公开(公告)号：US06754215B1

公开(公告)日：2004-06-22

申请号：US09638878

申请日：2000-08-15

申请人： Toshiaki Arikawa ,  Motoo Nishihara ,  Michio Masuda

发明人： Toshiaki Arikawa ,  Motoo Nishihara ,  Michio Masuda

IPC分类号： H04L1256

CPC分类号： H04L47/2433 ,  H04L12/5601 ,  H04L47/24 ,  H04L47/50 ,  H04L2012/5651 ,  H04L2012/5679

摘要： In the packet scheduling device, the output class selection part is made to conduct the selective output of priority class, based on the weight count value calculated from a weight value corresponding to minimum guarantee bandwidth for each priority class and the amount of packet accumulated in each queue. The output class selection part operates so that if the weight count value is “0” or more, then the packet length of variable-length packet data to be output is subtracted from the current weight count value to give a renewed weight count value. On the other hand, if the weight count value is less than “0”, until reaching a predetermined repeat count (Cmax−1), the weight value of each priority class is added to the weight count value of all priority classes, and, when reaching the repeat count (Cmax−1), the weight value is added to the weight count value of all priority classes or replaced by half the weight value. Thereby, the weight count value is made to be more than “0”, and the values thus renewed are subject to the rule of round robin so as to select the priority class.

摘要翻译： 在分组调度装置中，使得输出类别选择部分基于从对应于每个优先级的最小保证带宽的权重值和每个优先级中累积的分组的数量计算的权重计数值来进行优先级类别的选择性输出 队列。 输出类别选择部分操作使得如果权重计数值为“0”或更大，则从当前权重计数值中减去要输出的可变长度分组数据的分组长度，以给出更新的权重计数值。 另一方面，如果重量计数值小于“0”，直到达到预定的重复计数（Cmax-1），则每个优先级的权重值被加到所有优先级的权重计数值中， 当达到重复计数（Cmax-1）时，重量值被加到所有优先级别的重量计数值中，或者被重量值的一半所取代。 由此，将权重计数值设定为大于“0”，由此更新的值进行循环规则，从而选择优先级。

公开(公告)号：US07130903B2

公开(公告)日：2006-10-31

申请号：US09752520

申请日：2001-01-03

申请人： Michio Masuda ,  Toshiaki Arikawa ,  Kenshin Yamada

发明人： Michio Masuda ,  Toshiaki Arikawa ,  Kenshin Yamada

IPC分类号： G06F15/173

CPC分类号： H04L69/16 ,  H04L69/161 ,  H04L2012/5651 ,  H04L2012/5667 ,  H04Q11/0478

摘要： A multi-layer class identifying communication apparatus, includes an input interface connected to input communication lines; a switch circuit; and an output interface connected to output communication lines. The input interface comprises an allocating section which determines a class identifier indicative of one of classes to which an IP packet belongs, from header data of the IP packet received through one of the input communication lines, and allocates an IP-QOS (Internet-Protocol-Quality-of-Service) code to the IP packet. The switch circuit selects one of the output communication lines based on a destination address of the IP packet, such that the IP packet is outputted from the output interface to the selected output communication output interface.

摘要翻译： 一种多层类识别通信装置，包括连接到输入通信线路的输入接口; 开关电路; 以及连接到输出通信线路的输出接口。 该输入接口包括一个分配部分，从通过一个输入通信线路接收到的IP分组的报头数据确定指示IP分组所属类别的类别标识，并分配IP-QOS（因特网协议 - 服务质量）代码到IP包。 开关电路基于IP分组的目的地地址选择输出通信线路之一，使得IP分组从输出接口输出到选择的输出通信输出接口。

公开(公告)号：US07609728B2

公开(公告)日：2009-10-27

申请号：US11282626

申请日：2005-11-21

申请人： Toshiaki Arikawa ,  Ryuuichi Ikematsu ,  Shigekazu Harada ,  Hajima Ishikawa ,  Takahide Sugita ,  Hidetoshi Shinoda

发明人： Toshiaki Arikawa ,  Ryuuichi Ikematsu ,  Shigekazu Harada ,  Hajima Ishikawa ,  Takahide Sugita ,  Hidetoshi Shinoda

IPC分类号： H04J3/06

CPC分类号： H04J14/0287 ,  H04J14/0283 ,  H04L1/22 ,  H04L2012/5627

摘要： Disclosed are the multiplex communication system and the method therefore. A fault detection part of a duplex switching device detects it as generation of fault when recognizable signals are not detected from a connected line within a prescribed time. When the fault detection part detects the generation of fault in the present system line, the line switching part switches the lines from the present line to the standby line to perform communication between a terminal device and another terminal device therethrough. Also, the fault detection part notifies the generation of fault to the other duplex switching device after a prescribed switching protection time has passed from the time of the fault detected by the fault detection part, so the selection of the lines becomes consistent.

摘要翻译： 因此，公开了多路复用通信系统和方法。 双工交换设备的故障检测部分在规定时间内从连接的线路检测到可识别的信号时，将其检测为故障的产生。 当故障检测部检测到本系统线路中的故障发生时，线路切换部将线路从当前线路切换到备用线路，从而进行终端装置与其他终端装置的通信。 此外，故障检测部在从故障检测部检测出的故障时刻经过规定的切换保护时间之后，向其他双工切换装置通知故障的生成，所以线的选择变得一致。

公开(公告)号：US07372804B2

公开(公告)日：2008-05-13

申请号：US10335951

申请日：2003-01-03

申请人： Toshiaki Arikawa ,  Ryuuichi Ikematsu ,  Shigekazu Harada ,  Hajime Ishikawa ,  Takahide Sugita ,  Hidetoshi Shinoda

发明人： Toshiaki Arikawa ,  Ryuuichi Ikematsu ,  Shigekazu Harada ,  Hajime Ishikawa ,  Takahide Sugita ,  Hidetoshi Shinoda

IPC分类号： G01R31/08

CPC分类号： H04J14/0287 ,  H04J14/0283 ,  H04L1/22 ,  H04L2012/5627

摘要： Disclosed are the multiplex communication system and the method therefore. A fault detection part of a duplex switching device detects it as generation of fault when recognizable signals are not detected from a connected line within a prescribed time. When the fault detection part detects the generation of fault in the present system line, the line switching part switches the lines from the present line to the standby line to perform communication between a terminal device and another terminal device therethrough. Also, the fault detection part notifies the generation of fault to the other duplex switching device after a prescribed switching protection time has passed from the time of the fault detected by the fault detection part, so the selection of the lines becomes consistent.

摘要翻译： 因此，公开了多路复用通信系统和方法。 双工交换设备的故障检测部分在规定时间内从连接的线路检测到可识别的信号时，将其检测为故障的产生。 当故障检测部检测到本系统线路中的故障发生时，线路切换部将线路从当前线路切换到备用线路，从而进行终端装置与其他终端装置的通信。 此外，故障检测部在从故障检测部检测出的故障时刻经过规定的切换保护时间之后，向其他双工切换装置通知故障的生成，所以线的选择变得一致。

公开(公告)号：US20070223457A1

公开(公告)日：2007-09-27

申请号：US11723924

申请日：2007-03-22

申请人： Toshiaki Arikawa ,  Kenshin Yamada

发明人： Toshiaki Arikawa ,  Kenshin Yamada

IPC分类号： H04L12/66

CPC分类号： H04L12/66

摘要： A packet switch scheduling apparatus in a packet communication apparatus is disclosed. Output schedulers select respective input lines, which are to be connected to a crossbar switch, for respective output lines. If previously selected input lines overlap each other, input schedulers select respective output lines for respective input lines, and output canceling information to those output schedulers which correspond to overlapping output lines that have not been selected. When the output schedulers are supplied with the canceling information, the output schedulers increments the value of request counters for the input lines corresponding to the input schedulers which have output the canceling information.

摘要翻译： 公开了一种分组通信装置中的分组交换机调度装置。 输出调度器为相应的输出线选择要连接到交叉开关的相应输入线。 如果先前选择的输入线彼此重叠，则输入调度器为相应的输入线选择相应的输出线，并且将取消信息输出到对应于未被选择的重叠输出线的那些输出调度器。 当向输出调度器提供消除信息时，输出调度器增加与已输出取消信息的输入调度器相对应的输入线的请求计数器的值。

公开(公告)号：US20060072923A1

公开(公告)日：2006-04-06

申请号：US11282626

申请日：2005-11-21

申请人： Toshiaki Arikawa ,  Ryuuichi Ikematsu ,  Shigekazu Harada ,  Hajime Ishikawa ,  Takahide Sugita ,  Hidetoshi Shinoda

发明人： Toshiaki Arikawa ,  Ryuuichi Ikematsu ,  Shigekazu Harada ,  Hajime Ishikawa ,  Takahide Sugita ,  Hidetoshi Shinoda

IPC分类号： H04B10/00

CPC分类号： H04J14/0287 ,  H04J14/0283 ,  H04L1/22 ,  H04L2012/5627

摘要： Disclosed are the multiplex communication system and the method therefore. A fault detection part of a duplex switching device detects it as generation of fault when recognizable signals are not detected from a connected line within a prescribed time. When the fault detection part detects the generation of fault in the present system line, the line switching part switches the lines from the present line to the standby line to perform communication between a terminal device and another terminal device therethrough. Also, the fault detection part notifies the generation of fault to the other duplex switching device after a prescribed switching protection time has passed from the time of the fault detected by the fault detection part, so the selection of the lines becomes consistent.