公开(公告)号：US08885766B2

公开(公告)日：2014-11-11

申请号：US13952402

申请日：2013-07-26

Applicant: Inphi Corporation

Inventor： Jamal Riani ,  Sudeep Bhoja

IPC: H04L27/36 ,  H04L27/34

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。

公开(公告)号：US10887049B2

公开(公告)日：2021-01-05

申请号：US16444421

申请日：2019-06-18

Applicant: INPHI CORPORATION

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

IPC: H04L1/00 ,  H03M13/19 ,  H03M13/25 ,  H03M13/29 ,  H04L1/06 ,  H04L27/26

Abstract: The present invention relates to data communication systems and methods thereof. More specifically, embodiments of the present invention provide a data transmission method. Data are encoded with staircase encoder, and staircase coded blocks are first interleaved then combined into outer code frames. Code frames additionally include sync words and padding bits. A second interleaving is applied to the bits of the code frames, and Hamming encoding is performed on the output of the second interleaver. Hamming codewords are Gray-mapped to dual-polarized quadrature-amplitude-modulation (DP-QAM) symbols, and a third interleaving of the symbols from a set of successive Hamming codewords is performed. Pilot symbols are inserted periodically into the stream of DP-QAM symbols. There are other embodiments as well.

公开(公告)号：US10749629B2

公开(公告)日：2020-08-18

申请号：US16403408

申请日：2019-05-03

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Benjamin P. Smith ,  Volodymyr Shvydun ,  Sudeep Bhoja ,  Arash Farhoodfar

IPC: H04L1/00 ,  H04B14/02 ,  H03M13/29

Abstract: The present invention is directed to data communication systems and techniques thereof. More specifically, embodiments of the present invention provide an FEC encoder that generates parity symbols that are embedded into FEC blocks. An FEC decoder determines whether to perform error correction based on the parity symbols. When performing error correction, the decoder selects a worst symbol from a segment of symbols, and the worst symbol is corrected. There are other embodiments as well.

公开(公告)号：US09948396B2

公开(公告)日：2018-04-17

申请号：US15280873

申请日：2016-09-29

Applicant: INPHI CORPORATION

Inventor： Sudeep Bhoja ,  Chao Xu ,  Hari Shankar

IPC: H04B10/50 ,  H04B10/27 ,  H04B10/2575 ,  H04B10/40 ,  H04B10/69 ,  H04B10/2507 ,  H04B10/516 ,  H04B10/564 ,  H04L1/00 ,  H04L7/033

CPC classification number: H04B10/2575 ,  H04B10/2507 ,  H04B10/27 ,  H04B10/40 ,  H04B10/50 ,  H04B10/503 ,  H04B10/5161 ,  H04B10/564 ,  H04B10/695 ,  H04L1/0041 ,  H04L7/0331

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 PAM format(s) over optical communication networks. A feedback mechanism is provided for adjusting the transmission power levels. There are other embodiments as well.

公开(公告)号：US20170230119A1

公开(公告)日：2017-08-10

申请号：US15040812

申请日：2016-02-10

Applicant: INPHI CORPORATION

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

IPC: H04B10/58 ,  H04B10/516

CPC classification number: H04B10/58 ,  H04B10/00 ,  H04B10/2507 ,  H04B10/5161 ,  H04B10/6971

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：US09197324B1

公开(公告)日：2015-11-24

申请号：US13802275

申请日：2013-03-13

Applicant: Inphi Corporation

Inventor： Sudeep Bhoja ,  Chao Xu ,  Hari Shankar

IPC: H04B10/00 ,  H04B10/04 ,  H04B10/08 ,  H04B10/27

CPC classification number: H04B10/2575 ,  H04B10/2507 ,  H04B10/27 ,  H04B10/40 ,  H04B10/50 ,  H04B10/503 ,  H04B10/5161 ,  H04B10/564 ,  H04B10/695 ,  H04L1/0041 ,  H04L7/0331

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 PAM format(s) over optical communication networks. A feedback mechanism is provided for adjusting the transmission power levels. There are other embodiments as well.

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一种通信接口，其被配置为通过光通信网络使用PAM格式在高带宽上传送数据。 提供了一种用于调整发射功率电平的反馈机制。 还有其它实施例。

公开(公告)号：US09020083B2

公开(公告)日：2015-04-28

申请号：US14511087

申请日：2014-10-09

Applicant: Inphi Corporation

Inventor： Jamal Riani ,  Sudeep Bhoja

IPC: H03K7/02 ,  H03K9/02 ,  H04B10/61 ,  H04L27/06 ,  H04B14/00 ,  H04L27/34

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。

公开(公告)号：US11038538B2

公开(公告)日：2021-06-15

申请号：US16827355

申请日：2020-03-23

Applicant: INPHI CORPORATION

Inventor： Jamal Riani ,  Farshid Rafiee Rad ,  Benjamin P. 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：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.