Single pair PHY with auto-negotiation
    1.
    发明授权
    Single pair PHY with auto-negotiation 有权
    单对PHY与自动协商

    公开(公告)号:US09130746B1

    公开(公告)日:2015-09-08

    申请号:US13350969

    申请日:2012-01-16

    申请人: William Lo

    发明人: William Lo

    IPC分类号: H04L5/16 H04L5/14

    摘要: Systems, methods, and other embodiments associated with auto-negotiating over a single pair PHY are described. According to one embodiment, an apparatus includes a physical layer (PHY) transceiver configured to communicate over a single twisted pair channel. The apparatus includes a setup logic configured to control the PHY transceiver to initiate an auto-negotiation sequence over the single twisted pair channel with a remote device upon detecting a transmission from the remote device on the single twisted pair channel. The auto-negotiation sequence includes an exchange of parameters with the remote device using a half-duplex mode to communicate on the single twisted pair channel.

    摘要翻译: 描述了通过单对PHY自动协商相关联的系统,方法和其他实施例。 根据一个实施例,一种装置包括被配置为通过单个双绞线信道进行通信的物理层(PHY)收发器。 该装置包括设置逻辑,其被配置为在检测到来自单个双绞线信道上的远程设备的传输时,通过远程设备来控制PHY收发器在单个双绞线信道上发起自动协商序列。 自动协商序列包括使用半双工模式与远程设备交换参数,以在单个双绞线信道上进行通信。

    Cable tester
    2.
    发明授权
    Cable tester 有权
    电缆测试仪

    公开(公告)号:US08179144B1

    公开(公告)日:2012-05-15

    申请号:US13023410

    申请日:2011-02-08

    IPC分类号: G01R31/11

    CPC分类号: H04L43/50 G01R31/11 H04L12/10

    摘要: A network device including a physical layer (PHY) device and an autonegotiation module. The PHY device is configured to interface with N cable pairs, where N is greater than 1. The PHY device includes a cable test module configured to diagnose a short circuit in one of the N cable pairs. The autonegotiation module is configured to i) selectively perform autonegotiation to establish a link with a link partner at one of a first link speed and a second link speed that is lower than the first link speed, and ii) select between the first link speed and the second link speed in response to the cable test module diagnosing the short circuit.

    摘要翻译: 一种包括物理层(PHY)设备和自动协商模块的网络设备。 PHY设备被配置为与N个大于1的N个电缆对接口。PHY设备包括被配置为诊断N个电缆对之一中的短路的电缆测试模块。 自动协商模块被配置为:i)选择性地执行自动协商以便以低于第一链路速度的第一链路速度和第二链路速度中的一个建立与链路伙伴的链路,以及ii)在第一链路速度和 响应于电缆测试模块诊断短路的第二链路速度。

    Chip-to-chip interface for 1000 BASE T gigabit physical layer device
    3.
    发明授权
    Chip-to-chip interface for 1000 BASE T gigabit physical layer device 有权
    千兆比特物理层设备的芯片到芯片接口

    公开(公告)号:US08018962B1

    公开(公告)日:2011-09-13

    申请号:US12723915

    申请日:2010-03-15

    IPC分类号: H04L12/56

    摘要: A physical layer interface for a switch. The physical layer interface includes an auto-negotiation circuit, a transceiver, and a serial interface. The auto-negotiation circuit is configured to negotiate a first data transmission rate with a network client. The transceiver is configured to communicate with the network client at the data transmission rate. The serializer interface is configured to communicate with a media access controller (MAC) at a second data transmission rate that is different than the first data transmission rate.

    摘要翻译: 交换机的物理层接口。 物理层接口包括自动协商电路,收发器和串行接口。 自动协商电路被配置为与网络客户端协商第一数据传输速率。 收发器被配置为以数据传输速率与网络客户端进行通信。 序列化器接口被配置为以与第一数据传输速率不同的第二数据传输速率与媒体接入控制器(MAC)进行通信。

    Low Power Mode for a Network Interface
    4.
    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
    5.
    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
    6.
    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
    7.
    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
    8.
    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
    9.
    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
    10.
    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。