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    • 1. 发明申请
    • PHASE-SHIFTER AND POWER SPLITTER
    • 相变器和电源分配器
    • US20140218130A1
    • 2014-08-07
    • US14128066
    • 2012-06-28
    • Patrick LecamJean-Pierre HarelThomas Julien
    • Patrick LecamJean-Pierre HarelThomas Julien
    • H01P5/12H01P1/18
    • H01P5/08H01P1/18H01P1/183H01P5/183H01Q3/32
    • An integrated device comprises at least one input connector (62) linked to an internal conductive line (64) and at least two output connectors (70A,70B) each respectively linked to an conductive branch (69A, 69B), wherein a single moving part (65), simultaneously serving the functions of a phase-shifter and a power-distributor, which comprises a shared segment (67) divided into two conductive arms (68A, 68B), the shared segment (67) linking the internal conductive line (64) to each of the conductive branches (69A, 69B) respectively, so as to vary, by an equal but opposite quantity, the length of the electric path between the input connector (62) and each of the output conductors (70A,70B) when the moving part (65) moves. The moving part (65) can be actuated from outside the housing, preferentially by means of a transmission bar (66).
    • 集成装置包括连接到内部导线(64)的至少一个输入连接器(62)和分别连接到导电分支(69A,69B)的至少两个输出连接器(70A,70B),其中单个移动部件 (65),同时用作移相器和功率分配器的功能,其包括被分成两个导电臂(68A,68B)的共享段(67),共享段(67)连接内部导线 64B)分别连接到每个导电分支(69A,69B),以便以相等但相反的量改变输入连接器(62)和每个输出导体(70A,70B)之间的电气路径的长度 )当移动部件(65)移动时。 移动部件65可以优选地借助于传动杆(66)从外壳的外部被致动。
    • 4. 发明授权
    • Selective automatic refreshing of stored execution plans
    • 选择性自动刷新存储的执行计划
    • US07831593B2
    • 2010-11-09
    • US11681799
    • 2007-03-05
    • Louis BurgerThomas JulienFrank Roderic Vandervort
    • Louis BurgerThomas JulienFrank Roderic Vandervort
    • G06F17/30
    • G06F17/30483
    • A system and method for selectively recompiling stored execution plans within a database system. In one technique the execution plans include respective version numbers of database software operable within the database system during compilation of the respective plans. A request is received to execute one of the stored execution plans, and the stored execution plan is retrieved from computer memory. A version number is obtained of database software operable within the database system during retrieval of the stored execution plan. The obtained version number is compared with the version number associated with the retrieved execution plan. On detecting a mismatch between the obtained version number and the retrieved version number, the stored execution plan is recompiled. In another technique the stored execution plans include respective cost parameters representing the hardware capabilities of the system at the time of plan compilation. A set of cost parameters representing the cost of executing the stored execution plan within the database system is compared with the stored cost parameters associated with the retrieved execution plan. On detecting a significant difference between the defined cost parameters and the retrieved cost parameters, the stored execution plan is recompiled.
    • 一种用于在数据库系统内有选择地重新编译存储的执行计划的系统和方法。 在一种技术中,执行计划包括在各个计划的汇编期间在数据库系统内可操作的数据库软件的相应版本号。 接收到执行存储的执行计划之一的请求,并且从计算机存储器检索存储的执行计划。 在检索存储的执行计划期间获得在数据库系统内可操作的数据库软件的版本号。 将获得的版本号与与检索到的执行计划相关联的版本号进行比较。 在检测到所获得的版本号与检索到的版本号之间的不匹配时,重新编译存储的执行计划。 在另一种技术中,存储的执行计划包括表示在计划编译时系统的硬件能力的相应的成本参数。 将代表在数据库系统中执行存储的执行计划的成本的一组成本参数与与检索的执行计划相关联的存储成本参数进行比较。 在检测到定义的成本参数和检索到的成本参数之间的显着差异时,重新编译存储的执行计划。
    • 5. 发明申请
    • DATABASE SYSTEM WORKLOAD MANAGEMENT METHOD AND SYSTEM
    • 数据库系统工作负载管理方法与系统
    • US20080104015A1
    • 2008-05-01
    • US11554113
    • 2006-10-30
    • Louis BurgerThomas JulienFrank Roderic Vandervort
    • Louis BurgerThomas JulienFrank Roderic Vandervort
    • G06F17/30
    • G06F17/30498
    • An improved workload management system and method for a database system. The improved workload management system evaluates certain workload management rules dynamically at key points during database query execution rather than relying on enforcement prior to query activation. In the case of product join operations, the workload management system evaluates the potential impact on system performance by the product join operation after input tables have been populated, but prior to the execution of the join operation. Delaying workload management enforcement to this point ensures that the sizes of inputs and outputs are reliably known and improves system performance impact estimates at a point early enough to prevent any serious performance degradation from an inefficient product join.
    • 改进了数据库系统的工作负载管理系统和方法。 改进的工作负载管理系统在数据库查询执行期间的关键点动态评估某些工作负载管理规则,而不是在查询激活之前依赖执行。 在产品加入操作的情况下,工作负载管理系统通过输入表填充之后,但在执行连接操作之前,通过产品连接操作评估对系统性能的潜在影响。 延迟工作负载管理实施到这一点可以确保输入和输出的大小可靠地被知道,并提前一个时间点提高系统性能影响估计,以防止任何严重的性能下降,从低效的产品连接。