公开(公告)号：US20140177768A1

公开(公告)日：2014-06-26

申请号：US13722429

申请日：2012-12-20

Applicant: BROADCOM CORPORATION

Inventor： Frank van der Goes ,  Jan Roelof Westra

IPC: H04L27/00

CPC classification number: H04L27/0002 ,  H04B1/0042 ,  H04B1/123

Abstract: A receiver is disclosed that is capable of correcting for harmonic distortion injected into received analog signals. The receiver splits the analog signal in the analog front-end and modifies the split analog signals with a difference signal. After amplification and/or sampling, the modified analog signals are recombined in a main data pathway and are kept separate in a secondary pathway. Utilizing the difference signal, a feedback loop that includes distorters and an LMS filter detects the distortion coefficient of the harmonic distortion. A distorter in the main data pathway utilizes the detected distortion coefficient to correct the harmonic distortion in the analog signal.

Abstract translation: 公开了能够校正注入到接收的模拟信号中的谐波失真的接收机。 接收器将模拟前端的模拟信号分开，并用差分信号修改分离的模拟信号。 在放大和/或采样之后，修改的模拟信号在主数据通路中重组，并在次级途径中保持分离。 利用差分信号，包括不变频器和LMS滤波器的反馈回路检测谐波失真的失真系数。 主数据通道中的变形器利用检测到的失真系数来校正模拟信号中的谐波失真。

公开(公告)号：US09031177B2

公开(公告)日：2015-05-12

申请号：US13722429

申请日：2012-12-20

Applicant: Broadcom Corporation

Inventor： Frank van der Goes ,  Jan Roelof Westra

IPC: H04B1/10 ,  H04L27/00

CPC classification number: H04L27/0002 ,  H04B1/0042 ,  H04B1/123

Abstract: A receiver is disclosed that is capable of correcting for harmonic distortion injected into received analog signals. The receiver splits the analog signal in the analog front-end and modifies the split analog signals with a difference signal. After amplification and/or sampling, the modified analog signals are recombined in a main data pathway and are kept separate in a secondary pathway. Utilizing the difference signal, a feedback loop that includes distorters and an LMS filter detects the distortion coefficient of the harmonic distortion. A distorter in the main data pathway utilizes the detected distortion coefficient to correct the harmonic distortion in the analog signal.

Abstract translation: 公开了能够校正注入到接收的模拟信号中的谐波失真的接收机。 接收器将模拟前端的模拟信号分开，并用差分信号修改分离的模拟信号。 在放大和/或采样之后，修改的模拟信号在主数据通路中重组，并在次级途径中保持分离。 利用差分信号，包括不变频器和LMS滤波器的反馈回路检测谐波失真的失真系数。 主数据通道中的变形器利用检测到的失真系数来校正模拟信号中的谐波失真。

公开(公告)号：US09543752B2

公开(公告)日：2017-01-10

申请号：US14042436

申请日：2013-09-30

Applicant: BROADCOM CORPORATION

Inventor： Jan Roelof Westra ,  Jan Mulder ,  Qiongna Zhang ,  Jeffrey Allan Riley ,  Davide Vecchi

IPC: H02H3/20 ,  H01L23/60 ,  H01L27/02 ,  H01Q1/50

CPC classification number: H02H3/20 ,  H01L23/60 ,  H01L27/0248 ,  H01Q1/50

Abstract: A device for digitally protecting against an overvoltage event may include a front-end circuit, an overvoltage protection circuit, and a protection switch. The protection switch may be coupled to the overvoltage protection circuit and may be configured to decouple the front-end circuit from an external medium, in response to a clamp signal. The overvoltage protection circuit may be configured to detect the overvoltage event at one or more nodes of a circuit. In response to the detection of the overvoltage event, the overvoltage protection circuit may generate the clamp signal to activate the protection switch.

Abstract translation: 用于数字防止过电压事件的装置可以包括前端电路，过电压保护电路和保护开关。 保护开关可以耦合到过电压保护电路，并且可以被配置为响应于钳位信号将前端电路与外部介质去耦。 过电压保护电路可以被配置为检测电路的一个或多个节点处的过电压事件。 响应于过电压事件的检测，过电压保护电路可产生钳位信号以激活保护开关。