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    • 23. 发明申请
    • RELAY DEVICE AND RELAY METHOD
    • 继电器和继电器方法
    • US20100088764A1
    • 2010-04-08
    • US12633899
    • 2009-12-09
    • Jun Ogawa
    • Jun Ogawa
    • G06F21/20G06F15/16
    • H04L63/0263H04L63/0236H04L63/1408
    • An apparatus relays packets transferred over a network and discards an attack packet detected among the packets. The apparatus includes: an inspection-packet outputting unit that outputs, when detecting the attack packet, an inspection packet in which a transmission-source address contained in the attack packet is set as a destination address and a destination address contained in the attack packet is set as a transmission-source address; a filter table storing unit that stores, when acquiring a response packet for the inspection packet, a transmission-source address, a destination address, and identification information of an interface, which has received the response packet, that are contained in the response packet, in a filter table in an associated manner; and a transfer control unit that determines whether to transfer a packet as a transfer object based on the filter table.
    • 一个设备中继通过网络传输的数据包,并丢弃在数据包中检测到的攻击包。 该装置包括:检查分组输出单元,当检测到攻击分组时,输出检测分组,其中包含在攻击分组中的发送源地址被设置为目的地地址,并且包含在攻击分组中的目的地地址是 设置为传输源地址; 滤波器表存储单元,其在获取所述检查包的响应包时,存储包含在所述响应包中的已经接收到所述响应包的接口的发送源地址,目的地地址和标识信息, 在相关联的过滤表中; 以及传送控制单元,其基于所述过滤表来确定是否传送作为传送对象的分组。
    • 25. 发明授权
    • Semiconductor integrated circuit and information processing system
    • 半导体集成电路和信息处理系统
    • US07668675B2
    • 2010-02-23
    • US12129179
    • 2008-05-29
    • Toshio TakitaJun OgawaYoshihiro Tamura
    • Toshio TakitaJun OgawaYoshihiro Tamura
    • G01R25/04
    • H03L7/08H03K5/19
    • In a semiconductor integrated circuit, a counter counts the number of high-speed clock signals that have been generated in a predetermined number of clock cycles of a low-speed clock signal. In synchronization with the low-speed clock signal, the semiconductor integrated circuit compares the counter value and a predetermined value, and judges whether the frequency of the high-speed clock signal has reaches a predetermined frequency. Since variations in the frequency become smaller as the oscillation of a high-speed oscillator stabilizes, the semiconductor integrated circuit detects that the oscillation is stable when the semiconductor integrated circuit has judged affirmatively a plurality of times.
    • 在半导体集成电路中,计数器对在低速时钟信号的预定数量的时钟周期中产生的高速时钟信号的数量进行计数。 与低速时钟信号同步,半导体集成电路将计数器值和预定值进行比较,判断高速时钟信号的频率是否达到预定频率。 由于随着高速振荡器的振荡稳定,频率的变化变小,当半导体集成电路多次判断时,半导体集成电路检测到振荡稳定。
    • 29. 发明申请
    • Frame relay device and frame inspection device
    • 框架中继装置和框架检查装置
    • US20070220615A1
    • 2007-09-20
    • US11487982
    • 2006-07-18
    • Jun Ogawa
    • Jun Ogawa
    • G06F17/30
    • H04L63/1416
    • Provided is a frame relay device that relays a frame that is transferred from a terminal to a network, the frame relay device including: a determination section that determines whether or not an inspection of security of the frame from the terminal is necessary before frame transmission from the terminal to the network starts; a decision section that decides that the inspection of the security is not conducted on the frame from the terminal in an inspection device, and decides that the inspection of the security is not conducted on the frame from the terminal in the inspection device in a case where the inspection of the security is necessary; and an output section that outputs an instruction based on the decision result to the inspection device.
    • 提供了一种帧中继装置,其将从终端传送到网络的帧进行中继,所述帧中继装置包括:确定部,其在帧发送之前确定是否需要对来自终端的帧的安全性进行检查 终端到网络启动; 决定部,其判定在检查装置中不在终端的框架上进行安全检查,并且在检查装置的终端的框架上判定不进行安全检查, 检查安全是必要的; 以及输出部,其将基于所述判定结果的指示输出到所述检查装置。