要翻译：公开了一种使用滚动散列技术进行基于指纹的实体提取的系统（和方法）。该系统被配置为接收包括字符，预定长度的输入流和具有多个索引条目的散列表的输入流。系统定义了一个固定的窗口长度。该系统通过固定窗口长度分离输入流的多个字符的集合。系统生成哈希密钥。哈希密钥用于索引到哈希表。系统将输入流的孤立的多个字符的集合与与索引对应的条目与散列表进行比较，以确定是否存在与条目的精确匹配。响应于来自比较的精确匹配，系统将固定窗口长度滑动一个字符以隔离输入流的另一组多个字符。或者，系统响应于来自比较的精确匹配来存储输入流。

10. 发明申请

US20060253445A1 Cascading security architecture 有权
标题翻译：级联安全架构
公开(公告)号：US20060253445A1
公开(公告)日：2006-11-09
申请号：US11413754
申请日：2006-04-27
申请人： Fei Huang , Shu Huang , Liwei Ren
发明人： Fei Huang , Shu Huang , Liwei Ren
IPC分类号： G06F17/30
CPC分类号： G06F17/30011 , G06F21/554
摘要： A system and a method are disclosed for sensitive document management. The system includes one or more agents, a behavior analysis engine, a local policy engine, and a local matching service. The method identifies whether a document is sensitive, identifies behaviors applied to the document, determines whether the document contains sensitive information and determines whether to allow the identified behavior to continue based on security policies.
摘要翻译：公开了一种用于敏感文件管理的系统和方法。系统包括一个或多个代理，行为分析引擎，本地策略引擎和本地匹配服务。该方法识别文档是否敏感，识别应用于文档的行为，确定文档是否包含敏感信息，并确定是否允许基于安全策略继续识别的行为。

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