专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5682381A Wireless LAN system 失效
标题翻译：无线局域网系统
公开(公告)号：US5682381A
公开(公告)日：1997-10-28
申请号：US529278
申请日：1995-09-15
申请人： Osamu Sekihata , Hironobu Michiya , Kiyotaka Shikata
发明人： Osamu Sekihata , Hironobu Michiya , Kiyotaka Shikata
IPC分类号： H04L12/28 , H04B7/065
CPC分类号： H04W72/1231 , H04W24/00 , H04W72/12 , H04W74/0808 , H04W84/12
摘要： A master station detects the strength of a signal received from a slave station and, on the basis of the signal strength of the receiving signal, decides a transmission timing at which frame contained in the signal is to be sent to a backbone LAN. When the transmission timing decided arrives, the master station determines whether a carrier is present on the backbone LAN. The master station discards the frame from the slave station, and therefore does not send it, if the carrier is present. If the carrier is not present on the backbone LAN, the master station sends the frame to the backbone LAN. Thus, interference between adjacent cells does not occur even when each of a number of master stations send signals to and receive signals from a slave station by using the same channel.
摘要翻译：主站检测从从站接收的信号的强度，并且基于接收信号的信号强度，决定将信号中包含的帧发送到主干LAN的发送定时。当发送定时确定到达时，主站确定骨干LAN上是否存在载波。主站丢弃来自从站的帧，因此如果存在载波，则不发送。如果主干LAN上不存在运营商，则主站将帧发送到主干局域网。因此，即使当多个主站中的每一个通过使用相同的信道向从站发送信号并从其接收信号时，也不会发生相邻小区之间的干扰。

2. 发明授权

US5588003A LAN-WAN-LAN communication method, and apparatus for LAN-WAN connection 失效
标题翻译： LAN-WAN-LAN通信方式，LAN-WAN连接装置
公开(公告)号：US5588003A
公开(公告)日：1996-12-24
申请号：US198070
申请日：1994-02-17
申请人： Toshimitsu Ohba , Kiyotaka Shikata , Osamu Sekihata
发明人： Toshimitsu Ohba , Kiyotaka Shikata , Osamu Sekihata
IPC分类号： H04L12/46 , H04J3/16
CPC分类号： H04L12/4612
摘要： A LAN-WAN-LAN communication method and apparatus for performing communication between a LAN on a transmitting side and a LAN on a receiving side via a wide area network within limits of an allocated band includes a demultiplexer/multiplexer unit for demultiplexing data, which has been received from the LAN on the transmitting side, into data constituting the smallest units of information and transmitting this data via a plurality of lines. Then, data, which is sent to the receiving side via each line, is multiplexed on the receiving side and the multiplexed data is sent to the LAN on the receiving side. A traffic monitoring unit is provided for monitoring traffic between LANS. A band is obtained, which is required for communication between LANs based upon the traffic. Communication between LANs is performed by increasing, decreasing or maintaining the number of lines, which are used in communication between LANS, based upon the obtained band.
摘要翻译：一种LAN-WAN-LAN通信方法和装置，用于在所分配的频带的范围内，经由广域网在广播区域网络之间进行发送侧的LAN与接收侧的LAN之间的通信，包括解复用器/多路复用单元，从发送侧的LAN接收到构成最小信息单元的数据，经由多条线路发送该数据。然后，经由各个线路发送到接收侧的数据被多路复用在接收侧，并且多路复用数据被发送到接收侧的LAN。提供交通监控单元，用于监控LANS之间的通信量。获得了基于业务量的LAN之间的通信所需的频带。基于获得的频带，LAN之间的通信是通过增加，减少或维持在LANS之间的通信中使用的线数来执行的。

3. 发明授权

US5724346A Means for maintaining connectable access points owing to movement of a mobile station between cells in a wireless LAN system 失效
标题翻译：用于通过移动站在无线LAN系统中的小区之间移动来维持可连接接入点的装置
公开(公告)号：US5724346A
公开(公告)日：1998-03-03
申请号：US529525
申请日：1995-09-18
申请人： Naofumi Kobayashi , Kiyotaka Shikata , Osamu Sekihata
发明人： Naofumi Kobayashi , Kiyotaka Shikata , Osamu Sekihata
IPC分类号： H04L12/28 , H04J3/02
CPC分类号： H04W48/20 , H04W36/08
摘要： A mobile user station periodically searches for a connectable access point and stores the address of a connectable access point that has been found in a master-station management table. When the mobile user station moves from one cell to another under these conditions, the state of communication with the old access point deteriorates. When the state of communication with the old access point deteriorates to such a degree that it becomes necessary for the mobile user station to connect to a new access point, the mobile user station sends a connection request to the access point stored in the master-station management table and performs communication via the new access point. As a result, when connection to a new access point becomes necessary owing to movement of the mobile user station between cells, the changeover between access points can be performed quickly without searching for an access point.
摘要翻译：移动用户站周期性地搜索可连接接入点，并存储在主站管理表中已经找到的可连接接入点的地址。当移动用户站在这些条件下从一个小区移动到另一个小区时，与旧接入点的通信状态恶化。当与旧接入点的通信状态恶化到移动用户站需要连接到新接入点的程度时，移动用户站向存储在主站中的接入点发送连接请求管理表，并通过新的接入点进行通信。结果，由于移动用户站在小区之间的移动，当连接到新的接入点变得必要时，可以快速地执行接入点之间的切换而不搜索接入点。

4. 发明授权

US5375121A ATM cell assembling and disassembling system and method 失效
标题翻译： ATM信元组装拆解系统及方法
公开(公告)号：US5375121A
公开(公告)日：1994-12-20
申请号：US227471
申请日：1994-04-14
申请人： Tetsuo Nishino , Susumu Eda , Ryuji Hyodo , Katsumi Oomuro , Osamu Sekihata , Kenji Tanaka , Hiroyuki Hatta , Reiko Norizuki , Nakaba Yuhara
发明人： Tetsuo Nishino , Susumu Eda , Ryuji Hyodo , Katsumi Oomuro , Osamu Sekihata , Kenji Tanaka , Hiroyuki Hatta , Reiko Norizuki , Nakaba Yuhara
IPC分类号： H04L12/951 , H04Q11/04 , H04J3/26 , H04L12/56
CPC分类号： H04L12/5601 , H04Q11/0478 , H04L2012/5638 , H04L2012/5646 , H04L2012/5652 , H04L49/50 , H04L49/501 , H04L49/55
摘要： In an ATM cell assembling and disassembling method for a communications network having first and second communications nodes, HDLC data is transferred from a first terminal to the first communications node via a first transmission line, the HDLC data conforming to an HDLC format. It starts to assemble, in the first communications node, at least one cell from the HDLC data when data which is contained in the HDLC data and equal to one cell has been received. Then the above at least one cell of ATM data is transferred from the first communications node to the second communications node. Disassembly is started, in the second communications node, of the above at least one cell of ATM data to thereby generate original HDLC data when a fluctuation compensation time has elapsed after a first cell of ATM data among the above-mentioned at least one cell of ATM data is received by the second communications node. The fluctuation compensation time is based on a maximum fluctuation time of a route connecting the first and second communications nodes to each other as well as a bit rate of the first transmission line. Finally, the original HDLC data is transferred to a second terminal from the second communications node via a second transmission line.
摘要翻译：在具有第一通信节点和第二通信节点的通信网络的ATM信元组装和拆卸方法中，HDLC数据经由第一传输线路从第一终端传送到第一通信节点，HDLC数据符合HDLC格式。当接收到包含在HDLC数据中并且等于一个小区的数据时，它在第一通信节点中开始组合来自HDLC数据的至少一个小区。然后将上述至少一个ATM数据单元从第一通信节点传送到第二通信节点。在第二通信节点中，在ATM数据的上述至少一个小区中开始解码，从而在上述至少一个小区中的ATM数据的第一小区之后经过了波动补偿时间后生成原始HDLC数据 ATM数据由第二通信节点接收。波动补偿时间基于将第一通信节点和第二通信节点彼此连接的路由的最大波动时间以及第一传输线路的比特率。最后，原始HDLC数据经由第二传输线从第二通信节点传送到第二终端。

5. 发明授权

US5357510A Apparatus and a method for supervising and controlling ATM traffic 失效
标题翻译： ATM流量监控与控制方法
公开(公告)号：US5357510A
公开(公告)日：1994-10-18
申请号：US19835
申请日：1993-02-19
申请人： Reiko Norizuki , Ryuji Hyodo , Kenji Tanaka , Osamu Sekihata , Hiroyuki Hatta , Susumu Eda , Katsumi Oomuro
发明人： Reiko Norizuki , Ryuji Hyodo , Kenji Tanaka , Osamu Sekihata , Hiroyuki Hatta , Susumu Eda , Katsumi Oomuro
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L12/5602 , H04L49/3081 , H04Q11/0478 , H04L2012/561 , H04L2012/5619 , H04L2012/5625 , H04L2012/5636 , H04L2012/5652
摘要： An apparatus for supervising and controlling ATM traffic, and which collects traffic information, comprises a cell detecting unit for outputting a cell detecting signal whenever detecting a user information cell flowing through an ATM switch unit, an idle cell detecting unit for outputting an idle cell detecting signal whenever detecting an idle cell flowing through an ATM switch unit, a cell counting unit for counting the cell detecting signals output from the cell detecting unit, an idle cell counting unit for counting the idle cell detecting signals output from the idle cell detecting unit, an idle cell rate detecting unit for detecting an idle cell rate from both counts output from the cell counting unit and the idle cell counting unit at regular intervals, and a control unit for performing the operation of traffic control in accordance with the idle cell rate provided from the idle cell rate detecting unit at regular intervals.
摘要翻译：一种用于监视和控制ATM业务并且收集业务信息的装置，包括：小区检测单元，用于每当检测到通过ATM交换单元流动的用户信息单元时输出小区检测信号;空闲小区检测单元，用于输出空闲小区检测每当检测到通过ATM开关单元流动的空闲单元时，就产生信号;单元计数单元，用于对从单元检测单元输出的单元检测信号进行计数;空闲单元计数单元，用于对从空闲单元检测单元输出的空闲单元检测信号进行计数，空闲单元速率检测单元，用于以规则的间隔从所述单元计数单元和所述空闲单元计数单元输出的两个计数中检测空闲单元速率;以及控制单元，用于根据所提供的空闲单元速率执行业务控制操作从空闲信元速率检测单元以规则的间隔。

6. 发明申请

US20090147675A1 RING SWITCHOVER METHOD 审中-公开
标题翻译：环形开关方法
公开(公告)号：US20090147675A1
公开(公告)日：2009-06-11
申请号：US12369171
申请日：2009-02-11
申请人： Osamu Sekihata
发明人： Osamu Sekihata
IPC分类号： G06F11/00
CPC分类号： H04L12/42
摘要： A fast ring switchover is enabled in packet level processing at the time of ring configuration, and as a result, a system switchover function can be implemented in an Ethernet switch or the like by a ring switchover method in a network constituted of layer 2 switches connected in a ring shape, each layer 2 switch having a path control function and a failure detection function. The ring switchover method includes the steps of providing in each layer 2 switch an address learning table in which a Media Access Control (MAC) address and a corresponding port are stored; on detection of a link failure between mutually neighboring layer 2 switches, transmitting a failure notification frame packet from each neighboring layer 2 switch; and in the layer 2 switch having received the failure notification frame, recording a Media Access Control (MAC) address of said layer 2 switch into the failure notification frame, and transferring the failure notification frame to a neighboring layer 2 switch.
摘要翻译：在环形配置时，在数据包级处理中启用快速环切换，从而可以通过环形切换方式在以太网交换机等中实现系统切换功能，该网络由连接的二层交换机组成的网络在环形状中，每个层2开关具有路径控制功能和故障检测功能。环切换方法包括以下步骤：在每层2交换机中提供存储介质访问控制（MAC）地址和对应端口的地址学习表; 在相邻相邻层2交换机之间检测到链路故障，从每个相邻层2交换机发送故障通知帧分组; 并且在已经接收到故障通知帧的层2交换机中，将所述层2交换机的媒体访问控制（MAC）地址记录到故障通知帧中，并将故障通知帧传送到相邻层2交换机。

7. 发明授权

US07518988B2 Ring switchover method 有权
标题翻译：环切换方式
公开(公告)号：US07518988B2
公开(公告)日：2009-04-14
申请号：US10692066
申请日：2003-10-23
申请人： Osamu Sekihata
发明人： Osamu Sekihata
IPC分类号： H04L12/26
CPC分类号： H04L12/42
摘要： A fast ring switchover is enabled in packet level processing at the time of ring configuration, and as a result, a system switchover function can be implemented in an Ethernet switch or the like by a ring switchover method in a network constituted of layer 2 switches connected in a ring shape, each layer 2 switch having a path control function and a failure detection function. The ring switchover method includes the steps of providing in each layer 2 switch an address learning table in which a Media Access Control (MAC) address and a corresponding port are stored; on detection of a link failure between mutually neighboring layer 2 switches, transmitting a failure notification frame packet from each neighboring layer 2 switch; and in the layer 2 switch having received the failure notification frame, recording a Media Access Control (MAC) address of said layer 2 switch into the failure notification frame, and transferring the failure notification frame to a neighboring layer 2 switch.
摘要翻译：在环形配置时，在数据包级处理中启用快速环切换，从而可以通过环形切换方式在以太网交换机等中实现系统切换功能，该网络由连接的二层交换机组成的网络在环形状中，每个层2开关具有路径控制功能和故障检测功能。环切换方法包括以下步骤：在每层2交换机中提供存储介质访问控制（MAC）地址和对应端口的地址学习表; 在相邻相邻层2交换机之间检测到链路故障，从每个相邻层2交换机发送故障通知帧分组; 并且在已经接收到故障通知帧的层2交换机中，将所述层2交换机的媒体访问控制（MAC）地址记录到故障通知帧中，并将故障通知帧传送到相邻层2交换机。

8. 发明授权

US5715239A ATM multiplex transmission system having test equipment 失效
标题翻译： ATM多路传输系统具有测试设备
公开(公告)号：US5715239A
公开(公告)日：1998-02-03
申请号：US604368
申请日：1996-02-21
申请人： Ryuji Hyodo , Tetsuo Nishino , Susumu Eda , Katsumi Oomuro , Kenji Tanaka , Osamu Sekihata , Hiroyuki Hatta , Reiko Furuya
发明人： Ryuji Hyodo , Tetsuo Nishino , Susumu Eda , Katsumi Oomuro , Kenji Tanaka , Osamu Sekihata , Hiroyuki Hatta , Reiko Furuya
IPC分类号： H04L12/26 , H04L12/28 , H04L12/70 , H04Q11/04 , H04J3/14
CPC分类号： H04L12/5601 , H04L49/153 , H04L49/1553 , H04L49/255 , H04L49/3081 , H04Q11/0478 , H04L2012/5628 , H04L2012/5652 , H04L2012/5653 , H04L2012/5681
摘要： An ATM multiplex transmission system including AAL processing units, an ATM cross connection processing unit, and a plurality of lines connected to the same, wherein the system has test equipment formed in it, the test equipment being formed as a particular cell generating unit and a routing information setting unit in at least one of the line corresponding points which the ATM cross connection processing unit has at the portions connecting with the lines. When a routing test is performed in the system, the VPI and the VCI designating the route are given from the outside as the routing information.
摘要翻译：一种ATM多路复用传输系统，包括AAL处理单元，ATM交叉连接处理单元和与之相连的多条线路，其中系统具有形成在其中的测试设备，测试设备形成为特定小区生成单元和所述路由信息设定单元在所述ATM交叉连接处理单元在与所述线路连接的部分处具有的线对应点中的至少一个中。当在系统中进行路由测试时，VPI和指定路由的VCI作为路由信息从外部给出。

9. 发明授权

US5608719A ATM multiplex transmission system having test equipment 失效
标题翻译： ATM多路传输系统具有测试设备
公开(公告)号：US5608719A
公开(公告)日：1997-03-04
申请号：US447639
申请日：1995-05-23
申请人： Ryuji Hyodo , Susumu Eda , Katsumi Oomuro , Osamu Sekihata , Kenji Tanaka , Hiroyuki Hatta , Reiko Norizuki
发明人： Ryuji Hyodo , Susumu Eda , Katsumi Oomuro , Osamu Sekihata , Kenji Tanaka , Hiroyuki Hatta , Reiko Norizuki
IPC分类号： H04J3/00 , H04J3/14 , H04L12/26 , H04L12/70 , H04Q11/04 , H04L12/56 , H04Q1/20
CPC分类号： H04L12/5601 , H04L49/1576 , H04L49/3081 , H04Q11/0478 , H04L2012/5652 , H04L2012/5653 , H04L2012/5681
摘要： An ATM multiplex transmission system including an ATM adaptation layer (AAL) processing unit, an ATM cross connection processing unit having a switch and FIFO memories connected to the incoming and outgoing sides, and dummy load cell generating units which forcibly write dummy load cells in the incoming FIFO memories or outgoing FIFO memories, the writing of the dummy load cells being used to execute a load test on the FIFO memories.
摘要翻译：一种ATM多路复用传输系统，包括ATM适配层（AAL）处理单元，具有连接到入射侧和出射侧的开关和FIFO存储器的ATM交叉连接处理单元，以及强制性地将虚拟称重传感器写入输入FIFO存储器或输出FIFO存储器，用于对FIFO存储器执行负载测试的伪负载单元的写入。

10. 发明授权

US5287349A ATM exchange system 失效
标题翻译： ATM交换系统
公开(公告)号：US5287349A
公开(公告)日：1994-02-15
申请号：US831791
申请日：1992-02-05
申请人： Ryuji Hyodo , Susumu Eda , Kenji Tanaka , Katsumi Oomuro , Osamu Sekihata , Hiroyuki Hatta , Reiko Furuya , Hirokazu Minou , Tetsuo Nishino , Eisuke Iwabuchi
发明人： Ryuji Hyodo , Susumu Eda , Kenji Tanaka , Katsumi Oomuro , Osamu Sekihata , Hiroyuki Hatta , Reiko Furuya , Hirokazu Minou , Tetsuo Nishino , Eisuke Iwabuchi
IPC分类号： H04L12/861 , H04L12/951 , H04L12/56
CPC分类号： H04L12/5601 , H04L49/252 , H04L2012/5625 , H04L2012/5647 , H04L2012/5649 , H04L2012/5651 , H04L49/254
摘要： An ATM exchange system includes a unit for detecting management cells from among multiplexed input ATM cells, and a path creating unit dedicated to the detected management cell. The path creating unit is activated each time the management cell detecting unit detects the management cell, and thus the management cell is transferred to the corresponding outgoing line without loss in the exchange, and can be transferred thereto before a user ATM cell.
摘要翻译： ATM交换系统包括用于检测多路复用输入ATM信元中的管理信元的单元和专用于检测到的管理单元的路径创建单元。每当管理单元检测单元检测到管理单元时，路径创建单元被激活，并且因此管理单元被传送到相应的输出线而不会在交换中丢失，并且可以在用户ATM信元之前被传送到其中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式