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    • 3. 发明授权
    • High performance shared memory for a bridge router supporting cache
coherency
    • 支持高速缓存一致性的桥接路由器的高性能共享内存
    • US6018763A
    • 2000-01-25
    • US858182
    • 1997-05-28
    • John H. HughesMark S. Isfeld
    • John H. HughesMark S. Isfeld
    • G06F12/08H04L12/56G06F15/167G06F15/17
    • H04L12/5693G06F12/0822H04L49/90H04L49/901H04L49/9047
    • An internetwork device manages the flow of packets of I/O data among a plurality of network interface devices. The internetwork device includes an I/O bus which is coupled to the plurality of network interface devices and a shared memory, for storing packets of I/O data and control structures needed by the plurality internetwork interface devices. The shared memory is also coupled to a processor bus, which connects to a processor and a processor memory. The processor memory is isolated from the shared memory, and is used for storing routines and internetworking information involved in routing packets of I/O data among the plurality of network interface devices. In this way, accesses between the processor and the processor memory are decoupled from accesses between the plurality of network interface devices. System performance is improved by storing copies of items from the shared memory in a processor cache located near the processor. Consistency rules are enforced between items in the shared memory and copies of the items in the processor cache through communications across the processor bus. Communications across the processor bus to enforce consistency rules are minimized by maintaining a shadow tag store near the shared memory, which keeps track of the items from the shared memory which are copied in the processor cache. Communications to enforce consistency rules only take place if the shadow tag store indicates that the processor cache contains an item of data from the shared memory which has been read from or written to.
    • 互联网络设备管理多个网络接口设备之间的I / O数据分组的流。 互联网络设备包括耦合到多个网络接口设备的I / O总线和用于存储多个互联网络接口设备所需的I / O数据和控制结构的分组的共享存储器。 共享存储器还耦合到处理器总线,其连接到处理器和处理器存储器。 处理器存储器与共享存储器隔离,并且用于存储在多个网络接口设备之间路由I / O数据分组中涉及的例程和互联网络信息。 以这种方式,处理器和处理器存储器之间的访问与多个网络接口设备之间的访问分离。 通过将来自共享存储器的项目副本存储在位于处理器附近的处理器高速缓存器中来提高系统性能。 一致性规则在共享存储器中的项目和处理器缓存中的项目的副本之间通过整个处理器总线的通信来执行。 通过在共享存储器附近保持阴影标签存储来保持处理器总线上的通信,从而实现一致性规则的最小化,共享存储器可以跟踪共享存储器中复制在处理器高速缓存中的项目。 如果影子标签存储指示处理器缓存包含从已经被读取或写入的共享存储器中的数据项,则仅执行用于强制一致性规则的通信。
    • 4. 发明授权
    • Comminuting chamber and attachments therefor
    • 服务室及其附件
    • US5927624A
    • 1999-07-27
    • US919402
    • 1997-08-28
    • John H. Hughes
    • John H. Hughes
    • B02C18/06B02C13/286
    • B02C18/067
    • A comminuting chamber (24) and attachments therefor for comminuting solid material into a particulate form is disclosed. The chamber includes a rotatable sidewall (40), a bottom (41) disposed across an end of the sidewall, and a toothed disk (32) rotatably mounted within the chamber adjacent the bottom. At least one attachment (28) is secured to the bottom of the chamber and provides a variety of surfaces which engage and reorient material being comminuted in the chamber. The attachment may include a plate (30) that extends horizontally in a plane adjacent the bottom. An edge of the plate may further have a flange (80) that extends outward and downward toward the chamber bottom. The attachment may also include a rotary scrubber (38) having a hub (56) and a plurality of arms (58) extending radially outward from the hub. The scrubber is either rotatably mounted on the plate or on the chamber bottom. Where the attachment includes a plate, riser plate members (88) extending upward into the chamber may be attached to the plate. The plate may also include upward-extending scraper plates (92) adjacent the comminuting chamber sidewall for scraping material that has collected on the chamber sidewall as the sidewall rotates. By engaging and reorienting the material being comminuted in the chamber, the attachment surfaces improve the efficiency of the comminuter.
    • 公开了一种粉碎室(24)及其附件,用于将固体材料粉碎成颗粒形式。 所述腔室包括可旋转侧壁(40),横跨所述侧壁的端部设置的底部(41)和与所述底部相邻地可旋转地安装在所述腔室内的齿形盘(32)。 至少一个附件(28)固定到腔室的底部,并且提供各种表面,其接合并重新定向在腔室中被粉碎的材料。 附件可以包括在邻近底部的平面中水平延伸的板(30)。 板的边缘还可以具有向腔室底部向外和向下延伸的凸缘(80)。 附件还可以包括具有毂(56)和从轮毂径向向外延伸的多个臂(58)的旋转洗涤器(38)。 洗涤器可旋转地安装在板上或室底部。 在附件包括板的情况下,向上延伸到室中的提升板构件(88)可以附接到板。 该板还可以包括邻近粉碎室侧壁的向上延伸的刮板(92),用于当侧壁旋转时用于刮擦收集在室侧壁上的材料。 通过接合和重新定向在室中粉碎的材料,附着表面提高了粉碎机的效率。
    • 5. 发明授权
    • Redundant field-defining arrays for a radiation system
    • 用于辐射系统的冗余场定义阵列
    • US5757881A
    • 1998-05-26
    • US779177
    • 1997-01-06
    • John H. Hughes
    • John H. Hughes
    • A61N5/10G21K1/04
    • A61N5/1042G21K1/04G21K1/046A61N2005/1089
    • A system for applying radiation therapy includes a radiation source for emitting a radiation beam and includes redundant treatment field-defining arrays for shaping the radiation beam. The radiation beam is initially shaped by a multileaf collimator having a side-by-side arrangement of leaf pairs. The leaves are individually manipulable to define apertures between the leaves of a pair. Thus, the contour of an irregular treatment field can be precisely defined. The second field-defining array includes field-defining members that are individually connected to corresponding leaves of the multileaf collimator. Preferably, the connections are mechanical linkages and there is a one-to-one correspondence of the field-defining members and the leaves. Adjustment of a leaf simultaneously adjusts a position of a corresponding field-defining member. Also in the preferred embodiment, the second array is contained within a conically shaped housing that provides beam guidance. As a result of the shape of the housing and the redundant arrays, healthy tissue is shielded during irradiation of a patient.
    • 用于施加放射治疗的系统包括用于发射辐射束的辐射源,并且包括用于成形辐射束的冗余治疗场定义阵列。 辐射束最初由具有叶对并排布置的多叶准直器形成。 叶子可单独操作以限定一对叶片之间的孔。 因此,可以精确地定义不规则处理场的轮廓。 第二场定义阵列包括单独连接到多叶准直器的相应叶片的场定义构件。 优选地,连接是机械连接,并且场限定构件和叶子具有一一对应关系。 叶片的调整同时调节对应的场限定构件的位置。 同样在优选实施例中,第二阵列包含在提供光束引导的锥形壳体内。 由于外壳和冗余阵列的形状,在患者的照射期间屏蔽健康的组织。
    • 6. 发明授权
    • Turbine shroud segment including a coating layer having varying thickness
    • 涡轮护罩段包括具有不同厚度的涂层
    • US5439348A
    • 1995-08-08
    • US220084
    • 1994-03-30
    • John H. HughesDavid M. NissleyKevin N. McCuskerCharles A. Ellis
    • John H. HughesDavid M. NissleyKevin N. McCuskerCharles A. Ellis
    • F01D11/08F01D11/12
    • F01D11/122Y10T29/4932
    • A turbine shroud segment includes a substrate and a coating layer having varying thickness. Various construction details are developed that provide minimal spalling of the coating layer during use of the shroud segment. In a particular embodiment, a shroud segment includes a coating layer that tapers towards the edges. The thickness tapers to a minimum thickness along the leading and trailing edges. Within the blade passing region of the shroud segment, the coating layer tapers towards the lateral edges to a thickness determined by the minimum thickness required for abrasive contact between the shroud segment and rotor blades. In another particular embodiment, the varying thickness of the coating layer is produced by forming the substrate with a concave surface, applying the coating, and subsequently machining back the coating layer to the desired dimensions.
    • 涡轮机护罩段包括基底和具有变化厚度的涂层。 开发了各种构造细节,其在使用护罩段期间提供涂层的最小剥落。 在一个具体实施例中,护罩段包括朝向边缘逐渐变细的涂层。 厚度沿着前缘和后缘渐缩至最小厚度。 在护罩片段的刀片通过区域内,涂层朝向侧边缘逐渐变细,由厚度确定的护罩段和转子叶片之间磨料接触所需的最小厚度确定。 在另一个具体实施方案中,涂层的变化厚度是通过用凹面形成基底,施加涂层,并随后将涂层加工回所需尺寸而产生的。
    • 10. 发明授权
    • Routing table lookup implemented using M-trie having nodes duplicated in multiple memory banks
    • 使用具有在多个存储体中重复的节点的M-trie来实现路由表查找
    • US06308219B1
    • 2001-10-23
    • US09127253
    • 1998-07-31
    • John H. Hughes
    • John H. Hughes
    • G06F15173
    • H04L45/00H04L45/742
    • The invention provides a method and system for rapid access to one or more M-tries for responding to header information. The M-tries are stored in a plurality of memory banks, which are accessed in parallel to provide relatively greater access throughput. Parts of the M-tries that are (or are expected to be) frequently referenced are stored in multiple banks of the memory, to provide concurrent simultaneous access for those parts of the M-tries for parallel lookup of multiple routes. Regions of the multiple banks of the memory can be dynamically reallocated to provide improved access through-put to those multiple banks. The invention can be applied to routing decisions in response to destination addresses, to combinations of destination and source addresses (either for unicast or multicast routing), to access control decisions, to quality of service decisions, to accounting, and to other administrative processing in response to header information.
    • 本发明提供了一种方法和系统,用于快速访问一个或多个M尝试以响应标题信息。 M次尝试被存储在多个存储体中,它们被并行访问以提供相对更大的访问吞吐量。 经常引用的(或预计将被)频繁引用的M部分部分存储在存储器的多个存储区中,以便为并行查找多个路由的M-M的各个部分提供并发的并发访问。 可以动态地重新分配存储器的多个存储区的区域,以向这些多个存储体提供改进的存取输入。 本发明可以应用于响应于目的地地址的路由决定,目的地址和源地址(用于单播或多播路由)的组合,以访问控制决策,服务质量决定,计费以及其他管理处理 对标题信息的响应。