System and methods providing enhanced security model
    41.
    发明申请
    System and methods providing enhanced security model 有权
    提供增强安全模型的系统和方法

    公开(公告)号:US20050091518A1

    公开(公告)日:2005-04-28

    申请号:US10691999

    申请日:2003-10-23

    摘要: The present invention relates to a system and methodology to facilitate security for data items residing within (or associated with) a hierarchical database or storage structure. A database security system is provided having a hierarchical data structure associated with one or more data items. The system includes a security component that applies a security policy to the data items from a global location or region associated with a database. Various components and processes are employed to enable explicit and/or inherited security properties to be received by and propagated to the data items depending on the type of data structure encountered or processed.

    摘要翻译: 本发明涉及一种促进位于分层数据库或存储结构内(或与之相关联的)数据项的安全性的系统和方法。 提供了具有与一个或多个数据项相关联的分层数据结构的数据库安全系统。 该系统包括将安全策略应用于与数据库关联的全球位置或区域的数据项的安全组件。 采用各种组件和过程来使显式和/或继承的安全属性由数据项接收和传播到数据项,这取决于遇到或处理的数据结构的类型。

    Control systems
    42.
    发明授权
    Control systems 失效
    控制系统

    公开(公告)号:US4692067A

    公开(公告)日:1987-09-08

    申请号:US621388

    申请日:1984-06-18

    IPC分类号: E21D23/12 E21D23/14

    CPC分类号: E21D23/12 E21D23/148

    摘要: A coal cutting machine 13, a conveyor 12 and a plurality of mine roof supports 10 extend along the face 11 of a coal mine. The operation of the hydraulic jacks of the roof supports are controlled by pilot valves which are electrically powered and rotationally driven. For example, motorized or cam operated pilot valves can be used. Such pilot valves use much less energy than valves controlled conventionally by solenoids, and the electricity supply can thus be at an intrinsically safe level.The operation of the pilot valves include unitary operation of a given support, remote operation of one support from another and sequential operation of a series of supports. When the system controls a plurality of supports sequentially, sensing means sensitive to a first pressure level in a first support when the first support is set to a mine roof activate another support in the sequence when the first pressure level has been sensed in the first support, while continuing the raising of the pressure in the first support until a second, higher pressure level is detected.A group of supports is controlled by a control station positioned at a face end, and in addition each support has its own individual control position. The control station incorporates a microprocessor which may be reprogrammed underground.

    摘要翻译: 煤矿切割机13,输送机12和多个矿顶支架10沿煤矿的表面11延伸。 屋顶支撑件的液压千斤顶的操作由电动和旋转驱动的先导阀控制。 例如,可以使用电动或凸轮操作的先导阀。 这样的先导阀比通过螺线管常规控制的阀门使用的能量少得多,因此电力供应可以处于本质安全的水平。 先导阀的操作包括给定支撑件的单一操作,一个支撑件从另一个支撑件的远程操作和一系列支撑件的顺序操作。 当系统顺序地控制多个支撑件时,当第一支撑件设置到矿井屋顶时,在第一支撑件中对第一压力水平敏感的感测装置在第一支撑件中感测到第一压力水平时按顺序激活另一支撑件 同时继续提高第一支撑件中的压力,直到检测到第二较高压力水平。 一组支撑件由位于面端的控制台控制,此外,每个支撑件具有其自己的单独的控制位置。 控制站内置微处理器,可在地下进行重新编程。

    Casting method and apparatus
    43.
    发明授权
    Casting method and apparatus 失效
    铸造方法和装置

    公开(公告)号:US4573518A

    公开(公告)日:1986-03-04

    申请号:US608278

    申请日:1984-05-08

    CPC分类号: B22D15/04

    摘要: Castings are produced by sandwiching a central mould part 10 between two outer mould parts 36, 38 during the casting process. The central mould part 10 is then transfered sequentially from between the outer mould parts 36, 38 and subsequently re-located between the outer mould parts in a vacant, relatively cool, and dry condition for the production of a further casting. In one embodiment a plurality of central mould parts are transferred sequentially from the outer mould parts to a removal station 45, a quenching station 50, and a drying station 70, before being returned to the central mould parts.

    摘要翻译: 通过在铸造过程中将中心模具部件10夹在两个外部模具部件36,38之间来制造铸件。 然后中央模具部件10从外模具部件36,38之间顺序传送,随后在空模,相对冷却和干燥的条件下重新定位在外模具部件之间,用于制造另外的铸件。 在一个实施例中,在返回到中央模具部件之前,多个中心模具部件从外部模具部件依次传送到移除站45,淬火站50和干燥站70。

    High bandwidth high gain receiver equalizer
    44.
    发明授权
    High bandwidth high gain receiver equalizer 有权
    高带宽高增益接收均衡器

    公开(公告)号:US07562108B2

    公开(公告)日:2009-07-14

    申请号:US11151573

    申请日:2005-06-13

    IPC分类号: G06G7/02

    CPC分类号: H04L25/03878 H03H11/1291

    摘要: A receiver equalizer with a first equalizer unit having a basic equalizer stage and a negative impedance cell connected to the basic equalizer stage. Preferably the negative impedance cell has a pair of back to back transistors, and connected thereto a parallel resistor capacitor RC network. The basic equalizer stage has a pair of current sources; a pair of transistors arranged as a differential pair, each transistor connected to a different one of the current sources; and a degeneration impedance connected in between the two current sources, and the transistors, wherein the negative impedance cell is connected across the outputs of the pair of transistors.

    摘要翻译: 一种具有第一均衡器单元的接收机均衡器,具有连接到基本均衡器级的基本均衡器级和负阻抗单元。 优选地,负阻抗单元具有一对背对背晶体管,并且连接到并联电阻器电容RC网络。 基本均衡器阶段有一对电流源; 布置为差分对的一对晶体管,每个晶体管连接到不同的一个电流源; 以及连接在两个电流源和晶体管之间的退化阻抗,其中负阻抗单元跨越该对晶体管的输出端连接。

    Self-attaching nut
    45.
    发明申请
    Self-attaching nut 审中-公开
    自连接螺母

    公开(公告)号:US20070154282A1

    公开(公告)日:2007-07-05

    申请号:US11713420

    申请日:2007-03-02

    IPC分类号: F16B37/04

    摘要: A self-attaching nut having a central pilot projecting from an end face of the body portion, an annular groove surrounding the pilot and an annular panel support face surrounding the groove, wherein the outer side wall includes a plurality of circumferentially spaced notches, each having an outer wall which extends from the bottom wall of the annular groove to the panel support face and the bottom wall of the groove includes a plurality of circumferentially spaced radial ribs integral with either the outer or inner side walls of the annular groove having a radial end spaced from the opposed side wall and a top face inclined toward the bottom wall of the annular groove providing improved torque resistance and push-off strength. Alternating circumferentially overlapping radial ribs integral with the pilot and the outer groove wall and ribs which extend below the bottom wall of the groove are also disclosed.

    摘要翻译: 具有从主体部分的端面突出的中心引导件的自连接螺母,围绕引导件的环形槽和围绕槽的环形板支撑面,其中外侧壁包括多个周向间隔开的凹口,每个凹槽具有 从所述环形槽的底壁延伸到所述板支撑面和所述槽的底壁的外壁包括多个周向间隔开的径向肋,所述径向肋与所述环形槽的外侧壁或内侧壁成一体,所述径向肋具有径向端 与相对的侧壁间隔开,并且朝向环形槽的底壁倾斜的顶面提供改进的扭矩阻力和推压强度。 还公开了与引导件和外槽壁一体的交替的周向重叠的径向肋和在槽的底壁下方延伸的外槽壁和肋。

    Synchronising circuit
    48.
    发明授权
    Synchronising circuit 有权
    同步电路

    公开(公告)号:US07236556B2

    公开(公告)日:2007-06-26

    申请号:US10624280

    申请日:2003-07-22

    IPC分类号: H04L25/00 H03D3/24

    摘要: In an integrated circuit receiving multiple serial data streams in parallel, a local clock is generated from each data stream and is synchronized with the data stream. Sometimes a data stream may have no transitions making it difficult to keep the clock synchronized with its data. A clock channel is provided, which always has edges. A circuit is provided for each data stream which measures the time elapsed since the data stream had an edge. After a certain period, the phase of the local clock is nudged towards that of the clock channel. Thereafter, the longer there are no edges on the data stream the more frequently nudges towards the phase of the clock channel are made.

    摘要翻译: 在并行接收多个串行数据流的集成电路中,从每个数据流生成本地时钟并与数据流同步。 有时,数据流可能没有转换,使得难以将时钟与其数据保持同步。 提供了一个始终具有边缘的时钟通道。 为每个数据流提供电路,其测量从数据流具有边缘以来经过的时间。 经过一段时间后,本地时钟的相位被推向时钟通道的相位。 此后,数据流上没有边缘越长,朝向时钟信道的相位越来越频繁地微移。

    Data transmission
    50.
    发明授权
    Data transmission 有权
    数据传输

    公开(公告)号:US07170962B2

    公开(公告)日:2007-01-30

    申请号:US10624307

    申请日:2003-07-22

    IPC分类号: H04L25/00 H04L7/04

    CPC分类号: H04L7/0337 H04L25/14

    摘要: A circuit for receiving multiple serial datastreams in parallel is disclosed. A bit clock is recovered from each data stream, there being one data bit for each transition of the clock signal both positive and negative going. The phases of the bit clocks are compared and are adjusted by 180 degrees so that the positive going edges of all occur close to each other. The bits of each stream are assembled into words under the control of a word clock. In one embodiment a common word clock is derived form the set of bit clocks as a whole. In another embodiment each stream is provided with its own word clock which is aligned to positive edges of the respective bit clocks that are close to each other.

    摘要翻译: 公开了并行接收多个串行数据流的电路。 从每个数据流恢复一个位时钟,每个时钟信号的转换都有一个数据位,分别为正和负。 比较时钟的相位并将其调整180度,使得所有位的正向沿都彼此接近。 每个流的位在字时钟的控制下组装成单词。 在一个实施例中,作为整体的位时钟集合导出公共字时钟。 在另一个实施例中,每个流被提供有其自己的字时钟,其对准彼此接近的相应位时钟的正边沿。