Process of oxidizing cyclohexane
    41.
    发明授权
    Process of oxidizing cyclohexane 有权
    氧化环己烷的方法

    公开(公告)号:US08940939B2

    公开(公告)日:2015-01-27

    申请号:US14115754

    申请日:2012-05-02

    Abstract: A process of oxidizing cyclohexane, comprising feeding cyclohexane, an aqueous hydrogen peroxide solution and optionally an organic solvent into a reaction zone through a feed inlet thereof under the oxidation reaction conditions for contact, and providing all or most of the oxidation product at the reaction zone bottom, wherein a part or all of the packing in the reaction zone is a titanium silicate molecular sieve-containing catalyst. The process of oxidizing cyclohexane according to the present invention carries out the oxidation in the reaction zone, which, firstly, utilizes the latent heat from reaction sufficiently so as to achieve energy-saving; secondly, increases the yield of target product and the availability of oxidizer; and thirdly, allows the separation of the oxidation product from the raw material cyclohexane as the reaction proceeds, such that the cost for subsequent separations can be saved.

    Abstract translation: 一种氧化环己烷的方法,包括在用于接触的氧化反应条件下,将环己烷,过氧化氢水溶液和任选的有机溶剂通过其进料入口进入反应区,并在反应区提供全部或大部分氧化产物 底部,其中反应区中的一部分或全部填料是含硅酸钛分子筛的催化剂。 本发明环氧化合物的处理在反应区进行氧化,首先利用充分的反应潜热,达到节能; 其次,提高目标产品的产量和氧化剂的可用性; 第三,随着反应进行,允许氧化产物与原料环己烷分离,从而可以节省后续分离的成本。

    Image-based CAPTCHA exploiting context in object recognition
    42.
    发明授权
    Image-based CAPTCHA exploiting context in object recognition 有权
    基于图像的CAPTCHA利用对象识别中的上下文

    公开(公告)号:US08483518B2

    公开(公告)日:2013-07-09

    申请号:US12709311

    申请日:2010-02-19

    Abstract: Techniques for an image-based CAPTCHA for object recognition are described. The disclosure describes adding images to a database by collecting images by querying descriptive keywords to an image search engine or crawling images from the Internet.The disclosure describes generating the image-based CAPTCHA. The image is retrieved from the database, along with objects having significant values. An object is cropped from its image. The portion on the image where the object has been cropped is filled with image inpainting. The process obtains other objects from the database. The object is mixed among the other objects to form a set of candidate objects. A user is asked to select “the object” from the set of candidate objects that fits or matches the image. The image-based CAPTCHA evaluates whether a response, the selection, is from a human or a bot.

    Abstract translation: 描述了用于对象识别的基于图像的CAPTCHA的技术。 本公开内容描述了通过向图像搜索引擎查询描述性关键词或从因特网爬行图像来收集图像来向图像数据库添加图像。 该公开内容描述了生成基于图像的CAPTCHA。 从数据库中检索图像以及具有重要值的对象。 一个物体从其图像中裁剪出来。 被裁剪对象的图像部分填充有图像修复。 该进程从数据库获取其他对象。 对象在其他对象之间进行混合以形成一组候选对象。 要求用户从适合或匹配图像的候选对象集中选择“对象”。 基于图像的CAPTCHA评估响应,选择是来自人还是机器人。

    JPEG2000 syntax-compliant encryption with full scalability
    48.
    发明授权
    JPEG2000 syntax-compliant encryption with full scalability 有权
    具有完全可扩展性的JPEG2000语法兼容加密

    公开(公告)号:US08081755B2

    公开(公告)日:2011-12-20

    申请号:US11419468

    申请日:2006-05-19

    CPC classification number: H04K1/00 H04L9/0637

    Abstract: A method and system is provided for encrypting an image compressed with a JPEG2000-based compression with minimal overhead so that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression and can be scaled without decrypting. The encryption system generates, for each independent encryption segment of a codestream for an image, a unique initialization vector from a global initialization vector in such a way that the initialization vectors can be generated during decryption from the global initialization vector, even after truncation. The encryption system encrypts each independent encryption segment using its unique initialization vector. The encryption system ensures that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression both as originally generated and as truncated by an encryption-unaware device.

    Abstract translation: 提供了一种方法和系统,用于以最小的开销加密用基于JPEG2000的压缩压缩的图像,使得加密的码流符合基于JPEG2000的压缩的语法,并且可以在不进行解密的情况下进行缩放。 加密系统对于图像的码流的每个独立加密段产生来自全局初始化向量的唯一初始化向量,使得即使在截断之后也可以在全局初始化向量的解密期间生成初始化向量。 加密系统使用其唯一的初始化向量来加密每个独立的加密段。 加密系统确保加密的码流符合基于JPEG2000的压缩的语法,原始生成并被加密不知情的设备截断。

    Peer-to-peer networks with protections
    49.
    发明授权
    Peer-to-peer networks with protections 失效
    具有保护的对等网络

    公开(公告)号:US07987368B2

    公开(公告)日:2011-07-26

    申请号:US11381951

    申请日:2006-05-05

    Abstract: In a peer-to-peer environment, copyrights and users' privacies can be protected by a tracking mechanism. In described implementations, tracking mechanisms can use certificates that are produced using random numbers to protect the privacy of users and/or certificates that are produced responsive to at least one hardware identifier to enable uploader to be identified to protect copyrights.

    Abstract translation: 在对等环境中,版权和用户的隐私可以通过跟踪机制来保护。 在所描述的实现中,跟踪机制可以使用使用随机数产生的证书来保护响应于至少一个硬件标识符产生的用户和/或证书的隐私,以使上载者被识别以保护版权。

    Locally interative encryption generating compliant ciphertext for general syntax specifications
    50.
    发明授权
    Locally interative encryption generating compliant ciphertext for general syntax specifications 有权
    本地迭代加密生成符合一般语法规范的密文

    公开(公告)号:US07769168B2

    公开(公告)日:2010-08-03

    申请号:US11095048

    申请日:2005-03-31

    Abstract: A fast and secure syntax compliant encryption schema, “locally iterative encryption,” can produce compliant ciphertext for a general syntax specification. In one implementation, an engine partitions a data stream into blocks, and encrypts each block iteratively until syntax compliance conditions are met. A system using the schema can utilize either stream ciphers or block ciphers in different modes. Locally iterative encryption methods are fast and remain at approximately the same speed even as the length of the data stream to be encrypted increases. Besides providing superior processing speed, the locally iterative encryption schema is also more robust to errors in the resulting ciphertext and in the resulting decrypted plaintext than conventional syntax compliant encryption techniques. Locally iterative encryption is secure as long as an underlying encryption cipher selected for use in the schema is secure.

    Abstract translation: 快速和安全的语法兼容加密模式“本地迭代加密”可以为通用语法规范提供符合规定的密文。 在一个实现中,引擎将数据流分割成块,并且迭代地对每个块进行加密,直到满足语法符合条件。 使用该模式的系统可以利用不同模式的流密码或块密码。 即使要加密的数据流的长度增加,本地迭代加密方法也是快速且保持大致相同的速度。 除了提供优越的处理速度之外,本地迭代加密模式对于所生成的密文中的错误以及生成的解密明文也比传统的符合法规的加密技术更加鲁棒。 只要选择用于模式的底层加密密码是安全的,本地迭代加密就是安全的。

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