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1. 发明授权

US06412093B1 Control data link format utilizing CRC error detection 失效
标题翻译：控制数据链路格式利用CRC错误检测
公开(公告)号：US06412093B1
公开(公告)日：2002-06-25
申请号：US09474321
申请日：1999-12-29
申请人： Merico Edward Argentati , James R. Bortolini , Fernand Da Fonseca , Scott E. Farleigh , David John Hudak , Floyd Craig Wolverton
发明人： Merico Edward Argentati , James R. Bortolini , Fernand Da Fonseca , Scott E. Farleigh , David John Hudak , Floyd Craig Wolverton
IPC分类号： H03M1309
CPC分类号： H04L1/0061 , H03M13/091 , H04Q11/0421 , H04Q2213/13003 , H04Q2213/13174 , H04Q2213/13213 , H04Q2213/13215 , H04Q2213/13216 , H04Q2213/13305 , H04Q2213/1332 , H04Q2213/13322
摘要： Control data is communicated utilizing a multi-frame format that consists of individual frames each having a number of rows and columns. As each row is received from a transmitting unit, the data and position of the row within a frame is verified by use of a checksum and is immediately utilized by the receiving unit. This reduces the amount of storage that must be provided by the receiving unit for the reception of control information to that of a single row. In addition to verifying the row identification, the identity of each frame within the multi-frame is also verified before an individual row is utilized. In a first embodiment, the operation of generating the checksum is seeded with the current row number. In a second embodiment, the operation of generating the checksum is seeded with the result of an Exclusive OR operation of the current row number and frame number.
摘要翻译：控制数据利用多帧格式进行通信，该多帧格式由各自具有多个行和列的各个帧组成。当从发送单元接收到每一行时，通过使用校验和来验证帧内的行的数据和位置，并被接收单元立即使用。这减少了接收单元必须提供的用于接收控制信息到单行的存储量。除了验证行识别之外，还在使用单个行之前验证多帧内的每个帧的身份。在第一实施例中，生成校验和的操作用当前行号接种。在第二实施例中，产生校验和的操作是用当前行号和帧号的异或运算的结果种子。

2. 发明授权

US5754120A Network congestion measurement method and apparatus 失效
标题翻译：网络拥塞测量方法及装置
公开(公告)号：US5754120A
公开(公告)日：1998-05-19
申请号：US576411
申请日：1995-12-21
申请人： Merico Edward Argentati
发明人： Merico Edward Argentati
IPC分类号： H04Q3/52 , H04L12/56 , H04M3/36 , H04Q3/68 , H04Q11/04 , H04Q1/00
CPC分类号： H04M3/36 , H04L49/25 , H04Q3/68 , H04J2203/0012 , H04L49/1515 , H04L49/201 , H04L49/254 , H04Q2213/13164 , H04Q2213/13166 , H04Q2213/1334
摘要： A communication system including a CLOS switching network, and a method for characterizing network capacity, usage, congestion, and blocking and/or near blocking states. The CLOS switching network includes input, center and output stages each comprised of at least one switch, a plurality of first links connecting each input stage switch to each of the center stage switches, and a plurality of second links connecting each center stage switch to each of the output stage switches. The system also comprises a controller for determining the idle/busy status of each of the first and second links, and for calculating a measurement of available paths between each of the input stage switches to each of the output stage switches based on the status of the first and second links. In one embodiment of the method according to the present invention, the status of each link is determined and the measurement of available paths is checked prior to executing a routing algorithm to determine the path or paths that can be utilized to satisfy a communication request received by the system. Use of the system and method of the present invention permits for characterization of network capacity, usage, congestion, and blocking and/or near blocking states, and may also result in improved efficiency by avoiding complex routing calculations in no paths or only limited paths are available to satisfy the communication request.
摘要翻译：一种包括CLOS交换网络的通信系统以及用于表征网络容量，使用，拥塞以及阻塞和/或接近阻塞状态的方法。 CLOS交换网络包括输入，中心和输出级，每个包括至少一个开关，将每个输入级开关连接到每个中心级开关的多个第一链路以及将每个中心级开关连接到每个中心级开关的多个第二链路的输出级开关。该系统还包括用于确定第一和第二链路中的每一个的空闲/忙碌状态的控制器，并且用于基于所述第一和第二链路的状态来计算到每个输出级交换机的每个输入级交换机之间的可用路径的测量值第一和第二个链接。在根据本发明的方法的一个实施例中，确定每个链路的状态，并且在执行路由算法之前检查可用路径的测量，以确定可被利用以满足由系统。使用本发明的系统和方法允许表征网络容量，使用，拥塞以及阻塞和/或接近阻塞状态，并且还可以通过避免无路径中的复杂路由计算而导致提高的效率，或者仅限于有限的路径可用于满足通信请求。

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