公开(公告)号：US07839309B1

公开(公告)日：2010-11-23

申请号：US12356155

申请日：2009-01-20

Applicant: William Lo ,  Xiaopeng Chen

Inventor： William Lo ,  Xiaopeng Chen

IPC: H03M5/06

CPC classification number: H03M5/145 ,  H03M5/16 ,  H03M5/20

Abstract: A physical layer device includes a converter module to convert input data having a first predetermined number of bits into output data having a second predetermined number of bits. A scrambler module is operable to be activated and deactivated. The scrambler module receives the output data having the second predetermined number of bits. An encoding module modulates the output of the scrambler module in accordance with one of a plurality of modulation types and generates an encoded output signal having an output level. The encoding module is operable to vary the output levels of the encoded output signal.

Abstract translation: 物理层设备包括转换器模块，用于将具有第一预定位数的输入数据转换成具有第二预定位数的输出数据。 加扰器模块可操作以被激活和去激活。 加扰器模块接收具有第二预定位数的输出数据。 编码模块根据多种调制类型之一调制扰频器模块的输出，并产生具有输出电平的编码输出信号。 编码模块可操作以改变编码的输出信号的输出电平。

公开(公告)号：US07479906B1

公开(公告)日：2009-01-20

申请号：US11801316

申请日：2007-05-09

Applicant: William Lo ,  Xiaopeng Chen

Inventor： William Lo ,  Xiaopeng Chen

IPC: H03M5/06

CPC classification number: H03M5/145 ,  H03M5/16 ,  H03M5/20

Abstract: A physical layer device comprises a mode selector that selects a mode. A clock selects a clock frequency from T clock frequencies based on the mode. A converter module selects one of N mapping functions based on the mode and converts an n-bit input to an m-bit output based on the selected one of the N mapping functions. A scrambler module scrambles the m-bit output or passes the m-bit output unchanged based on the mode. An encoding module modulates the m-bit output based on the selected clock frequency and one of M modulation modes selected based on the mode, where T, n, m, N and M are integers greater than one and n is not equal to m.

Abstract translation: 物理层设备包括选择模式的模式选择器。 一个时钟根据该模式从T个时钟频率中选择一个时钟频率。 A转换器模块基于该模式选择N个映射函数之一，并且基于所选择的N个映射函数之一将n位输入转换为m位输出。 扰码器模块对m位输出进行加扰，或者根据该模式使m位输出不变。 编码模块基于所选择的时钟频率和基于模式选择的M个调制模式之一来调制m比特输出，其中T，n，m，N和M是大于1的整数，n不等于m。

公开(公告)号：US07135996B1

公开(公告)日：2006-11-14

申请号：US11124997

申请日：2005-05-09

Applicant: William Lo ,  Xiaopeng Chen

Inventor： William Lo ,  Xiaopeng Chen

IPC: H03M5/06

CPC classification number: H03M5/145 ,  H03M5/16 ,  H03M5/20

Abstract: A physical layer device for a network device comprises a converter module that selectively converts an n-bit input to an m-bit output based on first and second mapping functions. A scrambler module selectively scrambles the m-bit output. An encoding module receives the m-bit output from the scrambler module and selectively maps the m-bit output based on the first mapping function to three level output signals and the m-bit output based on the second mapping function to four level output signals.

Abstract translation: 用于网络设备的物理层设备包括转换器模块，其基于第一和第二映射功能选择性地将n位输入转换为m位输出。 扰频器模块选择性地加扰m位输出。 编码模块从加扰器模块接收m位输出，并将基于第一映射功能的m位输出选择性地映射到三电平输出信号，并将基于第二映射函数的m位输出映射到四电平输出信号。

公开(公告)号：US07221294B1

公开(公告)日：2007-05-22

申请号：US11592888

申请日：2006-11-03

Applicant: William Lo ,  Xiaopeng Chen

Inventor： William Lo ,  Xiaopeng Chen

IPC: H03M5/06

CPC classification number: H03M5/145 ,  H03M5/16 ,  H03M5/20

Abstract: A physical layer device for a network device comprises a converter module that selectively converts an n-bit input to an m-bit output based on first and second mapping functions. A scrambler module selectively scrambles the m-bit output. An encoding module receives the m-bit output from the scrambler module and selectively maps the m-bit output based on the first mapping function to X level output signals and the m-bit output based on the second mapping function to Y level output signals, where X and Y are integers greater than one and X is different than Y.

Abstract translation: 用于网络设备的物理层设备包括转换器模块，其基于第一和第二映射功能选择性地将n位输入转换为m位输出。 扰频器模块选择性地加扰m位输出。 编码模块从加扰器模块接收m位输出，并将基于第一映射功能的m位输出根据第二映射函数选择性地映射到X电平输出信号和m位输出到Y电平输出信号， 其中X和Y是大于1的整数，X不同于Y.

公开(公告)号：US09130746B1

公开(公告)日：2015-09-08

申请号：US13350969

申请日：2012-01-16

Applicant: William Lo

Inventor： William Lo

IPC: H04L5/16 ,  H04L5/14

CPC classification number: H04L5/16 ,  H04B3/02 ,  H04L5/14 ,  H04L5/1438 ,  H04L69/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08179144B1

公开(公告)日：2012-05-15

申请号：US13023410

申请日：2011-02-08

Applicant: William Lo ,  Yiqing Guo ,  Tak Tsui ,  Tsin-Ho Leung ,  Runsheng He ,  Eric Janofsky

Inventor： William Lo ,  Yiqing Guo ,  Tak Tsui ,  Tsin-Ho Leung ,  Runsheng He ,  Eric Janofsky

IPC: G01R31/11

CPC classification number: H04L43/50 ,  G01R31/11 ,  H04L12/10

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08018962B1

公开(公告)日：2011-09-13

申请号：US12723915

申请日：2010-03-15

Applicant: Sehat Sutardja ,  William Lo

Inventor： Sehat Sutardja ,  William Lo

IPC: H04L12/56

CPC classification number: H04L47/25 ,  H04J3/18 ,  H04L12/2874 ,  H04L25/0262 ,  H04L49/3054 ,  H04L49/351 ,  H04L69/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110208985A1

公开(公告)日：2011-08-25

申请号：US13099947

申请日：2011-05-03

Applicant: William Lo

Inventor： William Lo

IPC: G06F1/32

CPC classification number: H04L12/12 ,  Y02D50/20 ,  Y02D50/40 ,  Y02D50/42

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07983259B1

公开(公告)日：2011-07-19

申请号：US12837152

申请日：2010-07-15

Applicant: William Lo

Inventor： William Lo

IPC: H04L27/04 ,  H04L12/50

CPC classification number: H04L49/40 ,  H04L49/30 ,  H04L49/351

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07979587B1

公开(公告)日：2011-07-12

申请号：US12624522

申请日：2009-11-24

Applicant: William Lo

Inventor： William Lo

IPC: G06F15/16

CPC classification number: H04L12/40136

Abstract: 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.

Abstract translation: 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。