公开(公告)号：US20170207908A1

公开(公告)日：2017-07-20

申请号：US15375059

申请日：2016-12-09

Applicant: INPHI CORPORATION

Inventor： Halil CIRIT ,  Karthik GOPALAKRISHNAN ,  Pulkit KHANDELWAL ,  Ravindran MOHANAVELU

IPC: H04L7/033 ,  H04L5/00

CPC classification number: H04L7/0332 ,  H03L7/00 ,  H03L7/0807 ,  H04L5/0048 ,  H04L7/033 ,  H04L25/14 ,  H04L27/02 ,  H04Q2213/03

Abstract: The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. The skew management module generates a control current based on output test patterns of the two communication lanes. The control current is integrated and compared to a reference voltage by a comparator, which generates an analog offset signal. A PLL of one of the communication lanes generates a corrected clock signal that is adjusted using the analog offset signal to remove or adjust the skew between the communication lanes. The corrected clock signal is used for output data. There are other embodiments as well.

公开(公告)号：US20180366898A1

公开(公告)日：2018-12-20

申请号：US16109605

申请日：2018-08-22

Applicant: INPHI CORPORATION

Inventor： Karim ABDELHALIM ,  Jorge PERNILLO ,  Halil CIRIT ,  Michael LE

IPC: H01S3/09 ,  H01S3/0933 ,  H03M1/08 ,  H01S3/091 ,  H01S5/042

CPC classification number: H01S3/09 ,  H01S3/0912 ,  H01S3/0933 ,  H01S5/042 ,  H01S5/0427 ,  H03M1/089 ,  H03M1/1047 ,  H03M1/687

Abstract: The present invention relates to telecommunication techniques and integrated circuit (IC) devices. In a specific embodiment, the present invention provides a laser deriver apparatus that includes a main DAC section and a mini DAC section. The main DAC section processes input signal received from a pre-driver array and generates an intermediate output signal. The mini DAC section provides a compensation signal to reduce distortion of the intermediate output signal. The intermediate output signal is coupled to output terminals through a cascode section and/or a T-coil section. There are other embodiments as well.

公开(公告)号：US20170257237A1

公开(公告)日：2017-09-07

申请号：US15404091

申请日：2017-01-11

Applicant: INPHI CORPORATION

Inventor： Halil CIRIT ,  Karthik S. GOPALAKRISHNAN

IPC: 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：US20200153192A1

公开(公告)日：2020-05-14

申请号：US16743611

申请日：2020-01-15

Applicant: INPHI CORPORATION

Inventor： Karim ABDELHALIM ,  Jorge PERNILLO ,  Halil CIRIT ,  Michael LE

IPC: H01S3/09 ,  H03M1/08 ,  H01S3/091 ,  H01S3/0933 ,  H03M1/10

Abstract: The present invention relates to telecommunication techniques and integrated circuit (IC) devices. In a specific embodiment, the present invention provides a laser deriver apparatus that includes a main DAC section and a mini DAC section. The main DAC section processes input signal received from a pre-driver array and generates an intermediate output signal. The mini DAC section provides a compensation signal to reduce distortion of the intermediate output signal. The intermediate output signal is coupled to output terminals through a cascode section and/or a T-coil section. There are other embodiments as well.