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11. 发明授权

US08488630B2 Transmission device and transmitting method 失效
标题翻译：传输设备和传输方式
公开(公告)号：US08488630B2
公开(公告)日：2013-07-16
申请号：US13089355
申请日：2011-04-19
申请人： Akihiro Hata
发明人： Akihiro Hata
IPC分类号： H04L12/56
CPC分类号： H04L12/4633 , H04L1/0061 , H04L49/00 , H04L69/324
摘要： A transmission device which capsules and decapsules data of a frame and/or a packet includes a decapsuling circuit, wherein the decapsuling circuit includes a bit de-stuff processor configured to perform bit de-stuffing processing on an input data; a byte de-stuff processor configured to perform byte de-stuffing processing on duplicated data of the input data; a check processor configured to perform frame check sequence (FCS) processing on output from the bit de-stuff processor and the byte de-stuff processor; and a mode determination circuit configured to determine a stuffing mode of an opposite transmission device, based on a code conversion result from the bit de-stuff processor and the byte de-stuff processor and the stuffing mode in which the check processor detects the input data with a normal FCS.
摘要翻译：一种传输装置，其包含一个帧和/或一个分组的胶囊和数据包的解封装数据包括一个解封装电路，其中该解封装电路包括一个配置成对一个输入数据进行位去填充处理的位去处理处理器; 一个字节解码处理器，被配置为对输入数据的复制数据执行字节解压缩处理; 配置为对来自所述位解除处理器和所述字节解除处理器的输出执行帧校验序列（FCS）处理的检验处理器; 以及模式确定电路，其被配置为基于来自所述比特解除处理器和所述字节解除处理器的代码转换结果以及所述检查处理器检测到所述输入数据的填充模式来确定相对传输装置的填充模式与正常的FCS。

12. 发明授权

US08432925B2 Apparatus and method for controlling buffering of an arrival packet 有权
标题翻译：用于控制到达分组的缓冲的装置和方法
公开(公告)号：US08432925B2
公开(公告)日：2013-04-30
申请号：US12404502
申请日：2009-03-16
申请人： Kazuto Nishimura , Hiroshi Tomonaga , Akihiro Hata , Masamichi Kasa
发明人： Kazuto Nishimura , Hiroshi Tomonaga , Akihiro Hata , Masamichi Kasa
IPC分类号： H04L12/56
CPC分类号： H04L47/283 , H04L47/10 , H04L47/32 , H04L49/505
摘要： An apparatus for controlling buffering of an arrival packet. The apparatus includes a packet buffer for temporarily storing each of one or more packets to be transmitted in association with an arrival time thereof, and a packet discard section for determining an arrival packet to be discarded or to be stored in the packet buffer, based on a discard condition defined by using a packet residence time that is calculated on the basis of one or more residence times of one or more packets staying in the packet buffer, wherein the arrival packet is defined as a packet that has newly arrived at the apparatus.
摘要翻译：一种用于控制到达分组的缓冲的装置。该装置包括：分组缓冲器，用于临时存储与其到达时间相关联的要发送的一个或多个分组中的每一个;以及分组丢弃部分，用于基于丢弃或要存储在分组缓冲器中的到达分组，基于通过使用基于停留在分组缓冲器中的一个或多个分组的一个或多个停留时间计算的分组停留时间定义的丢弃条件，其中到达分组被定义为新到达该设备的分组。

13. 发明授权

US08306045B2 Packet forwarding apparatus and method for discarding packets 有权
标题翻译：用于丢弃分组的分组转发装置和方法
公开(公告)号：US08306045B2
公开(公告)日：2012-11-06
申请号：US12361655
申请日：2009-01-29
申请人： Akihiro Hata , Hiroshi Tomonaga , Katsumi Imamura
发明人： Akihiro Hata , Hiroshi Tomonaga , Katsumi Imamura
IPC分类号： G06F3/00 , G06F5/00 , H04L12/28 , H04L12/56
CPC分类号： H04L47/10 , H04L47/283 , H04L47/32 , H04L49/254 , H04L49/503 , H04L49/90 , H04L49/9047 , H04L49/9078
摘要： The packet forwarding apparatus of the present invention includes a packet buffer for temporarily storing packets to be forwarded, a timer for measuring the time of every predetermined unit period, a plurality of first queues corresponding to each of a plurality of address groups that form the packet buffer, a plurality of second queues that are provided corresponding to the property of the packets, a first controller for executing the writing of the packets, and a second controller for executing the discarding of the packets. According to this invention, through managing the first queues and the second queues, packets in the packet buffer can be discarded without the packets being read from the packet buffer.
摘要翻译：本发明的分组转发装置包括用于临时存储要转发的分组的分组缓冲器，用于测量每个预定单位周期的时间的定时器，对应于形成分组的多个地址组中的每一个的多个第一队列缓冲器，对应于分组的属性提供的多个第二队列，用于执行分组的写入的第一控制器，以及用于执行丢弃分组的第二控制器。根据本发明，通过管理第一队列和第二队列，可以丢弃分组缓冲器中的分组，而不从分组缓冲器读取分组。

14. 发明申请

US20110268136A1 TRANSMISSION DEVICE AND TRANSMITTING METHOD 失效
标题翻译：传输设备和传输方法
公开(公告)号：US20110268136A1
公开(公告)日：2011-11-03
申请号：US13089355
申请日：2011-04-19
申请人： Akihiro Hata
发明人： Akihiro Hata
IPC分类号： H04L12/56
CPC分类号： H04L12/4633 , H04L1/0061 , H04L49/00 , H04L69/324
摘要： A transmission device which capsules and decapsules data of a frame and/or a packet includes a decapsuling circuit, wherein the decapsuling circuit includes a bit de-stuff processor configured to perform bit de-stuffing processing on an input data; a byte de-stuff processor configured to perform byte de-stuffing processing on duplicated data of the input data; a check processor configured to perform frame check sequence (FCS) processing on output from the bit de-stuff processor and the byte de-stuff processor; and a mode determination circuit configured to determine a stuffing mode of an opposite transmission device, based on a code conversion result from the bit de-stuff processor and the byte de-stuff processor and the stuffing mode in which the check processor detects the input data with a normal FCS.
摘要翻译：一种传输装置，其包含一个帧和/或一个分组的胶囊和数据包的解封装数据包括一个解封装电路，其中该解封装电路包括一个配置成对一个输入数据进行位去填充处理的位去处理处理器; 一个字节解码处理器，被配置为对输入数据的复制数据执行字节解压缩处理; 配置为对来自所述位解除处理器和所述字节解除处理器的输出执行帧校验序列（FCS）处理的检验处理器; 以及模式确定电路，其被配置为基于来自所述比特解除处理器和所述字节解除处理器的代码转换结果以及所述检查处理器检测到所述输入数据的填充模式来确定相对传输装置的填充模式与正常的FCS。

15. 发明授权

US08422366B2 Data transmission device 有权
标题翻译：数据传输设备
公开(公告)号：US08422366B2
公开(公告)日：2013-04-16
申请号：US12783754
申请日：2010-05-20
申请人： Masaki Hirota , Hiroshi Tomonaga , Akihiro Hata , Shigeyuki Kobayashi
发明人： Masaki Hirota , Hiroshi Tomonaga , Akihiro Hata , Shigeyuki Kobayashi
IPC分类号： H04L12/28 , H04L12/56 , G01R31/08 , G06F11/00 , G08C15/00
CPC分类号： H04L47/125 , H04L49/1523 , H04L49/557
摘要： In a data transmission device and method provided with duplexed switches outputting frames in the order of input for continuing the communication without instantaneous interruptions even though one of the switches is faulted, input interfaces generate frames in which every time data is inputted, input order information indicating the input order is added to the data together with unique information of each input interface and providing the frame generated to the switches in parallel. At least one output interface sequentially stores the frames outputted from the switches for every unique information and selects a first arrived frame among the frames stored with same input order information.
摘要翻译：在具有双工开关的数据传输装置和方法中，即使其中一个开关发生故障，以输入顺序输出框架以继续通信而没有瞬时中断，输入接口产生每次输入数据的帧，输入指令信息将输入顺序与每个输入接口的唯一信息一起添加到数据中，并且并行地向交换机提供生成的帧。至少一个输出接口对于每个唯一信息顺序地存储从开关输出的帧，并且选择在具有相同输入顺序信息存储的帧中的第一到达帧。

16. 发明申请

US20090257441A1 PACKET FORWARDING APPARATUS AND METHOD FOR DISCARDING PACKETS 有权
标题翻译：分组前向装置和分组分组的方法
公开(公告)号：US20090257441A1
公开(公告)日：2009-10-15
申请号：US12361655
申请日：2009-01-29
申请人： Akihiro Hata , Hiroshi Tomonaga , Katsumi Imamura
发明人： Akihiro Hata , Hiroshi Tomonaga , Katsumi Imamura
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/283 , H04L47/32 , H04L49/254 , H04L49/503 , H04L49/90 , H04L49/9047 , H04L49/9078
摘要： The packet forwarding apparatus of the present invention includes a packet buffer for temporarily storing packets to be forwarded, a timer for measuring the time of every predetermined unit period, a plurality of first queues corresponding to each of a plurality of address groups that form the packet buffer, a plurality of second queues that are provided corresponding to the property of the packets, a first controller for executing the writing of the packets, and a second controller for executing the discarding of the packets. According to this invention, through managing the first queues and the second queues, packets in the packet buffer can be discarded without the packets being read from the packet buffer.
摘要翻译：本发明的分组转发装置包括用于临时存储要转发的分组的分组缓冲器，用于测量每个预定单位周期的时间的定时器，对应于形成分组的多个地址组中的每一个的多个第一队列缓冲器，对应于分组的属性提供的多个第二队列，用于执行分组的写入的第一控制器，以及用于执行丢弃分组的第二控制器。根据本发明，通过管理第一队列和第二队列，可以丢弃分组缓冲器中的分组，而不从分组缓冲器读取分组。

17. 发明授权

US07590076B2 Switching apparatus 有权
标题翻译：开关装置
公开(公告)号：US07590076B2
公开(公告)日：2009-09-15
申请号：US10733187
申请日：2003-12-11
申请人： Satoshi Sumino , Kazuto Nishimura , Akihiro Hata
发明人： Satoshi Sumino , Kazuto Nishimura , Akihiro Hata
IPC分类号： H04L12/28
CPC分类号： H04L45/02
摘要： A switching apparatus for learning a source address set in a packet in an address learning table and delivering a packet on the basis of an address learned in the address learning table includes an address learning unit for limiting a number of learned addresses such that a number of learned addresses for each user group in the address learning table is equal to or less than an address learning upper limit value for the user group.
摘要翻译：一种用于学习在地址学习表中的分组中设置的源地址并基于在地址学习表中学习的地址传送分组的切换装置，包括：地址学习单元，用于限制学习地址的数量，地址学习表中的每个用户组的学习地址等于或小于用户组的地址学习上限值。

18. 发明申请

US20080151897A1 Packet Relay Method and Device 有权
标题翻译：分组中继方法和设备
公开(公告)号：US20080151897A1
公开(公告)日：2008-06-26
申请号：US11959615
申请日：2007-12-19
申请人： Satoshi Nemoto , Hiroshi Tomonaga , Akihiro Hata
发明人： Satoshi Nemoto , Hiroshi Tomonaga , Akihiro Hata
IPC分类号： H04L12/56
CPC分类号： H04L49/552 , H04L49/1515 , H04L49/205
摘要： In a packet relay method and device which can reduce a congestion of switching even when segment data are concentrated, segment data dividing portions respectively extract a destination address and a packet length from received packets, divide the packets into predetermined length data based on each packet length, and generates location information indicating locations in the packets respectively for the data. The segment data dividing portions add segment headers in which the location information, the destination address, and an address of its own device as a source address are set are added to each of the data, generate segment data, and provide the segment data to switches within a switch card in parallel.
摘要翻译：在分组中继方法和装置中，即使在分段数据集中的情况下也可以减少切换拥塞，分段数据分割部分从接收到的分组分别提取目的地址和分组长度，根据每个分组长度将分组划分成预定长度的数据并分别产生指示数据包中的位置的位置信息。分段数据分割部分添加分段报头，其中设置作为源地址的其自身设备的位置信息，目的地址和地址被设置为每个数据，生成分段数据，并将分段数据提供给切换在开关卡内并行。

19. 发明申请

US20070086470A1 Queue selection method and scheduling device 有权
标题翻译：队列选择方法和调度设备
公开(公告)号：US20070086470A1
公开(公告)日：2007-04-19
申请号：US11362522
申请日：2006-02-27
申请人： Mami Sekido , Akihiro Hata , Satoshi Nishimura , Yuuji Kubo
发明人： Mami Sekido , Akihiro Hata , Satoshi Nishimura , Yuuji Kubo
IPC分类号： H04L12/56
CPC分类号： H04L49/90 , H04L47/50 , H04L47/60 , H04L49/9047
摘要： A queue selection method for controlling selection of many queues without increasing the circuit scale is provided. Queues are organized into groups, and each group is created as a tree structure with a plurality of steps, and a queue is selected by selecting a group of each step. By this, even if the number of queues is enormous, it is sufficient to provide registers for managing the presence of packets only for the number of groups selected in each step, and it becomes unnecessary to provide registers for all of the queues, so an increase of registers can be suppressed even if the number of queues increases. It is preferable that group selection in each step is performed in parallel independently from pipeline processing so as to maintain high-speed operation.
摘要翻译：提供了一种用于在不增加电路规模的情况下控制许多队列的选择的队列选择方法。队列被组织成组，并且每个组被创建为具有多个步骤的树结构，并且通过选择每个步骤的组来选择队列。由此，即使队列数量庞大，仅仅为每个步骤中选择的组数量提供用于管理数据包存在的寄存器就足够了，因此不必为所有队列提供寄存器，因此，即使队列数量增加，也可以抑制寄存器的增加。优选地，独立于流水线处理并行地执行每个步骤中的组选择，以便保持高速操作。

20. 发明申请

US20050100020A1 Packet switching device 审中-公开
标题翻译：分组交换设备
公开(公告)号：US20050100020A1
公开(公告)日：2005-05-12
申请号：US10826802
申请日：2004-04-16
申请人： Akihiro Hata , Satoshi Sumino , Kazuto Nishimura
发明人： Akihiro Hata , Satoshi Sumino , Kazuto Nishimura
IPC分类号： H04L12/801 , H04L12/823 , H04L12/851 , H04L12/911 , H04L29/06 , H04L12/56
CPC分类号： H04L47/10 , H04L47/12 , H04L47/13 , H04L47/15 , H04L47/2441 , H04L47/2458 , H04L47/30 , H04L49/201 , H04L49/351 , H04L49/354 , H04L63/1441
摘要： A packet switching device for receiving and forwarding a packet, comprises a counter for indicating a storage capacity of specified packets in stored packets, and means for starting a forwarding restriction of the specified packets if the counter exceeds a preset forwarding restriction start threshold value. The forwarding restriction is a process of, e.g., lowering a priority of the specified packets in the received packets. The packet switching device further comprises means for canceling the forwarding restriction when the counter becomes smaller than a preset forwarding restriction terminating threshold value.
摘要翻译：一种用于接收和转发分组的分组交换设备，包括：用于指示所存储的分组中指定分组的存储容量的计数器;以及如果所述计数器超过预设的转发限制开始阈值，则启动所述指定分组的转发限制的装置。转发限制是例如降低接收到的分组中的指定分组的优先级的过程。分组交换设备还包括当计数器变得小于预设的转发限制终止阈值时取消转发限制的装置。

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