公开(公告)号：US20090154365A1

公开(公告)日：2009-06-18

申请号：US12235345

申请日：2008-09-22

申请人： Wael William Diab ,  Scott Powell

发明人： Wael William Diab ,  Scott Powell

IPC分类号： G06F11/30

CPC分类号： H04L1/0001 ,  H04L12/40032 ,  H04L12/40039 ,  H04L12/413 ,  Y02D50/42

摘要： Ethernet link partners within an Ethernet network, coupled via an Ethernet link comprising one or more channels may be configured to operate in simplex mode based on determined condition(s) during communications via the one or more channels. The determined condition(s) may comprise utilization or load, current/past conditions and/or link statistics that may comprise one or more of packet error rate (PER), bit error rate (BER), and/or signal to noise ration (SNR). In addition, one or more of the channels may be transitioned to a lower power mode with a zero data rate. In some embodiments of the invention, one or more of a plurality of operational changes may occur during simplex mode operation. For example, power may lowered for one or more components that enable communication such as receivers, transmitters, near-end cross talk cancellers, far-end cross talk cancellers and/or echo cancellers.

摘要翻译： 通过包括一个或多个信道的以太网链路耦合的以太网网络中的以太网链路伙伴可以被配置为在通过一个或多个信道的通信期间基于确定的条件在单工模式下操作。 所确定的条件可以包括可以包括分组差错率（PER），误码率（BER）和/或信噪比（BER）的一个或多个的利用或负载，当前/过去条件和/或链路统计 SNR）。 另外，一个或多个信道可以转换到具有零数据速率的较低功率模式。 在本发明的一些实施例中，在单工模式操作期间可以发生多个操作改变中的一个或多个。 例如，对于能够进行通信的一个或多个组件，诸如接收机，发射机，近端串扰消除器，远端串扰消除器和/或回声消除器的功率可能降低。

公开(公告)号：US20090097393A1

公开(公告)日：2009-04-16

申请号：US12195199

申请日：2008-08-20

申请人： Wael William Diab ,  Scott Powell

发明人： Wael William Diab ,  Scott Powell

IPC分类号： H04J1/12 ,  H04L29/02

CPC分类号： H04L41/0833 ,  H04B3/32 ,  H04L5/0007 ,  H04L12/12 ,  H04L12/40136 ,  H04L12/413 ,  Y02D50/10 ,  Y02D50/40 ,  Y02D50/42

摘要： Training, refreshing and/or updating Ethernet link partners for silent channels and/or silent directions of channels may be determined based on control parameters. This may be used to improve energy efficiency in Ethernet communication. Control parameters may comprise a default value and/or may be determined based on prior training, refreshing and/or updating. New values for the control parameters may be generated based on a magnitude of change between current and prior control parameter values or based on performance such as bit error rate. User input may be utilized to determine when to execute the training, refreshing and/or updating. The training, refreshing and/or updating may be done for one or more of a near-end crosstalk canceller, alien near-end crosstalk canceller, far-end crosstalk canceller, alien far-end crosstalk canceller and echo canceller. After the training, refreshing and/or updating, the silent channels may transition to active and/or may remain silent.

摘要翻译： 训练，刷新和/或更新用于静音通道和/或无声通道方向的以太网链路伙伴可以基于控制参数来确定。 这可以用于提高以太网通信中的能源效率。 控制参数可以包括默认值和/或可以基于先前的训练，刷新和/或更新来确定。 可以基于当前和先前控制参数值之间的变化幅度或者基于诸如误码率的性能来生成控制参数的新值。 可以使用用户输入来确定何时执行训练，刷新和/或更新。 可以对近端串扰消除器，外来近端串扰消除器，远端串扰消除器，外来远端串扰消除器和回声消除器中的一个或多个进行训练，刷新和/或更新。 在训练，刷新和/或更新之后，静音频道可以转换到活动的和/或可以保持静音。

公开(公告)号：US20080310067A1

公开(公告)日：2008-12-18

申请号：US11761419

申请日：2007-06-12

申请人： Wael William Diab ,  Scott Powell ,  Minshine Shih

发明人： Wael William Diab ,  Scott Powell ,  Minshine Shih

IPC分类号： H02H5/04

CPC分类号： H04L12/10

摘要： A system and method for using a physical layer device to locate a thermal signature in a cable plant for diagnostic, enhanced, and higher power applications. Cable heating in specific sections of a network cable is detected through an automatic identification of a thermal signature in electrical measurements of a network cable. The correlation of the thermal signature to a specific section of the network cable enables network personnel to locate hot spots in the network cable with ease.

摘要翻译： 一种用于使用物理层设备来定位用于诊断，增强和高功率应用的电缆设备中的热特征的系统和方法。 通过网络电缆的电气测量中的热特征的自动识别来检测网络电缆的特定部分中的电缆加热。 热签名与网络电缆的特定部分的相关性使得网络人员能够轻松地在网络电缆中定位热点。

公开(公告)号：US09080992B2

公开(公告)日：2015-07-14

申请号：US13754767

申请日：2013-01-30

申请人： Mark S. Olsson ,  Scott Powell ,  Roger Shaffer ,  Stephanie Bench ,  Ray Merewhether ,  David Cox ,  Eric Chapman

发明人： Mark S. Olsson ,  Scott Powell ,  Roger Shaffer ,  Stephanie Bench ,  Ray Merewhether ,  David Cox ,  Eric Chapman

IPC分类号： G01N21/954 ,  H04N5/225 ,  H04N5/335 ,  G03B37/00 ,  H04N5/345 ,  H04N5/232

CPC分类号： G01N21/954 ,  G03B37/005 ,  H04N5/2252 ,  H04N5/2259 ,  H04N5/232 ,  H04N5/345 ,  H04N2005/2255

摘要： Camera heads configured to provide digitally articulated images or video, at adjustable resolutions and/or offsets and orientations, to a camera control unit (CCU) or other electronic computing system for display, storage, and/or transmission to other systems are disclosed.

摘要翻译： 公开了一种被配置为以可调节的分辨率和/或偏移和取向将数字关节式图像或视频提供给相机控制单元（CCU）或用于显示，存储和/或传输到其他系统的其他电子计算系统的相机头。

公开(公告)号：US09071328B2

公开(公告)日：2015-06-30

申请号：US13614725

申请日：2012-09-13

申请人： Scott Powell

发明人： Scott Powell

IPC分类号： H04B1/38 ,  H04B3/20 ,  H04B3/32 ,  H04L12/40

CPC分类号： H04B3/20 ,  H04B3/32 ,  H04L12/40032

摘要： Typical transceivers have multiple near-end and multiple far-end crosstalk cancellation filters. Crosstalk cancellation is one of the largest contributors to power dissipation in the DSP portion of high speed Ethernet transceivers. By detecting the cable type, a transceiver could automatically turn off its crosstalk cancellation filters when driving shielded twisted pair (STP) cables and substantially reduce the overall power dissipation in this configuration. Adaptive digital crosstalk cancellers automatically adjust the coefficients of a digital filter to match the coupling function between two channels. The impulse response of an optimal crosstalk cancellation filter can be used to determine a metric indicating the amount of coupling between the two channels. STP cables will have a much lower amount of coupling between wire-pairs than unshielded twisted pair cables.

摘要翻译： 典型的收发器具有多个近端和多个远端串扰消除滤波器。 串扰消除是高速以太网收发器DSP部分功耗最大的因素之一。 通过检测电缆类型，收发器可以在驱动屏蔽双绞线（STP）电缆时自动关闭其串扰消除滤波器，并在此配置中大大降低总体功耗。 自适应数字串扰消除器自动调整数字滤波器的系数以匹配两个通道之间的耦合功能。 可以使用最佳串扰消除滤波器的脉冲响应来确定指示两个信道之间的耦合量的度量。 STP电缆与非屏蔽双绞线电缆之间的线对耦合数量要少得多。

公开(公告)号：US09008244B2

公开(公告)日：2015-04-14

申请号：US12536172

申请日：2009-08-05

申请人： Mehmet Tazebay ,  Scott Powell ,  Peiqing Wang ,  Bruce Conway ,  Sang Bui

发明人： Mehmet Tazebay ,  Scott Powell ,  Peiqing Wang ,  Bruce Conway ,  Sang Bui

IPC分类号： H03D1/04 ,  H04B3/23 ,  H04B1/7097 ,  H04B3/32

CPC分类号： H04B1/12 ,  H04B1/7097 ,  H04B3/23 ,  H04B3/32

摘要： 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.

公开(公告)号：US08769082B2

公开(公告)日：2014-07-01

申请号：US12508999

申请日：2009-07-24

申请人： Scott Powell ,  Peiqing Wang

发明人： Scott Powell ,  Peiqing Wang

IPC分类号： G06F15/173

CPC分类号： G06F1/3209 ,  H04L12/40039 ,  Y02D50/42

摘要： One or both link partners coupled via an Ethernet link may comprise a PHY device operable to initiate a wake-up interval. The PHY device may monitor parameters that may indicate Ethernet link status. Exemplary parameters may comprise a timer, communication performance metrics and/or configuration parameters. From a low power mode, the PHY device may generate a wake state idle symbol based on the monitoring and may communicate it to a local and/or a remote MAC. The local and/or remote MAC may establish a wake-up interval. The wake-up interval may comprise synchronization, circuit adaption and updating of communication parameters, which may enable control of noise cancellation functions and/or equalization functions. One or both of the link partners may transition to a low power mode after the wake-up interval and/or to an active state after the wake-up interval.

摘要翻译： 通过以太网链路耦合的一个或两个链路伙伴可以包括可操作以启动唤醒间隔的PHY设备。 PHY设备可以监视可能指示以太网链路状态的参数。 示例性参数可以包括定时器，通信性能度量和/或配置参数。 从低功率模式，PHY设备可以基于监视产生唤醒状态空闲符号，并且可以将其传送到本地和/或远程MAC。 本地和/或远程MAC可以建立唤醒间隔。 唤醒间隔可以包括通信参数的同步，电路适配和更新，其可以实现噪声消除功能和/或均衡功能的控制。 一个或两个链路伙伴可以在唤醒间隔之后转换到低功率模式和/或在唤醒间隔之后转换到活动状态。

公开(公告)号：US08520553B2

公开(公告)日：2013-08-27

申请号：US12944355

申请日：2010-11-11

申请人： Nariman Yousefi ,  Scott Powell

发明人： Nariman Yousefi ,  Scott Powell

IPC分类号： H04L12/28

CPC分类号： H04L12/12 ,  Y02D50/20 ,  Y02D50/40 ,  Y02D50/42

摘要： 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.

摘要翻译： 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：US08498217B2

公开(公告)日：2013-07-30

申请号：US12835419

申请日：2010-07-13

申请人： Kishore Kota ,  Kadir Dinc ,  Ahmad Darabiha ,  Mehdi Tavassoli Kilani ,  Scott Powell ,  Tooraj Esmailian

发明人： Kishore Kota ,  Kadir Dinc ,  Ahmad Darabiha ,  Mehdi Tavassoli Kilani ,  Scott Powell ,  Tooraj Esmailian

IPC分类号： G01R31/08

CPC分类号： H04L27/01 ,  H04B15/00

摘要： Aspects of a method and system for adaptive tone cancellation for mitigating the effects of interference are provided. In this regard, an Ethernet PHY may receive one or more signals via a corresponding one or more physical channels and generate one or more estimate signals, each of which approximates interference present in a corresponding one of the received signals. The Ethernet PHY may subtract each one of the estimate signals from a corresponding one of the received signals. The subtracting may occur at the input of one or more slicers in the Ethernet PHY. The received signals may be processed via one or more equalizers in the Ethernet PHY. A decision output of a slicer in the Ethernet PHY may be subtracted from one of the said one or more received signals, and a signal resulting from the subtraction may be utilized to generate the one or more estimate signals.

摘要翻译： 提供了一种用于自适应音调消除的方法和系统，用于减轻干扰的影响。 在这方面，以太网PHY可以经由对应的一个或多个物理信道接收一个或多个信号，并且生成一个或多个估计信号，每个估计信号近似接收到的相应一个接收信号中存在的干扰。 以太网PHY可以从相应的一个接收信号中减去每个估计信号。 减法可能发生在以太网PHY中的一个或多个限幅器的输入端。 可以通过以太网PHY中的一个或多个均衡器来处理所接收的信号。 可以从所述一个或多个接收信号中的一个中减去以太网PHY中的限幅器的判定输出，并且可以利用由该减法产生的信号来产生一个或多个估计信号。

公开(公告)号：US08437366B2

公开(公告)日：2013-05-07

申请号：US13099760

申请日：2011-05-03

申请人： Gottfried Ungerboeck ,  Scott Powell

发明人： Gottfried Ungerboeck ,  Scott Powell

IPC分类号： H04J3/00 ,  H04L12/26

CPC分类号： H04L41/08 ,  H04L12/403

摘要： Certain aspects for the start-up procedure of transceivers supporting higher data rates over twisted-pair copper cabling are provided for 10 Gbit/sec Ethernet links (10GBASE-T). During a PMA (physical medium attachment) training period of the start-up procedure, long PMA training frames are exchanged periodically between link partners. A significant portion of each PMA training frame consists of known pseudo random sequences simultaneously transmitted over four wire pairs. PMA training frames include an InfoField for exchanging parameters and control information between link partners. For example, the InfoField's payload comprises fields for indicating current transmit power backoff (PBO), next PBO, requested PBO, transition count, control information, and for communicating precoder coefficients. Information in InfoFields is repeated and is not necessary that a link partner decodes every InfoField. For example, by occasionally reading the transition count, a link partner can determine when a change in transmit PBO and/or a state transition is to occur.

摘要翻译： 为10Gbit /秒以太网链路（10GBASE-T）提供了通过双绞铜缆布线支持更高数据速率的收发器的启动过程的某些方面。 在启动程序的PMA（物理介质附加）训练期间，长链PMA训练帧在链路伙伴之间定期交换。 每个PMA训练帧的重要部分由通过四个线对同时传输的已知伪随机序列组成。 PMA培训框架包括用于在链接伙伴之间交换参数和控制信息的InfoField。 例如，InfoField的有效载荷包括用于指示当前发送功率回退（PBO），下一个PBO，所请求的PBO，转移计数，控制信息以及用于传达预编码器系数的字段。 InfoFields中的信息被重复，链接伙伴不需要对每个InfoField进行解码。 例如，通过偶尔读取转换计数，链路伙伴可以确定何时发生传输PBO和/或状态转换的变化。