公开(公告)号：US5706430A

公开(公告)日：1998-01-06

申请号：US355682

申请日：1994-12-14

申请人： Emiko Yanagisawa ,  Minoru Koizumi ,  Tetsuhiko Hirata ,  Kenji Kataoka ,  Osamu Takada ,  Hirashi Wataya

发明人： Emiko Yanagisawa ,  Minoru Koizumi ,  Tetsuhiko Hirata ,  Kenji Kataoka ,  Osamu Takada ,  Hirashi Wataya

IPC分类号： G06F15/16 ,  G06F13/00 ,  G06F15/163 ,  G06F15/177 ,  H04L12/413 ,  H04L12/417

CPC分类号： H04L12/417 ,  Y10S707/99952

摘要： A distributed memory computer system periodically performs memory copy among a plurality of computers by using general-purpose communication control devices and a transmission line of the CSMA/CD type. A master computer periodically generates a synchronizing packet, and transmits data for memory copy and normal data in a time slot immediately after the transmission of the synchronizing packet. Each computer other than the master computer transmits the data for memory copy and the normal data in its own time slot after the elapse of a predetermined time. The respective computers complete their transmissions within predetermined times. Since the time slots are assigned to the respective computers, the number of computers which may compete with each other on a transmission line can be restricted and each computer can be assured a periodic opportunity to transmit data.

摘要翻译： 分布式存储器计算机系统通过使用通用通信控制设备和CSMA / CD类型的传输线来在多个计算机之间周期性地执行存储器复制。 主计算机周期性地产生同步分组，并且在发送同步分组之后的时隙中发送用于存储器复制和正常数据的数据。 除了主计算机以外的每个计算机在经过预定时间之后将其存储在其自己的时隙中，发送用于存储器复制的数据和正常数据。 相应的计算机在预定时间内完成传输。 由于时隙被分配给相应的计算机，因此可以限制可以在传输线上彼此竞争的计算机的数量，并且可以确保每台计算机能够周期性地发送数据。

公开(公告)号：US5727149A

公开(公告)日：1998-03-10

申请号：US576336

申请日：1995-12-21

申请人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Emiko Yanagisawa ,  Osamu Takada ,  Hiroshi Wataya

发明人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Emiko Yanagisawa ,  Osamu Takada ,  Hiroshi Wataya

IPC分类号： G06F13/00 ,  G06F13/12 ,  H04L12/40 ,  G06F13/372

CPC分类号： H04L49/9063 ,  G06F13/128 ,  H04L49/90

摘要： A network interface apparatus connected between a LAN adaptor possessed by a computer and a transceiver provided on a network includes a buffer memory for storing data, a first control circuit for communicating with the LAN adaptor, a second control circuit for communicating with the transceiver, and a processor for controlling the first and second control circuits to control the transfer of data between the LAN adaptor and the transceiver. The processor causes the buffer memory to store transmit data transmitted from the LAN adaptor and transmits the stored transmit data in the buffer memory to the transceiver in a transmission time zone which is allotted beforehand. The transmission time zone is determined by the processor on the basis of the reception of a synchronizing packet which is transferred on the network. Receive data received from the transceiver is selected by the processor so that only the selected receive data is sent to the LAN adaptor. A reference for the selection may include a protocol type, a port number on TCP/IP or the like.

摘要翻译： 连接在由计算机拥有的LAN适配器和设置在网络上的收发器之间的网络接口装置包括用于存储数据的缓冲存储器，用于与LAN适配器通信的第一控制电路，用于与收发器通信的第二控制电路，以及 用于控制第一和第二控制电路以控制LAN适配器和收发器之间的数据传送的处理器。 处理器使得缓冲存储器存储从LAN适配器发送的发送数据，并将预先分配的传输时区中将存储的缓冲存储器中的发送数据发送到收发器。 传输时区由处理器基于在网络上传送的同步分组的接收来确定。 从处理器选择从收发器接收的接收数据，使得只有选定的接收数据被发送到LAN适配器。 用于选择的参考可以包括协议类型，TCP / IP等上的端口号。

公开(公告)号：US5678060A

公开(公告)日：1997-10-14

申请号：US331106

申请日：1994-10-28

申请人： Tatsuya Yokoyama ,  Tetsuhiko Hirata ,  Mika Mizutani ,  Osamu Takada

发明人： Tatsuya Yokoyama ,  Tetsuhiko Hirata ,  Mika Mizutani ,  Osamu Takada

IPC分类号： G06F13/00 ,  H04L12/931 ,  H04L12/951 ,  H04L29/06 ,  G06F3/00 ,  G06F15/16 ,  G06F15/56

CPC分类号： H04L12/5601 ,  H04L2012/5615 ,  H04L2012/5616 ,  H04L2012/563 ,  H04L2012/5652

摘要： Communication control equipment for connecting a computer system to a network and supporting the computer system to set a plurality of connections on the network and perform parallel communication between computers. The communication control equipment includes an interface circuit for the computer system, a microprocessor for performing communication control processing, a local memory for storing programs and work data, a buffer memory for temporarily storing transmission and reception data, a DMA transfer unit for performing data transfer between a memory in the computer system and the buffer memory and protocol header transfer between the buffer memory and the local memory, a network controller for controlling transmission and reception of data to the network, and a header retrieval unit for predicting a protocol header of a frame to be next received in correspondence to each of a plurality of connections and retrieving a header corresponding to a protocol header of a received frame transferred by the DMA transfer unit.

摘要翻译： 用于将计算机系统连接到网络并支持计算机系统以在网络上设置多个连接并执行计算机之间的并行通信的通信控制设备。 通信控制设备包括用于计算机系统的接口电路，用于执行通信控制处理的微处理器，用于存储程序和工作数据的本地存储器，用于临时存储发送和接收数据的缓冲存储器，用于执行数据传输的DMA传送单元 在计算机系统中的存储器和缓冲存储器之间以及缓冲存储器和本地存储器之间的协议报头传送之间，用于控制数据到网络的传输和接收的网络控制器，以及用于预测 帧将被相应地接收到多个连接中的每一个并且检索对应于由DMA传送单元传送的接收帧的协议报头的报头。

公开(公告)号：US5748893A

公开(公告)日：1998-05-05

申请号：US739436

申请日：1996-10-29

申请人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Masayo Nagano ,  Yoshiaki Adachi ,  Hiroshi Wataya ,  Ken Onuki

发明人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Masayo Nagano ,  Yoshiaki Adachi ,  Hiroshi Wataya ,  Ken Onuki

IPC分类号： G06F13/12 ,  G06F13/00

CPC分类号： G06F13/128

摘要： It is designed to connect a duplicated LAN to a network terminal such as a controller having a standard serial or parallel interface, a computer having only one LAN interface, or a computer having only one communication line interface. The network interface apparatus for connecting a network terminal and a duplicated LAN comprises a device for controlling interfaces with the network terminal and the LAN transmission line of each of the duplicated LAN, a buffer, and a sending device to both, and the data from the network terminal is buffered in the buffer, and when the buffered data reaches a fixed amount, the data is sent to both LANs of the duplicated LAN. On the other hand, with respect to the data received from each LAN transmission line of the duplicated LAN, only the data which is judged as earlier arrival data is sent to the network terminal.

摘要翻译： 它被设计为将重复的LAN连接到诸如具有标准串行或并行接口的控制器的网络终端，仅具有一个LAN接口的计算机或仅具有一个通信线路接口的计算机。 用于连接网络终端和复制LAN的网络接口设备包括用于控制与网络终端的接口和每个复制LAN的LAN传输线，缓冲器和发送设备的接口的设备，以及来自 网络终端被缓冲在缓冲器中，当缓冲数据达到固定数量时，数据被发送到复制LAN的两个LAN。 另一方面，对于从复制LAN的每个LAN传输线接收到的数据，仅将被判断为较早的到达数据的数据发送到网络终端。

公开(公告)号：US5303344A

公开(公告)日：1994-04-12

申请号：US659705

申请日：1991-02-25

申请人： Tatsuya Yokoyama ,  Susumu Matsui ,  Matsuaki Terada ,  Tetsuhiko Hirata ,  Mika Mizutani

发明人： Tatsuya Yokoyama ,  Susumu Matsui ,  Matsuaki Terada ,  Tetsuhiko Hirata ,  Mika Mizutani

IPC分类号： H04L29/06 ,  G06F3/00 ,  G06F15/16

CPC分类号： H04L29/06 ,  H04L69/22

摘要： A communication control equipment connected between a computer and a network so as to perform protocol processing at a high speed, has a buffer memory connected between a computer interface circuit and a network interface circuit through a first path for data transfer, so as to temporarily store communication data, and a protocol processor connected between the computer interface circuit and the network interface circuit through a second path for control information transfer. The protocol processor is also connected to the buffer memory through a third path so as to effect protocol processing on the communication data within the buffer memory. The protocol processor includes a plurality of processor units connected in series in the second path so as to respond to control information received from the second path to make access to the buffer memory through the third path and to execute a first category of protocol processing necessary in normal data transfer on the communication data stored in the buffer memory. If protocol processing other than the first category of protocol processing on the communication data is necessary, the processor units supply the control information to the third path. The protocol processing also includes a second processor which operates as a backend processor for the processor units and which is connected to the third path so as to respond to the control information received from the third path to execute protocol processing other than the first category of protocol processing on the communication data stored in the buffer memory.

摘要翻译： 连接在计算机和网络之间以便以高速执行协议处理的通信控制设备通过用于数据传送的第一路径在计算机接口电路和网络接口电路之间连接有缓冲存储器，以便临时存储 通信数据和通过用于控制信息传送的第二路径连接在计算机接口电路和网络接口电路之间的协议处理器。 协议处理器还通过第三路径连接到缓冲存储器，以便对缓冲存储器内的通信数据进行协议处理。 协议处理器包括在第二路径中串联连接的多个处理器单元，以响应从第二路径接收到的控制信息，以通过第三路径访问缓冲存储器，并执行第一类协议处理 对存储在缓冲存储器中的通信数据进行正常数据传输。 如果需要除通信数据上的第一类协议处理之外的协议处理，则处理器单元将控制信息提供给第三路径。 协议处理还包括第二处理器，其作为用于处理器单元的后端处理器并且连接到第三路径，以响应从第三路径接收到的控制信息来执行不同于第一类协议的协议处理 对存储在缓冲存储器中的通信数据进行处理。

公开(公告)号：US07085579B2

公开(公告)日：2006-08-01

申请号：US09823135

申请日：2001-03-30

申请人： Mika Mizutani ,  Susumu Matsui ,  Tetsuhiko Hirata ,  Masashi Yano

发明人： Mika Mizutani ,  Susumu Matsui ,  Tetsuhiko Hirata ,  Masashi Yano

IPC分类号： H04B7/00 ,  H04M1/00 ,  H04Q7/20 ,  H04Q7/00

CPC分类号： H04W72/10 ,  H04W52/0216 ,  H04W52/0254 ,  H04W72/0413 ,  H04W76/20

摘要： A mobile communication system with a packet switching function which enables sharing of radio resources among mobile stations, wherein a mobile station which has generated a request for communication quality assurance periodically sends a packet for requesting preferential use of a radio channel in order to prevent timeout of the state transition timer, timeout of which would cancel radio channel assignment to the mobile station and bring it into a dormant state if a certain period elapses without transmission or reception of a signal, so that it can remain in the active state and hold the radio channel continuously. In addition, when the mobile station requesting communication quality assurance moves from one cell to another or requests radio channel assignment, the base station controller controls the radio base station so that the mobile station can be assigned a radio channel by sending a priority request packet.

摘要翻译： 一种具有分组交换功能的移动通信系统，其能够在移动台之间共享无线电资源，其中已经产生通信质量保证请求的移动台周期性地发送用于请求优先使用无线电信道的分组，以便防止超时 状态转换定时器，其超时将取消对移动台的无线电信道分配，并且如果在没有发送或接收信号的情况下经过一定时间段，则使其处于休眠状态，使得其可以保持在活动状态并保持无线电 频道不断。 此外，当请求通信质量保证的移动台从一个小区移动到另一个小区或请求无线电信道分配时，基站控制器控制无线电基站，使得移动台可以通过发送优先级请求分组被分配无线电信道。

公开(公告)号：US07009950B1

公开(公告)日：2006-03-07

申请号：US09624072

申请日：2000-07-24

申请人： Tetsuhiko Hirata ,  Masashi Yano ,  Norihisa Matsumoto ,  Susumu Matsui ,  Shoji Fukuzawa ,  Atsushi Teshima ,  Mika Mizutani

发明人： Tetsuhiko Hirata ,  Masashi Yano ,  Norihisa Matsumoto ,  Susumu Matsui ,  Shoji Fukuzawa ,  Atsushi Teshima ,  Mika Mizutani

IPC分类号： H04Q7/00

CPC分类号： H04L69/168 ,  H04L29/06 ,  H04L69/16 ,  H04W8/26 ,  H04W36/0011 ,  H04W76/12 ,  H04W80/00 ,  H04W80/04 ,  H04W92/02 ,  H04W92/12 ,  H04W92/24

摘要： In a mobile IP network system containing a plurality of radio access networks 2 for connecting with mobile stations 1 via radio links and an IP network 102 connected with a plurality of packet nodes for transferring IP packets, each of the radio access networks has at least one base station controller 7 and at least one radio base station 6 connected to the base station controller. Each of the base station controllers 7 in the radio access network is connected to the plurality of packet nodes to each other via a network 104 and selects one of the plurality of packet nodes in accordance with a state of each mobile station to establish a logical connection to be used in IP packet communication of the mobile station.

摘要翻译： 在包含用于经由无线电链路与移动台1连接的多个无线电接入网络2和与多个分组节点连接以传送IP分组的IP网络102的移动IP网络系统中，每个无线电接入网络具有至少一个 基站控制器7和连接到基站控制器的至少一个无线基站6。 无线电接入网络中的每个基站控制器7经由网络104彼此连接到多个分组节点，并根据每个移动台的状态选择多个分组节点中的一个以建立逻辑连接 用于移动台的IP分组通信。

公开(公告)号：US07404008B2

公开(公告)日：2008-07-22

申请号：US10644009

申请日：2003-08-20

申请人： Keisuke Takeuchi ,  Tetsuhiko Hirata ,  Hiroaki Nakazawa

发明人： Keisuke Takeuchi ,  Tetsuhiko Hirata ,  Hiroaki Nakazawa

IPC分类号： G06F15/16

CPC分类号： H04L29/12066 ,  H04L29/12264 ,  H04L29/12358 ,  H04L29/12481 ,  H04L61/1511 ,  H04L61/2046 ,  H04L61/251 ,  H04L61/2557 ,  H04L69/16 ,  H04L69/161 ,  H04L69/167

摘要： There is provided an address translator having the functions to prevent, in the communications via the address translation, transmission of packets having no correct destination and transmission source addresses which will cause troubles in the networks and to urge an administrator take adequate measures for reception of the relevant packets. This address translator stores discriminator to discriminate temporary addresses. Moreover, when the original address is registered as the temporary address at the time of assignment of the temporary address of the receiving side host started when the name solution is performed, assignment is rejected to prevent transmission of packet from the transmitting side host by returning a response for name solution error to the transmitting side host. In addition, when transmission source address before translation and destination address after translation are registered as the temporary address, the received packet is discarded. Moreover, assignment of the temporary address is rejected and the packet is discarded, a message is transmitted to an alarm device or external host to notifying the event to an administrator.

摘要翻译： 提供了一种地址转换器，其功能是通过地址转换的通信来防止传输不具有正确目的地的分组和传输源地址，这将导致网络中的麻烦并且敦促管理员采取适当的措施来接收 相关数据包 该地址转换器存储鉴别器以区分临时地址。 此外，当在分配名称解决方案时开始的接收侧主机的临时地址时将原始地址登记为临时地址时，拒绝分配，以防止通过返回发送方主机来发送分组 对发送端主机的名称解决方案的响应。 此外，当转换之前的传输源地址和翻译后的目的地址被注册为临时地址时，丢弃所接收的分组。 此外，临时地址的分配被拒绝并且分组被丢弃，消息被传送到报警设备或外部主机以向管理员通知事件。

公开(公告)号：US20070110060A1

公开(公告)日：2007-05-17

申请号：US11650489

申请日：2007-01-08

申请人： Kazuho Miki ,  Kenichi Sakamoto ,  Koji Wakayama ,  Tetsuhiko Hirata ,  Hiroaki Miyata

发明人： Kazuho Miki ,  Kenichi Sakamoto ,  Koji Wakayama ,  Tetsuhiko Hirata ,  Hiroaki Miyata

IPC分类号： H04L12/56

CPC分类号： H04W88/005 ,  H04L12/2856 ,  H04L12/2859 ,  H04L12/4633 ,  H04L45/54 ,  H04L69/16 ,  H04L69/168

摘要： An access node run as a packet switching apparatus enables IP connection services for a plurality of access methods; e.g., relatively low-speed IP connection, high-speed 1P connection, and mobile network IP connection. By using this apparatus of the present invention, cost can be reduced and upgrading to advanced access networks and access services is easily carried out. Provision of the above access nodes implements upgrade-type network services common for diverse protocols. Each access node retains a pathfinding table to which input port, input tunnel identifier and input session identifier entries in a set are registered per session. When routing a packet, by looking up the set of these entries matching with the packet, the associated output port, output tunnel identifier, and output session identifier are obtained. After processing for the packet, appropriate for one of the plurality of access methods and network services, the node forwards the packet over the routed path.

摘要翻译： 作为分组交换装置运行的接入节点能够实现多种接入方式的IP连接业务; 例如，相对低速的IP连接，高速1P连接和移动网络IP连接。 通过使用本发明的装置，可以降低成本，容易地进行高级接入网和接入业务的升级。 上述接入节点的配置实现了各种协议通用的升级型网络服务。 每个访问节点保留路径寻找表，每个会话向其注册一个输入端口，输入隧道标识符和一组中的输入会话标识符条目。 当路由数据包时，通过查找与数据包匹配的这些条目的集合，获得相关联的输出端口，输出隧道标识符和输出会话标识符。 在针对分组的处理之后，适于多个接入方法和网络服务之一，节点通过路由路径转发分组。

公开(公告)号：US06701132B1

公开(公告)日：2004-03-02

申请号：US09517483

申请日：2000-03-02

申请人： Shoji Fukuzawa ,  Tetsuhiko Hirata ,  Masashi Yano ,  Norihisa Matsumoto ,  Toshiro Suzuki

发明人： Shoji Fukuzawa ,  Tetsuhiko Hirata ,  Masashi Yano ,  Norihisa Matsumoto ,  Toshiro Suzuki

IPC分类号： H04B1700

CPC分类号： H04W64/00 ,  G01S5/10

摘要： A mobile communication system that can obtain mobile station location information repeatedly at short intervals, without depending on whether base stations are synchronous or asynchronous, with lower loads and suppressed use of radio resources. For obtaining location information, a mobile station receives a paging channel periodically sent from a base station (Step 100), obtains the contents and the reception timing of this paging channel. Further, if it is necessary to obtain the transmission timing of the paging channel, that transmission timing is obtained (Steps 105, 106). The propagation delay of the paging channel or propagation delay differences between a plurality of periodic paging channels are calculated from the transmission timing and the reception timing of the paging channel (Step 107). The mobile station location information is calculated from the propagation delay or propagation delay difference, and outputted (Steps 108, 109, 110).

摘要翻译： 一种移动通信系统，能够以较短的间隔重复地获取移动台位置信息，而不依赖于基站是同步的还是异步的，具有较低的负载并且抑制了无线电资源的使用。 为了获得位置信息，移动站接收从基站周期性地发送的寻呼信道（步骤100），获得该寻呼信道的内容和接收定时。 此外，如果需要获得寻呼信道的发送定时，则获得发送定时（步骤105,106）。 从寻呼信道的发送定时和接收定时计算寻呼信道的传播延迟或多个周期性寻呼信道之间的传播延迟差异（步骤107）。 从传播延迟或传播延迟差计算出移动站位置信息，并输出（步骤108,109,110）。