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    • 2. 发明专利
    • DISK CACHE CONTROL SYSTEM
    • JPS62271029A
    • 1987-11-25
    • JP11538286
    • 1986-05-19
    • FUJITSU LTD
    • KAMATA MASAYOSHI
    • G06F3/06G06F12/08
    • PURPOSE:To shorten the access time to a record by collecting the pointers in a pair to an identifying information part and a data part of a cache buffer and storing them a single area of the buffer in case a stored record is staged to the buffer. CONSTITUTION:A transfer control part 26 monitors the staging instruction received from a magnetic disk controller and recognizes the first information of a fixed length as the head information part HA and the next information of a fixed length as an identifying information part of the 0-th code. Then both information parts are stored in a memory area of a fixed length designated by an address register 23 for identifying information part. While the contents of an address register 24 for data part are stored after the identifying information part in the latter half of the area of a fixed length and then used as pointers indicating the memory areas of the data part of each record. The information received after the identifying information part is recognized as the data part and stored successively in a memory area designated by the register 24. The end of the data part is detected by the part 26 after comparison carried out between the number of received byte numbers and the flags of both key length and data length.
    • 4. 发明专利
    • PREVENTING CIRCUIT FOR ABNORMAL INTERRUPTION
    • JPS5687125A
    • 1981-07-15
    • JP16445479
    • 1979-12-18
    • FUJITSU LTD
    • KAMATA MASAYOSHI
    • G06F11/00G06F3/00G06F13/00
    • PURPOSE:To avoid reporting the abnormal interruption to the higher-rank side from the unused device and thus prevent the lowering of function of a control device, by accepting the interruption signal of the device that is registered with VARY-ON and blocking the interruption signal of the device that is excluded with VARY-OFF respectively. CONSTITUTION:The VARY-ON/VARY-OFF information is transferred to the decoder 4 from the interface part 2. The VARY-ON information turns to the set signal (a) and the device number (c) or (d) to drive the FF9 or 10 via the AND circuits 5 and 7 and then sends the on-output to the AND circuits 11 and 12. Then the device interface 13 receives the interruption signal (g) from each device, and the interruption signal (e) or (f) is delivered via the circuits 11 and 12. On the other hand, the VARY-OFF information turns through the decoder 4 to the reset signal (b) and the device number (c) or (d) to drive the FF9 or FF10 and then sends the off-output to the circuit 11 or 12. The circuit 11 or 12 does not work, and as a result, no abnormal interruption is reported to the higher-rank side form the device which is not used. Thus the lowering of function can be prevented for the control device.
    • 6. 发明专利
    • Data transfer device for intermittent communication environment, and method and program therefor
    • 用于间歇式通信环境的数据传输设备及其方法和程序
    • JP2012253450A
    • 2012-12-20
    • JP2011122660
    • 2011-05-31
    • Fujitsu Ltd富士通株式会社
    • YAMADA HIROSHIINOUE YASUOMATSUMOTO SHINICHIKAMATA MASAYOSHI
    • H04W40/34H04W4/04
    • H04W40/026H04W40/246
    • PROBLEM TO BE SOLVED: To provide a data transfer device capable of communicating with the entire nodes without increasing the amount of storage data in an intermittent communication environment.SOLUTION: There are a plurality of physically isolated local LANs, and a forwarder for bridging between access points of the LANs and an access point in a global network when the LANs communicate through the global network. The forwarder stores data received from the LAN access point, and transmits the data when becoming communicable with the access point in the global network. The LAN access point determines whether data can be transferred securely to a particular transmission destination, and by selecting a forwarder having high possibility to transfer to the transmission destination, transmits the data to the forwarder.
    • 要解决的问题:提供一种能够在不增加间歇通信环境中的存储数据量的情况下与整个节点进行通信的数据传送装置。 解决方案:当局域网通过全球网络进行通信时,存在多个物理上隔离的本地局域网,以及用于在LAN的接入点和全局网络中的接入点之间桥接的转发器。 转发器存储从LAN接入点接收的数据,并且在与全球网络中的接入点通信时发送数据。 LAN接入点确定数据是否可以安全地传送到特定的发送目的地,并且通过选择具有高可能性转发到发送目的地的转发器,将数据发送到转发器。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • BUFFER CONTROL SYSTEM
    • JPH01134643A
    • 1989-05-26
    • JP29462187
    • 1987-11-20
    • FUJITSU LTD
    • KAMATA MASAYOSHI
    • G06F3/06G06F12/08
    • PURPOSE:To shorten an access time by adding additional information to data on a buffer and retrieving the data based on this additional information. CONSTITUTION:When respective record data on a disk are written on the buffer in a disk catching device, additional information 103 to distinguish the respective record data is added to preliminarily determined positions in an identifying information part 101 and a data part 102 of the record data and stored. As the time of reading the data, the information 103 is successively searched only (m) times until the address of (m)-th information 101 related to a reading command is obtained, the additional information obtained in an (m)-th times is successively searched, and the record data to receive the reading command are read based on the address of the additional information obtained in the (m)-th time. Thus, since the additional information is recorded at the preliminarily determined positions, it is possible to reach an aimed record only by searching the additional information successively, and the data on the buffer can be retrieved promptly.
    • 10. 发明专利
    • Network monitoring device and network monitoring method
    • 网络监控设备和网络监控方法
    • JP2008236307A
    • 2008-10-02
    • JP2007072197
    • 2007-03-20
    • Fujitsu Ltd富士通株式会社
    • JITSUI TSUNEJITOGASAKI KATSUNARIKAMATA MASAYOSHISATO MITSUHIRO
    • H04M3/00H04L12/70
    • H04L47/11H04L43/16H04L47/10
    • PROBLEM TO BE SOLVED: To provide a network monitoring device and network monitoring method, for judging congestion by easily monitoring the traffic value of a monitoring target device with a simple configuration. SOLUTION: The network monitoring device for judging congestion of the monitoring target device on the basis of a traffic value sent from the monitoring target device stores the traffic value sent from the monitoring target device 30, calculates a traffic calculation value to be used when congestion determination is performed from the stored traffic value, the traffic calculation value is used for a determination target value being a traffic value to be a target of congestion determination among traffic values sent from the monitoring target device 30 or a threshold during congestion determination, the determination target value is compared with the threshold, and congestion of the monitoring target device is judged on the basis of the comparison result. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种网络监视设备和网络监控方法,用于通过简单的配置容易地监视监控对象设备的流量值来判断拥塞。 解决方案:根据从监控对象设备发送的流量值来判断监控对象设备的拥塞的网络监控设备存储从监控对象设备30发送的流量值,计算要使用的流量计算值 当从存储的流量值执行拥塞确定时,将流量计算值用作作为在监测目标设备30发送的流量值中的拥塞确定的目标的流量值的确定目标值或拥塞确定期间的阈值, 将确定目标值与阈值进行比较,并且基于比较结果来判断监视目标设备的拥塞。 版权所有(C)2009,JPO&INPIT