公开(公告)号：EP0963083A2

公开(公告)日：1999-12-08

申请号：EP99304279.5

申请日：1999-06-02

Applicant: FUJITSU LIMITED

Inventor： Tamura, Hirotaka, c/o Fujitsu Limited ,  Takauchi, Hideki, c/o Fujitsu Limited ,  Cheung, Tsz-Shing, c/o Fujitsu Limited ,  Gotoh, Kohtaroh, c/o Fujitsu Limited

IPC: H04L25/02

CPC classification number: H04L25/0282 ,  G11C7/1012 ,  G11C7/1048 ,  G11C7/1051 ,  G11C7/1069 ,  G11C7/22 ,  G11C7/222 ,  G11C8/08 ,  G11C11/4076 ,  G11C11/4096 ,  H03K19/018571 ,  H03L7/07 ,  H03L7/0812 ,  H04L25/0272 ,  H04L25/0274 ,  H04L25/0276 ,  H04L25/0278 ,  H04L25/028 ,  H04L25/0288 ,  H04L25/0292 ,  H04L25/03878 ,  H04L25/03885 ,  H04L25/10

Abstract: A driver circuit transmits a signal to a receiver circuit (2) through a signal transmission line (3). The driver circuit has an output driver (1), a front driver (4),and a level adjuster (5). The front driver (4) drives the output driver (1) and the level adjuster (5) adjusts the output level of the front driver (4). The output driver (1) generates a signal whose level is variable in response to an output level of the front driver (4).

Abstract translation: 一种驱动器电路发送信号通过信号传输线（3）的接收器电路（2）。 该驱动器电路具有向输出驱动器（1），前驱动器（4），和一个电平调节器（5）。 前驱动器（4）驱动的输出驱动器（1）和调节电平（5）bestimmt前驱动器（4）的输出电平。 所述输出驱动器（1）基因速率的信号，其电平是响应变量到前驱动器的输出电平（4）。

公开(公告)号：EP0940811A1

公开(公告)日：1999-09-08

申请号：EP99102886.1

申请日：1999-03-04

Applicant: PIONEER ELECTRONIC CORPORATION

Inventor： Kuribayashi, Hiroki ,  Miyanabe, Shogo

IPC: G11B20/10

CPC classification number: H04L25/03878 ,  G11B20/10009

Abstract: A waveform equalizer which can improve an S/N ratio without causing a jitter in a read signal read out from a recording medium. An amplitude level of the read signal read out from the recording medium is limited by a predetermined amplitude limitation value and, thereafter, is subjected to a filtering process.

Abstract translation: 波形均衡器，其能够提高S / N比，而不会从记录介质读出的读取信号中产生抖动。 从记录介质读出的读取信号的幅度电平受预定的幅度限制值的限制，此后进行滤波处理。

公开(公告)号：EP3157168B1

公开(公告)日：2018-12-26

申请号：EP16193368.4

申请日：2016-10-11

Applicant: Analog Devices Global Unlimited Company

Inventor： Pratt, Patrick

IPC: H03F1/32 ,  H03F3/189 ,  H03F3/24 ,  H03G5/00 ,  H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/3247 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/451 ,  H03M1/12 ,  H03M1/66 ,  H04B2001/0425 ,  H04L25/03878 ,  H04L27/368

Abstract: Otherwise incompatible digital predistortion and uptilt can be used together, such as in a cable television or other cable communications system having a frequency-dependent signal loss at high frequencies. The predistortion can be used to compensate for a nonlinear gain compression of a power amplifier at higher frequencies. Additional uptilt and equalizer circuits can be included to address deleterious distortion effects that may otherwise arise by using predistortion and uptilt together. Training and adaptation of various components are described. Fine and coarse uptilt adjustments can be provided.

公开(公告)号：EP3157168A1

公开(公告)日：2017-04-19

申请号：EP16193368.4

申请日：2016-10-11

Applicant: Analog Devices Global

Inventor： Pratt, Patrick

IPC: H03F1/32 ,  H03F3/189 ,  H03F3/24 ,  H03G5/00 ,  H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/3247 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/451 ,  H03M1/12 ,  H03M1/66 ,  H04B2001/0425 ,  H04L25/03878 ,  H04L27/368

Abstract: Otherwise incompatible digital predistortion and uptilt can be used together, such as in a cable television or other cable communications system having a frequency-dependent signal loss at high frequencies. The predistortion can be used to compensate for a nonlinear gain compression of a power amplifier at higher frequencies. Additional uptilt and equalizer circuits can be included to address deleterious distortion effects that may otherwise arise by using predistortion and uptilt together. Training and adaptation of various components are described. Fine and coarse uptilt adjustments can be provided.

Abstract translation: 否则，不兼容的数字预失真和上升可以一起使用，例如在有线电视或其它具有高频频率依赖信号损失的有线通信系统中。 预失真可用于补偿功率放大器在较高频率下的非线性增益压缩。 可以包括额外的上升和均衡器电路来解决通过使用预失真和上升在一起可能产生的有害的失真效应。 描述各种组件的训练和适应。 可以提供精细和粗糙的上调调整。

公开(公告)号：EP2502365B8

公开(公告)日：2015-10-28

申请号：EP11818935.6

申请日：2011-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： STOJANOVIC, Nebojsa

IPC: H04N3/23 ,  H03G1/04 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04L25/03878

公开(公告)号：EP2909947A1

公开(公告)日：2015-08-26

申请号：EP13846448.2

申请日：2013-10-18

Applicant: Ikanos Communications, Inc.

Inventor： ALLOIN, Laurent, Francis ,  BIYANI, Pravesh ,  PIERRUGUES, Laurent ,  ZAFARUDDIN, Syed Mohammad

IPC: H04B3/04

CPC classification number: H04B1/10 ,  H04B3/50 ,  H04L25/0256 ,  H04L25/0276 ,  H04L25/03878 ,  H04L2025/03414 ,  H04L2025/03522

Abstract: In general, the present invention provides methods and apparatuses for exploiting the extra degree of freedom provided by the sensing of the CM signal along with the DM signal at the receiver end of a wireline communication system. According to certain aspects, this extra degree of freedom can be used to cancel alien noises at the receiver in both upstream downstream directions. According to further aspects, a CM channel can be potentially used to exploit the diversity created in the CM channel along with the regular DM channel. This acts as the motivation for employing a diversity receiver scheme at the receiver, especially in downstream communications received at a Customer Premises.

公开(公告)号：EP2502365B1

公开(公告)日：2015-07-22

申请号：EP11818935.6

申请日：2011-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： NEBOJSA, Stojanovic

IPC: H04N3/23 ,  H03G1/04 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04L25/03878

公开(公告)号：EP2798742A1

公开(公告)日：2014-11-05

申请号：EP11878713.4

申请日：2011-12-30

Applicant: Intel Corporation

Inventor： ROYTMAN, Eduard, Edi ,  NAGARAJAN, Mahalingam, Mali ,  VEMPADA, Pradeep, R.

IPC: H03K19/0175 ,  H04L25/02

CPC classification number: H03K5/1565 ,  H03F3/45071 ,  H03F2200/144 ,  H03F2200/165 ,  H03F2200/375 ,  H03F2200/78 ,  H03K5/26 ,  H04L25/0274 ,  H04L25/0296 ,  H04L25/03878

Abstract: In some embodiments, a differential amplifier with duty cycle correction is provided.

公开(公告)号：EP2684327A4

公开(公告)日：2014-08-20

申请号：EP11860283

申请日：2011-03-09

Applicant: COMMW SCIENT IND RES ORG

Inventor： HUANG XIAOJING ,  GUO YINGJIE JAY ,  ZHANG JIAN

IPC: H04L27/00 ,  H03H17/02 ,  H03H17/06 ,  H04L25/03 ,  H04L25/14 ,  H04L27/26

CPC classification number: H04B1/0017 ,  H03H17/028 ,  H03H17/0642 ,  H04L25/03828 ,  H04L25/03834 ,  H04L25/03878 ,  H04L25/14 ,  H04L27/2628 ,  H04L27/2644 ,  H04L27/2649

公开(公告)号：EP2068518A4

公开(公告)日：2014-04-23

申请号：EP06798412

申请日：2006-09-28

Applicant: SPANSION LLC

Inventor： SHIMAMURA AKIRA ,  MITA KOICHI ,  FUJISHIMA HIDESHI ,  ARAI TAKASHI ,  KO SHUNICHI ,  TERASAWA TAKUYA ,  MIKAMI KOJI ,  KOMADA NAOYA

IPC: H04L25/03

CPC classification number: H04L25/03834 ,  H04L25/03878