公开(公告)号：US10686630B1

公开(公告)日：2020-06-16

申请号：US16511771

申请日：2019-07-15

Applicant: Mellanox Technologies, Ltd.

Inventor： Eyal David ,  Shai Cohen ,  Johan Jacob Mohr ,  Daniel Kedar ,  Stanislav Gurtovoy ,  Ran Sela ,  Aviv Berg

IPC: H03F1/32 ,  H04L25/02 ,  H04L25/03 ,  H04L27/06 ,  H04L25/49

Abstract: Embodiments are disclosed for channel estimation in a receiver of a communication system. An example method includes receiving, via a receiver of a communication system, an input signal. The example method further includes using a first event indicator embedded in an analog circuit of the receiver to slice the input signal to generate a sliced input signal and applying an offset to the input signal to generate an offsetted signal. The example method further includes using a second event indicator embedded in the analog circuit to slice the offsetted signal to generate a sliced offsetted signal. The example method further includes applying a first predefined delay to the sliced input signal and applying a second predefined delay to the sliced offsetted signal. The example method further includes generating a conditional ones signal based on the sliced input signal and the sliced offsetted signal and using the conditional ones signal to calibrate an equalizer embedded in the receiver.

公开(公告)号：US20240056380A1

公开(公告)日：2024-02-15

申请号：US18174701

申请日：2023-02-27

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Zvi Rechtman ,  Guy Lederman ,  Stanislav Gurtovoy ,  Ran Ravid ,  Lavi Koch ,  Oded Nadir

IPC: H04L45/02 ,  H04L45/00

CPC classification number: H04L45/02 ,  H04L45/20

Abstract: In one embodiment, a multi-segment communication network system includes nodes connected via links, a first node including a first receiver and transmitter, and a second node including a second receiver and transmitter, wherein the first transmitter is to transmit a link training frame including a training pattern to the second receiver, which is to receive the link training frame, the second node is to find a tuning factor to which to tune the first transmitter responsively to the training pattern, and generate a request indicative of the found tuning factor, the second transmitter is to send the request in the link training frame via a plurality of the links to the first receiver, the first receiver is to receive the request, and the first node is to tune at least one parameter of the first transmitter based on the tuning factor indicated in the request.

公开(公告)号：US10764095B1

公开(公告)日：2020-09-01

申请号：US16451819

申请日：2019-06-25

Applicant: Mellanox Technologies, Ltd.

Inventor： Daniel Kedar ,  Eyal David ,  Johan Jacob Mohr ,  Stanislav Gurtovoy

IPC: H04L25/03 ,  H04B1/16 ,  H04L25/02

Abstract: Embodiments are disclosed for tuning a continuous time linear equalizer embedded in a receiver of a communication system. An example method includes receiving an N-point estimation of a channel pulse response associated with an input signal. The method further includes calculating an estimated power spectral density for one or more desired frequency bands. The method further includes updating one or more parameters of a continuous time linear equalizer to adjust one or more power densities of the one or more desired frequency bands based on the one or more estimated power spectral densities calculated. The method further includes calculating, for each desired frequency band, an estimated power spectral density after updating the one or more parameters of the continuous time linear equalizer to adjust the one or more power densities of the one or more desired frequency bands.