Enhanced real time kinematics determination method and apparatus
    1.
    发明申请
    Enhanced real time kinematics determination method and apparatus 有权
    增强型实时运动学测定方法及装置

    公开(公告)号:US20050001762A1

    公开(公告)日:2005-01-06

    申请号:US10610541

    申请日:2003-07-02

    CPC classification number: G01S19/44

    Abstract: A method of and computer-readable medium containing instructions for high accuracy, reliable position determination. A high precision GPS-RTK system using the present novel techniques is initialized instantaneously or near instantaneously. To improve the computational efficiency and to improve the reliability of the procedure, advances in data functional and stochastic modeling, validation criteria, adaptation and system design were achieved. A position estimate using an integrated method is determined. Ambiguity resolution of the position estinate is enhanced by applying a quality control procedure using derived validation criteria. A second position estimate based on the enhanced ambiguity resolution is derived.

    Abstract translation: 包含用于高精度,可靠位置确定的指令的方法和计算机可读介质。 使用本新技术的高精度GPS-RTK系统被瞬时或接近地初始化。 为了提高计算效率和提高程序的可靠性,实现了数据功能和随机建模,验证标准,适应和系统设计的进步。 确定使用积分方法的位置估计。 通过使用衍生的验证标准应用质量控制程序来增强位置估计的模糊度分辨率。 导出基于增强的模糊度分辨率的第二位置估计。

    Pixel-data line buffer approach having variable sampling patterns
    4.
    发明授权
    Pixel-data line buffer approach having variable sampling patterns 有权
    具有可变采样模式的像素数据线缓冲器方法

    公开(公告)号:US07750979B2

    公开(公告)日:2010-07-06

    申请号:US10045929

    申请日:2001-10-26

    CPC classification number: H04N19/162 H04N19/119

    Abstract: A pixel-data processing circuit delivers a fixed number of pixels to a video processing stage using an irregular sampling pattern that is defined by a variably-definable sampling window. In one example embodiment directed to processing an input stream of pixels corresponding to an array of video pixels, the window size is selected from one of various options for sampling subsets of the array as a two-dimensional window that spans the pixels in the array. A sampling-window is used such that the window size is a multiple of the sampling-window size and the sampling-window size defines the fixed number of pixels. The processing includes concurrently moving pixel data from the input stream into a first set of line buffers with the pixels stored in the first set of line buffers including pixels for the established window size, prefetching the stored pixels from the first set of line buffers into a second set of line buffers, the second set of line buffers being sufficiently long to store at least the pixels corresponding to the established sampling-window size, and fetching the fixed number of pixels from the second set of line buffers. In various applications, in addition to flexibility, the present invention realizes enhanced throughput.

    Abstract translation: 像素数据处理电路使用由可变定义的采样窗口定义的不规则采样模式将固定数量的像素传送到视频处理级。 在针对处理对应于视频像素阵列的像素的输入流的一个示例性实施例中,窗口大小从用于将阵列的子集进行抽样的各种选项中的一个选择为跨越阵列中的像素的二维窗口。 使用采样窗口,使得窗口大小是采样窗口大小的倍数,采样窗口大小定义固定数量的像素。 该处理包括将来自输入流的像素数据同时移动到第一组行缓冲器中,其中存储在第一组行缓冲器中的像素包括用于建立的窗口大小的像素,将存储的像素从第一组行缓冲器预取为 第二组线缓冲器,第二组线缓冲器足够长以至少存储与所建立的采样窗口大小相对应的像素,以及从第二组线缓冲器获取固定数量的像素。 在各种应用中,除了灵活性之外,本发明实现了增加的吞吐量。

    Bearing compartment self cooling vent system
    5.
    发明授权
    Bearing compartment self cooling vent system 有权
    轴承箱自冷却通风系统

    公开(公告)号:US06438938B1

    公开(公告)日:2002-08-27

    申请号:US09776353

    申请日:2001-02-02

    Abstract: An apparatus for use in the bearing compartment of a gas turbine engine includes a first conduit and a second conduit. The first conduit defines inner and outer surfaces between an inlet end and an outlet end. The second conduit defines inner and outer surfaces between an inlet end and an outlet end. At least a portion of the second conduit is substantially coaxial with and enclosed by at least a portion of the first conduit. One of the first conduit or the second conduit is a lubricant feed to the bearing compartment. The other of the first conduit and the second conduit is the air vent from the bearing compartment.

    Abstract translation: 用于燃气涡轮发动机的轴承室中的装置包括第一导管和第二导管。 第一导管限定入口端和出口端之间的内表面和外表面。 第二导管限定入口端和出口端之间的内表面和外表面。 第二导管的至少一部分与第一导管的至少一部分基本同轴并且被第一导管的至少一部分包围。 第一导管或第二导管之一是向轴承隔室供给润滑剂。 第一导管和第二导管中的另一个是来自轴承室的通风口。

    Aerofoil blade damper
    6.
    发明授权
    Aerofoil blade damper 失效
    翼型叶片阻尼器

    公开(公告)号:US06267557B1

    公开(公告)日:2001-07-31

    申请号:US09438982

    申请日:1999-11-12

    Applicant: Kevin Chin

    Inventor: Kevin Chin

    CPC classification number: F01D5/22

    Abstract: A damping member (27) for positioning between the undersides of the platforms of adjacent turbine blades (20) and the peripheral surface of a disc (19) upon which the turbine blades (20) are mounted. The damping member (27) comprises first, second and third portions (28,31 and 32). The first portion (28) simultaneously engages the adjacent blade platforms (24) whereas the second and third portions (31,32) converge to engage each other at the disc (19) peripheral surface from a spaced apart relationship with each other at their attachment to the first portion (28). Frictional interaction between the second and third portions (31,32) and the disc (19) peripheral surface provides damping of turbine blade (20) vibration.

    Abstract translation: 用于定位在相邻涡轮叶片(20)的平台的下侧和安装有涡轮叶片(20)的圆盘(19)的圆周表面之间的阻尼构件(27)。 阻尼构件(27)包括第一,第二和第三部分(28,31和32)。 第一部分(28)同时接合相邻的叶片平台(24),而第二和第三部分(31,32)会聚在盘(19)周边表面处彼此间隔开的关系彼此接合 到第一部分(28)。 第二和第三部分(31,32)和盘(19)周边表面之间的摩擦相互作用提供了涡轮机叶片(20)振动的阻尼。

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