Low Power Mode for a Network Interface
    11.
    发明申请
    Low Power Mode for a Network Interface 有权
    网络接口的低功耗模式

    公开(公告)号:US20110208985A1

    公开(公告)日:2011-08-25

    申请号:US13099947

    申请日:2011-05-03

    申请人: William Lo

    发明人: William Lo

    IPC分类号: G06F1/32

    摘要: A network interface including: a medium access control device configured to operate at a first power state during an inactive power mode, and operate at a second power state during an active power mode; a physical layer device including (i) an energy detect module configured to detect energy on a medium during the inactive power mode, and (ii) an energy save module configured to time a first pre-determined period subsequent to the energy detect module detecting energy on the medium. The medium access control device is further configured to, subsequent to the energy detect module detecting energy on the medium, transition to the second power state of the active power mode, and communication with the medium access control device via the medium is enabled subsequent to expiration of the first pre-determined period.

    摘要翻译: 一种网络接口,包括:媒体接入控制装置,被配置为在无功功率模式期间在第一功率状态下操作,并且在有功功率模式期间在第二功率状态下操作; 物理层设备,包括:(i)能量检测模块,其被配置为在所述非活动功率模式期间检测介质上的能量;以及(ii)能量保存模块,其被配置为在所述能量检测模块检测能量之后的第一预定时段 在媒体上 所述介质访问控制装置还被配置为在所述能量检测模块检测到所述介质上的能量之后,转换到所述有功功率模式的第二功率状态,并且经过所述介质与所述介质访问控制装置经由所述介质的通信被启用 的第一个预定时期。

    Reduced pin gigabit media independent interface
    12.
    发明授权
    Reduced pin gigabit media independent interface 有权
    降低千兆以太网媒体独立接口

    公开(公告)号:US07983259B1

    公开(公告)日:2011-07-19

    申请号:US12837152

    申请日:2010-07-15

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L27/04 H04L12/50

    摘要: A medium access control (MAC) device includes a first set of transmit pins, a second set of transmit pins, and a first encoder. The first set receives (i) first transmit data signals and (ii) first transmit control signals from a host. The first transmit data signals are received on a first subset of the first set. The second set outputs (i) second transmit data signals and (ii) second transmit control signals to a physical layer (PHY) device. The second transmit data signals are output on a second subset of the second set. The second subset includes fewer transmit pins than the first subset. The first encoder encodes two of the first transmit control signals received on two of the first set of transmit pins to generate one of the second transmit control signals output on one of the second set of transmit pins.

    摘要翻译: 介质访问控制(MAC)设备包括第一组发送引脚,第二组发送引脚和第一编码器。 第一组接收(i)首先发送数据信号和(ii)首先从主机发送控制信号。 在第一组的第一子集上接收第一发送数据信号。 第二组输出(i)第二发送数据信号和(ii)第二发送控制信号到物理层(PHY)设备。 第二发送数据信号在第二组的第二子集上输出。 第二子集包括比第一子集更少的发送引脚。 第一编码器编码在第一组发射引脚中的两个上接收的第一发射控制信号中的两个,以产生在第二组发射引脚之一上输出的第二发射控制信号之一。

    Apparatus and method for automatic speed downshift for a two pair cable
    13.
    发明授权
    Apparatus and method for automatic speed downshift for a two pair cable 有权
    两对电缆自动减速装置及方法

    公开(公告)号:US07979587B1

    公开(公告)日:2011-07-12

    申请号:US12624522

    申请日:2009-11-24

    申请人: William Lo

    发明人: William Lo

    IPC分类号: G06F15/16

    CPC分类号: H04L12/40136

    摘要: A physical layer of a device is connected to a plurality of twisted pairs of wire. The physical layer includes an autonegotiation controller that initially advertises a plurality of operating speeds associated with the device and receives a request for the device to operate at a first operating speed. A cable detector determines whether the physical layer is connected to a sufficient number of twisted pair wires to support the first operating speed. A speed adjuster alters the plurality of operating speeds advertised by the autonegotiation controller in response to the physical layer not being connected to a sufficient number of twisted pair wires to support the first operating speed. The speed adjuster alters the plurality of operating speeds advertised by the autonegotiation controller by masking one of the plurality of operating speeds corresponding to the first operating speed.

    摘要翻译: 设备的物理层连接到多条双绞线对。 物理层包括自动协商控制器,其最初通告与设备相关联的多个操作速度并且接收对设备以第一操作速度操作的请求。 电缆检测器确定物理层是否连接到足够数量的双绞线以支持第一操作速度。 响应于物理层不连接到足够数量的双绞线以支持第一操作速度,速度调节器改变由自动协商控制器发布的多个操作速度。 速度调节器通过掩蔽与第一操作速度相对应的多个操作速度中的一个来改变由自动协商控制器发布的多个操作速度。

    Method and apparatus for selecting a media for communication in a network
    14.
    发明授权
    Method and apparatus for selecting a media for communication in a network 有权
    用于选择用于网络中的通信的媒体的方法和装置

    公开(公告)号:US07907605B1

    公开(公告)日:2011-03-15

    申请号:US12644483

    申请日:2009-12-22

    申请人: Daryl Hoot William Lo

    发明人: Daryl Hoot William Lo

    IPC分类号: H04L12/50 H04J3/16

    摘要: A method and apparatus for selecting a media for communication in a network. The method includes (i) using a first autonegotiation circuit to attempt to establish a link over a first media of a first type, and (ii) simultaneously using a second autonegotiation circuit to attempt to establish a link over a second media of a second type, the second type being different from the first type. In response to establishing the link over the first media prior to establishing the link over the second media, the second autonegotiation circuit is powered down. In response to establishing the link over the second media prior to establishing the link over the first media, the first autonegotiation circuit is powered down.

    摘要翻译: 一种用于选择用于网络中的通信的媒体的方法和装置。 该方法包括:(i)使用第一自动协商电路尝试在第一类型的第一媒体上建立链路,以及(ii)同时使用第二自动协商电路尝试在第二类型的第二媒体上建立链路 ,第二类型与第一类型不同。 响应于在通过第二媒体建立链路之前在第一媒体上建立链路,第二自动协商电路被断电。 响应于在通过第一媒体建立链路之前在第二媒体上建立链路,第一自动协商电路被断电。

    Physical-layer device management for network switches
    15.
    发明授权
    Physical-layer device management for network switches 有权
    网络交换机的物理层设备管理

    公开(公告)号:US07852768B1

    公开(公告)日:2010-12-14

    申请号:US11893424

    申请日:2007-08-16

    IPC分类号: H04L12/26

    CPC分类号: H04L49/65 H04L41/00

    摘要: A request frame for use in managing a physical-layer device (PHY) comprises a preamble; a start frame delimiter for the frame; a destination media access control (MAC) address for the frame, wherein the destination MAC address is stored in the PHY; a source MAC address for the frame; a length/type for the frame, wherein the length/type is stored in the PHY; remote management data comprising one or more commands to be executed by the PHY; and a frame check sequence for the frame. A response frame comprises a preamble; a start frame delimiter for the frame; a destination MAC address for the frame; a source MAC address for the frame; a length/type for the frame, wherein the length/type is stored in the PHY; remote management data comprising a response to a command from a management device having the destination MAC address; and a frame check sequence for the frame.

    摘要翻译: 用于管理物理层设备(PHY)的请求帧包括前同步码; 帧的起始帧分隔符; 用于所述帧的目的地媒体访问控制(MAC)地址,其中所述目的地MAC地址存储在所述PHY中; 帧的源MAC地址; 帧的长度/类型,其中长度/类型存储在PHY中; 远程管理数据包括由PHY执行的一个或多个命令; 以及帧的帧校验序列。 响应帧包括前同步码; 帧的起始帧分隔符; 帧的目的MAC地址; 帧的源MAC地址; 帧的长度/类型,其中长度/类型存储在PHY中; 远程管理数据包括对具有目的地MAC地址的管理设备的命令的响应; 以及帧的帧校验序列。

    Reduced pin gigabit media independent interface
    16.
    发明授权
    Reduced pin gigabit media independent interface 有权
    降低千兆以太网媒体独立接口

    公开(公告)号:US07760725B1

    公开(公告)日:2010-07-20

    申请号:US12228960

    申请日:2008-08-18

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L27/04 H04L12/50

    摘要: A medium access control (MAC) device includes M transmit pins that receive first transmit data signals, first transmit enable signals, and first transmit error signals from a host. N transmit pins output the first transmit data signals and the first transmit control signals to a physical layer (PHY) device. M and N are integers greater than two and M is greater than N. A first encoder encodes the first transmit enable signals and the first transmit error signals received on at least two of the M transmit pins to generate the first transmit control signals output on one of the N transmit pins.

    摘要翻译: 介质访问控制(MAC)设备包括M个发送引脚,其接收第一发送数据信号,第一发送使能信号和从主机发送的第一错误信号。 N个发送引脚将第一发送数据信号和第一发送控制信号输出到物理层(PHY)装置。 M和N是大于2的整数,M大于N.第一编码器对第一发射使能信号和在M个发射引脚中的至少两个上接收的第一发射误差信号进行编码,以产生在一个上发射的第一发射控制信号 的N个发送引脚。

    Network interface with autonegotiation and cable length measurement
    17.
    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:US07688749B1

    公开(公告)日:2010-03-30

    申请号:US11595053

    申请日:2006-11-10

    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。

    Cable tester
    18.
    发明授权
    Cable tester 有权
    电缆测试仪

    公开(公告)号:US07683628B1

    公开(公告)日:2010-03-23

    申请号:US12148161

    申请日:2008-04-17

    IPC分类号: G01R31/11

    CPC分类号: H04B3/46

    摘要: A physical layer device includes a cable test module that transmits a test pulse on a cable, measures a reflection amplitude, calculates a cable length, and determines a cable status based on the measured amplitude and the calculated cable length. A frequency synthesizer selectively outputs a plurality of signals at a plurality of frequencies on one end of the cable. An insertion loss calculator receives the signals from an opposite end of the cable and estimates insertion loss based on the received signals.

    摘要翻译: 物理层设备包括在电缆上传输测试脉冲的电缆测试模块,测量反射幅度,计算电缆长度,并且基于所测量的振幅和所计算的电缆长度确定电缆状态。 频率合成器以电缆一端的多个频率有选择地输出多个信号。 插入损耗计算器从电缆的相对端接收信号,并基于所接收的信号来估计插入损耗。

    Advanced time domain reflection cable testing
    19.
    发明授权
    Advanced time domain reflection cable testing 失效
    高级时域反射电缆测试

    公开(公告)号:US07679371B1

    公开(公告)日:2010-03-16

    申请号:US11254147

    申请日:2005-10-19

    申请人: William Lo

    发明人: William Lo

    IPC分类号: G01R31/11

    CPC分类号: G01R31/11 G01R31/021

    摘要: A cable testing system that tests cable includes a pulse generation module that transmits a first pulse on a first communications channel of the cable. A sampling module waits a predetermined time period after the pulse generation module transmits the first pulse and then detects a first amplitude of a reflected signal on a second communications channel of the cable. A time domain reflection (TDR) module receives the first amplitude and verifies proper operation of the cable based on the first amplitude. The predetermined time period corresponds with an estimated roundtrip propagation delay of the first pulse when the first pulse is reflected back to the cable testing system after traveling a first predetermined distance along the cable. The sampling module incrementally increases the predetermined time period during subsequent iterations of a cable test in order to verify proper operation of a predetermined segment of the cable.

    摘要翻译: 测试电缆的电缆测试系统包括脉冲发生模块,其在电缆的第一通信信道上发送第一脉冲。 在脉冲生成模块发送第一脉冲之后,采样模块等待预定的时间段,然后检测电缆的第二通信信道上的反射信号的第一幅度。 时域反射(TDR)模块接收第一幅度,并根据第一幅度验证电缆的正确操作。 当沿着电缆行进第一预定距离之后第一脉冲被反射回电缆测试系统时,预定时间段对应于估计的第一脉冲的往返传播延迟。 在随后的电缆测试迭代期间,采样模块递增地增加预定时间段,以便验证电缆的预定段的正确操作。

    64/66 encoder
    20.
    发明授权
    64/66 encoder 有权
    64/66编码器

    公开(公告)号:US07627023B1

    公开(公告)日:2009-12-01

    申请号:US11453193

    申请日:2006-06-14

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04B1/38

    CPC分类号: H04L69/22

    摘要: A physical layer device for a network interface includes a reconciliation device that includes a first interface that outputs data. A physical coding sublayer (PCS) device communicates with the first interface and includes an encoder that encodes the data to produce an encoded data block including an offset portion and n data blocks, each including at least one of data portions and control code portions. The encoder is capable of locating the control code portions within any of the n data blocks based on the offset portion.

    摘要翻译: 用于网络接口的物理层设备包括对帐设备,其包括输出数据的第一接口。 物理编码子层(PCS)设备与第一接口通信,并且包括对数据进行编码以产生包括偏移部分和n个数据块的编码数据块的编码器,每个数据块包括数据部分和控制代码部分中的至少一个。 编码器能够基于偏移部分将控制代码部分定位在任何n个数据块内。