Methods and apparatus for asynchronous serial channel connections in communication systems
    1.
    发明授权
    Methods and apparatus for asynchronous serial channel connections in communication systems 有权
    通信系统中异步串行通道连接的方法和装置

    公开(公告)号:US07688924B2

    公开(公告)日:2010-03-30

    申请号:US11089216

    申请日:2005-03-24

    摘要: An integrated circuit device for use in a node of a communication system is provided. The integrated circuit device includes a memory configured to store data written thereto by a receiver associated with the node in accordance with a receiver clock, and to read data therefrom by a transmitter associated with the node in accordance with a transmitter clock. The integrated circuit device also includes a control logic circuit that is in communication with the memory, and is configured to send a control signal to the transmitter to adjust a speed of the transmitter clock responsive to an operating condition of the memory.

    摘要翻译: 提供一种在通信系统的节点中使用的集成电路装置。 集成电路装置包括被配置为存储由根据接收机时钟与节点相关联的接收机写入的数据的存储器,并且根据发射机时钟由与节点相关联的发射机从其读取数据。 集成电路装置还包括与存储器通信的控制逻辑电路,并且被配置为响应于存储器的操作条件向发射器发送控制信号以调整发射机时钟的速度。

    Multilevel amplitude modulated signaling in fibre channel
    2.
    发明授权
    Multilevel amplitude modulated signaling in fibre channel 有权
    光纤通道中的多电平幅度调制信号

    公开(公告)号:US07477849B2

    公开(公告)日:2009-01-13

    申请号:US10998679

    申请日:2004-11-29

    IPC分类号: H04B10/02

    摘要: In a communication system comprising first and second nodes, a multilevel amplitude modulated signaling technique is utilized. The first and second nodes may communicate over a Fibre Channel link or other medium. The first and second nodes comprise respective transmitter and receiver pairs, with the transmitter of the first node configured for communication with the receiver of the second node and the receiver of the first node configured for communication with the transmitter of the second node. The first node is configured to generate a signal for transmission over a serial data channel to the second node, the signal having a multilevel amplitude modulated format in which, within a given clock cycle of the signal, multiple bits are represented by a given signal level.

    摘要翻译: 在包括第一和第二节点的通信系统中,利用多电平幅度调制信令技术。 第一和第二节点可以通过光纤通道链路或其他介质进行通信。 第一和第二节点包括相应的发射机和接收机对,其中第一节点的发射机被配置用于与第二节点的接收机进行通信,并且第一节点的接收机被配置用于与第二节点的发射机进行通信。 第一节点被配置为生成用于通过串行数据信道传输到第二节点的信号,该信号具有多电平幅度调制格式,其中在信号的给定时钟周期内,多个比特由给定的信号电平 。

    Transmit adaptive equalization using ordered sets
    3.
    发明授权
    Transmit adaptive equalization using ordered sets 有权
    使用有序集发送自适应均衡

    公开(公告)号:US07516226B2

    公开(公告)日:2009-04-07

    申请号:US10955997

    申请日:2004-09-30

    IPC分类号: G06F15/16

    CPC分类号: H04B10/0779 H04B10/07

    摘要: In a communication system comprising first and second nodes, a transmit adaptive equalization technique is implemented utilizing ordered sets. The first and second nodes may communicate over a Fiber Channel link or other medium. The first and second nodes comprise respective transmitter and receiver pairs, with the transmitter of the first node configured for communication with the receiver of the second node and the receiver of the first node configured for communication with the transmitter of the second node. The first node is operative to receive from the second node information specifying an adjustment to one or more equalization parameters of the first node. The information is received in designated portions of one or more ordered sets transmitted from the second node to the first node in conjunction with initialization of a communication link between the first and second nodes. The first node adjusts the equalization parameter(s) in accordance with the received information.

    摘要翻译: 在包括第一和第二节点的通信系统中,利用有序集来实现发射自适应均衡技术。 第一和第二节点可以通过光纤通道链路或其他介质进行通信。 第一和第二节点包括相应的发射机和接收机对,其中第一节点的发射机被配置用于与第二节点的接收机进行通信,并且第一节点的接收机被配置用于与第二节点的发射机进行通信。 第一节点可操作以从第二节点接收指定对第一节点的一个或多个均衡参数的调整的信息。 结合第一和​​第二节点之间的通信链路的初始化,在从第二节点发送到第一节点的一个或多个有序集合的指定部分中接收信息。 第一节点根据接收到的信息调整均衡参数。

    Offset test pattern apparatus and method
    4.
    发明授权
    Offset test pattern apparatus and method 失效
    偏移测试图案设备和方法

    公开(公告)号:US07447965B2

    公开(公告)日:2008-11-04

    申请号:US11121164

    申请日:2005-05-03

    IPC分类号: G01R31/28 G06F11/00

    CPC分类号: H04L1/244

    摘要: Communications equipment can be tested using a test pattern encapsulated within a frame, and offsetting the test pattern in each successive frame. In equipment having a number of data latches receiving serial input, the introduction of the offset allows each latch, over time, to be exposed to the same pattern as the other latches. That is, the latches “see” different portions of the pattern at a given time, but over time, each can be exposed to the full pattern. Otherwise, each latch would “see” its own static pattern, different from the other latches, but the same over time with respect to itself. The offset can enhance diagnostic capabilities of the test pattern.

    摘要翻译: 可以使用封装在帧内的测试图案来测试通信设备,并且在每个连续帧中抵消测试模式。 在具有接收串行输入的多个数据锁存器的设备中,引入偏移允许每个锁存器随时间暴露于与其他锁存器相同的模式。 也就是说,锁定器在给定时间“看到”图案的不同部分,但是随着时间的推移,每个可以暴露于完整图案。 否则,每个锁存器将“看到”其自己的静态模式,与其他锁存器不同,但是相对于自身而言随着时间的推移相同。 该偏移可以增强测试图案的诊断功能。

    Transmit adaptive equalization for communication system with one or more serial data channels
    5.
    发明授权
    Transmit adaptive equalization for communication system with one or more serial data channels 有权
    发送具有一个或多个串行数据信道的通信系统的自适应均衡

    公开(公告)号:US07443798B2

    公开(公告)日:2008-10-28

    申请号:US10933708

    申请日:2004-09-03

    IPC分类号: G01R31/08

    摘要: In a communication system comprising first and second nodes, a transmit adaptive equalization technique is implemented. The first and second nodes may communicate over a Fiber Channel link or other medium. The first and second nodes comprise respective transmitter and receiver pairs, with the transmitter of the first node configured for communication with the receiver of the second node and the receiver of the first node configured for communication with the transmitter of the second node. The first node receiver is operative to receive from the second node transmitter, responsive to a signal transmitted by the first node transmitter to the second node receiver, information specifying an adjustment to one or more equalization parameters of the first node transmitter. The first node adjusts the equalization parameter(s) in accordance with the received information.

    摘要翻译: 在包括第一和第二节点的通信系统中,实现了发射自适应均衡技术。 第一和第二节点可以通过光纤通道链路或其他介质进行通信。 第一和第二节点包括相应的发射机和接收机对,其中第一节点的发射机被配置用于与第二节点的接收机进行通信,并且第一节点的接收机被配置用于与第二节点的发射机进行通信。 响应于由第一节点发射机向第二节点接收机发送的信号,第一节点接收机可操作以从第二节点发射机接收指定对第一节点发射机的一个或多个均衡参数的调整的信息。 第一节点根据接收到的信息调整均衡参数。

    Exploitive test pattern apparatus and method
    6.
    发明授权
    Exploitive test pattern apparatus and method 失效
    利用测试图案设备和方法

    公开(公告)号:US07272756B2

    公开(公告)日:2007-09-18

    申请号:US11121152

    申请日:2005-05-03

    IPC分类号: G01R31/28

    CPC分类号: H04L1/244 H04L43/50

    摘要: Communications equipment can be tested using a test pattern that is modified compared to, and more exploitive than, a standard test pattern. Test patterns can be employed that have lengthened or shortened consecutive identical digit (CID) portions, or that have lengthened or shortened pseudo random bit sequence (PRBS) portions. In some cases, PRBS polynomials are not re-seeded after each CID. Further, different order polynomials can be employed for different applications. Exemplary applications can include test equipment and built-in self-test capability for integrated circuits.

    摘要翻译: 通信设备可以使用与标准测试模式相比修改的测试模式进行测试,并且比标准测试模式更具有潜力。 可以采用具有延长或缩短连续相同数字(CID)部分或具有延长或缩短的伪随机位序列(PRBS)部分的测试模式。 在某些情况下,在每个CID之后,PRBS多项式不再重播。 此外,不同的阶多项式可以用于不同的应用。 示例性应用可以包括测试设备和用于集成电路的内置自检能力。