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公开(公告)号：US09780881B1
公开(公告)日：2017-10-03
申请号：US14881401
申请日：2015-10-13
Applicant: INPHI CORPORATION
Inventor： Todd Rope , Radhakrishnan L. Nagarajan , Jamal Riani , Pulkit Khandelwal
IPC: H04B10/40 , H04B10/079
CPC classification number: H04B10/40 , H04B10/0731 , H04B10/0795 , H04B10/524
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.
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公开(公告)号：US20170257168A1
公开(公告)日：2017-09-07
申请号：US15061923
申请日：2016-03-04
Applicant: INPHI CORPORATION
Inventor： Karthik Gopalakrishnan , Jamal Riani , Arun Tiruvur
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.
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公开(公告)号：US10951318B2
公开(公告)日：2021-03-16
申请号：US16696913
申请日：2019-11-26
Applicant: INPHI CORPORATION
Inventor： Karthik Gopalakrishnan , Jamal Riani , Arun Tiruvur
IPC: H04B10/00 , H04L7/04 , H03K7/02 , H04B10/40 , H03K5/00 , H03K19/0185 , H03L7/093 , H03L7/099 , H03L7/197 , H03L7/23 , H04L7/00 , H04L25/00 , H04L25/49 , H04B10/54 , H04L7/033
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.
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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
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：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
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.
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Patent Agency Ranking
公开(公告)号：US09866231B2
公开(公告)日：2018-01-09
申请号：US15426506
申请日：2017-02-07
Applicant: INPHI CORPORATION
Inventor： Michael Le , James Gorecki , Jamal Riani , Jorge Pernillo , Amber Tan , Karthik Gopalakrishnan , Belal Helal , Chang-Feng Loi , Irene Quek , Guojun Ren
CPC classification number: H03M1/38 , H03M1/0604 , H03M1/1038 , H03M1/121 , H03M1/1215 , H03M1/1245 , H03M1/468 , H04L25/03012 , H04L25/03019 , H04L25/03878
Abstract: In an example, the present invention provides an analog to digital converter device for a high speed data transmission from 1 GS-s to 100 GS-s, although there can be other variations. In an example, the device has an input receiver device coupled to a transimpedance amplifier. In an example, the transimpedance amplifier is coupled to an input stream of data at 10 GHz to 100 GHz, or other variations.
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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.
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公开(公告)号：US09602116B1
公开(公告)日：2017-03-21
申请号：US14990309
申请日：2016-01-07
Applicant: INPHI CORPORATION
Inventor： Michael Le , James Gorecki , Jamal Riani , Jorge Pernillo , Amber Tan , Karthik Gopalakrishnan , Belal Helal , Chang-Feng Loi , Irene Quek , Guojun Ren
CPC classification number: H03M1/38 , H03M1/0604 , H03M1/1038 , H03M1/121 , H03M1/1215 , H03M1/1245 , H03M1/468 , H04L25/03012 , H04L25/03019 , H04L25/03878
Abstract: In an example, the present invention provides an analog to digital converter device for a high speed data transmission from 1 GS-s to 100 GS-s, although there can be other variations. In an example, the device has an input receiver device coupled to a transimpedance amplifier. In an example, the transimpedance amplifier is coupled to an input stream of data at 10 GHz to 100 GHz, or other variations.
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29.发明授权公开(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
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。
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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
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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