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    Blinder equalizer for QAM receivers
    1.
    发明授权
    Blinder equalizer for QAM receivers 有权
    Blinder均衡器用于QAM接收机

    公开(公告)号：US07693215B2

    公开(公告)日：2010-04-06

    申请号：US11367026

    申请日：2006-03-01

    Applicant: Xiaopeng Chen

    Inventor： Xiaopeng Chen

    IPC: H03H7/40 ,  H04L25/08

    CPC classification number: H04L27/3845 ,  H04L25/03057 ,  H04L2025/0342 ,  H04L2025/03617

    Abstract: Methods and apparatuses for blind equalizers with multiple constant modules. In one embodiment, a circuit, includes: a filter to produce an output based on an input that represents a symbol being received, the symbol being one of a Quadrature Amplitude Modulation (QAM) constellation; a decision engine coupled to the filter to generate a result indicating one region of a plurality of regions in a QAM constellation diagram, the output of the filter being in the indicated region which includes a plurality of symbols of different radii in the constellation diagram; and an error reduction engine coupled to the decision engine and the filter to reduce a difference between a selected one of a plurality of constants and a modulus of the output; where each of the plurality of constants correspond to one of the plurality of regions; and the selected one of the plurality of constants is selected according to the result of the decision engine.

    Abstract translation: 具有多个恒定模块的盲均衡器的方法和装置。 在一个实施例中，电路包括：滤波器，用于基于表示正被接收的符号的输入产生输出，该符号是正交幅度调制（QAM）星座中的一个; 耦合到所述滤波器以产生指示QAM星座图中的多个区域的一个区域的结果的判定引擎，所述滤波器的输出在所述指示区域中，所述指示区域包括星座图中的不同半径的多个符号; 以及错误减少引擎，其耦合到所述决策引擎和所述过滤器，以减少所述多个常数中的所选择的一个和所述输出的模数之间的差; 其中所述多个常数中的每一个对应于所述多个区域中的一个; 并且根据判定引擎的结果选择多个常数中的所选择的一个。

    Nonlinear echo compensator for class B transmitter line driver
    2.
    发明申请
    Nonlinear echo compensator for class B transmitter line driver 失效
    B类发射机线路驱动器的非线性回波补偿器

    公开(公告)号：US20080267327A1

    公开(公告)日：2008-10-30

    申请号：US12215222

    申请日：2008-06-26

    Applicant: Xiaopeng Chen ,  Runsheng He ,  Shuran Wei

    Inventor： Xiaopeng Chen ,  Runsheng He ,  Shuran Wei

    IPC: H03D1/04

    CPC classification number: H04B3/32 ,  H04B3/231

    Abstract: A nonlinear echo compensator comprises a mapping circuit that includes a weighting circuit that generates a weighted signal based on a current symbol and a prior symbol and a function generating circuit that selects one of N functions based on the weighted signal, where N is an integer greater than one. The mapping circuit generates a driving signal based on the selected one of the N functions and the weighted signal. A canceling circuit generates a nonlinear echo compensation signal based on the driving signal.

    Abstract translation: 非线性回波补偿器包括映射电路，该映射电路包括基于当前符号和先前符号产生加权信号的加权电路，以及基于加权信号选择N个函数之一的函数产生电路，其中N是更大的整数 比一个。 映射电路根据N个功能和加权信号中选择的一个产生驱动信号。 消除电路基于驱动信号产生非线性回波补偿信号。

    Method for iterative and non-iterative data detection using reduced-state soft-input/soft-output algorithms for complexity reduction
    3.
    发明授权
    Method for iterative and non-iterative data detection using reduced-state soft-input/soft-output algorithms for complexity reduction 有权

    公开(公告)号：US07096412B2

    公开(公告)日：2006-08-22

    申请号：US09882283

    申请日：2001-06-14

    Applicant: Xiaopeng Chen ,  Keith M. Chugg

    Inventor： Xiaopeng Chen ,  Keith M. Chugg

    IPC: H03M13/03

    CPC classification number: H03M13/3746 ,  H03M13/256 ,  H03M13/2703 ,  H03M13/2957 ,  H03M13/3905 ,  H03M13/3955 ,  H03M13/6331

    Abstract: In a digital information processing system wherein a model of a finite state machine (FSM) receiving a plurality of FSM inputs and producing a plurality of FSM outputs is represented by a reduced-state trellis and wherein the FSM inputs are defined on a base closed set of symbols, a novel method is presented for updating soft decision information on the FSM inputs into higher confidence information whereby (1) the soft decision information is inputted in a first index set, (2) a forward recursion is processed on the input soft decision information based on the reduced-state trellis representation to produce forward state metrics, (3) a backward recursion is processed on the input soft decision information based on the reduced-state trellis representation to produce backward state metrics, wherein the backward recursion is independent of the forward recursion and (4) the forward state metrics and the backward state metrics are operated on to produce the higher confidence information.

    Nonlinear echo compensator for class B transmitter line driver
    4.
    发明授权
    Nonlinear echo compensator for class B transmitter line driver 失效
    B类发射机线路驱动器的非线性回波补偿器

    公开(公告)号：US08743939B2

    公开(公告)日：2014-06-03

    申请号：US12215222

    申请日：2008-06-26

    Applicant: Xiaopeng Chen ,  Runsheng He ,  Shuran Wei

    Inventor： Xiaopeng Chen ,  Runsheng He ,  Shuran Wei

    IPC: H03H7/30 ,  H03H7/40 ,  H03K5/159

    CPC classification number: H04B3/32 ,  H04B3/231

    Abstract: A nonlinear echo compensator comprises a mapping circuit that includes a weighting circuit that generates a weighted signal based on a current symbol and a prior symbol and a function generating circuit that selects one of N functions based on the weighted signal, where N is an integer greater than one. The mapping circuit generates a driving signal based on the selected one of the N functions and the weighted signal. A canceling circuit generates a nonlinear echo compensation signal based on the driving signal.

    Abstract translation: 非线性回波补偿器包括映射电路，该映射电路包括基于当前符号和先前符号产生加权信号的加权电路，以及基于加权信号选择N个函数之一的函数产生电路，其中N是更大的整数 比一个。 映射电路根据N个功能和加权信号中选择的一个产生驱动信号。 消除电路基于驱动信号产生非线性回波补偿信号。

    Method and apparatus for reducing an interference signal in a communication system
    5.
    发明授权
    Method and apparatus for reducing an interference signal in a communication system 有权
    用于减少通信系统中的干扰信号的方法和装置

    公开(公告)号：US08270394B1

    公开(公告)日：2012-09-18

    申请号：US12345440

    申请日：2008-12-29

    Applicant: Xiaopeng Chen ,  Runsheng He

    Inventor： Xiaopeng Chen ,  Runsheng He

    IPC: H04B1/06

    CPC classification number: H04B3/32 ,  H04B3/23

    Abstract: Methods and apparatus describe techniques for reducing interference signals in a communication signal. An apparatus includes, in at least one aspect, a transceiver circuit to receive a communication signal that includes one or more interference signals and a compensation circuit to generate a compensation signal to compensate for the one or more interference signals in the communication signal based on one or more cancellation coefficients and one or more data symbols.

    Abstract translation: 方法和装置描述了用于减少通信信号中的干扰信号的技术。 一种装置在至少一个方面包括收发器电路，用于接收包括一个或多个干扰信号的通信信号和补偿电路，以产生补偿信号，以补偿通信信号中的一个或多个干扰信号 或更多的取消系数和一个或多个数据符号。

    Method and apparatus for reducing echo and crosstalk in a communication system
    8.
    发明授权
    Method and apparatus for reducing echo and crosstalk in a communication system 有权
    用于减少通信系统中回波和串扰的方法和装置

    公开(公告)号：US07471670B1

    公开(公告)日：2008-12-30

    申请号：US10762153

    申请日：2004-01-20

    Applicant: Xiaopeng Chen ,  Runsheng He

    Inventor： Xiaopeng Chen ,  Runsheng He

    IPC: H04B1/06

    CPC classification number: H04B3/32 ,  H04B3/23

    Abstract: Methods and apparatus describe techniques for reducing interference signals in a communication signal. A communication signal is received through a receiver. The communication signal contains an interference signal. A digital replica of the interference signal is generated, the digital replica is converted into a corresponding analog replica of the interference signal. The analog replica of the interference signal is subtracted from the communication signal.

    Abstract translation: 方法和装置描述了用于减少通信信号中的干扰信号的技术。 通过接收机接收通信信号。 通信信号包含干扰信号。 产生干扰信号的数字副本，将数字副本转换为相应的干扰信号的模拟副本。 从通信信号中减去干扰信号的模拟副本。

    Toy tractor
    10.
    外观设计
    Toy tractor 有权

    公开(公告)号：USD1030913S1

    公开(公告)日：2024-06-11

    申请号：US29857342

    申请日：2022-10-21

    Applicant: Xiaopeng Chen

    Designer： Xiaopeng Chen

    Abstract: FIG. 1 is a perspective view of a toy tractor showing my new design;
    FIG. 2 is a front view thereof;
    FIG. 3 is a back view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a right side view thereof;
    FIG. 6 is a top view thereof; and,
    FIG. 7 is a bottom view thereof.

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