公开(公告)号：US08948237B2

公开(公告)日：2015-02-03

申请号：US13734619

申请日：2013-01-04

Applicant: Broadcom Corporation

Inventor： Namik Kemal Kocaman ,  Afshin Momtaz ,  Velu Chellam Pillai ,  Vivek Telang ,  Sundararajan Chidambara ,  Magesh Valliappan

IPC: H04B3/46 ,  H04B17/00 ,  H04L27/08 ,  H03F3/195 ,  H04L25/03

CPC classification number: H04B17/21 ,  H03F3/195 ,  H03F2200/375 ,  H03F2200/405 ,  H04L25/03019 ,  H04L27/08

Abstract: An apparatus and method is disclosed to compensate for one or more offsets in a communications signal. A communications receiver may carry out an offset adjustment algorithm to compensate for the one or more offsets. An initial search procedure determines one or more signal metric maps for one or more selected offset adjustment corrections from the one or more offset adjustment corrections. The offset adjustment algorithm determines one or more optimal points for one or more selected offset adjustment correction based upon the one or more signal maps. The adaptive offset algorithm adjusts each of the one or more selected offset adjustment corrections to their respective optimal points and/or each of one or more non-selected offset adjustment corrections to a corresponding one of a plurality of possible offset corrections to provide one or more adjusted offset adjustment corrections. A tracking mode procedure optimizes the one or more adjusted offset adjustment corrections.

Abstract translation: 公开了一种用于补偿通信信号中的一个或多个偏移的装置和方法。 通信接收机可以执行偏移调整算法来补偿一个或多个偏移。 初始搜索过程从一个或多个偏移调整校正确定一个或多个所选择的偏移调整校正的一个或多个信号度量图。 偏移调整算法基于一个或多个信号映射确定一个或多个所选偏移调整校正的一个或多个最优点。 自适应偏移算法将一个或多个所选择的偏移调整校正中的每一个调整到它们各自的最佳点和/或一个或多个未选择的偏移调整校正中的每一个到多个可能的偏移校正中的对应的一个，以提供一个或多个 调整后的偏移调整校正。 跟踪模式过程优化一个或多个经调整的偏移调整校正。

公开(公告)号：US20130121391A1

公开(公告)日：2013-05-16

申请号：US13734619

申请日：2013-01-04

Applicant: Broadcom Corporation

Inventor： Namik Kemal Kocaman ,  Afshin Momtaz ,  Velu Chellam Pillai ,  Vivek Telang ,  Sundararajan Chidambara ,  Magesh Valliappan

IPC: H04B17/00

CPC classification number: H04B17/21 ,  H03F3/195 ,  H03F2200/375 ,  H03F2200/405 ,  H04L25/03019 ,  H04L27/08

Abstract: An apparatus and method is disclosed to compensate for one or more offsets in a communications signal. A communications receiver may carry out an offset adjustment algorithm to compensate for the one or more offsets. An initial search procedure determines one or more signal metric maps for one or more selected offset adjustment corrections from the one or more offset adjustment corrections. The offset adjustment algorithm determines one or more optimal points for one or more selected offset adjustment correction based upon the one or more signal maps. The adaptive offset algorithm adjusts each of the one or more selected offset adjustment corrections to their respective optimal points and/or each of one or more non-selected offset adjustment corrections to a corresponding one of a plurality of possible offset corrections to provide one or more adjusted offset adjustment corrections. A tracking mode procedure optimizes the one or more adjusted offset adjustment corrections.

Abstract translation: 公开了一种用于补偿通信信号中的一个或多个偏移的装置和方法。 通信接收机可以执行偏移调整算法来补偿一个或多个偏移。 初始搜索过程从一个或多个偏移调整校正确定一个或多个所选择的偏移调整校正的一个或多个信号度量图。 偏移调整算法基于一个或多个信号映射确定一个或多个所选偏移调整校正的一个或多个最优点。 自适应偏移算法将一个或多个所选择的偏移调整校正中的每一个调整到其各自的最佳点和/或一个或多个未选择的偏移调整校正中的每一个，以适应多个可能的偏移校正中的对应的一个，以提供一个或多个 调整后的偏移调整校正。 跟踪模式过程优化一个或多个经调整的偏移调整校正。

公开(公告)号：US09325316B1

公开(公告)日：2016-04-26

申请号：US14709368

申请日：2015-05-11

Applicant: BROADCOM CORPORATION

Inventor： Amr Amin Hafez Amin Abou-El-Sonoun ,  Ramy Awad ,  Mohammed Abdul-Latif ,  Adesh Garg ,  Henry Park ,  Anand Jitendra Vasani ,  Ullas Singh ,  Namik Kemal Kocaman ,  Afshin Momtaz

IPC: H03L5/02 ,  H03K19/0185

CPC classification number: H03K19/018514

Abstract: A low-power high-swing current-mode logic (CML) driver circuit includes a first differential-pair and a second differential-pair. The first differential-pair includes first transistors, and is coupled to a first voltage supply that supplies a first voltage. The second differential-pair includes second transistors, and a common node of the second differential-pair is coupled to a second voltage supply. The second voltage supply supplies a second voltage that is higher than the first voltage. Control terminals of the first transistors are coupled to control terminals of the second transistors to form input nodes of the driver circuit.

Abstract translation: 低功率高频摆动电流模式逻辑（CML）驱动电路包括第一差分对和第二差分对。 第一差分对包括第一晶体管，并且耦合到提供第一电压的第一电压源。 第二差分对包括第二晶体管，并且第二差分对的公共节点耦合到第二电压源。 第二电压源提供高于第一电压的第二电压。 第一晶体管的控制端子耦合到第二晶体管的控制端，以形成驱动器电路的输入节点。