公开(公告)号：US06223149B1

公开(公告)日：2001-04-24

申请号：US09085918

申请日：1998-05-28

申请人： David Margulis ,  Sarit Shani ,  Haim Rochberger ,  Gonen Ziv-Av

发明人： David Margulis ,  Sarit Shani ,  Haim Rochberger ,  Gonen Ziv-Av

IPC分类号： H04J116

CPC分类号： H04L12/4608 ,  H04L2012/5617 ,  H04L2012/5627 ,  H04L2012/5651 ,  H04Q11/0478

摘要： A method of providing redundancy in a LAN Emulation network in the event an LES fails. The method is light in that it does not require complicated database synchronizations between LECSs and their associated complex message protocol exchanges. The method comprises defining a plurality of LESs per ELAN, but permitting only one of the LESs to be active at any one moment in time. All the LECSs are configured with the same Topology Database which include the all the potential LESs for each ELAN. The LECSs try to connect to each LES and the results are logged. The operative LESs having the highest priority is chosen as the active LES whereby all LECs get assigned to the active LES. When the active LES fails the LECs attempt a new connection to LECs. The LECs assigns the LECs to another operative LES in the database list. All the LECs previously connected to the failed LES, are attached to the new LES assigned by the LECs and communications are reestablished with the new LES. Splits are handles by having the LECs choose the LES with the highest priority to be the new active LES and sending a message to all the other LESs instructing them to disconnect their attached LECs. This causes the LECs to re-attach to the active LES.

摘要翻译： 在LES发生故障的情况下，在LAN仿真网络中提供冗余的方法。 该方法很简单，因为它不需要LECS与其相关联的复杂消息协议交换之间的复杂数据库同步。 该方法包括定义每个ELAN的多个LES，但是在任何一个时刻只允许一个LES活动。 所有LECS都配置有相同的拓扑数据库，其中包括每个ELAN的所有潜在的LES。 LECS尝试连接到每个LES并记录结果。 具有最高优先级的操作LES被选择为活动LES，由此所有LEC被分配给活动LES。 当活动的LES失败时，LEC尝试与LEC的新连接。 LEC将LEC分配给数据库列表中的另一个可操作的LES。 以前连接到失败的LES的所有LEC都附加到由LEC分配的新的LES，并且通信被重新建立与新的LES。 通过使LEC选择具有最高优先级的LES作为新的活动LES并向所有其他LES发送消息以指示它们断开其连接的LEC的分离是分开的。 这导致LEC重新附加到活动的LES。

公开(公告)号：US07436808B2

公开(公告)日：2008-10-14

申请号：US10313677

申请日：2002-12-06

申请人： Erez Geva ,  Oded Shaashua ,  Gonen Ziv-Av

发明人： Erez Geva ,  Oded Shaashua ,  Gonen Ziv-Av

IPC分类号： H04B7/212 ,  H04J3/00

CPC分类号： H04L12/6418 ,  H04W74/04

摘要： A transmitting unit for use in sending data in packets in timeslots within time frames, each packet being sent in a timeslot, the unit comprising means to reserve for uplink transmission in the next uplink time frame a number of timeslots (X), the number of timeslots (X) being determined dependent upon a value which is the number of timeslots (Y) used for uplink transmission in the previous uplink time frame plus the number of packets (Z) remaining for uplink transmission during the last time frame minus the number of time slots (Q) to be used in the present uplink time frame.

摘要翻译： 一种用于在时间帧内的时隙中以数据包发送数据的发送单元，每个分组在时隙中发送，所述单元包括在下一个上行链路时间帧中预留用于上行链路传输的多个时隙（X）的数量， 时隙（X）取决于在先前的上行链路时间帧中用于上行链路传输的时隙（Y）的数量的值，以及在最后时间帧期间上行链路传输剩余的分组数量（Z）减去数量 时隙（Q）用于当前的上行链路时间帧。

公开(公告)号：US5452465A

公开(公告)日：1995-09-19

申请号：US009174

申请日：1993-01-26

申请人： Haim Geller ,  Abel Liorah ,  Gonen Ziv-Av ,  Yitzhak Cohen

发明人： Haim Geller ,  Abel Liorah ,  Gonen Ziv-Av ,  Yitzhak Cohen

IPC分类号： H04Q9/14 ,  G06F13/10 ,  G06F12/00

CPC分类号： H04Q9/14

摘要： This invention relates to a supervisory control and data acquisition (SCADA) system in which a central station (10) sends control information to, and acquires information from remote stations (11, 12) over a wire, radio or other link. Each station comprises a tabular memory (15-18) comprising storage locations in an `x` direction for storing data relating to different elements of the second system and storage locations in a `y` direction for storing data relating to different parameters of those elements. Transmitting means are provided for transmitting a message from one unit to the other unit, said message comprising an `x` part, a `y` part and a qualifier, for reading from and writing to storage locations in the tabular memory of the other unit depending on the result of a logical operation defined by the qualifier. The tabular memory can equally be considered to have a tree-like structure.

摘要翻译： 本发明涉及一种监控和数据采集（SCADA）系统，其中中心站（10）通过有线，无线电或其他链路向远程站（11,12）发送控制信息并从远程站（11,12）获取信息。 每个站包括一个表格式存储器（15-18），其包括在“x”方向上的存储位置，用于存储与第二系统的不同元件相关的数据和沿“y”方向的存储位置，用于存储与这些元件的不同参数有关的数据 。 提供发送装置用于将消息从一个单元发送到另一个单元，所述消息包括用于从另一个单元的表格存储器中读取和写入存储位置的“x”部分，“y”部分和限定符 取决于由限定符定义的逻辑运算的结果。 平板记忆体可以同样被认为具有树状结构。