公开(公告)号：US09780797B2

公开(公告)日：2017-10-03

申请号：US15464750

申请日：2017-03-21

Applicant: INPHI CORPORATION

Inventor： Karthik S. Gopalakrishnan ,  Guojun Ren ,  Parmanand Mishra

IPC: H03L7/081 ,  H03L7/08 ,  H04L25/03

CPC classification number: H03L7/0812 ,  H03K5/131 ,  H03K5/135 ,  H03K5/14 ,  H03K2005/00013 ,  H03K2005/00052 ,  H03K2005/00286 ,  H03L3/00 ,  H03L7/08 ,  H03L7/0807 ,  H03L7/0814 ,  H04L5/0053 ,  H04L7/002 ,  H04L7/0331 ,  H04L25/03273 ,  H04L27/04

Abstract: The present invention relates generally to integrated circuits. More particularly, the present invention provides a circuit and method for regulating a voltage for a high speed serializer/deserializer (SerDes) device. But it will be recognized that the technique can be used for regulating memory devices (e.g., DDR 4 SDRAM devices, DDR4 register devices, DDR4 controller devices), and other high speed data applications. In various embodiments, phase-interpolator is implemented in conjunction with a delay-lock loop (DLL) and an SR latch, where one or more outputs of the DLL is used by the SR latch. Additionally, such techniques can be used for a variety of applications such as network and/or computer storage systems, computer servers, hand held computing devices, portable computing devices, computer systems, network appliances and/or switches, routers, and gateways, and the like.

公开(公告)号：US09755870B1

公开(公告)日：2017-09-05

申请号：US15404091

申请日：2017-01-11

Applicant: INPHI CORPORATION

Inventor： Halil Cirit ,  Karthik S. Gopalakrishnan

IPC: H03K7/02 ,  H03K9/02 ,  H04L27/02 ,  H04B17/336

CPC classification number: H04L27/02 ,  H04B10/541 ,  H04B17/336 ,  H04L25/08 ,  H04L25/4917

Abstract: The present invention is directed to communication systems. More specifically, embodiments of the present invention provide a technique and system thereof for performing eye modulation. Eye modulation is performed at the transmission side of a PAM communication system to compensate for distortion and non-linearity and generate an output waveform. Spacing among eye levels is adjusted by performing symmetric modulation using α parameter and asymmetric modulation using β parameter. A correction module measures the output waveform and sends feedback signals to a control module to adjust the α parameter and the β parameter. There are other embodiments as well.

公开(公告)号：US09587992B1

公开(公告)日：2017-03-07

申请号：US14021955

申请日：2013-09-09

Applicant: Inphi Corporation

Inventor： Sadettin Cirit ,  Karthik S. Gopalakrishnan

IPC: G01K7/00

CPC classification number: G01K7/00 ,  G01K1/14 ,  G01K7/01 ,  G01K13/00 ,  G01K15/005 ,  G01K2219/00 ,  G01R19/2503 ,  H04Q9/00

Abstract: The present invention relates to integrated circuits. More specifically, embodiments of the present invention provide methods and systems for determining temperatures of an integrated circuit using an one-point calibration technique, where temperature is determined by a single temperature measurement and calculation using known electrical characteristics of the integrated circuit.

Abstract translation: 集成电路技术领域本发明涉及集成电路。 更具体地，本发明的实施例提供了使用单点校准技术来确定集成电路的温度的方法和系统，其中温度通过单个温度测量和使用集成电路的已知电气特性的计算来确定。

公开(公告)号：US09559880B1

公开(公告)日：2017-01-31

申请号：US15061874

申请日：2016-03-04

Applicant: INPHI CORPORATION

Inventor： Halil Cirit ,  Karthik S. Gopalakrishnan

IPC: H03K7/02 ,  H03K9/02 ,  H04L25/08 ,  H04L25/49 ,  H04B10/54

CPC classification number: H04L27/02 ,  H04B10/541 ,  H04B17/336 ,  H04L25/08 ,  H04L25/4917

Abstract: The present invention is directed to communication systems. More specifically, embodiments of the present invention provide a technique and system thereof for performing eye modulation. Eye modulation is performed at the transmission side of a PAM communication system to compensate for distortion and non-linearity and generate an output waveform. Spacing among eye levels is adjusted by performing symmetric modulation using α parameter and asymmetric modulation using β parameter. A correction module measures the output waveform and sends feedback signals to a control module to adjust the α parameter and the β parameter. There are other embodiments as well.

Abstract translation: 本发明涉及通信系统。 更具体地，本发明的实施例提供了一种用于执行眼睛调制的技术和系统。 在PAM通信系统的发送侧执行眼睛调制，以补偿失真和非线性并产生输出波形。 通过使用α参数和使用β参数的不对称调制执行对称调制来调整眼睛水平之间的间距。 校正模块测量输出波形，并向控制模块发送反馈信号，以调整α参数和β参数。 还有其它实施例。

公开(公告)号：US08824616B1

公开(公告)日：2014-09-02

申请号：US13802248

申请日：2013-03-13

Applicant: Inphi Corporation

Inventor： Karthik S. Gopalakrishnan

IPC: H03D3/24

CPC classification number: H03K5/131 ,  H03K5/135 ,  H03L7/08

Abstract: In an example, the phase interpolator (PI) is provided to adjust the phase of a clock such that the phase is aligned to an incoming data pattern from a data stream. The data can be captured from a device such as a flip-flop or the like. The present technique uses a PI (digital to phase) and a digital state machine in a feedback loop to set the correct digital code to the PI inputs to achieve an appropriate clock phase. Of course, there can be variations.

Abstract translation: 在一个示例中，提供相位插值器（PI）以调整时钟的相位，使得该相位与来自数据流的输入数据模式对准。 可以从诸如触发器等的装置捕获数据。 本技术在反馈环路中使用PI（数字到相位）和数字状态机将正确的数字代码设置为PI输入以实现适当的时钟相位。 当然可以有变化。