公开(公告)号：US20140359676A1

公开(公告)日：2014-12-04

申请号：US14462270

申请日：2014-08-18

Applicant: BROADCOM CORPORATION

Inventor： Wael DIAB ,  Yong KIM ,  Scott POWELL

IPC: H04N21/4363 ,  H04N21/436 ,  H04N7/10 ,  H04L12/28

CPC classification number: H04N21/43632 ,  G09G5/006 ,  G09G2370/10 ,  H04L12/2805 ,  H04L12/2816 ,  H04L2012/2849 ,  H04N5/85 ,  H04N7/106 ,  H04N9/8042 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61 ,  H04N21/43615 ,  H04N21/6373 ,  H04N21/64322 ,  Y02D30/32

Abstract: Signals may be communicated between a video source and a video rendering device via and asymmetrical multi-rate Ethernet physical layer (PHY). The asymmetric multi-rate PHY may support multiple rates. The asymmetrical multi-rate Ethernet PHY may handle compressed and/or uncompressed, encrypted and/or unencrypted video signals and may handle audio/video bridging. One or more of the communicated signals may be modified by an echo cancellation operation, a near end cross talk (NEXT) cancellation operation, equalization, a far end cross talk (FEXT) cancellation operation and/or a forward error correction (FEC) operation. An aggregate communication rate may be evenly or unevenly distributed among one or more links coupling the video signal source to the video rendering device. A plurality of links coupling the video signal source to said video rendering device may also be aggregated.

Abstract translation: 信号可以经由视频源和视频呈现设备经由和不对称的多速率以太网物理层（PHY）传送。 非对称多速率PHY可以支持多个速率。 不对称多速率以太网PHY可以处理压缩和/或未压缩，加密和/或未加密的视频信号，并且可以处理音频/视频桥接。 可以通过回波消除操作，近端串扰（NEXT）消除操作，均衡，远端串扰（FEXT）消除操作和/或前向纠错（FEC）操作来修改所传送的信号中的一个或多个 。 聚合通信速率可以在将视频信号源耦合到视频呈现设备的一个或多个链路中均匀地或不均匀地分布。 将视频信号源耦合到所述视频呈现设备的多个链路也可以被聚合。

公开(公告)号：US20150188586A1

公开(公告)日：2015-07-02

申请号：US14645704

申请日：2015-03-12

Applicant: Broadcom Corporation

Inventor： Mehmet TAZEBAY ,  Scott POWELL ,  Peiqing WANG ,  Bruce CONWAY ,  Sang BUI

IPC: H04B1/12

CPC classification number: H04B1/12 ,  H04B1/7097 ,  H04B3/23 ,  H04B3/32

Abstract: Communication devices coupled via a communication link may comprise physical layer devices that may be operable to determine presence of a received signal and to mitigate noise in the signal prior to processing and/or validating the signal. Analog and/or digital signal processing may be utilized to process the signal and/or mitigate noise in the signal. Noise mitigation may comprise near-end crosstalk cancelling and/or echo cancelling and/or may utilize local transmit signal information. Subsequent to noise mitigation, samples of the noise reduced signal may be accumulated and/or an average signal strength and/or average signal power level may be determined. The average signal strength and/or average signal power level may be compared to one or more thresholds which may be configurable and/or programmable.

Abstract translation: 通过通信链路耦合的通信设备可以包括物理层设备，其可以在处理和/或验证信号之前确定接收信号的存在并减轻信号中的噪声。 可以使用模拟和/或数字信号处理来处理信号和/或减轻信号中的噪声。 噪声减轻可以包括近端串扰消除和/或回波消除和/或可以利用本地发射信号信息。 在噪声减轻之后，可以累积噪声降低信号的样本和/或可以确定平均信号强度和/或平均信号功率电平。 平均信号强度和/或平均信号功率电平可以与可配置和/或可编程的一个或多个阈值进行比较。

公开(公告)号：US20150172074A1

公开(公告)日：2015-06-18

申请号：US14634154

申请日：2015-02-27

Applicant: BROADCOM CORPORATION

Inventor： Scott POWELL ,  Mark BERMAN ,  Joseph Laurence CORDARO ,  Manolito CATALASAN

IPC: H04L12/413

CPC classification number: H04L12/413 ,  H04L12/66

Abstract: Aspects of a method and system for utilizing a 10/100/1 G/10 GBase-T PHY device for single channel and shared channel networks are provided. In this regard, at least one switching element may be utilized to configure an Ethernet over twisted pair PHY device for communication over a single and/or shared channel. The switching element may enable switching between a transmitter being coupled to a shared channel and a receiver being coupled to a shared channel. Additionally, the switching elements may be based on whether the transmitter is connected to a standard 10/100/1 G/10 GBase-T network, or to a single and/or shared channel network, for example. In this manner, the configured PHY device may remain compatible with existing Ethernet networks. The PHY device may be configured externally and/or internally. The polarity of transmitted and/or received data may be configured based on a polarity of data received from a shared channel.

Abstract translation: 提供了一种用于单通道和共享信道网络使用10/100/1 G / 10 GBase-T PHY设备的方法和系统。 在这方面，可以使用至少一个开关元件来配置用于通过单个和/或共享信道进行通信的双绞线以太网PHY设备。 开关元件可以实现耦合到共享信道的发射机与耦合到共享信道的接收机之间的切换。 此外，开关元件可以基于发射机是否连接到例如标准10/100/1 G / 10 GBase-T网络，或者连接到单个和/或共享信道网络。 以这种方式，配置的PHY设备可以保持与现有以太网的兼容。 PHY设备可以在外部和/或内部配置。 可以基于从共享信道接收的数据的极性来配置发送和/或接收数据的极性。

公开(公告)号：US20130322555A1

公开(公告)日：2013-12-05

申请号：US13960731

申请日：2013-08-06

Applicant: Broadcom Corporation

Inventor： Nariman YOUSEFI ,  Scott POWELL

IPC: H04L12/12

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

Abstract: A system, method and apparatus for reducing a power consumed by a physical layer device (PHY). A length of a cable connecting the PHY to a link partner is determined. Based on the length, power provided to one or more components of the PHY, or any portion thereof, is reduced. The power provided is reduced while maintaining a level of reliability specified by a protocol governing operation of the PHY. The length can be determined using time-domain reflectometry (TDR) techniques. Any portion of an echo cancellation filter, a crosstalk filter, an equalizer, a precoder, an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a forward error correction (FEC) decoder and/or an FEC coder can be powered-down or power-optimized to reduce the overall power consumed by the PHY. The protocol governing operation of the PHY can be IEEE 802.3.

Abstract translation: 一种用于减少物理层设备（PHY）消耗的功率的系统，方法和装置。 确定将PHY连接到链路伙伴的电缆的长度。 基于长度，减少了提供给PHY的一个或多个组件或其任何部分的功率。 提供的功率降低，同时保持由控制PHY的操作的协议规定的可靠性水平。 可以使用时域反射（TDR）技术确定长度。 回波消除滤波器，串扰滤波器，均衡器，预编码器，模数转换器（ADC），数模转换器（DAC），前向纠错（FEC）解码器和/ 或者可以对FEC编码器进行掉电或功率优化，以减少PHY消耗的总体功耗。 控制PHY的操作的协议可以是IEEE 802.3。

公开(公告)号：US20150016319A1

公开(公告)日：2015-01-15

申请号：US14501209

申请日：2014-09-30

Applicant: Broadcom Corporation

Inventor： Scott POWELL ,  Kuang-Chou Chang ,  Bruce Conway

IPC: H04L5/14

CPC classification number: H04L5/1438 ,  H04L12/403 ,  H04L12/413 ,  H04L69/24

Abstract: Aspects of a method and system for extended range Ethernet link discovery signaling are provided. A local PHY may detect of one or more active twisted-pair wires in a remote PHY in extended range applications. The local PHY may determine whether to operate as a master or slave based on detected pairs. When operating as a master device, the local PHY may correct twisted-pair wire swap information received from the remote PHY before communicating an encoded link length value to the remote PHY. When operating as a slave device, the local PHY may transmit encoded twisted-pair wire swap information to the remote PHY before recovering a link length value communicated from the remote PHY. The local PHY may communicate supported operating modes based on the link length value to the remote PHY. Moreover, the local PHY may enable establishing a common full duplex operating mode with the remote PHY.

Abstract translation: 提供了扩展以太网链路发现信令的方法和系统的方面。 本地PHY可以在扩展范围应用中检测远程PHY中的一个或多个有源双绞线。 本地PHY可以基于检测到的对来确定是否作为主机或从机操作。 当作为主设备操作时，本地PHY可以在将经编码的链路长度值传送到远程PHY之前校正从远程PHY接收的双绞线交换信息。 当作为从设备操作时，本地PHY可以在恢复从远程PHY传送的链路长度值之前向远程PHY发送编码的双绞线交换信息。 本地PHY可以基于到远程PHY的链路长度值来通信所支持的操作模式。 此外，本地PHY可以使得能够与远程PHY建立公共全双工操作模式。