公开(公告)号：US07933323B2

公开(公告)日：2011-04-26

申请号：US11537108

申请日：2006-09-29

申请人： Peiqing Wang ,  Mehmet V. Tazebay ,  Scott Powell

发明人： Peiqing Wang ,  Mehmet V. Tazebay ,  Scott Powell

IPC分类号： H03K5/159

CPC分类号： H04L7/0062

摘要： Processing signals in a digital communication may include equalizing a signal in a timing-recovery system using a frequency domain equalizer. The frequency domain equalizer may be a frequency domain adaptive filter that adapts using a least-mean-square algorithm where at least one tap-weight that corresponds to a pre-cursor may be constrained to zero. The processing may include recovering timing information using a Mueller/Muller timing recovery algorithm that may be aided by using a pre-filter before the equalizer.

摘要翻译： 处理数字通信中的信号可以包括使用频域均衡器来均衡定时恢复系统中的信号。 频域均衡器可以是频域自适应滤波器，其使用最小均方算法进行调整，其中对应于前导的至少一个抽头可以被约束为零。 处理可以包括使用Mueller / Muller定时恢复算法来恢复定时信息，该算法可以通过在均衡器之前使用预滤波器来辅助。

公开(公告)号：US07920597B2

公开(公告)日：2011-04-05

申请号：US11859385

申请日：2007-09-21

申请人： Bruce Conway ,  Scott Powell

发明人： Bruce Conway ,  Scott Powell

IPC分类号： H04J3/06

CPC分类号： H04L12/413 ,  H04L12/40039 ,  H04L12/40136 ,  Y02D50/10 ,  Y02D50/42

摘要： Aspects of a method and system for low power IDLE signal transmission in Ethernet networks are provided. In this regard, during time periods between transmissions of actual data by a local Ethernet link partner, the local Ethernet Link partner may generate one or more signals, in place of a standard Ethernet IDLE signal, that enable synchronization between Ethernet link partners. In this manner, the generated signals may enable reducing power consumption as compared to standard Ethernet IDLE signals. Accordingly, link activity may be monitored to enable detecting periods when there may be no actual data for transmission and the generated signals may be transmitted. The generated signals may be transmitted at a reduced symbol rate as compared to standard Ethernet IDLE signals. The generated signals may be transmitted via fewer network links as compared to standard Ethernet IDLE signals.

摘要翻译： 提供了以太网中用于低功率IDLE信号传输的方法和系统的方面。 在这方面，在本地以太网链路伙伴发送实际数据之间的时间段期间，本地以太网链路伙伴可以生成一个或多个信号来代替以太网链路伙伴之间的同步的标准以太网IDLE信号。 以这种方式，与标准以太网IDLE信号相比，产生的信号可以实现降低功耗。 因此，可以监视链路活动以使得能够在不存在用于传输的实际数据的情况下检测周期，并且可以发送生成的信号。 与标准以太网IDLE信号相比，所生成的信号可以以减小的符号速率传输。 与标准以太网IDLE信号相比，所生成的信号可以通过较少的网络链路传输。

公开(公告)号：US20110026416A1

公开(公告)日：2011-02-03

申请号：US12651446

申请日：2010-01-01

申请人： Mehmet Tazebay ,  Scott Powell ,  Peiqing Wang

发明人： Mehmet Tazebay ,  Scott Powell ,  Peiqing Wang

IPC分类号： H04L12/26

CPC分类号： H04L43/0811 ,  H04L12/12 ,  H04L41/142 ,  Y02D30/30 ,  Y02D30/32 ,  Y02D50/20 ,  Y02D50/40 ,  Y02D50/42

摘要： A system and method for dynamic power control for energy efficient physical layer communication devices. Energy-efficiency features are continually being developed to conserve energy in links between such energy-efficient devices. These energy-efficient devices interoperate with many legacy devices that have already been deployed. In these links, energy savings can be produced by having a local receiver enter an energy saving state based upon the receipt of standard IDLE signals.

摘要翻译： 一种用于能量效率物理层通信设备的动态功率控制的系统和方法。 能源效率特性正在不断发展，以节约能源，节约能源。 这些节能设备与已经部署的许多传统设备进行互操作。 在这些链接中，可以通过使本地接收机基于接收到标准IDLE信号而进入节能状态来产生节能。

公开(公告)号：US07369617B2

公开(公告)日：2008-05-06

申请号：US10786362

申请日：2004-02-26

申请人： Scott Powell

发明人： Scott Powell

IPC分类号： H04L27/00

CPC分类号： H04L1/0071 ,  H04L1/0041 ,  H04L5/06 ,  H04L25/14

摘要： An interleaving operation can scramble (permute) a data stream, or each dimension (set of symbols (a, b, c, . . . )) in a data stream, immediately following FEC encoding or dimension multiplexing of the data stream. Bursts of errors might be combined with the permuted data before, during, or after transmission. A de-interleaver reorders the received symbols and, in the process, spreads (separates) the bursts of errors. Also, using the multi-dimensional interleaving and de-interleaving can balance SNR on each channel. Spreading the errors and/or balancing SNR can keep bursts from overwhelming the FEC decoder or an FEC decoder in any one channel. In one example, interleaving and de-interleaving can be used to scramble data over Ethernet twisted wire pairs. In another example, interleaving and de-interleaving can be used to scramble data or information broadcast via wireless telecommunications channels (e.g., radio frequency channels, multi-antenna channels, etc).

摘要翻译： 交织操作可以在数据流的FEC编码或维数复用之后立即对数据流或数据流中的每个维度（一组符号（a，b，c，...））进行加扰（排列）。 错误的突发可能与传输之前，期间或之后的置换数据相结合。 解交织器重新排序接收到的符号，并且在该过程中扩展（分离）错误的突发。 此外，使用多维交织和解交织可以平衡每个信道上的SNR。 扩展错误和/或平衡SNR可以使任何一个信道中的FEC解码器或FEC解码器不受压制。 在一个示例中，交织和解交织可用于通过以太网双绞线对加扰数据。 在另一示例中，可以使用交织和解交织来经由无线电信信道（例如，射频信道，多天线信道等）来对数据或信息进行加扰。

公开(公告)号：US20080069144A1

公开(公告)日：2008-03-20

申请号：US11686852

申请日：2007-03-15

申请人： Xinhua Yu ,  Kuang-Chou Chang ,  Yencheng Chen ,  Scott Powell

发明人： Xinhua Yu ,  Kuang-Chou Chang ,  Yencheng Chen ,  Scott Powell

IPC分类号： H04J3/00

CPC分类号： H04L25/4923 ,  H04L5/1423 ,  H04L12/40136 ,  H04L25/4908

摘要： Aspects of a method and system for an extended range Ethernet line code are provided. A local PHY may enable converting Ethernet media independent interface (MII) data from a 4-bit packet stream to a 3-bit packet stream. The 3-bit packet stream may be mapped to first and second ternary bits streams, for example, for communication to a remote PHY utilizing PAM-3 over one or more twisted-pair wires. The 3-bit packet stream may be scrambled and/or aligned before mapping. When a single twisted-pair wire is available, the local PHY may multiplex the ternary bits streams into a single stream. Start-stream delimiters (SSD) may be inserted before the ternary bits streams and end-stream delimiters may be inserted after the ternary bits streams. Idle signals may be inserted after the ESDs and before the start of the next frame of MII data.

摘要翻译： 提供了扩展以太网线路代码的方法和系统的方面。 本地PHY可以实现将以太网媒体独立接口（MII）数据从4比特分组流转换为3比特分组流。 3比特分组流可以映射到第一和第二三进制比特流，例如，通过一个或多个双绞线用于通过PAM-3与远程PHY通信。 在映射之前可以对3比特分组流进行扰频和/或对齐。 当单个双绞线可用时，本地PHY可以将三进制比特流复用为单个流。 可以在三进制比特流之前插入起始流分隔符（SSD），并且在三进制比特流之后可以插入终止流分隔符。 空闲信号可以在ESD之后和MII数据的下一帧开始之前被插入。

公开(公告)号：US20070248024A1

公开(公告)日：2007-10-25

申请号：US11473205

申请日：2006-06-22

申请人： Bruce H. Conway ,  Minshine Shih ,  Scott Powell ,  Ali Abaye ,  Seyed Hamidi

发明人： Bruce H. Conway ,  Minshine Shih ,  Scott Powell ,  Ali Abaye ,  Seyed Hamidi

IPC分类号： H04J1/16

CPC分类号： H04L47/25 ,  H04B3/23 ,  H04B3/32 ,  H04L1/0036 ,  H04L1/0054 ,  H04L5/1446 ,  Y02D50/10

摘要： Aspects of a method and system for an extended range copper transceiver are provided. Reducing the communication rate provided by multi-rate physical (PHY) layer operations in an Ethernet transceiver may extend the range of the Ethernet transceiver over twisted-pair copper cabling from a standard connection length. The Ethernet transceiver may support up to 1 Gbps or up to 10 Gbps transmission rate over copper cabling. The multi-rate PHY layer architecture in the Ethernet transceiver may support signal-processing operations, such as echo cancellation and/or equalization, which may be applied to the reduced communication rate to enable range extension. The reduced communication rate may be achieved by reducing the symbol rate provided by the multi-rate PHY layer operations. Reducing the communication rate may also enable utilizing greater insertion loss cabling for a standard connection length.

摘要翻译： 提供了扩展范围铜收发器的方法和系统的方面。 降低以太网收发器中多速率物理（PHY）层操作提供的通信速率可以通过双绞线铜缆从标准连接长度扩展以太网收发器的范围。 以太网收发器可以通过铜缆布线支持高达1 Gbps或高达10 Gbps的传输速率。 以太网收发器中的多速率PHY层架构可以支持诸如回波消除和/或均衡之类的信号处理操作，其可以应用于降低的通信速率以实现范围扩展。 降低的通信速率可以通过减少由多速率PHY层操作提供的符号速率来实现。 降低通信速率还可以使得为标准连接长度使用更大的插入损耗布线。

公开(公告)号：US20070076722A1

公开(公告)日：2007-04-05

申请号：US11410172

申请日：2006-04-24

申请人： Gottfried Ungerboeck ,  Scott Powell

发明人： Gottfried Ungerboeck ,  Scott Powell

IPC分类号： H04L12/56

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射功率回退（PBO），下一个PBO，所请求的PBO，转换计数，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。

公开(公告)号：US20060234892A1

公开(公告)日：2006-10-19

申请号：US11452849

申请日：2006-06-14

申请人： Arseni Radomyselski ,  Paul Amaat Raymond Gerald France ,  Dewey Burton ,  Michael Ullom ,  Marcus Bertin ,  Scott Powell ,  Eddy Vos ,  Veerle Lootvoet ,  William Scheper ,  John Haught ,  John Deak

发明人： Arseni Radomyselski ,  Paul Amaat Raymond Gerald France ,  Dewey Burton ,  Michael Ullom ,  Marcus Bertin ,  Scott Powell ,  Eddy Vos ,  Veerle Lootvoet ,  William Scheper ,  John Haught ,  John Deak

IPC分类号： D06L1/04

CPC分类号： B01D17/0202 ,  B01D17/00 ,  B01D17/04

摘要： The present invention relates to a system for processing a lipophilic fluid, more particularly to a system for processing a lipophilic fluid utilized in a fabric treating process, even more particularly to a system for processing a lipophilic fluid such that contaminants such as water, surfactants, water, body/food oils, fatty acids, and dyes can be removed from the lipophilic fluid. In other words, the present invention relates to the “cleaning up” of or purification of a lipophilic fluid such that it can be re-used in a lipophilic fluid system.

公开(公告)号：US20060156179A1

公开(公告)日：2006-07-13

申请号：US11190333

申请日：2005-07-27

申请人： Ba-Zhong Shen ,  Scott Powell ,  Kelly Cameron ,  Hau Tran

发明人： Ba-Zhong Shen ,  Scott Powell ,  Kelly Cameron ,  Hau Tran

IPC分类号： H03M13/00

CPC分类号： H03M13/255 ,  H03M7/30 ,  H03M13/03 ,  H03M13/033 ,  H03M13/1102 ,  H03M13/15 ,  H03M13/1515

摘要： Construction of LDPC (Low Density Parity Check) codes using GRS (Generalized Reed-Solomon) code. A novel approach is presented by which a GRS code may be employed to generate a wide variety of types of LDPC codes. Such GRS based LDPC codes may be employed within various types of transceiver devices implemented within communication systems. This approach may be employed to generate GRS based LDPC codes particular designed for various application arenas. As one example, such a GRS based LDPC code may be specifically designed for use in communication systems that operate in accordance with any standards and/or recommended practices of the IEEE P802.3an (10GBASE-T) Task Force.

公开(公告)号：US20060153307A1

公开(公告)日：2006-07-13

申请号：US11330324

申请日：2006-01-12

申请人： Kevin Brown ,  Scott Powell ,  Gottfried Ungerboeck

发明人： Kevin Brown ,  Scott Powell ,  Gottfried Ungerboeck

IPC分类号： H04L25/00

CPC分类号： H04L1/0002 ,  H01R9/035 ,  H01R2201/04 ,  H04L1/24 ,  H04L25/0264

摘要： A method, system and computer program product to adjust transfer rates on conductors in a multi-conductor cable comprising monitoring signals received on each conductor, determining a Signal to Noise Ratio (SNR) for each conductor and adjusting a transfer rate on one or more conductors based on the corresponding SNR. In an embodiment the multi-conductor cable is a twisted pair Ethernet cable. The method further comprises determining whether a conductor is transmitting at an optimal transfer rate as a function of its SNR, calculating an optimal transfer rate for each conductor as a function of its SNR and periodically measuring a change in SNR on each conductor. If the change in SNR is greater than a predetermined threshold, then the transfer rate is re-calculated for the conductors requiring transfer rate adjustment as a function of SNR.

摘要翻译： 一种方法，系统和计算机程序产品，用于调整多导体电缆中的导体上的传输速率，包括监测每个导体上接收的信号，确定每个导体的信噪比（SNR），并调整一根或多根导体上的传输速率 基于相应的SNR。 在一个实施例中，多导体电缆是双绞线以太网电缆。 该方法还包括确定导体是否以最佳传输速率作为其SNR的函数发射，根据其SNR计算每个导体的最佳传输速率，并周期性地测量每个导体上的SNR变化。 如果SNR的变化大于预定阈值，则对于需要作为SNR的函数的传输速率调整的导体，重新计算传输速率。