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    Systems and methods for implementing bi-directional synchronization propagation
    1.
    发明授权
    Systems and methods for implementing bi-directional synchronization propagation 有权

    公开(公告)号：US09735905B2

    公开(公告)日：2017-08-15

    申请号：US13716463

    申请日：2012-12-17

    Applicant: BROADCOM CORPORATION

    Inventor： Peiqing Wang ,  Linghsiao Wang ,  Mehmet Vakif Tazebay

    IPC: H04J3/06

    CPC classification number: H04J3/0697 ,  H04J3/0658

    Abstract: Systems and methods for implementing bi-directional synchronization propagation between first and second communication devices are provided. The devices are arranged in a loop-timing configuration. A method includes detecting, by the second communication device, a switching signal comprising an indication to switch a timing role of the second communication device and engaging, by the second communication device, in a synchronization handshake with the first communication device over a communication link based on the detection of the switching signal. Engaging in the synchronization handshake includes determining whether the first communication device is configured to support bi-directional synchronization propagation. The method includes switching the timing role of the second communication device based on the synchronization handshake.

    Method and system for a combined signal detection for physical layer communication devices
    3.
    发明授权
    Method and system for a combined signal detection for physical layer communication devices 有权
    用于物理层通信设备的组合信号检测的方法和系统

    公开(公告)号：US09225370B2

    公开(公告)日：2015-12-29

    申请号：US14645704

    申请日：2015-03-12

    Applicant: Broadcom Corporation

    Inventor： Mehmet Tazebay ,  Scott Powell ,  Peiqing Wang ,  Bruce Conway ,  Sang Bui

    IPC: H04B1/12 ,  H04B1/7097 ,  H04B3/23 ,  H04B3/32

    CPC classification number: H04B1/12 ,  H04B1/7097 ,  H04B3/23 ,  H04B3/32

    Abstract: Communication devices coupled via a communication link may comprise physical layer devices that may be operable to determine presence of a received signal and to mitigate noise in the signal prior to processing and/or validating the signal. Analog and/or digital signal processing may be utilized to process the signal and/or mitigate noise in the signal. Noise mitigation may comprise near-end crosstalk cancelling and/or echo cancelling and/or may utilize local transmit signal information. Subsequent to noise mitigation, samples of the noise reduced signal may be accumulated and/or an average signal strength and/or average signal power level may be determined. The average signal strength and/or average signal power level may be compared to one or more thresholds which may be configurable and/or programmable.

    Abstract translation: 经由通信链路耦合的通信设备可以包括物理层设备，其可以在处理和/或验证信号之前确定接收信号的存在并减轻信号中的噪声。 可以使用模拟和/或数字信号处理来处理信号和/或减轻信号中的噪声。 噪声减轻可以包括近端串扰消除和/或回波消除和/或可以利用本地发射信号信息。 在噪声减轻之后，可以累积噪声降低信号的样本和/或可以确定平均信号强度和/或平均信号功率电平。 平均信号强度和/或平均信号功率电平可以与可配置和/或可编程的一个或多个阈值进行比较。

    Synchronization and training stage operation
    4.
    发明授权
    Synchronization and training stage operation 有权

    公开(公告)号：US10027471B2

    公开(公告)日：2018-07-17

    申请号：US14795840

    申请日：2015-07-09

    Applicant: BROADCOM CORPORATION

    Inventor： Chung Ming Tu ,  Peiqing Wang ,  Ahmad Chini ,  Yencheng Chen ,  Mehmet Vakif Tazebay ,  Bazhong Shen

    IPC: H04L7/10 ,  H04L12/413 ,  H04L7/04

    Abstract: A primary device implementing the subject system of link establishment for single pair Ethernet may include at least one processor circuit. The at least one processor circuit may be configured to transmit a first synchronization sequence to a secondary device and to subsequently detect a second synchronization sequence, different than the first, transmitted by the secondary device. The synchronization sequences may be pseudo-noise sequences that have strong autocorrelation characteristics. The at least one processor circuit may be configured to wait a predetermined amount of time after completing the detection of the second synchronization sequence, and then may initiate a training stage. The training stage may include exchanging scrambler states of additive scramblers used by the primary and secondary devices. The at least one processor circuit may be configured to enter a data mode upon completion of training. In the data mode, data is forward error correction encoded and then scrambled.

    Reduced pair Ethernet transmission system
    5.
    发明授权
    Reduced pair Ethernet transmission system 有权
    减速对以太网传输系统

    公开(公告)号：US08873659B2

    公开(公告)日：2014-10-28

    申请号：US13656555

    申请日：2012-10-19

    Applicant: Broadcom Corporation

    Inventor： Peiqing Wang ,  Linghsiao Wang

    IPC: H04L5/12

    CPC classification number: H04L25/14

    Abstract: A system for reduced pair Ethernet transmission. The system includes an interleaver that is operable to receive sets of four code symbols from a physical channel sub-layer (PCS) encoder, wherein each code symbol of each set of four code symbols is associated with one of four channels, and interleave the sets of four code symbols to generate a plurality of interleaved code symbols. The system further includes a serializer that is operable to serialize the plurality of interleaved code symbols to generate a plurality of interleaved and serialized code symbols. The system further includes a transmitter that is operable to transmit the plurality of interleaved and serialized code symbols over an Ethernet medium comprising a single twisted pair of wires.

    Abstract translation: 一种减少对以太网传输的系统。 该系统包括交织器，其可操作以从物理信道子层（PCS）编码器接收四组代码符号组，其中每组四个码元的每个码元与四个信道之一相关联， 以产生多个交织的码符号。 该系统还包括串行化器，其可操作以串行化多个交错码符号以生成多个交错和串行化代码符号。 该系统还包括发射机，其可操作以通过包括单根双绞线的以太网介质传输多个交错和串行码元。

    REDUCED PAIR ETHERNET TRANSMISSION SYSTEM
    6.
    发明申请
    REDUCED PAIR ETHERNET TRANSMISSION SYSTEM 有权
    减少配对以太网传输系统

    公开(公告)号：US20140112376A1

    公开(公告)日：2014-04-24

    申请号：US13656555

    申请日：2012-10-19

    Applicant: BROADCOM CORPORATION

    Inventor： Peiqing Wang ,  Linghsiao Wang

    IPC: H04B1/38

    CPC classification number: H04L25/14

    Abstract: A system for reduced pair Ethernet transmission. The system includes an interleaver that is operable to receive sets of four code symbols from a physical channel sub-layer (PCS) encoder, wherein each code symbol of each set of four code symbols is associated with one of four channels, and interleave the sets of four code symbols to generate a plurality of interleaved code symbols. The system further includes a serializer that is operable to serialize the plurality of interleaved code symbols to generate a plurality of interleaved and serialized code symbols. The system further includes a transmitter that is operable to transmit the plurality of interleaved and serialized code symbols over an Ethernet medium comprising a single twisted pair of wires.

    Abstract translation: 一种减少对以太网传输的系统。 该系统包括交织器，其可操作以从物理信道子层（PCS）编码器接收四组代码符号组，其中每组四个码元的每个码元与四个信道之一相关联， 以产生多个交织的码符号。 该系统还包括串行化器，其可操作以串行化多个交错码符号以生成多个交错和串行化代码符号。 该系统还包括发射机，其可操作以通过包括单根双绞线的以太网介质传输多个交织和串行码元。

    METHOD AND SYSTEM FOR UNCONSTRAINED FREQUENCY DOMAIN ADAPTIVE FILTERING
    7.
    发明申请
    METHOD AND SYSTEM FOR UNCONSTRAINED FREQUENCY DOMAIN ADAPTIVE FILTERING 有权
    用于不受约束的频域自适应滤波的方法和系统

    公开(公告)号：US20140079101A1

    公开(公告)日：2014-03-20

    申请号：US14087223

    申请日：2013-11-22

    Applicant: Broadcom Corporation

    Inventor： Kuoruey (Ray) Han ,  Peiqing Wang ,  Linghsiao Wang ,  Kishore Kota ,  Arash Farhoodfar

    IPC: H04B1/12

    CPC classification number: H04B1/123 ,  H03H21/0027

    Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.

    Abstract translation: 用于无约束频域自适应滤波的方法和系统的方面包括可操作以选择当前滤波器分区中的一个或多个时域系数的一个或多个电路。 可以基于对应的多个频域系数来计算所选择的一个或多个时域系数中的每一个的值。 可以基于所计算的值来调整相应的多个频域系数。 可以基于所计算的值来调整后续滤波器分区中的后续多个频域系数。 可以基于经调整的相应多个频域系数在当前滤波器分区中处理输入信号。 输入信号的时间调整版本可以在随后的滤波器分区中基于经调整的后续多个频域系数来处理。

    Systems and methods for implementing energy-efficient ethernet communications
    8.
    发明授权
    Systems and methods for implementing energy-efficient ethernet communications 有权

    公开(公告)号：US10211881B2

    公开(公告)日：2019-02-19

    申请号：US13963962

    申请日：2013-08-09

    Applicant: BROADCOM CORPORATION

    Inventor： Peiqing Wang ,  Linghsiao Wang ,  Mehmet Vakif Tazebay

    IPC: H04B3/32 ,  H04L12/12

    Abstract: Systems and methods for implementing an Energy-Efficient Ethernet (EEE) communication are provided. In some aspects, a method includes identifying an EEE signal configured to be communicated via a first set of wires. The method also includes processing the EEE signal such that the processed EEE signal is configured to be communicated via a second set of wires. The second set of wires including fewer wires than the first set of wires. The method also includes communicating the processed EEE signal via the second set of wires.

    Method and system for unconstrained frequency domain adaptive filtering
    10.
    发明授权
    Method and system for unconstrained frequency domain adaptive filtering 有权
    无约束频域自适应滤波的方法和系统

    公开(公告)号：US08984038B2

    公开(公告)日：2015-03-17

    申请号：US14087223

    申请日：2013-11-22

    Applicant: Broadcom Corporation

    Inventor： Kuoruey (Ray) Han ,  Peiqing Wang ,  Linghsiao Wang ,  Kishore Kota ,  Arash Farhoodfar

    IPC: G06F17/10 ,  G06F17/14 ,  H04B3/46 ,  H03H7/30 ,  H04B1/12 ,  H03H21/00

    CPC classification number: H04B1/123 ,  H03H21/0027

    Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.

    Abstract translation: 用于无约束频域自适应滤波的方法和系统的方面包括可操作以选择当前滤波器分区中的一个或多个时域系数的一个或多个电路。 可以基于对应的多个频域系数来计算所选择的一个或多个时域系数中的每一个的值。 可以基于所计算的值来调整相应的多个频域系数。 可以基于所计算的值来调整后续滤波器分区中的后续多个频域系数。 可以基于经调整的相应多个频域系数在当前滤波器分区中处理输入信号。 输入信号的时间调整版本可以在随后的滤波器分区中基于经调整的后续多个频域系数来处理。

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