公开(公告)号：US10804913B1

公开(公告)日：2020-10-13

申请号：US16127103

申请日：2018-09-10

Applicant: INPHI CORPORATION

Inventor： Mrunmay Talegaonkar ,  Jorge Pernillo ,  Junyi Sun ,  Praveen Prabha ,  Chang-Feng Loi ,  Yu Liao ,  Jamal Riani ,  Belal Helal ,  Karthik Gopalakrishnan ,  Aaron Buchwald

IPC: H04L7/00 ,  H03L7/197 ,  H04L7/033 ,  H03L7/099 ,  H03L7/087 ,  H03L7/08

Abstract: The present invention relates to data communication and electrical circuits. More specifically, embodiments of the present invention provide a clock and data recovery (CDR) architecture implementation for high data rate wireline communication links. In an embodiment, a CDR device includes a phase detector, a loop filter, and a fractional-N PLL. The fractional-N PLL generates output clock signal based on output of the loop filter. There are other embodiments as well.

公开(公告)号：US10785068B1

公开(公告)日：2020-09-22

申请号：US16676337

申请日：2019-11-06

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Ilya Lyubomirsky

IPC: H04B10/69 ,  H04L25/03 ,  H04B10/58 ,  H04L25/06 ,  H04B10/516

Abstract: The present invention is directed to communication methods and systems thereof. In a specific embodiment, a noise cancelation system includes a slicer that processes a data stream generates both PAM symbols and error data. An RIN estimator generates RIN data based on the PAM symbols and the error data. A filter removes non-RIN information from the RIN data. The filtered RIN data includes an offset term and a gain term, which are used to remove RIN noise from the data stream. There are other embodiments as well.

公开(公告)号：US10601518B2

公开(公告)日：2020-03-24

申请号：US16259760

申请日：2019-01-28

Applicant: INPHI CORPORATION

Inventor： Benjamin P. Smith ,  Jamal Riani ,  Sudeep Bhoja ,  Arash Farhoodfar ,  Vipul Bhatt

IPC: H04B10/69 ,  H04B10/58 ,  H04B10/2507 ,  H04B10/54 ,  H04B10/516 ,  H04B10/00

Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.

公开(公告)号：US10404289B1

公开(公告)日：2019-09-03

申请号：US15995036

申请日：2018-05-31

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Farshid Rafiee Rad ,  Benjamin Smith ,  Yu Liao ,  Sudeep Bhoja

IPC: H04L1/00 ,  H03M13/39

Abstract: The present invention is directed to data communication. More specifically, an embodiment of the present invention provides an error correction system. Input data signals are processed by a feedforward equalization module and a decision feedback back equalization module. Decisions generated by the decision feedback equalization module are processed by an error detection module, which determines error events associated with the decisions. The error detection module implements a reduced state trellis path. There are other embodiments as well.

公开(公告)号：US10135535B2

公开(公告)日：2018-11-20

申请号：US15640032

申请日：2017-06-30

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Sudeep Bhoja

IPC: H04L27/06 ,  H04B10/27 ,  H04L27/34 ,  H03K9/02 ,  H04B10/61 ,  H04B14/00 ,  H04B10/25 ,  H04L27/02

Abstract: The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using nDSQ format(s) over optical communication networks. In certain embodiments, the communication interface is used by various devices, such as spine switches and leaf switches, within a spine-leaf network architecture, which allows large amount of data to be shared among servers.

公开(公告)号：US10128955B2

公开(公告)日：2018-11-13

申请号：US15990003

申请日：2018-05-25

Applicant: INPHI CORPORATION

Inventor： Todd Rope ,  Radhakrishnan L. Nagarajan ,  Jamal Riani ,  Pulkit Khandelwal

IPC: H04B10/40 ,  H04B10/073 ,  H04B10/524 ,  H04B10/079

Abstract: A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources.

公开(公告)号：US09847839B2

公开(公告)日：2017-12-19

申请号：US15061923

申请日：2016-03-04

Applicant: INPHI CORPORATION

Inventor： Karthik Gopalakrishnan ,  Jamal Riani ,  Arun Tiruvur

IPC: H04B10/00 ,  H04B10/40 ,  H04L7/00 ,  H04L7/033 ,  H04B10/54

CPC classification number: H04B10/40 ,  H03K5/00 ,  H03K19/018521 ,  H03L7/093 ,  H03L7/099 ,  H03L7/1976 ,  H03L7/23 ,  H03L2207/06 ,  H04B10/541 ,  H04L7/0037 ,  H04L7/0062 ,  H04L7/0079 ,  H04L7/0087 ,  H04L7/0091 ,  H04L7/0331 ,  H04L25/00

Abstract: The present invention is directed to data communication. More specifically, embodiments of the present invention provide a transceiver that processes an incoming data stream and generates a recovered clock signal based on the incoming data stream. The transceiver includes a voltage gain amplifier that also performs equalization and provides a driving signal to track and hold circuits that hold the incoming data stream, which is stored by shift and holder buffer circuits. Analog to digital conversion is then performed on the buffer data by a plurality of ADC circuits. Various DSP functions are then performed over the converted data. The converted data are then encoded and transmitted in a PAM format. There are other embodiments as well.

公开(公告)号：US09729240B2

公开(公告)日：2017-08-08

申请号：US15170843

申请日：2016-06-01

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Sudeep Bhoja

IPC: H04B10/27 ,  H04L27/34 ,  H03K9/02 ,  H04B10/61 ,  H04B14/00 ,  H04L27/06 ,  H04B10/25 ,  H04L27/02

CPC classification number: H04B10/27 ,  H03K9/02 ,  H04B10/2504 ,  H04B10/61 ,  H04B14/004 ,  H04L27/02 ,  H04L27/06 ,  H04L27/34

Abstract: The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using nDSQ format(s) over optical communication networks. In certain embodiments, the communication interface is used by various devices, such as spine switches and leaf switches, within a spine-leaf network architecture, which allows large amount of data to be shared among servers.

公开(公告)号：US09654311B2

公开(公告)日：2017-05-16

申请号：US15283614

申请日：2016-10-03

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Sudeep Bhoja

IPC: H04L25/03 ,  H04L1/00 ,  H04Q11/00 ,  H04L27/06 ,  H04L25/49

CPC classification number: H04L25/03 ,  H04L1/004 ,  H04L1/0061 ,  H04L5/0048 ,  H04L25/03057 ,  H04L25/03885 ,  H04L25/4917 ,  H04L27/04 ,  H04L27/06 ,  H04L2025/03636 ,  H04Q11/0062 ,  H04Q2011/0088

Abstract: The present invention is directed to data communication systems and methods. More specifically, embodiments of the present invention provide a communication system that removes reflection signals. A digital data stream is processed through both tentative path and the main path. The tentative path uses a first DFE device and a reflection cancellation circuit to generate a correction signal for removing reflection signal from the digital data stream. A second DFE device removes ISI and other noises from the corrected digital data stream. There are other embodiments as well.

公开(公告)号：US09385812B2

公开(公告)日：2016-07-05

申请号：US14667236

申请日：2015-03-24

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Sudeep Bhoja

IPC: H04B10/27 ,  H04L27/34 ,  H03K9/02 ,  H04B10/61 ,  H04B14/00 ,  H04L27/06 ,  H04B10/25 ,  H04L27/02

CPC classification number: H04B10/27 ,  H03K9/02 ,  H04B10/2504 ,  H04B10/61 ,  H04B14/004 ,  H04L27/02 ,  H04L27/06 ,  H04L27/34

Abstract: The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using nDSQ format(s) over optical communication networks. In certain embodiments, the communication interface is used by various devices, such as spine switches and leaf switches, within a spine-leaf network architecture, which allows large amount of data to be shared among servers.

Abstract translation: 本发明涉及数据通信系统和方法。 更具体地，本发明的各种实施例提供了一种通信接口，其被配置为通过光通信网络使用nDSQ格式传输高带宽的数据。 在某些实施例中，通信接口由脊椎叶网络架构内的各种设备使用，例如脊柱交换机和叶片交换机，其允许在服务器之间共享大量的数据。