Methods and apparatus for breaking and resynchronizing a data link
    82.
    发明授权
    Methods and apparatus for breaking and resynchronizing a data link 有权
    断开和重新同步数据链路的方法和装置

    公开(公告)号:US08027270B1

    公开(公告)日:2011-09-27

    申请号:US12764171

    申请日:2010-04-21

    IPC分类号: G01R31/08

    CPC分类号: H04L7/10 H04L2007/045

    摘要: A network device including a receiver, a counter, and a trigger. The receiver is configured to receive idle code groups or false carriers from a remote device. The idle code groups indicate that there is no data to be sent from the remote device, and the false carriers indicate a fault. The counter is configured to count the at least one of the idle code groups or the false carriers detected during a predetermined period. The trigger is configured to (i) assert a first signal if the counter exceeds a predetermined threshold during the predetermined period to resynchronize the network device to the remote device and (ii) count a number of times the first signal is asserted without bringing down a link between the network device and the remote device.

    摘要翻译: 包括接收器,计数器和触发器的网络设备。 接收器被配置为从远程设备接收空闲码组或假载波。 空闲代码组表示没有要从远程设备发送的数据,而假载波指示故障。 计数器被配置为对在预定时段期间检测到的空闲代码组或错误载波中的至少一个进行计数。 触发器被配置为(i)在预定时段期间如果计数器超过预定阈值,则断言第一信号以将网络设备重新同步到远程设备,并且(ii)对第一信号被断言的次数进行计数,而不会使 网络设备和远程设备之间的链路。

    Network interface with autonegotiation and cable length measurement
    83.
    发明授权
    Network interface with autonegotiation and cable length measurement 有权
    具有自动协商和电缆长度测量的网络接口

    公开(公告)号:US08014313B1

    公开(公告)日:2011-09-06

    申请号:US12748884

    申请日:2010-03-29

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L12/26

    摘要: A physical layer device includes a transceiver module that communicates with a medium. An autonegotiation module autonegotiates one of N link capabilities with a link partner that advertises one of the link capabilities, where N is an integer greater than or equal to two. The autonegotiation module selects the advertised link capability of the link partner.

    摘要翻译: 物理层设备包括与介质通信的收发器模块。 自动协商模块自动协商N链路功能之一,其中链路伙伴可以通告其中一个链路能力,其中N是大于或等于2的整数。 自动协商模块选择链路伙伴的通告链路能力。

    Fast cable tester
    84.
    发明授权
    Fast cable tester 有权
    快速电缆测试仪

    公开(公告)号:US07986147B1

    公开(公告)日:2011-07-26

    申请号:US12897813

    申请日:2010-10-05

    申请人: William Lo

    发明人: William Lo

    IPC分类号: G01R31/11 G01R31/02

    摘要: A physical layer (PHY) device including a first transmitter, a first analog-to-digital converter (ADC) module, and a control module. The first transmitter is configured to transmit a first pulse on a first conductor of a first pair of conductors of a cable. The first ADC module is configured to generate a first set of outputs, in response to the transmission of the first pulse, by sampling an input from a second conductor of the first pair of conductors a plurality of times at a predetermined time interval. The control module is configured to determine a first distance from the PHY device to (i) an open-circuit, (ii) a short-circuit, or (iii) a termination of the first pair of conductors based on the first set of outputs.

    摘要翻译: 包括第一发射机,第一模数转换器(ADC)模块和控制模块的物理层(PHY)设备。 第一发射机被配置为在电缆的第一对导体的第一导体上传输第一脉冲。 第一ADC模块被配置为通过以预定时间间隔多次对来自第一对导体的第二导体的输入进行采样来产生响应于第一脉冲的传输的第一组输出。 控制模块被配置为基于第一组输出来确定从PHY设备到(i)开路的第一距离,(ii)短路或(iii)第一对导体的终端 。

    Reduced latency FIFO
    85.
    发明授权
    Reduced latency FIFO 有权
    减少延迟FIFO

    公开(公告)号:US07949002B1

    公开(公告)日:2011-05-24

    申请号:US12070334

    申请日:2008-02-15

    IPC分类号: H04L12/28

    摘要: A First-In-First-Out (FIFO) block to buffer a packet having a size is presented. The FIFO block includes a receiver to receive a data frame including the packet and overhead information, and to extract the packet from the data frame. A buffer has a plurality of memory locations to store the packet in a FIFO configuration. A buffer manager, in response to detecting a buffer low packet condition, stalls reads of the packet from the buffer.

    摘要翻译: 呈现先进先出(FIFO)块来缓冲具有大小的数据包。 FIFO块包括接收包括分组和开销信息的数据帧的接收器,并从数据帧中提取分组。 缓冲器具有多个存储器位置以将数据包存储在FIFO配置中。 缓冲器管理器响应于检测到缓冲器低分组条件,停止从缓冲器读取分组。

    Low power mode for a network interface
    86.
    发明授权
    Low power mode for a network interface 有权
    网络接口的低功耗模式

    公开(公告)号:US07937600B1

    公开(公告)日:2011-05-03

    申请号:US12157239

    申请日:2008-06-09

    申请人: William Lo

    发明人: William Lo

    IPC分类号: G06F1/26

    摘要: A network interface includes a medium access control (MAC) device that operates at a first voltage level during an inactive mode and a second voltage level during an active mode. A physical layer (PHY) device communicates with the MAC device and that includes an energy detect module that detects energy on a medium during the inactive mode, and an energy save module that starts timing a first period after the energy is detected and that causes the MAC device to transition to the second voltage level when the energy is detected during the inactive mode, wherein external communication with the MAC device is enabled after the first period.

    摘要翻译: 网络接口包括在非活动模式期间以第一电压电平操作的介质访问控制(MAC)设备和在活动模式期间的第二电压电平。 物理层(PHY)设备与MAC设备通信,并且其包括能量检测模块,其在非活动模式期间检测介质上的能量;以及节能模块,其在检测到能量之后开始定时第一周期,并且导致 当在非活动模式期间检测到能量时,MAC设备转变到第二电压电平,其中在第一周期之后启用与MAC设备的外部通信。

    Media and speed independent interface
    87.
    发明授权
    Media and speed independent interface 有权
    媒体和速度独立的界面

    公开(公告)号:US07760750B1

    公开(公告)日:2010-07-20

    申请号:US12152577

    申请日:2008-05-15

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L12/28 H04L12/56

    CPC分类号: H04L12/413

    摘要: A media and speed independent system for transmitting data to an external device includes a physical layer device (PHY). A rate adaptation layer (RAL) module that communicates with said PHY. A physical extension module that communicates with said RAL module and with the external device using a physical extension interface.

    摘要翻译: 用于向外部设备发送数据的媒体和速度独立系统包括物理层设备(PHY)。 与所述PHY通信的速率适配层(RAL)模块。 物理扩展模块,与所述RAL模块和使用物理扩展接口的外部设备进行通信。

    Media and speed independent interface
    88.
    发明授权
    Media and speed independent interface 有权
    媒体和速度独立的界面

    公开(公告)号:US07710998B1

    公开(公告)日:2010-05-04

    申请号:US11155394

    申请日:2005-06-17

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04J3/22

    CPC分类号: H04L47/10 H04L47/22 H04L49/90

    摘要: A media and speed independent system for transmitting Ethernet data comprises a media access controller (MAC) and a first rate adaptation layer (RAL) module that communicates with the MAC. A first physical extension module communicates with the first RAL module. A second physical extension module communicates with the first physical extension module using a physical extension interface. A second RAL module communicates with the second physical extension module. A physical layer device (PHY) communicates with the second RAL module.

    摘要翻译: 用于发送以太网数据的媒体和速度独立系统包括与MAC通信的媒体接入控制器(MAC)和第一速率适配层(RAL)模块。 第一个物理扩展模块与第一个RAL模块通信。 第二物理扩展模块使用物理扩展接口与第一物理扩展模块进行通信。 第二RAL模块与第二物理扩展模块通信。 物理层设备(PHY)与第二RAL模块通信。

    Aggregation over multiple 64-66 lanes
    89.
    发明授权
    Aggregation over multiple 64-66 lanes 有权
    多个64-66车道的聚集

    公开(公告)号:US07693226B1

    公开(公告)日:2010-04-06

    申请号:US11352806

    申请日:2006-02-13

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L27/28

    CPC分类号: G06F7/06

    摘要: An aggregation channel for providing data communication for M data streams to N data streams comprises a first first-in, first-out (FIFO) buffer module that receives the M data streams and realigns them with each other based on respective alignment symbols. A lane mapping module receives the realigned M data streams from the first FIFO buffer module and routes predetermined ones of the M data streams to predetermined ones of the N data streams, wherein each of the N data streams receives at least one of the alignment characters. M is greater than N, N is greater than 1, and each of the M data streams includes an alignment symbol.

    摘要翻译: 用于向N个数据流提供用于M个数据流的数据通信的聚合信道包括基于相应的对准符号来接收M个数据流并将它们重新对准的第一先入先出(FIFO)缓冲器模块。 车道映射模块从第一FIFO缓冲器模块接收重新排列的M个数据流,并将预定的M个数据流路由到N个数据流中的预定数据流,其中N个数据流中的每一个接收至少一个对准字符。 M大于N,N大于1,并且M个数据流中的每一个包括对准符号。

    Apparatus and method for probing integrated circuits using polarization difference probing
    90.
    发明授权
    Apparatus and method for probing integrated circuits using polarization difference probing 有权
    使用偏振差探测探测集成电路的装置和方法

    公开(公告)号:US07659981B2

    公开(公告)日:2010-02-09

    申请号:US11261996

    申请日:2005-10-27

    IPC分类号: G01B11/00

    CPC分类号: G01R31/307

    摘要: A system for probing a DUT is disclosed, the system having a pulsed laser source, a CW laser source, beam optics designed to point a reference beam and a probing beam at the same location on the DUT, optical detectors for detecting the reflected reference and probing beams, and a collection electronics. The beam optics is a common-path polarization differential probing (PDP) optics. The common-path PDP optics divides the incident laser beam into two beams of orthogonal polarization—one beam simulating a reference beam while the other simulating a probing beam. Both reference and probing beams are pointed to the same location on the DUT. Due to the intrinsic asymmetry of a CMOS transistor, the interaction of the reference and probing beams with the DUT result in different phase modulation in each beam. This difference can be investigated to study the response of the DUT to the stimulus signal.

    摘要翻译: 公开了一种用于探测DUT的系统,该系统具有脉冲激光源,CW激光源,设计用于将DUT上的相同位置处的参考光束和探测光束指向的光束光学元件,用于检测反射参考的光学检测器和 探测梁和收集电子设备。 光束光学器件是公共路径偏振微分探测(PDP)光学器件。 共轨PDP光学器件将入射激光束分成模拟参考光束的两个正交偏振光束,另一个模拟探测光束。 参考和探测光束都指向DUT上相同的位置。 由于CMOS晶体管的固有不对称性,参考光束和探测光束与DUT的相互作用导致每个光束中的不同相位调制。 可以研究这种差异来研究DUT对刺激信号的响应。