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    Method and system for receiver configuration based on a priori knowledge of noise
    21.
    发明授权
    Method and system for receiver configuration based on a priori knowledge of noise 有权
    基于噪声的先验知识的接收机配置方法和系统

    公开(公告)号：US08990864B2

    公开(公告)日：2015-03-24

    申请号：US13916130

    申请日：2013-06-12

    Applicant: MaxLinear, Inc.

    Inventor： Anand Anandakumar ,  Ioannis Spyropoulos ,  Meetul Parikh

    IPC: H04N7/20 ,  H04N21/647

    CPC classification number: H04N21/64738 ,  H04N21/438 ,  H04N21/44209 ,  H04N21/6143

    Abstract: A signal receiver may be configured to determine when signal generation changes affecting signals being received by the signal receiver may cause performance related changes; and to modify its (the signal receiver) configuration to handle the performance related changes. In this regard, the modifying of configuration may comprise determining characteristics of performance related changes, and controlling operations of the signal receiver based on the determined characteristics of the performance related changes. The performance related changes may comprise amplitude glitches, phase glitches, and/or bit or packet errors. The signal generation changes may comprise channel-to-frequency reassignment. Controlling operations of the signal receiver based on determined characteristics of the performance related changes may comprise adjusting such parameters as amplification gain and/or tracking loop bandwidth, and/or determining whether (or not) to ignore bit/packet errors—i.e. not reacquire (e.g., based on determination that tracking loops used in the signal receiver remain locked).

    Abstract translation: 信号接收机可以被配置为确定何时影响由信号接收器接收的信号的信号产生改变可能导致性能相关的变化; 并修改其（信号接收器）配置以处理性能相关的更改。 在这方面，配置的修改可以包括确定性能相关变化的特性，以及基于所确定的性能相关变化的特性来控制信号接收机的操作。 性能相关的变化可能包括幅度毛刺，相位毛刺和/或位或分组错误。 信号产生改变可以包括频率到频率的重新分配。 基于性能相关变化的确定特性来控制信号接收机的操作可以包括调整诸如放大增益和/或跟踪环路带宽之类的参数，和/或确定是否（或不））忽略比特/分组错误 - 即， 不重新获取（例如，基于在信号接收器中使用的跟踪环路保持锁定的确定）。

    Multi-waveform digital predistortion calibration
    22.
    发明授权
    Multi-waveform digital predistortion calibration 有权

    公开(公告)号：US11711149B2

    公开(公告)日：2023-07-25

    申请号：US16379759

    申请日：2019-04-09

    Applicant: Maxlinear, Inc.

    Inventor： Ioannis Spyropoulos ,  Anand Anandakumar

    IPC: H04B10/564

    CPC classification number: H04B10/564

    Abstract: A calibration system comprises control circuitry and waveform capture circuitry. The control circuitry selects a first calibration waveform for input to a digital predistortion circuit of a transmitter. The capture circuitry captures a first waveform output by the transmitter in response to the first calibration waveform. The control circuitry compares the first calibration waveform to the captured first waveform. The control circuitry selects a first one of a plurality of mapping circuit configurations based on the result of the comparison, wherein the mapping circuit is configured to map outputs of a plurality of delay circuits among inputs of a plurality of filter taps. The control circuitry stores the one of the mapping circuit configurations in nonvolatile memory associated with the transmitter.

    Non-Coherent Multi-Symbol-Delay Differential Detector
    24.
    发明申请
    Non-Coherent Multi-Symbol-Delay Differential Detector 审中-公开

    公开(公告)号：US20190020513A1

    公开(公告)日：2019-01-17

    申请号：US16136322

    申请日：2018-09-20

    Applicant: Maxlinear, Inc.

    Inventor： Ioannis Spyropoulos ,  Anand Anandakumar

    IPC: H04L25/03 ,  H04B1/16

    CPC classification number: H04L25/03184 ,  H04B1/16

    Abstract: An electronic receiver may generate a differential detection sequence based on a received symbol sequence and based on a m-symbol delayed version of the received symbol sequence, where in is an integer greater than 1. The particular differential detection sequence may be a result of an element-by-element multiplication of the particular received symbol sequence and the conjugate of an in-symbol delayed version of the particular received symbol sequence. The receiver may calculate differential decision metrics based on the differential detection sequence and based on a set of differential symbol sequences generated from the set of possible transmitted symbol sequences. The receiver may generate a decision as to which of a set of possible transmitted symbol sequences resulted in the received symbol sequence, where the decision is based on the differential decision metrics and the set of possible transmitted symbols sequences.

    Method and system for adaptive guard interval (GI) combining
    26.
    发明授权
    Method and system for adaptive guard interval (GI) combining 有权

    公开(公告)号：US10063399B2

    公开(公告)日：2018-08-28

    申请号：US14687234

    申请日：2015-04-15

    Applicant: MaxLinear, Inc.

    Inventor： Mingrui Zhu ,  Arun Kedambadi ,  Seung Chul Hong ,  Anand Anandakumar

    IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04L25/02

    Abstract: Methods and systems are provided for adaptive guard interval (GI) combining. When a signal carrying at least one symbol that is preceded by a guard interval that comprises a portion of the symbol is received, a portion of the guard interval that is free from inter-symbol interference (ISI) may be determined, and only a part of the ISI-free portion of the guard interval may be extracted. The part of the ISI-free portion of the guard interval may be selected based on timing adjustment, relative to start of the symbol, that is applied to a function used in extracting the symbol. The extracted part of the ISI-free portion of the guard interval may then be combined with a corresponding portion of the symbol. The extracting and/or combining may be performed after a determination that a delay spread is smaller than a predetermined channel delay.

    Method and System for Multi-Path Video and Network Channels
    28.
    发明申请
    Method and System for Multi-Path Video and Network Channels 审中-公开

    公开(公告)号：US20170150202A1

    公开(公告)日：2017-05-25

    申请号：US15426382

    申请日：2017-02-07

    Applicant: Maxlinear, Inc.

    Inventor： Anand Anandakumar ,  Sheng Ye ,  Curtis Ling

    IPC: H04N21/426 ,  H04N21/61 ,  H04N21/438 ,  H04N21/443

    CPC classification number: H04N21/4263 ,  H04N5/44 ,  H04N5/50 ,  H04N21/4383 ,  H04N21/4436 ,  H04N21/4622 ,  H04N21/6143

    Abstract: Methods and systems for multi-path video and network channels may comprise a communication device comprising a wideband tuner (WB) and a narrowband tuner (NB). A video channel and a network channel may be received in the WB when the device is operating in a first stage. A video channel and a network channel may be received in the WB and the network channel may also be received in the NB when the device is operating in a second stage. The network channel may be received in the NB when the device is operating in a third stage. The reception of the network channel from both the WB and NB may enable a continuous reception of the network channel in a transition between the first and third stages. The WB may be operable to receive a plurality of channels and the NB may be operable to receive a single channel.

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