公开(公告)号：US09130797B1

公开(公告)日：2015-09-08

申请号：US14267568

申请日：2014-05-01

Applicant: LSI Corporation

Inventor： Chaitanya Palusa ,  Volodymyr Shvydun ,  Hiep T. Pham ,  Adam B. Healey

IPC: H04B1/38 ,  H04L25/03

CPC classification number: H04L25/03878 ,  H04L25/03146

Abstract: An interleaved track-and-hold front-end with multiphase clocks computes and propagates unrolled decision feedback equalization results along a pipeline with the final outputs selected from one of the interleaved previous output bits with a multiplexer operating over multiple unit intervals instead of one unit interval. An n-way interleaved serializer/deserializer utilizes an n unit interval multiplexer or n one unit interval multiplexers. Pipelined decision feedback equalization allows multiple, slower multiplexers.

Abstract translation: 具有多相时钟的交错跟踪和保持前端计算并沿着流水线传播展开的判决反馈均衡结果，其中最终输出从交织的先前输出位之一中选择，多路复用器以多个单位间隔工作，而不是一个单位间隔 。 n路交错串行器/解串器利用n单位间隔多路复用器或n个单位间隔多路复用器。 流水线判决反馈均衡允许多个较慢的多路复用器。

公开(公告)号：US20150236875A1

公开(公告)日：2015-08-20

申请号：US14221968

申请日：2014-03-21

Applicant: LSI Corporation

Inventor： Chaitanya Palusa ,  Adam B. Healey ,  Hiep T. Pham ,  Volodymyr Shvydun

IPC: H04L25/03

CPC classification number: H04L25/03057 ,  H03H2218/06 ,  H03M1/00 ,  H03M1/14 ,  H03M2201/4135 ,  H04L1/06

Abstract: A multi-stage system and method for correcting intersymbol interference is disclosed. The system includes a first estimation module configured to sample an input signal to produce a first set of estimated data bits. The system also includes a second estimation module configured to sample the input signal phase shifted by a predetermined phase shift unit to produce a second set of estimated data bits, wherein the second set of estimated data bits are produced at least partially based on the first set of estimated data bits and at least one pre-cursor coefficient.

Abstract translation: 公开了一种用于校正码间干扰的多级系统和方法。 该系统包括被配置为对输入信号进行采样以产生第一组估计数据位的第一估计模块。 该系统还包括第二估计模块，其被配置为对由预定相移单元移位的输入信号相位进行采样以产生第二组估计数据位，其中第二组估计数据位至少部分地基于第一组产生 的估计数据位和至少一个前置标准系数。

公开(公告)号：US20150207648A1

公开(公告)日：2015-07-23

申请号：US14176728

申请日：2014-02-10

Applicant: LSI Corporation

Inventor： Chaitanya Palusa ,  Tomasz Prokop ,  Hiep T. Pham ,  Volodymyr Shvydun ,  Adam B. Healey

IPC: H04L25/03 ,  H04L27/00 ,  H04L7/00

CPC classification number: H04L25/03057 ,  H03M1/1215 ,  H03M1/38 ,  H04L7/0087 ,  H04L7/02 ,  H04L25/03 ,  H04L27/0002

Abstract: Modular, low power serializer-deserializer receivers and methods for configuring such receivers are disclosed. The disclosed receivers are configured to sample input signals at the front-end utilizing a plurality of track-and-hold circuits time-interleaved based on a plurality of phase-shifted clock signals. The disclosed receivers are also modular and various processing components, including analog front-end and equalizers, are selectively utilized based on the determined length of the communication channel, ranging from ultra short reach applications to very short reach, medium reach, long reach and extra long reach applications.

Abstract translation: 公开了模块化的低功率串行器 - 解串器接收器和用于配置这种接收器的方法。 所公开的接收机被配置为利用基于多个相移时钟信号时间交织的多个跟踪和保持电路来采样前端的输入信号。 所公开的接收机也是模块化的，并且基于确定的通信信道长度有选择地使用包括模拟前端和均衡器的各种处理组件，从超短距离应用到非常短的范围，中等到达，长距离和额外的 长期应用。

公开(公告)号：US20140204987A1

公开(公告)日：2014-07-24

申请号：US13745363

申请日：2013-01-18

Applicant: LSI CORPORATION

Inventor： Viswanath Annampedu ,  Amaresh V. Malipatil ,  Adam B. Healey

IPC: H04L1/20

CPC classification number: H04L1/20 ,  H04B17/345

Abstract: The present invention includes receiving a signal from an output of a dispersive communication channel established between a transmitter and a receiver, determining normalized Nyquist energy of the signal transmitted along the dispersive communication channel established between the transmitter and the receiver, and generating a mapping table configured to identify peaking value at or above a selected tolerance level at or near the Nyquist frequency for a signal received by the receiver based on the normalized Nyquist energy.

Abstract translation: 本发明包括从建立在发射机和接收机之间的分散通信信道的输出接收信号，确定沿着在发射机和接收机之间建立的色散通信信道发送的信号的归一化奈奎斯特能量，并生成配置的映射表 以在基于归一化奈奎斯特能量的接收机接收的信号上识别在奈奎斯特频率处或接近奈奎斯特频率处的等于或高于所选公差电平的峰值。