公开(公告)号：US06028837A

公开(公告)日：2000-02-22

申请号：US703454

申请日：1996-08-27

申请人： David J. Miller

发明人： David J. Miller

IPC分类号： H04L12/42 ,  H04L12/433

CPC分类号： H04L12/42 ,  Y10S370/909

摘要： A ring topology based architecture for a local area network. The transmission medium is unshielded twisted-pair wire. A set of two such twisted-pairs are used to connect the nodes of the network together, with the transmit twisted-pair wires from one node being connected to the receive twisted-pair wires of the next node. When a node of the network is powered up, a relay is opened which disconnects the incoming receive lines from the outgoing transmit lines. This brings the node on line. The relay is controlled via software command and a timer which is used to take a preceding node off-line for a predetermined period in the event jabber from that node is detected. A 16 byte FIFO bypass built into the medium access control hardware of the system is used to reduce the ring latency which normally results from the need to store entire data packets at each node, prior to the packet being forwarded. The FIFO bypass is used to detect the source and destination addresses for the data packets, and to determine if a packet should be forwarded along the ring. If a node is transmitting a packet when it receives a new packet, the incoming data is buffered until the current transmission is completed. This avoids the collision problem common in bus topologies.

摘要翻译： 用于局域网的基于环形拓扑的架构。 传输介质是非屏蔽双绞线。 一组两个这样的双绞线用于将网络的节点连接在一起，一个节点的发射双绞线连接到下一个节点的接收双绞线。 当网络的节点通电时，打开一个继电器，将输入的接收线路与输出的发送线路断开。 这使得节点在线。 继电器通过软件命令和定时器进行控制，该定时器用于在检测到来自该节点的事件jabber中的预定时间段内离线接收前一个节点。 内置于系统的介质访问控制硬件中的16字节FIFO旁路用于减少环形延迟，这通常是由于需要在数据包转发之前在每个节点存储整个数据包。 FIFO旁路用于检测数据包的源地址和目的地址，并确定数据包是否应沿着环路转发。 如果节点在接收到新数据包时发送数据包，则缓冲输入数据，直到当前传输完成。 这避免了总线拓扑中常见的冲突问题。

公开(公告)号：US5982747A

公开(公告)日：1999-11-09

申请号：US67350

申请日：1998-04-27

申请人： Lars H.ang.kan Ramfelt ,  Lars Markus Hidell

发明人： Lars H.ang.kan Ramfelt ,  Lars Markus Hidell

IPC分类号： H04J3/14 ,  H04J3/08 ,  H04L12/28 ,  H04L12/42 ,  H04L12/43 ,  H04L12/437 ,  H04L12/64 ,  H04Q11/04 ,  H04J1/16

CPC分类号： H04L12/2852 ,  H04J3/085 ,  H04L12/422 ,  H04L12/437 ,  H04L12/6418 ,  H04Q11/0478 ,  H04J2203/0044 ,  H04J2203/0046 ,  H04J2203/006 ,  H04J3/07 ,  H04L2012/6435 ,  H04L2012/6451 ,  H04L2012/6456 ,  H04L2012/6459 ,  Y10S370/909

摘要： The dynamic synchronous transfer mode dual ring topology has two rings with opposite fiber directions. The dual rings may have a plurality of common nodes. A first channel may be established in a first segment extending between a first and second nodes. Tokens associated with the first channel may be provided. In this way, time slots may be transmitted in the first channel from the first node to the second node. If a fiber failure occurs in the first segment, the second node is likely to first detect the fiber failure and transmit a fiber failure message. It is then determined if the first channel extends across the fiber failure. If the first channel is affected by the fiber failure then a channel failure message is transmitted and the first channel is terminated and all the tokens associated with the first segment are removed. If the first channel is not affected then time slots are continued to be transmitted on the first channel.

摘要翻译： 动态同步传输模式双环拓扑具有两个具有相反光纤方向的环。 双环可以具有多个公共节点。 可以在第一和第二节点之间延伸的第一段中建立第一通道。 可以提供与第一通道相关联的令牌。 以这种方式，可以在第一信道中从第一节点向第二节点发送时隙。 如果在第一段发生光纤故障，则第二节点可能首先检测到光纤故障并发送光纤故障消息。 然后确定第一通道是否跨越光纤故障延伸。 如果第一信道受光纤故障的影响，则发送信道失败消息，并且终止第一信道，并且去除与第一段相关联的所有令牌。 如果第一信道不受影响，则继续在第一信道上发送时隙。

公开(公告)号：US5646939A

公开(公告)日：1997-07-08

申请号：US512719

申请日：1995-08-08

申请人： Carl Lindeborg ,  Edward Carroll ,  James Moran ,  David Bartolini ,  John Griesing ,  Liz Lindell ,  Anthony Dean Walker ,  Bradley S. Trubey

发明人： Carl Lindeborg ,  Edward Carroll ,  James Moran ,  David Bartolini ,  John Griesing ,  Liz Lindell ,  Anthony Dean Walker ,  Bradley S. Trubey

IPC分类号： H04L12/433 ,  H04L29/12 ,  H04L12/26

CPC分类号： H04L29/12018 ,  H04L12/433 ,  H04L29/12009 ,  H04L61/10 ,  Y10S370/909

摘要： A token ring network performs address to port mapping by taking advantage of the abilities of the port switched modules and the neighbor notification process, in order to perform address to port mapping on each individual module. Ring monitors are switched from an upstream side of a port to a downstream side of a port when the neighbor notification process enters the port domain. The processor on the module records all the addresses received on the downstream side of the port, when the neighbor notification process is in the domain of that port. If it appears that the neighbor notification process is in the domain of two adjacent ports, the present invention only records addresses from the most downstream of the two adjacent ports, since such a situation is an indication that the upstream ports do not conform to MAC protocol. If a non-protocol station is connected to the last port in a module, the module will collect addresses from that port until the neighbor notification process enters the most upstream port of the module. At that point, addresses are no longer recorded in the most downstream port, and each set of addresses for each port are checked to determine if the last entry in each port has the ARI bits set to one and the source address is similar to the address of the most upstream neighbor of the module. If the addresses are the same, all addresses recorded in that port are ignored, since that port contains a non-protocol station.

摘要翻译： 令牌环网络通过利用端口交换模块和邻居通知过程的能力来执行地址到端口映射，以便在每个单独模块上执行地址到端口映射。 当邻居通知进程进入端口域时，环形监视器从端口的上游侧切换到端口的下游侧。 当邻居通知进程在该端口的域中时，模块上的处理器将记录端口下游接收的所有地址。 如果邻居通知过程似乎在两个相邻端口的域中，则本发明仅记录来自两个相邻端口最下游的地址，因为这种情况是指示上行端口不符合MAC协议 。 如果非协议站连接到模块中的最后一个端口，则该模块将从该端口收集地址，直到邻居通知进程进入模块的最上游端口。 在这一点上，地址不再被记录在最下游端口，并且每个端口的每组地址被检查以确定每个端口中的最后一个条目是否具有设置为1的ARI位，并且源地址类似于地址 的模块的最上游邻居。 如果地址相同，则该端口中记录的所有地址都将被忽略，因为该端口包含非协议站。

公开(公告)号：US07975074B2

公开(公告)日：2011-07-05

申请号：US11969921

申请日：2008-01-07

申请人： Ray-Guang Cheng ,  Ruei-I Chang

发明人： Ray-Guang Cheng ,  Ruei-I Chang

IPC分类号： G06F15/16 ,  G06F15/173 ,  H04L12/42

CPC分类号： H04W74/02 ,  H04L12/433 ,  Y10S370/909

摘要： A data transmission method with multiple token mechanism in wireless token ring protocol is provided. First, (a) a logical ring with M nodes is provided; (b) a k-th node is selected from the logical ring, and a token in the k-th node is generated; (c) a first message is sent to a (k+1)-th node from the k-th node with the token, and whether the (k+1)-th node responds a second message is judged, if yes, the data to be transmitted is transmitted from the k-th node, otherwise, the token of the k-th node is eliminated; (d) the token is sent to the (k+1)-th node from the k-th node after completing the transmission of the transmitted data of the k-th node, a generation token sequence is generated in a i-th node, and sent to a (i−1)-th node; and (e) the token is generated for the (i−1)-th node with the generation token sequence.

摘要翻译： 提供了一种在无线令牌环协议中具有多重令牌机制的数据传输方法。 首先，（a）提供了具有M个节点的逻辑环; （b）从逻辑环中选择第k个节点，并且生成第k个节点中的令牌; （c）从具有令牌的第k个节点向第（k + 1）个节点发送第一消息，以及是否判断第（k + 1）个节点对第二消息的响应，如果是，则 从第k个节点发送要发送的数据，否则消除第k个节点的令牌; （d）在完成第k个节点的发送数据的发送之后，令牌从第k个节点发送到第（k + 1）个节点，在第i个节点中生成生成令牌序列 并发送到第（i-1）个节点; 和（e）使用生成令牌序列为第（i-1）节点生成令牌。

公开(公告)号：US06782552B1

公开(公告)日：2004-08-24

申请号：US09513614

申请日：2000-02-25

申请人： Andreas Stiegler ,  Michael Becker ,  Harald Schoepp ,  Jochen Klaus-Wagenbrenner ,  Joachim Wietzke

发明人： Andreas Stiegler ,  Michael Becker ,  Harald Schoepp ,  Jochen Klaus-Wagenbrenner ,  Joachim Wietzke

IPC分类号： H04N718

CPC分类号： H04N21/63 ,  H04L12/423 ,  Y10S370/909

摘要： A control command, which has a command header sequence and a sequence of n parameters, is generated in a data source of a local network. The control command has a variable length defined by the data source. The control command is passed to the ring data line of the local network and is forwarded to a data sink. This data sink contains a control unit, a picture output unit, an interface and a memory, in which video data are stored. The video data can be read out and displayed on the picture output unit. The control command has n parameters of which the first m parameters are interpreted by the control unit. The number m is determined by the properties of the data sink and is independent of the properties of the data source. Using the m interpreted parameters, specific video data are read from the memory and are reproduced. The invention relates to a local network having a plurality of subscribers, which are connected to one another through the use of an optical data line for transmitting audio, video data and/or control data. The subscribers, together with the optical data line, form a ring network.

摘要翻译： 在本地网络的数据源中生成具有命令头序列和n个参数的序列的控制命令。 控制命令具有由数据源定义的可变长度。 控制命令传递给本地网络的环形数据线，并转发到数据宿。 该数据接收器包含存储视频数据的控制单元，图像输出单元，接口和存储器。 视频数据可以读出并显示在图像输出单元上。 控制命令具有n个参数，控制单元解释前m个参数。 数字m由数据宿的属性确定，并且与数据源的属性无关。 使用m个解释参数，从存储器中读取特定的视频数据并被再现。本发明涉及具有多个用户的本地网络，其通过使用用于传输音频的光数据线彼此连接，视频 数据和/或控制数据。 订户与光数据线一起形成环网。

公开(公告)号：US06754721B2

公开(公告)日：2004-06-22

申请号：US10031909

申请日：2002-01-17

申请人： Andreas Heckel

发明人： Andreas Heckel

IPC分类号： G06F300

CPC分类号： H04L61/2038 ,  H04L12/40019 ,  H04L12/40169 ,  H04L29/12018 ,  H04L29/12254 ,  H04L29/12801 ,  H04L29/12839 ,  H04L61/10 ,  H04L61/6004 ,  H04L61/6022 ,  H04L2012/40221 ,  Y10S370/909

摘要： The present invention describes a method for configuring a station connected to a field bus, wherein a logical address is allocated to said station. The method comprises the steps of: transmitting said logical address from an address-allocation unit to said station; transmitting a physical address from said address-allocation unit to said station, said physical address corresponding to an assumed physical position of said station relative to said field bus; verifying said physical address being transmitted to said station based on an actual physical position of said station relative to said field bus; and storing said transmitted logical address in a memory of said station depending on the verification of said physical address.

摘要翻译： 本发明描述了一种用于配置连接到现场总线的站的方法，其中逻辑地址被分配给所述站。 该方法包括以下步骤：将所述逻辑地址从地址分配单元发送到所述站; 将物理地址从所述地址分配单元发送到所述站，所述物理地址对应于所述站相对于所述现场总线的假设物理位置; 基于所述站相对于所述现场总线的实际物理位置来验证被发送到所述站的所述物理地址; 以及根据所述物理地址的验证将所述发送的逻辑地址存储在所述站的存储器中。

公开(公告)号：US20090055909A1

公开(公告)日：2009-02-26

申请号：US11969921

申请日：2008-01-07

申请人： Ray-Guang Cheng ,  Ruei-I Chang

发明人： Ray-Guang Cheng ,  Ruei-I Chang

IPC分类号： H04L9/32 ,  G06F17/00

CPC分类号： H04W74/02 ,  H04L12/433 ,  Y10S370/909

摘要： A data transmission method with multiple token mechanism in wireless token ring protocol is provided. First, (a) a logical ring with M nodes is provided; (b) a k-th node is selected from the logical ring, and a token in the k-th node is generated; (c) a first message is sent to a (k+1)-th node from the k-th node with the token, and whether the (k+1)-th node responds a second message is judged, if yes, the data to be transmitted is transmitted from the k-th node, otherwise, the token of the k-th node is eliminated; (d) the token is sent to the (k+1)-th node from the k-th node after completing the transmission of the transmitted data of the k-th node, a generation token sequence is generated in a i-th node, and sent to a (i−1)-th node; and (e) the token is generated for the (i−1)-th node with the generation token sequence.

摘要翻译： 提供了一种在无线令牌环协议中具有多重令牌机制的数据传输方法。 首先，（a）提供了具有M个节点的逻辑环; （b）从逻辑环中选择第k个节点，并且生成第k个节点中的令牌; （c）从具有令牌的第k个节点向第（k + 1）个节点发送第一消息，以及是否判断第（k + 1）个节点对第二消息的响应，如果是，则 从第k个节点发送要发送的数据，否则消除第k个节点的令牌; （d）在完成第k个节点的发送数据的发送之后，令牌从第k个节点发送到第（k + 1）个节点，在第i个节点中生成生成令牌序列 并发送到第（i-1）个节点; 和（e）使用生成令牌序列为第（i-1）节点生成令牌。

公开(公告)号：US06965933B2

公开(公告)日：2005-11-15

申请号：US10114072

申请日：2002-04-03

申请人： Jacobus C. Haartsen

发明人： Jacobus C. Haartsen

IPC分类号： H04L12/28 ,  H04L12/417 ,  H04L12/433 ,  H04L12/56 ,  G06F15/173

CPC分类号： H04L12/4015 ,  H04L12/417 ,  H04L47/24 ,  H04W74/04 ,  Y10S370/909

摘要： A method and apparatus for token distribution include providing one or more nodes of a plurality of network nodes with a token machine that includes counters associated with each of other network nodes having a token machine. Each time a token possessing network node implicitly or explicitly passes the token to another network node having a token machine, counter values of each of the counters associated with each node having a token machine are adjusted. When a token is passed, the counter value of the receiving node is adjusted based, at least in part, on an initial token interval value, and counter values associated with other nodes are adjusted toward a threshold value. The decision as to where the token is passed may be based, at least in part, on the value of a counter and/or an assigned counter priority level. The system or method also may include priority slots in which the token is unconditionally passed to a node assigned the priority slot, and an ARQ scheme for acknowledgment of transferred information.

摘要翻译： 用于令牌分发的方法和装置包括向多个网络节点提供一个或多个节点，令牌机器包括与具有令牌机器的其他网络节点中的每一个相关联的计数器。 每次拥有网络节点的令牌将令牌隐式或显式地传递给具有令牌机器的另一个网络节点时，调整与具有令牌机器的每个节点相关联的每个计数器的计数器值。 当令牌通过时，至少部分地基于初始令牌间隔值来调整接收节点的计数器值，并且将与其他节点相关联的计数器值调整到阈值。 至少部分地基于计数器的值和/或分配的计数器优先级来决定令牌在哪里通过的决定。 系统或方法还可以包括优先级时隙，其中令牌被无条件地传递给分配了优先级时隙的节点，以及用于确认传送的信息的ARQ方案。

公开(公告)号：US20020138668A1

公开(公告)日：2002-09-26

申请号：US10031909

申请日：2002-01-17

申请人： PILZ GMBH & CO.

发明人： Andreas Heckel

IPC分类号： G06F013/10

CPC分类号： H04L61/2038 ,  H04L12/40019 ,  H04L12/40169 ,  H04L29/12018 ,  H04L29/12254 ,  H04L29/12801 ,  H04L29/12839 ,  H04L61/10 ,  H04L61/6004 ,  H04L61/6022 ,  H04L2012/40221 ,  Y10S370/909

摘要： The present invention describes a method for configuring a station connected to a field bus, wherein a logical address is allocated to said station. The method comprises the steps of: transmitting said logical address from an address-allocation unit to said station; transmitting a physical address from said address-allocation unit to said station, said physical address corresponding to an assumed physical position of said station relative to said field bus; verifying said physical address being transmitted to said station based on an actual physical position of said station relative to said field bus; and storing said transmitted logical address in a memory of said station depending on the verification of said physical address.

摘要翻译： 本发明描述了一种用于配置连接到现场总线的站的方法，其中逻辑地址被分配给所述站。 该方法包括以下步骤：将所述逻辑地址从地址分配单元发送到所述站; 将物理地址从所述地址分配单元发送到所述站，所述物理地址对应于所述站相对于所述现场总线的假设物理位置; 基于所述站相对于所述现场总线的实际物理位置来验证被发送到所述站的所述物理地址; 以及根据所述物理地址的验证将所述发送的逻辑地址存储在所述站的存储器中。

公开(公告)号：US07684348B2

公开(公告)日：2010-03-23

申请号：US11568311

申请日：2006-05-17

申请人： Fan Zhang ,  Feng Liu

发明人： Fan Zhang ,  Feng Liu

IPC分类号： G01R31/08 ,  H04L12/28

CPC分类号： H04L47/25 ,  H04L12/437 ,  H04L47/11 ,  H04L47/215 ,  H04L47/2408 ,  Y10S370/909

摘要： The present invention discloses a method for ensuring service classes of packet services, which includes limiting the rate of services with different service classes uploaded to a ringlet from an RPR station in accordance with the RPR physical packet lengths; monitoring, in real time, the rate of non-class A0 services uploaded to the ringlet from the RPR station and forwarded by the RPR station in accordance with the RPR physical packet lengths, and when the rate of the non-class A0 services exceeds the un-reserved rate of the RPR network, reporting a congestion message and adjusting the rate of the non-class A0 services uploaded to the ringlet from the RPR stations in the congestion domain. A method of rate limitation is also disclosed, by which rate limitation is conducted based on a Token Bucket according to the total length of the sent packet after encapsulation. The methods, by means of rate limitation and rate monitoring of the services uploaded to the ringlet from each RPR station according to the RPR physical packet length, can effectively overcome the shortcoming that the reserved bandwidth in the RPR can not be ensured because forwarded services unexpected occupy the bandwidth of the services uploaded to the ringlet at a downstream RPR station due to the physical layer encapsulation overhead.

摘要翻译： 本发明公开了一种确保分组业务等级的方法，其中包括根据RPR物理分组长度，限制从RPR站上传到小环的不同业务类别的业务速率; 实时监控从RPR站上传到小环的非A0类业务的速率，并根据RPR物理分组长度由RPR站转发，当非A0业务的速率超过 RPR网络的未保留速率，报告拥塞消息，并调整从拥塞域中的RPR站上传到小环的非A0级业务的速率。 还公开了速率限制的方法，通过该方法，根据封装后发送的分组的总长度，基于令牌桶进行速率限制。 根据RPR物理分组长度，通过对每个RPR站上传到小环的业务的速率限制和速率监控方法，可以有效地克服RPR中保留带宽无法保证的缺点，因为转发业务意外 占用由于物理层封装开销而在下游RPR站上载到小环的业务的带宽。