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1. 发明授权

US06603741B1 Monitoring of connection between network devices in a packet-based communication system 有权
标题翻译：监控基于分组的通信系统中网络设备之间的连接
公开(公告)号：US06603741B1
公开(公告)日：2003-08-05
申请号：US09373231
申请日：1999-08-12
申请人： Alan R Poulter , David J Law , Paul Cramphorn , Steven Brewer , Patrick M Overs
发明人： Alan R Poulter , David J Law , Paul Cramphorn , Steven Brewer , Patrick M Overs
IPC分类号： H04J314
CPC分类号： H04L43/16 , H04L1/0002 , H04L5/1446 , H04L29/06 , H04L43/00 , H04L43/0811 , H04L43/0847 , H04L49/55 , H04L69/24 , H04L69/324 , Y02D50/10
摘要： The invention concerns the establishment of the rate of transmission of data between two network stations by means of auto-negotiation. The execution of an auto-negotiation sequence by a state machine is counted and if the number of executions of the sequence exceeds a threshold, the auto-negotiation sequence is modified to establish a data rate lower than a previously negotiated rate. A particular example is described for use in accordance with IEEE standard 802.3. In a specific example, monitoring of the execution of the auto-negotiation sequence comprises counting the occurrences of a ‘page received’ bit in an auto-negotiation expansion register.
摘要翻译：本发明涉及通过自动协商建立两个网络站之间的数据传输速率。对状态机执行自动协商序列进行计数，并且如果序列的执行次数超过阈值，则修改自动协商序列以建立低于先前协商的速率的数据速率。描述了根据IEEE标准802.3使用的特定示例。在具体示例中，监视自动协商序列的执行包括对自动协商扩展寄存器中的“页面接收”位的出现进行计数。

2. 发明授权

US07233601B1 Cascade architecture and operation for packet-based communication systems 有权
标题翻译：级联架构和基于分组通信系统的操作
公开(公告)号：US07233601B1
公开(公告)日：2007-06-19
申请号：US09662158
申请日：2000-09-14
申请人： Alan R. Poulter , Quang T Tran , Sharon L Wiles , David J Law , Paul J Moran , Christopher A Walker
发明人： Alan R. Poulter , Quang T Tran , Sharon L Wiles , David J Law , Paul J Moran , Christopher A Walker
IPC分类号： H04L12/40
CPC分类号： H04L49/351 , H04L12/44
摘要： A connecting unit for use in a system comprising a ‘stack’ of network communication units having a cascade connection has three ports having lines for forwarding and receiving data packets and for forwarding and receiving control messages. The connecting unit increments a first signal value defining an identification number received by way of a control message at a first port, provides the received signal value by way of a control message to the third port and provides the incremented signal value by way of a control message to the second port. The connecting unit also receives a second signal value defining an active unit count by way of a control message at the first port and provides the second signal value, incremented or not in dependence on a control message received at the third port, in a control message at the second port. The first signal values (UnitIDs) are used to establish the numbering of the units in the stack and the second signal values are used to compute a count of the ‘active’ units in the stack.
摘要翻译：用于包括具有级联连接的网络通信单元的“堆叠”的系统的连接单元具有三个端口，其具有用于转发和接收数据分组以及用于转发和接收控制消息的线路。连接单元增加定义通过第一端口处的控制消息接收的标识号的第一信号值，并通过控制消息将接收到的信号值提供给第三端口，并通过控制提供增加的信号值消息到第二个端口。连接单元还通过第一端口处的控制消息接收定义有效单元计数的第二信号值，并且在控制消息中提供依赖于在第三端口接收的控制消息而增加或不增加的第二信号值在第二个港口第一个信号值（UnitID）用于建立堆栈中单元的编号，第二个信号值用于计算堆栈中“活动”单元的计数。

3. 发明授权

US07023873B2 Network device including detection of link status employing auto-negotiation 失效
标题翻译：网络设备包括使用自动协商检测链路状态
公开(公告)号：US07023873B2
公开(公告)日：2006-04-04
申请号：US09858595
申请日：2001-05-17
申请人： Patrick Gibson , Neil J MacDonald , Alan R Poulter , David J Law
发明人： Patrick Gibson , Neil J MacDonald , Alan R Poulter , David J Law
IPC分类号： H04L12/413
CPC分类号： H04B10/0799
摘要： A network device is arranged to transmit a specific identification such as the device's MAC address in Next Pages of auto-negotiation and to determine a link status to be ‘down’ if ‘Next Pages’ containing that address are received by the same port. The invention avoids the use of signal detect pins for fiber optic links.
摘要翻译：网络设备被布置为在下一页自动协商中传输诸如设备的MAC地址的特定标识，并且如果由同一端口接收到包含该地址的“下一页”，则确定链路状态为“关闭”。本发明避免了对光纤链路使用信号检测引脚。

4. 发明授权

US06399890B1 Printed circuit board having dual purpose profile 失效
标题翻译：具有双重目的的印刷电路板
公开(公告)号：US06399890B1
公开(公告)日：2002-06-04
申请号：US09953275
申请日：2001-09-17
申请人： Alan R Poulter , Richard N Bayfield , Bryan J Donoghue , Mark A Bobbitt , David J Law , Edward Turner
发明人： Alan R Poulter , Richard N Bayfield , Bryan J Donoghue , Mark A Bobbitt , David J Law , Edward Turner
IPC分类号： H05K116
CPC分类号： H05K1/117 , H05K1/0295 , H05K2201/09145 , H05K2201/09954
摘要： A printed circuit board which has in a first edge a first notch and a second notch a first predetermined distance apart and along said first edge between said first and second notches a plurality of terminal pads in a broadside array, the first edge including a third notch spaced from the second notch and disposed a second predetermined distance, greater than the first predetermined distance, from said first notch, the board having along and adjacent the first edge between the second and third notches a second plurality of terminal pads arranged in a respective broadside array.
摘要翻译：一种印刷电路板，其在第一边缘具有第一切口和第二切口，所述第一切口和所述第二切口相隔第一预定距离，并且沿着所述第一和第二切口之间的所述第一边缘具有宽侧阵列中的多个端子焊盘，所述第一边缘包括第三切口与所述第二凹口间隔开并且设置有大于所述第一凹口的第一预定距离的第二预定距离，所述板沿所述第二凹槽和所述第二凹槽之间沿着所述第一边缘并且邻近所述第一边缘，所述第二边缘布置在相应的宽边中数组。

5. 发明授权

US07062569B2 Cascade control architecture and operation for packet-based communication systems 有权
公开(公告)号：US07062569B2
公开(公告)日：2006-06-13
申请号：US09764412
申请日：2001-01-19
申请人： Alan R Poulter , Quang T Tran , Sharon L Wiles , David J Law , Christopher A Walker
发明人： Alan R Poulter , Quang T Tran , Sharon L Wiles , David J Law , Christopher A Walker
IPC分类号： G06F15/173
CPC分类号： H04L49/351 , H04L49/40
摘要： A control device for a unit in a cascade connection of network units includes control logic which increments a count of active units and passes the count to the next control device. The count is initiated and terminated by an absence of control messages at the down port and up port respectively. The incremented count is passed up the cascade and a final count is passed down the cascade.

6. 外观设计

USD465772S1 Printed circuit board 失效
标题翻译：印刷电路板
公开(公告)号：USD465772S1
公开(公告)日：2002-11-19
申请号：US29148797
申请日：2001-09-28
申请人： Alan R Poulter , Richard N Bayfield , Bryan J Donoghue , Mark A Bobbitt , David J Law , Edward Turner
设计人： Alan R Poulter , Richard N Bayfield , Bryan J Donoghue , Mark A Bobbitt , David J Law , Edward Turner

7. 发明授权

US06975627B1 Modification of tag fields in Ethernet data packets 有权
标题翻译：以太网数据包中标签字段的修改
公开(公告)号：US06975627B1
公开(公告)日：2005-12-13
申请号：US09417102
申请日：1999-10-13
申请人： Robin Parry , Justin A Drummond-Murray , David J Law , Daniel M O'Keeffe
发明人： Robin Parry , Justin A Drummond-Murray , David J Law , Daniel M O'Keeffe
IPC分类号： H04L12/46 , H04L29/06 , H04L12/56
CPC分类号： H04L12/4666 , H04L29/06 , H04L69/22
摘要： An Ethernet data packet including a VLAN tag header and a VLAN identification field is modified. The modification is accomplished by inserting in place of the VLAN tag header a field of the same size including selected information. The VLAN identification may be retained. The inserted field may include a first field indicating the presence of the VLAN identification field and a second field of selected information, the second field being longer than the first field.
摘要翻译：修改包含VLAN标签头和VLAN标识字段的以太网数据包。通过将VLAN标签头替换为包含所选信息的相同大小的字段来实现修改。可以保留VLAN标识。所插入的字段可以包括指示VLAN识别字段的存在的第一字段和所选信息的第二字段，第二字段长于第一字段。

8. 发明授权

US08879444B2 Cascade system for network units 有权
标题翻译：级联系统为网络单元
公开(公告)号：US08879444B2
公开(公告)日：2014-11-04
申请号：US13526251
申请日：2012-06-18
申请人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maurice A Goodfellow
发明人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maurice A Goodfellow
IPC分类号： H04B7/00 , H04L12/433
CPC分类号： H04L12/433
摘要： In one embodiment, a method is described for detecting an operational failure between the network unit and an adjacent network unit in the stack; controlling the switching engine to redirect packets which would otherwise be sent from a particular port to the adjacent network unit to be forwarded from another port to be sent to a different network unit in the stack; and entering the switching engine into a bypass mode in response to control data indicating an operational failure between at least two other network units in the stack to cause packets to be forwarded without being re-directed by the switching engine.
摘要翻译：在一个实施例中，描述了一种用于检测网络单元和堆叠中的相邻网络单元之间的操作故障的方法; 控制交换引擎将否则将从特定端口发送到相邻网络单元的分组，以从要发送到堆栈中的不同网络单元的另一端口转发; 以及响应于指示所述堆叠中的至少两个其他网络单元之间的操作故障的控制数据，将所述交换引擎进入旁路模式，以使转发引擎不重新引导分组。

9. 发明授权

US06594231B1 Method and apparatus for configuration of stackable units in packet-based communications systems 失效
标题翻译：用于在基于分组的通信系统中配置可堆叠单元的方法和装置
公开(公告)号：US06594231B1
公开(公告)日：2003-07-15
申请号：US09369323
申请日：1999-08-06
申请人： Christopher Byham , David J Law , Nicholas M Stapleton , Edward Turner , Christopher Walker , David Wright
发明人： Christopher Byham , David J Law , Nicholas M Stapleton , Edward Turner , Christopher Walker , David Wright
IPC分类号： G01R3108
CPC分类号： H04L12/44 , H04L12/437
摘要： A stackable network unit comprises a ‘down’ port and an ‘up’ port, an arbitration path for data packets from the down port to the up port, a repeat path for data packets from the up port to the down port, a link detector for detecting tile absence of another operative unit connected to the down port to cause data packets on the return pat to bypass the down port and proceed on the arbitration path and for detecting the absence of another operative unit connected to the up port to cause data packets on the arbitration path to bypass the up port and proceed on the repeat path.
摘要翻译：可堆叠网络单元包括“down”端口和“up”端口，用于从down端口到up端口的数据包的仲裁路径，用于从上行端口到down端口的数据包的重复路径，链路检测器用于检测连接到下行端口的另一个操作单元的瓦片不存在，以使返回波片上的数据分组绕过下行端口并继续进行仲裁路径，并且用于检测连接到上行端口的另一个操作单元的不存在以产生数据分组在仲裁路径上绕过上行端口并继续进行重复路径。

10. 发明授权

US08213420B2 Cascade system for network units 有权
标题翻译：级联系统为网络单元
公开(公告)号：US08213420B2
公开(公告)日：2012-07-03
申请号：US11857512
申请日：2007-09-19
申请人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maunte A Goodfellow
发明人： Bryan J Donoghue , Quang T Tran , Eugene O'Neill , David J Law , Paul J Moran , Edele O'Malley , Jerome Nolan , Kam Choi , Maunte A Goodfellow
IPC分类号： H04L12/50
CPC分类号： H04L12/433
摘要： A network stack includes a plurality of network units each of which includes a multiplicity of ports for receiving and forwarding addressed data packets, at least two cascade ports and a switching engine for forwarding received packets to at least one port in accordance with address data in the packets and a cascade connection including, for each of two opposite directions around the stack, at least one unidirectional path for data packets composed of links each between a respective cascade port on a network unit and a corresponding cascade port on the next network unit.
摘要翻译：网络堆栈包括多个网络单元，每个网络单元包括用于接收和转发寻址的数据分组的多个端口，至少两个级联端口和用于根据所述数据分组中的地址数据将接收的分组转发到至少一个端口的交换引擎分组和级联连接包括针对堆叠周围的两个相反方向中的每一个，至少一个用于由网络单元上的相应级联端口和下一个网络单元上的对应级联端口之间的链路组成的数据分组的单向路径。

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