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公开(公告)号:US11888613B2
公开(公告)日:2024-01-30
申请号:US17592054
申请日:2022-02-03
Applicant: MARVELL ASIA PTE LTD.
Inventor: Benjamin Smith , Jamal Riani , Arash Farhoodfar , Sudeep Bhoja
CPC classification number: H04L1/0057 , H03M13/19 , H03M13/251 , H03M13/2906 , H04L1/0041 , H04L1/0059 , H04L1/0064 , H04L1/0071 , H04L1/0058 , H04L1/0643 , H04L27/2627
Abstract: An optical transmitter includes a first encoder, a first interleaver, a second encoder, a mapper, a second interleaver, and a frame generator. The first encoder is configured to encode data using a staircase code to generate first codewords. The first interleaver is configured to interleave the first codewords using convolutional interleaving to spread a transmission order of the first codewords. The second encoder is configured to encode the interleaved first codewords using a second code to generate second codewords. The mapper is configured to map the second codewords to transmit symbols. The second interleaver is configured to interleave the transmit symbols to distribute the transmit symbols between pilot symbols. The frame generator is configured to generate a transmit frame including the interleaved transmit symbols and the pilot symbols.
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公开(公告)号:US11245493B2
公开(公告)日:2022-02-08
申请号:US17108386
申请日:2020-12-01
Applicant: MARVELL ASIA PTE, LTD.
Inventor: Benjamin P. Smith , Jamal Riani , Arash Farhoodfar , Sudeep Bhoja
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.
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公开(公告)号:US20220158759A1
公开(公告)日:2022-05-19
申请号:US17592054
申请日:2022-02-03
Applicant: MARVELL ASIA PTE LTD.
Inventor: Benjamin Smith , Jamal Riani , Arash Farhoodfar , Sudeep Bhoja
Abstract: An optical transmitter includes a first encoder, a first interleaver, a second encoder, a mapper, a second interleaver, and a frame generator. The first encoder is configured to encode data using a staircase code to generate first codewords. The first interleaver is configured to interleave the first codewords using convolutional interleaving to spread a transmission order of the first codewords. The second encoder is configured to encode the interleaved first codewords using a second code to generate second codewords. The mapper is configured to map the second codewords to transmit symbols. The second interleaver is configured to interleave the transmit symbols to distribute the transmit symbols between pilot symbols. The frame generator is configured to generate a transmit frame including the interleaved transmit symbols and the pilot symbols.
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公开(公告)号:US11277224B2
公开(公告)日:2022-03-15
申请号:US16928821
申请日:2020-07-14
Applicant: Marvell Asia Pte Ltd.
Inventor: Jamal Riani , Benjamin Smith , Volodymyr Shvydun , Sudeep Bhoja , Arash Farhoodfar
Abstract: A method for data transmission includes receiving a data stream from a host device, the data stream as received from the host device including encoded data, separating the encoded data in the data stream into first data blocks and second data blocks, and generating a first forward error correction (FEC) block. The first FEC block includes a first parity section and a first data section, the first parity section includes a first parity bit corresponding to the first data blocks and a second parity bit corresponding to the second data blocks, and the first data section includes the first data blocks and the second data blocks. The method further includes transmitting the first FEC block.
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公开(公告)号:US12184414B2
公开(公告)日:2024-12-31
申请号:US18421304
申请日:2024-01-24
Applicant: MARVELL ASIA PTE LTD
Inventor: Benjamin Smith , Jamal Riani , Arash Farhoodfar , Sudeep Bhoja
Abstract: An optical transmitter includes a first encoder, a first interleaver, a second encoder, a mapper, a second interleaver, and a frame generator. The first encoder is configured to encode data using a staircase code to generate first codewords. The first interleaver is configured to interleave the first codewords using convolutional interleaving to spread a transmission order of the first codewords. The second encoder is configured to encode the interleaved first codewords using a second code to generate second codewords. The mapper is configured to map the second codewords to transmit symbols. The second interleaver is configured to interleave the transmit symbols to distribute the transmit symbols between pilot symbols. The frame generator is configured to generate a transmit frame including the interleaved transmit symbols and the pilot symbols.
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公开(公告)号:US11855702B2
公开(公告)日:2023-12-26
申请号:US17674234
申请日:2022-02-17
Applicant: Marvell Asia Pte., Ltd.
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
CPC classification number: H04B10/58 , H04B10/00 , H04B10/2507 , H04B10/25073 , H04B10/5161 , H04B10/541 , H04B10/697 , 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.
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公开(公告)号:US11575396B2
公开(公告)日:2023-02-07
申请号:US17347315
申请日:2021-06-14
Applicant: MARVELL ASIA PTE, LTD.
Inventor: Jamal Riani , Farshid Rafiee Rad , Benjamin P. Smith , Yu Liao , Sudeep Bhoja
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.
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公开(公告)号:US20220173814A1
公开(公告)日:2022-06-02
申请号:US17674234
申请日:2022-02-17
Applicant: Marvell Asia Pte., Ltd.
Inventor: Benjamin P. SMITH , Jamal Riani , Sudeep Bhoja , Arash Farhoodfar , Vipul Bhatt
IPC: H04B10/58 , H04B10/2507 , H04B10/69 , 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.
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公开(公告)号:US11258518B2
公开(公告)日:2022-02-22
申请号:US16951653
申请日:2020-11-18
Applicant: MARVELL ASIA PTE, LTD.
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.
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公开(公告)号:US11804925B2
公开(公告)日:2023-10-31
申请号:US17693931
申请日:2022-03-14
Applicant: Marvell Asia Pte Ltd.
Inventor: Jamal Riani , Benjamin Smith , Volodymyr Shvydun , Sudeep Bhoja , Arash Farhoodfar
CPC classification number: H04L1/0041 , H03M13/1515 , H03M13/2906
Abstract: A method for data transmission includes receiving a data stream from a host device, the data stream as received from the host device including encoded data, separating the encoded data in the data stream into first data blocks and second data blocks, and generating a first forward error correction (FEC) block. The first FEC block includes a first parity section and a first data section, the first parity section includes a first parity bit corresponding to the first data blocks and a second parity bit corresponding to the second data blocks, and the first data section includes the first data blocks and the second data blocks. The method further includes transmitting the first FEC block.
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