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    • 3. 发明授权
    • Actuator drive circuit
    • 执行器驱动电路
    • US06713979B2
    • 2004-03-30
    • US10201972
    • 2002-07-25
    • Hayato NaitoNoriaki OkadaKazuhiko Saito
    • Hayato NaitoNoriaki OkadaKazuhiko Saito
    • H02P314
    • H02P29/02H02P6/24
    • In the invention, pairs of output transistors are provided. An actuator having an inductance is connected to nodes formed between the pairs of output transistors. A drive circuit for the actuator is arranged such that the actuator is driven by causing a drive current to flow into the inductance. The drive circuit has an overvoltage detection circuit for detecting whether or not a voltage appearing at the nodes of the output transistor pairs exceeds a supply voltage by a first predetermined level and whether or not the voltage becomes lower than a ground level by a second predetermined level. Output transistors connected to the nodes are activated by an output from the overvoltage detection circuit.
    • 在本发明中,提供了输出晶体管对。 具有电感的致动器连接到形成在输出晶体管对之间的节点。 用于致动器的驱动电路被布置成使得致动器通过使驱动电流流入电感而被驱动。 驱动电路具有过电压检测电路,用于检测出现在输出晶体管对的节点处的电压是否超过第一预定电平的电源电压以及电压是否低于接地电平第二预定电平 。 连接到节点的输出晶体管由过电压检测电路的输出激活。
    • 8. 发明授权
    • Symmetric/asymmetric shared processing operation in a tightly coupled
multiprocessor
    • 紧密耦合的多处理器中的对称/非对称共享处理操作
    • US5649184A
    • 1997-07-15
    • US495982
    • 1990-03-20
    • Katsumi HayashiMasaaki MitaniYutaka SekineTomohiro HayashiKazuhiko SaitoYoshinori Shimogai
    • Katsumi HayashiMasaaki MitaniYutaka SekineTomohiro HayashiKazuhiko SaitoYoshinori Shimogai
    • G06F9/46G06F17/30
    • G06F9/524Y10S707/922Y10S707/99938
    • In a data base processing system using a multiprocessor system, the data base processing system includes: a storage unit provided in the shared memory for storing data base management information representing either an object of a shared processing operation or an object of a local processing operation for every resource; an access management unit provided in each of the processor modules for performing an access control for an access request to the data base under either the shared processing operation or the local processing operation in accordance with the data base management information, the shared processing operation being symmetrically performed, and the local processing operation being asymmetrically performed in each processor module; and a control unit provided in the processor module for controlling the shared/local conversion in such a way that: an access state of the resource is managed for every resource; when a frequency of the access is unevenly distributed to a particular processor module, the resource of that processor module is determined as the object of the local processing operation at that particular processor module; and when the frequency of the access is not unevenly distributed to a particular processor module, the resource of a particular processor module is determined as the object of the shared processing operation. The data base processing system further includes a deadlock detection system.
    • 在使用多处理器系统的数据库处理系统中,数据库处理系统包括:存储单元,设置在共享存储器中,用于存储表示共享处理操作的对象或本地处理操作的对象的数据库管理信息, 每个资源; 在每个处理器模块中设置的访问管理单元,用于根据数据库管理信息在共享处理操作或本地处理操作下执行对数据库的访问请求的访问控制,共享处理操作对称地 并且在每个处理器模块中不对称地执行本地处理操作; 以及控制单元,设置在所述处理器模块中,用于以如下方式控制所述共享/本地转换:对每个资源管理所述资源的访问状态; 当访问频率不均匀地分配给特定处理器模块时,该处理器模块的资源被确定为该特定处理器模块处的本地处理操作的对象; 并且当访问的频率不是不均匀地分配给特定处理器模块时,特定处理器模块的资源被确定为共享处理操作的对象。 数据库处理系统还包括死锁检测系统。