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    • 41. 发明授权
    • Memory statistics counter and method for counting the number of accesses to a portion of memory
    • 存储器统计计数器和用于计数对存储器的一部分的访问次数的方法
    • US06415363B1
    • 2002-07-02
    • US09512407
    • 2000-02-24
    • Alain BenayounPatrick MichelJean-Francois Le PennecMichel Verhaeghe
    • Alain BenayounPatrick MichelJean-Francois Le PennecMichel Verhaeghe
    • G06F1300
    • G06F11/3409G06F11/348G06F2201/88
    • A memory statistic counter and method for counting the number of accesses (writes or reads) by a microprocessor (10) to at least a portion of a memory comprising a decoding logic unit (16) for providing a selection signal for selecting the portion of memory in response to control signals from the microprocessor, and adding logic units (18, 20, 22). The memory statistic counter includes a register which is incremented each time the portion of memory is accessed by the microprocessor and providing a registration signal when the number of accesses is equal to a predetermined number, and a queuing unit (44) for registering a value in a registering memory (50), such as a first-in-first-out (FIFO) memory, in response to the registration signal and providing an interrupt signal to the microprocessor when all locations of the registering memory have been filled, thereby indicating to the microprocessor that a defined number of accesses to the portion of memory has occurred.
    • 一种存储器统计计数器和方法,用于将由微处理器(10)接收(写入或读取)的数量计数到包括解码逻辑单元(16)的存储器的至少一部分,用于提供用于选择存储器部分的选择信号 响应于来自微处理器的控制信号,以及添加逻辑单元(18,20,22)。 存储器统计计数器包括每当存储器部分被微处理器访问并且当访问次数等于预定数量时提供注册信号而递增的寄存器,以及用于将值存储在其中的排队单元(44) 诸如先入先出(FIFO)存储器的登记存储器(50),其响应于所述注册信号,并且在所述注册存储器的所有位置已经被填充时向微处理器提供中断信号,由此指示 对存储器部分的定义数量的访问已经发生的微处理器。
    • 42. 发明授权
    • Method and apparatus for efficiently transporting asynchronous characters over an ATM network
    • 用于在ATM网络上有效地传送异步字符的方法和装置
    • US06256323B1
    • 2001-07-03
    • US09052286
    • 1998-03-31
    • Alain BenayounPatrick MichelMaurice DuaultJean-Francois Le Pennec
    • Alain BenayounPatrick MichelMaurice DuaultJean-Francois Le Pennec
    • H04J326
    • H04Q11/0478H04L7/041H04L2012/5653
    • Method of processing asynchronous characters in order to transmit them over an ATM network (10, 12 or 16) of a communication system having a first endpoint (36) and a second endpoint (38), a first group of one or more Data Terminal Equipments (DTE) being connected to the first endpoint and a second group of one or more DTE's being connected to the second endpoint and wherein data are transmitted from the first group of DTE's to the second group of DTE's by the intermediary of the ATM network. Asynchronous characters are processed as they are received at the first endpoint from the first group of DTE's by removing Start, Stop and parity bits. A block is generated consisting of one or more processed asynchronous characters received in sequence from a particular DTE of the first group of DTE's. An ID byte is added to the block to identify the transmitting DTE, yielding a data unit. A plurality of such data units are concatenated to build a data unit frame. The data unit frame is encapsulated into an ATM cell structure in order to transmit the frame over the ATM network.
    • 处理异步字符以便通过具有第一端点(36)和第二端点(38)的通信系统的ATM网络(10,12或16)进行处理的方法,第一组一个或多个数据终端设备 (DTE)连接到所述第一端点,并且第二组一个或多个DTE连接到所述第二端点,并且其中数据通过所述ATM网络的媒介从所述第一DTE组发送到所述第二组DTE。 在从第一组DTE通过删除启动,停止和奇偶校验位在第一个端点处接收到异步字符。 产生一个块,其由从第一组DTE的特定DTE顺序接收的一个或多个经处理的异步字符组成。 将ID字节添加到块以识别发送DTE,产生数据单元。 多个这样的数据单元被级联以建立数据单元框架。 数据单元帧被封装成ATM信元结构,以便通过ATM网络发送帧。
    • 44. 发明授权
    • Method and apparatus for G.706 frame alignment and CRC procedure test
tool
    • G.706帧校准和CRC程序测试工具的方法和装置
    • US06128761A
    • 2000-10-03
    • US986830
    • 1997-12-08
    • Alain BenayounJean-Francois Le PennecPatrick MichelJean-Louis ClaraJacques Cresp
    • Alain BenayounJean-Francois Le PennecPatrick MichelJean-Louis ClaraJacques Cresp
    • H04J3/06H04J3/14H04L7/04H03M13/00
    • H04J3/14H04J3/06H04L7/042
    • This invention describes a test tool based on a PC workstation. This test tool is used to validate any E1 framing telecommunication device. In order to comply with the CCITT G.706 recommendations, a device has to pass a series of test cases that are predetermined. Each test case contains test sequences according to the CCITT G.706 specifications. The purpose of this test tool is to generate a set of stimuli in the transmission mode, whereas in the reception mode, the value of the data returned by the tested device is analyzed and compared with the expected response. The data bytes are structured as for E1 multiframe format containing 16 frames of 32 timeslots, where each timeslot is a data byte. According to the G.706 recommendations, timeslot 0 is dedicated to the frame and multiframe alignment and to the CRC test. The test tool enables generating of the content of the 8-bit timeslot 0 of each frame and therefore modifying the frame alignment, the multiframe alignment and the CRC procedure test tool; and storing the content of the received 8-bit timeslot 0 to monitor the remote alarm indication bit (`A` bit) reflecting the behavior of the tested device so as to determine whether this latter conforms to the CCITT G.706 recommendations.
    • 本发明描述了一种基于PC工作站的测试工具。 该测试工具用于验证任何E1成帧电信设备。 为了符合CCITT G.706建议,设备必须通过一系列预先确定的测试用例。 每个测试用例都包含根据CCITT G.706规范的测试序列。 该测试工具的目的是在传输模式中产生一组刺激,而在接收模式下,对被测设备返回的数据值进行分析并与预期响应进行比较。 数据字节被构造为包含32个时隙的16个帧的E1复帧格式,其中每个时隙是数据字节。 根据G.706建议,时隙0专用于帧和多帧对准以及CRC测试。 该测试工具能够生成每个帧的8位时隙0的内容,从而修改帧对齐,多帧对准和CRC过程测试工具; 并存储接收的8位时隙0的内容以监视反映被测设备的行为的远程报警指示位('A'位),以便确定后者是否符合CCITT G.706建议。
    • 46. 发明授权
    • Method and system for routing massages in a multi-node data
communication network
    • 用于在多节点数据通信网络中路由消息的方法和系统
    • US5771227A
    • 1998-06-23
    • US612712
    • 1996-03-08
    • Alain BenayounJean-Francois Le PennecPatrick MichelGerard Brun
    • Alain BenayounJean-Francois Le PennecPatrick MichelGerard Brun
    • H04L12/54H04L12/70H04L12/701H04L12/933H04L12/947H04J3/24H04L12/56
    • H04L12/5601H04L45/00H04L49/107H04L49/256H04L2012/567H04L2012/5679
    • The invention relates to a method and a system for routing messages or frames through network nodes connected to each other by network links and connected to a plurality of terminals by different input/output ports also called network attachment cards (NAC) in a multi-node communication network. In such a configuration, each terminal equipment stores a network table. The network table is updated in the terminal itself by a network manager which may by the way limit the access of the terminal to some terminals of the network. To route an incoming message or frame from a source terminal (T1) to the destination terminal (T7), a routing algorithm is implemented in each NAC. Each NAC has a different and unique integer address in the node, each node has a different and unique prime number address greater than the number of NACs in the node. Each terminal connected to a node sends frames with a routing identifier (RI). The different RIs are located in the network table. When an input NAC receives a frame, the routing algorithm computes the address of the output NAC given by the remainder of the division of the RI by the node address, then this output NAC sends the frames onto its network link. This process is performed in each node until the destination terminal is reached. The RI is kept unchanged during the frame transmission. A timer is also used to test if the frame is received because a network link may be down. In such case, an alternate RI is used to take an alternate route.
    • 本发明涉及一种方法和系统,用于通过网络链路彼此连接的网络节点路由消息或帧,并通过多节点中也称为网络附加卡(NAC)的不同输入/输出端口连接到多个终端 通讯网络 在这种配置中,每个终端设备存储网络表。 网络表在终端本身由网络管理器更新,网络管理器可以限制终端对网络的某些终端的访问。 为了将来自源终端(T1)的输入消息或帧路由到目的终端(T7),在每个NAC中实现路由算法。 每个NAC在节点中具有不同且唯一的整数地址,每个节点具有大于节点中NAC个数的不同且唯一的素数地址。 连接到节点的每个终端发送具有路由标识符(RI)的帧。 不同的RI位于网络表中。 当输入NAC接收到帧时,路由算法计算由RI的除法余数由节点地址给出的输出NAC的地址,则该输出NAC将帧发送到其网络链路上。 在每个节点中执行该过程,直到达到目标终端。 在帧传输期间,RI保持不变。 定时器也用于测试帧是否被接收,因为网络链路可能会关闭。 在这种情况下,替代的RI用于采取替代路由。
    • 49. 发明授权
    • Automatic rate adaptation system in a local area network
    • 局域网自动速率调整系统
    • US06789130B1
    • 2004-09-07
    • US09571681
    • 2000-05-16
    • Alain BenayounJean-Francois Le PennecMichel VerhaeghePatrick Michel
    • Alain BenayounJean-Francois Le PennecMichel VerhaeghePatrick Michel
    • G06F1516
    • H04L12/5602
    • Automatic speed adaptation system in a Local Area Network (LAN) between a hub (10) including a hub adapter (20, 24, 28) and at least a workstation (12, 14, 16) including a workstation adapter (18, 22, 26) for exchanging data over a link connected between the hub adapter and the workstation adapter at a rate based on a frequency which is inversely proportional to the length of the link. Each adapter comprises a clock generator for generating a clock having a frequency between F1 and F2 and processing means for transmitting at least a check frame from the hub adapter to the workstation adapter at a rate based on a frequency VCLK generated by the clock generator under the control of the processing means and selected as being the frequency corresponding to the length of the link, and for transmitting an acknowledge frame from the workstation adapter to the hub adapter thereby ascertaining that the selected frequency is the right frequency resulting in the best quality of transmission.
    • 在包括轮毂适配器(20,24,28)的轮毂(10)和至少包括工作站适配器(18,22)的工作站(12,14,16)之间的局域网(LAN)中的自动速度适配系统, 26),用于以基于与链路的长度成反比的频率的速率通过连接在中继适配器和工作站适配器之间的链路交换数据。 每个适配器包括用于产生具有F1和F2之间的频率的时钟的时钟发生器和用于以基于由时钟发生器下的时钟发生器产生的频率VCLK的速率从集线器适配器至工作站适配器发送至少一个校验帧的处理装置 处理装置的控制并被选择为对应于链路的长度的频率,并且用于将确认帧从工作站适配器发送到集线器适配器,从而确定所选择的频率是合适的频率,从而产生最佳传输质量 。