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    SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER
    161.
    发明申请
    SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER 有权

    公开(公告)号：US20160329908A1

    公开(公告)日：2016-11-10

    申请号：US15149827

    申请日：2016-05-09

    Applicant: MaxLinear, Inc.

    Inventor： Kaveh Moazzami ,  Pawan Tiwari ,  Gaurav Chandra

    IPC: H03M1/12 ,  H03M1/46

    CPC classification number: H03M1/1245 ,  H03M1/0836 ,  H03M1/12 ,  H03M1/46 ,  H03M1/468

    Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.

    DIGITAL-TO-ANALOG CONVERTER (DAC) WITH ENHANCED DYNAMIC ELEMENT MATCHING (DEM) AND CALIBRATION
    162.
    发明申请
    DIGITAL-TO-ANALOG CONVERTER (DAC) WITH ENHANCED DYNAMIC ELEMENT MATCHING (DEM) AND CALIBRATION 有权
    具有增强动态元件匹配（DEM）和校准的数字到模拟转换器（DAC）

    公开(公告)号：US20160308545A1

    公开(公告)日：2016-10-20

    申请号：US15130617

    申请日：2016-04-15

    Applicant: MaxLinear, Inc.

    Inventor： Gaurav Chandra ,  Tao Zeng ,  Shantha Murthy Prem Swaroop

    IPC: H03M1/06 ,  H03M1/68 ,  H03M1/10

    CPC classification number: H03M1/066 ,  H03M1/1038 ,  H03M1/66

    Abstract: Systems and methods are provided for digital-to-analog converters (DACs) with enhanced dynamic element matching (DEM) and calibration. DEM may be adapted based on assessment of one or more conditions that may affect the DACs or DEM functions thereof. The one or more condition may comprise amount of signal backoff. The adaption may comprise switching the DEM function (as a whole, or partially—e.g., individual DEM elements) on or off based on the assess conditions. The DACs may incorporate use of calibration. The DEM and/or the calibration may be applied to only a portion of the DAC, such as a particular segment (e.g., a middle segment comprising bits between the MSBs and the LSBs).

    Abstract translation: 为具有增强的动态元素匹配（DEM）和校准的数模转换器（DAC）提供了系统和方法。 可以基于可能影响DAC或其DEM功能的一个或多个条件的评估来调整DEM。 一个或多个条件可以包括信号回退量。 适应可以包括基于评估条件来打开或关闭DEM功能（整体上，或部分地，例如，单独的DEM元件）。 DAC可以使用校准。 DEM和/或校准可以仅应用于DAC的一部分，例如特定段（例如，包括MSB和LSB之间的位的中间段）。

    Feedback-based configuration of a hybrid fiber-coaxial network
    163.
    发明授权
    Feedback-based configuration of a hybrid fiber-coaxial network 有权
    混合光纤同轴网络的基于反馈的配置

    公开(公告)号：US09461742B2

    公开(公告)日：2016-10-04

    申请号：US14157146

    申请日：2014-01-16

    Applicant: MaxLinear, Inc.

    Inventor： Curtis Ling

    IPC: H04B10/00 ,  H04B10/08 ,  H04B10/25 ,  H04B10/2575 ,  H04B10/079 ,  H04L12/24 ,  H04J14/02

    CPC classification number: H04B10/25 ,  G02B6/26 ,  G02B6/28 ,  H04B10/00 ,  H04B10/0793 ,  H04B10/0795 ,  H04B10/25751 ,  H04B10/503 ,  H04J14/00 ,  H04J14/02 ,  H04L12/66 ,  H04L41/06

    Abstract: Circuitry of a fiber node which is configured to couple to an optical link and an electrical link may comprise an electrical-to-optical conversion circuit for transmitting on the optical link. The circuitry may be operable to receive signals via the optical link. The circuitry may select between or among different configurations of the electrical-to-optical conversion circuit based on the signals received via the optical link. The signals received via the optical link may be intended for one or more gateways served by the fiber node or may be dedicated signals intended for configuration of the circuitry. The circuitry may be operable to generate feedback and insert the feedback into a datastream received from one or more gateways via the electrical link prior to transmitting the datastream onto the optical link.

    Abstract translation: 被配置为耦合到光链路和电连接的光纤节点的电路可以包括用于在光链路上传输的电 - 光转换电路。 电路可以用于经由光链路接收信号。 电路可以基于经由光链路接收的信号在电 - 光转换电路的不同配置之间或之间进行选择。 通过光链路接收的信号可以用于由光纤节点服务的一个或多个网关，或者可以是用于配置电路的专用信号。 在将数据流发送到光链路之前，该电路可以可操作以产生反馈并将反馈插入到经由电连接从一个或多个网关接收的数据流。

    Precise temperature and timebase ppm error estimation using multiple timebases
    164.
    发明授权
    Precise temperature and timebase ppm error estimation using multiple timebases 有权
    使用多个时基的精确温度和时基ppm误差估计

    公开(公告)号：US09456431B2

    公开(公告)日：2016-09-27

    申请号：US14319769

    申请日：2014-06-30

    Applicant: Maxlinear, Inc.

    Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

    IPC: G06F1/12 ,  H04W56/00 ,  G01S19/23 ,  H03L1/02

    CPC classification number: H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

    Abstract: Methods and systems for precise temperature and timebase PPM error estimation using multiple timebases may comprise in an electronic device comprising a plurality of timebases and measuring a temperature corresponding to the timebases. Frequencies of the timebases at the measured temperature may be compared to determine differential error functions for the timebases. A fine reading of the temperature corresponding to the timebases may be generated based, at least in part, on the measured temperature and the determined differential error functions for the timebases. The timebases may be calibrated utilizing the generated fine reading of the temperature. The timebases may comprise different order temperature dependencies. Models of temperature dependencies of each of the timebases based may be updated, at least in part, on the fine reading of the temperature. A global navigation satellite system (GNSS) clock signal may be periodically utilized to improve the accuracy of the calibration of the timebases.

    Abstract translation: 用于精确温度和时基的方法和系统使用多个时基的PPM误差估计可以包括在包括多个时基并且测量对应于时基的温度的电子设备中。 可以比较测量温度下时基的频率，以确定时基的差分误差函数。 至少部分地基于所测量的温度和确定的时间基差分误差函数来生成对应于时间基的温度的精细读数。 可以利用生成的温度读数来校准时基。 时间基可以包括不同的顺序温度依赖性。 每个基于时间基的温度依赖性的模型可以至少部分地基于对温度的精细读取来更新。 周期性地使用全球导航卫星系统（GNSS）时钟信号来提高时基的校准精度。

    Non-Coherent Multi-Symbol-Delay Differential Detector
    168.
    发明申请
    Non-Coherent Multi-Symbol-Delay Differential Detector 有权

    公开(公告)号：US20160241423A1

    公开(公告)日：2016-08-18

    申请号：US15006327

    申请日：2016-01-26

    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 m 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 m-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.

    Impulse noise mitigation under out-of-band interference conditions
    170.
    发明授权
    Impulse noise mitigation under out-of-band interference conditions 有权

    公开(公告)号：US09419661B2

    公开(公告)日：2016-08-16

    申请号：US14886204

    申请日：2015-10-19

    Applicant: MaxLinear, Inc.

    Inventor： Andy Lo ,  Sugbong Kang

    IPC: H03H7/30 ,  H03K5/01 ,  H04B1/10

    CPC classification number: H04B1/1036 ,  H04B1/10

    Abstract: An impulse noise mitigation circuit (INMC) may set a cut-off frequency of each of two high pass filters to bound a frequency bandwidth of a desired signal, wherein a first of the two filters allows frequencies higher than the frequency bandwidth of the desired signal, and a second of the two filters allows frequencies lower than the frequency bandwidth of the desired signal. The INMC may compute and store a mean magnitude separately for a first signal response of the first filter and a second signal response of the second filter. The INMC may select the first filter for impulse noise mitigation when the mean magnitude of the second filter is greater than the mean magnitude of the first filter. The INMC may select the second filter for impulse noise mitigation when the mean magnitude of the first filter is greater than the second filter.

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