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    • 31. 发明授权
    • Hybrid hash join process
    • 混合哈希连接过程
    • US06263331B1
    • 2001-07-17
    • US09135313
    • 1998-07-30
    • Lee-Chin Hsu LiuLowell L. BaerenwaldJames M. PlasekMichael S. JendeKenji Yoneda
    • Lee-Chin Hsu LiuLowell L. BaerenwaldJames M. PlasekMichael S. JendeKenji Yoneda
    • G06F1700
    • G06F17/3048G06F17/30498Y10S707/99933Y10S707/99934
    • A hybrid hash join process joins data rows from two tables which have at least one common data column by partitioning the data rows based on the values in the common data column(s), creating data structures to decrease search time for matching rows, and recovering full data buffers using a unique buffer management methodology. A smaller one of the two tables is designated as an outer table and a larger one of the two tables as an inner table. The hybrid hash join process determines which rows in the inner and outer tables satisfy a selection criteria; the rows that satisfy the selection criteria are referred to as inner hit rows and outer hit rows. The hybrid hash join process assigns the inner and outer hit rows to corresponding inner and outer partitions, respectively. Buffer overflow in the outer partitions is handled by linking empty buffers to the outer partitions until all buffers are used. Buffer space is recovered by writing outer hit rows for a selected partition to mass storage. Buffer overflow in the inner partitions is handled by either writing the inner rows in the buffer to mass storage or by searching the corresponding outer partition for matches. The outer hit rows in the corresponding outer partition are allocated to entries in a data structure which is then probed to find matches for the inner hit rows in the buffer. Matching outer hit rows for any inner hit rows written to mass storage are found by repeatedly reading into memory inner and outer hit rows and probing a data structure created from the memory-resident outer hit rows in a partition. Optionally, binary trees are built from the entries in the data structure to speed up the probing procedure. The hybrid hash join process uses at least one hashing algorithm to assign hit rows to partitions, to allocate rows to entries in the data structures, and to probe the data structures for matches.
    • 混合散列连接过程通过基于公共数据列中的值划分数据行,从具有至少一个公共数据列的两个表中连接数据行,创建数据结构以减少匹配行的搜索时间,并且恢复 全数据缓冲区使用独特的缓冲区管理方法。 两个表中较小的一个表被指定为外部表,两个表中较大的一个作为内部表。 混合散列连接过程确定内表和外表中的哪些行满足选择标准; 满足选择条件的行被称为内部命中行和外部命中行。 混合散列连接过程分别将内部和外部命中行分配给相应的内部和外部分区。 外部分区中的缓冲区溢出通过将空缓冲区链接到外部分区来处理,直到使用所有缓冲区。 通过将所选分区的外部命中行写入大容量存储来恢复缓冲区空间。 内部分区中的缓冲区溢出通过将缓冲区中的内部行写入大容量存储或通过搜索相应的外部分区进行匹配来处理。 相应的外部分区中的外部命中行被分配给数据结构中的条目,然后被探测以找到缓冲区中的内部命中行的匹配。 通过重复读入存储器内部和外部命中行并探测从分区中的存储器驻留的外部命中行创建的数据结构,找到写入大容量存储的任何内部命中行的匹配外部命中行。 可选地,从数据结构中的条目构建二进制树,以加速探测过程。 混合散列连接过程使用至少一个散列算法来将命中行分配给分区,以将行分配给数据结构中的条目,并探索数据结构以进行匹配。
    • 37. 发明授权
    • Elevator test operation apparatus
    • 电梯试运行装置
    • US4330838A
    • 1982-05-18
    • US56149
    • 1979-07-09
    • Kenji YonedaMasao NakazatoTakeo YuminakaKazuhiro SakataSoshiro Kuzunuki
    • Kenji YonedaMasao NakazatoTakeo YuminakaKazuhiro SakataSoshiro Kuzunuki
    • B66B1/06B66B5/00B66B3/00G06F15/20
    • B66B5/0087
    • An elevator test operation apparatus for a multi-floor service elevator comprises a digital computer for processing an elevator control signal. The digital computer is provided with means for storing an elevator operation control program, and interface means for transferring a signal from an elevator control system to the digital computer or transferring a signal from the digital computer to the elevator control system, thereby to process the signal from the elevator control system in accordance with said elevator operation control program. The elevator test operation system further comprises means operated by maintenance personnel in a test operation and generating test signals such as a command for establishing an elevator car weight and a command for shortening a period of time when an elevator door is opened, and interface means for supplying those test signals to the digital computer, wherein the digital computer further comprises means for storing various programs for shortening the opening time of the elevator door during test operation and for establishing the elevator car weight, and a test operation program thereby to execute the test operation program in accordance with the test operation signal.
    • 一种用于多楼层服务电梯的电梯测试操作装置包括用于处理电梯控制信号的数字计算机。 数字计算机具有用于存储电梯操作控制程序的装置,以及用于将信号从电梯控制系统传送到数字计算机或将信号从数字计算机传送到电梯控制系统的接口装置,从而处理信号 根据所述电梯操作控制程序从电梯控制系统。 电梯测试操作系统还包括由维护人员在测试操作中操作的装置,并产生诸如用于建立电梯轿厢重量的命令和用于缩短电梯门打开时的时间段的命令的测试信号;以及用于 将这些测试信号提供给数字计算机,其中数字计算机还包括用于存储用于在测试操作期间缩短电梯门的打开时间并用于建立电梯轿厢重量的各种程序的装置,以及测试操作程序,从而执行测试 操作程序按照测试操作信号。
    • 40. 发明申请
    • LED LIGHT SOURCE DEVICE
    • LED光源设备
    • US20120188745A1
    • 2012-07-26
    • US13266354
    • 2010-12-27
    • Kenji Yoneda
    • Kenji Yoneda
    • F21V9/16F21V29/02
    • F21V29/02F21K9/232F21V3/00F21V25/04F21V29/74F21V29/773F21V29/83F21Y2115/10
    • The present invention is intended to thermally isolate an LED and a control part from each other to make it difficult to thermally influence each other, and also to optimize fin shapes suitable for allowable temperatures of the both respectively, and is provided with: a first housing that contains an LED board; a second housing that contains an LED control part; a connecting member that connects the first housing and the second housing to each other; a fan mechanism that is provided between the first housing and the second housing; heat dissipation fins that are provided around the fan mechanism in the first housing; and an air path of which one end opening is formed at a position facing to an air inlet side of the fan mechanism in the second housing, and the other opening is formed on a surface different from an opposed surface of the second housing.
    • 本发明旨在将LED和控制部件彼此热隔离,使得难以彼此热影响,并且还优选分别适合于两者的允许温度的翅片形状,并且设置有:第一壳体 包含一个LED板; 第二壳体,其包含LED控制部件; 连接构件,其将所述第一壳体和所述第二壳体彼此连接; 风扇机构,其设置在所述第一壳体和所述第二壳体之间; 设置在第一壳体中的风扇机构周围的散热片; 在第二壳体的与风扇机构的空气入口侧相对的位置上形成有一个端部开口的空气路径,另一个开口形成在与第二壳体的相对表面不同的表面上。