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    • 92. 发明授权
    • Method and apparatus for indexing structured documents with rich data types
    • 用于索引具有丰富数据类型的结构化文档的方法和设备
    • US06519597B1
    • 2003-02-11
    • US09324499
    • 1999-06-02
    • Josephine M. ChengJyh-Herng ChowGene Y. C. FuhJian Xu
    • Josephine M. ChengJyh-Herng ChowGene Y. C. FuhJian Xu
    • G06F1730
    • G06F17/30595Y10S707/99943
    • An extender for a computer-implemented relational database system is disclosed for storing, querying, and retrieving structured documents. The extender provides a new abstract data type and includes a plurality of user defined functions for storing, querying, and retrieving structured documents internally, as character-based large objects (CLOB), or externally, in flat files or URLs, for example. A method and apparatus using an extender having a “conditional select” functionality is further disclosed for querying structured documents. The “conditional select” functionality is based on user defined functions residing within the extender being applied to a projection in a structured query in the database system. A method and apparatus using an extender having a set of user defined functions is further disclosed for creating one or more indexes for structured documents stored in the relational database system. The method uses the set of functions to create the indexes and uses already created B+ tree index structures implemented in the database system to support the indexes. A method and apparatus using an extender is further disclosed for creating and supporting structure indexes. The method includes a tag counting system for indexing structured documents and for implementing the structure indexes within the relational database.
    • 公开了一种用于计算机实现的关系数据库系统的扩展器,用于存储,查询和检索结构化文档。 扩展器提供新的抽象数据类型,并且包括用于在内部存储,查询和检索结构化文档的多个用户定义的功能,例如作为基于字符的大对象(CLOB),或外部地在平面文件或URL中。 进一步公开了使用具有“条件选择”功能的扩展器的方法和装置,用于查询结构化文档。 “条件选择”功能基于驻留在扩展器内的用户定义的功能,其被应用于数据库系统中的结构化查询中的投影。进一步公开了使用具有一组用户定义的功能的扩展器的方法和装置,用于创建一个 或者用于存储在关系数据库系统中的结构化文档的更多索引。 该方法使用一组函数来创建索引,并使用在数据库系统中实现的已创建的B +树索引结构来支持索引。进一步​​公开了一种使用扩展器的方法和装置,用于创建和支持结构索引。 该方法包括用于对结构化文档进行索引并用于实现关系数据库内的结构索引的标签计数系统。
    • 94. 发明授权
    • Method for relating indexing information associated with at least two
indexing schemes to facilitate the play-back of user-specified digital
video data and a video client incorporating the same
    • 用于将与至少两个索引方案相关联的索引信息相关联以便于播放用户指定的数字视频数据的方法和包含其的视频客户端
    • US5953073A
    • 1999-09-14
    • US688114
    • 1996-07-29
    • Gerald E. KozinaJian Xu
    • Gerald E. KozinaJian Xu
    • H04N5/46
    • H04N21/8456G06F17/30784G06F17/30858G11B27/329H04N21/4325H04N21/858
    • The present invention is directed to a method for relating indexing information associated with at least two indexing schemes to facilitate the play-back of user-specified digital video data. The method includes the steps of scanning a stream of digital video data for indexing information related to at least two indexing schemes prior to being stored in a video server, and generating a mapping table in order to convert indexing information associated with one of the at least two indexing schemes to corresponding indexing information associated with another one of the at least two indexing schemes. The indexing information identifies discrete portions of said stream of digital video data so that those portions can be accessed at a later time. The mapping table may be stored in a database. A video client is also provided according to the present invention which relates indexing information associated with at least two indexing schemes to facilitate the play-back of user-specified digital video data on a video display. The video client includes a loader and a video player. The loader scans the digital video data for indexing information and loads the digital video data into a video server. The loader includes a mapper which generates a mapping table relating indexing information associated with at least two indexing schemes. The video player controls the play-back of the digital video data using the mapping table which is retrieved by the video player when digital video data is to be displayed. The video server sends the digital video data in response to the control exercised by the player to the video display for display thereon.
    • 本发明涉及一种用于使与至少两个索引方案相关联的索引信息相关联的方法,以便于播放用户指定的数字视频数据。 该方法包括以下步骤:在存储在视频服务器中之前扫描数字视频数据流,用于索引与至少两个索引方案相关的信息,以及生成映射表,以便转换与至少至少一个索引相关联的索引信息 两个索引方案用于与所述至少两个索引方案中的另一个相关联的相应索引信息。 索引信息识别所述数字视频数据流的离散部分,使得可以在稍后时间访问这些部分。 映射表可以存储在数据库中。 根据本发明还提供了一种视频客户端,其涉及与至少两个索引方案相关联的索引信息,以便于在视频显示器上播放用户指定的数字视频数据。 视频客户端包括一个装载机和一个视频播放器。 加载器扫描数字视频数据以索引信息,并将数字视频数据加载到视频服务器中。 加载器包括映射器,其生成与至少两个索引方案相关联的索引信息的映射表。 视频播放器使用当要显示数字视频数据时由视频播放器检索的映射表来控制数字视频数据的播放。 视频服务器响应于播放器执行的控制将数字视频数据发送到视频显示器以在其上显示。
    • 95. 发明授权
    • Cutting head for a water jet cutting assembly
    • 水刀切割组件的切割头
    • US5851139A
    • 1998-12-22
    • US794815
    • 1997-02-04
    • Jian Xu
    • Jian Xu
    • B05B7/14B24C1/04B24C5/04B05B7/04
    • B24C1/045B24C5/04B05B7/149
    • An improved cutting head for a water jet cutting assembly utilizing water or other liquid medium at ultra high pressure, with the cutting head including an assembly with an elongated body having a central bore along its axis and including a delivery nozzle at the distal end of the assembly. Alignment of the components is maintained by incorporating a process of manufacture which utilizes the formation of a single bore extending through the body so as to both form and maintain axial alignment of the components. The arrangement is further characterized by having mating surfaces which are free of gaskets or other packing material, thereby establishing, maintaining, and preserving proper axial alignment of components.
    • 一种用于在超高压下使用水或其它液体介质的水射流切割组件的改进的切割头,切割头包括具有细长主体的组件,该主体具有沿其轴线的中心孔,并且包括位于 部件。 通过结合使用延伸穿过本体的单个孔的形成的制造方法来维持部件的对准,以便形成并保持部件的轴向对准。 该装置的特征还在于具有不含垫圈或其它包装材料的配合表面,从而建立,维持和保持部件的适当轴向对准。
    • 96. 发明授权
    • System for cardiac MR and MR cine imaging using parallel image processing
    • 使用并行图像处理的心脏MR和MR电影成像系统
    • US09566014B2
    • 2017-02-14
    • US13467219
    • 2012-05-09
    • Jian Xu
    • Jian Xu
    • A61B5/055A61B5/0402G01R33/563A61B5/00G01R33/48G01R33/56G01R33/561G01R33/567
    • A61B5/0402A61B5/0037A61B5/0044A61B5/055A61B5/7289G01R33/4822G01R33/5602G01R33/5611G01R33/5616G01R33/56325G01R33/5673
    • A system for cardiac MR imaging receives a heart rate signal representing heart electrical activity. The system, over multiple successive heart cycles, uses multiple MR imaging RF coils in gradient echo imaging a patient heart, synchronized with the heart rate signal and uses an inversion recovery pulse for inverting myocardium tissue MR signal for an individual heart cycle, to acquire, within multiple individual successive portions of an individual heart cycle, corresponding successive multiple patient heart images. An individual image of an individual heart cycle portion is derived from multiple heart image representative data sets comprising a reduced set of k-space data elements acquired using corresponding multiple coils of the RF imaging coils. An image generator generates an MR image of an individual heart cycle portion using the multiple heart image representative data sets comprising the reduced set of k-space data elements.
    • 用于心脏MR成像的系统接收代表心脏电活动的心率信号。 该系统在多个连续的心脏周期中,使用多个MR成像RF线圈在与心率信号同步的患者心脏的梯度回波成像中,并且使用反转恢复脉冲来反转个体心脏周期的心肌组织MR信号, 在单个心脏周期的多个单独的连续部分内,对应的连续的多个患者心脏图像。 来自多个心脏图像代表数据集的个体心脏周期部分的个体图像包括使用RF成像线圈的相应多个线圈获取的k个空间数据元素的缩减集合。 图像发生器使用包括缩小的k空间数据元素集合的多个心脏图像代表数据集来生成单个心脏循环部分的MR图像。