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    ADC architecture for wireless applications
    1.
    发明授权
    ADC architecture for wireless applications 有权
    用于无线应用的ADC架构

    公开(公告)号：US08031810B1

    公开(公告)日：2011-10-04

    申请号：US12945035

    申请日：2010-11-12

    申请人： Yungping Hsu ,  Mao Yu

    发明人： Yungping Hsu ,  Mao Yu

    IPC分类号： H03K9/00 ,  H03M1/00

    CPC分类号： H03M1/1225 ,  H04L27/38

    摘要： An architecture for use in wireless receiver applications, particularly for ADC conversion of received in-phase I and quadrature Q signals. A single ADC is shared to convert both signals, and the ADC input is alternately switched between the i and q signals. In an embodiment, the ADC is clocked at an increased sample rate, and the digital output signals are aligned to compensate for the phase difference resulting from the implementation of the single ADC.

    摘要翻译： 一种用于无线接收机应用的架构，特别是用于接收同相I和正交Q信号的ADC转换。 共享一个ADC以转换两个信号，并且ADC输入在i和q信号之间交替切换。 在一个实施例中，ADC以提高的采样率被计时，并且数字输出信号被对准以补偿由单个ADC的实现引起的相位差。

    ADC architecture for wireless applications
    2.
    发明授权
    ADC architecture for wireless applications 有权
    用于无线应用的ADC架构

    公开(公告)号：US07388931B1

    公开(公告)日：2008-06-17

    申请号：US10170306

    申请日：2002-06-12

    申请人： Yungping Hsu ,  Mao Yu

    发明人： Yungping Hsu ,  Mao Yu

    IPC分类号： H04L27/00 ,  H04L27/06 ,  H04L7/00 ,  H04B7/12

    CPC分类号： H03M1/1225 ,  H04L27/38

    摘要： A simplified architecture is disclosed for ADC conversion of received in-phase I and quadrature Q signals. Circuit area is substantially reduced by sharing a single ADC to convert both signals, switching the ADC input alternately between the i and q signals. In an embodiment, the ADC is clocked at an increased sample rate, and the digital output signals are aligned to compensate for the phase difference resulting from the implementation of a single ADC. Aligning includes delaying one of the digital signals, and interpolating the other one of the digital signals in a low pass filter so as to compensate for the phase difference introduced by the sampling during the first and second time intervals. The first and second time intervals are equal to a predetermined ADC sample period corresponding to a sample clock cycle. Delaying the first digital signal includes a delay of 1/2 clock cycle.

    摘要翻译： 公开了用于接收的同相I和正交Q信号的ADC转换的简化架构。 通过共享单个ADC来转换两个信号，交替地在i和q信号之间切换ADC输入，从而大大减少了电路面积。 在一个实施例中，ADC以提高的采样率被计时，并且数字输出信号被对准以补偿由单个ADC的实现引起的相位差。 对准包括延迟数字信号中的一个，并且在低通滤波器中内插另一个数字信号，以补偿在第一和第二时间间隔期间由采样引入的相位差。 第一和第二时间间隔等于对应于采样时钟周期的预定ADC采样周期。 延迟第一个数字信号包括1/2时钟周期的延迟。

    Digitally-assisted power reduction technique for IQ pipeline ADCs used in wireless receivers
    5.
    发明授权
    Digitally-assisted power reduction technique for IQ pipeline ADCs used in wireless receivers 有权
    用于无线接收器的IQ流水线ADC的数字辅助功率降低技术

    公开(公告)号：US07822160B1

    公开(公告)日：2010-10-26

    申请号：US11504523

    申请日：2006-08-15

    申请人： Thomas Cho ,  Yungping Hsu

    发明人： Thomas Cho ,  Yungping Hsu

    IPC分类号： H04L7/00

    CPC分类号： H03M1/1225 ,  H03M1/164 ,  H03M1/44

    摘要： A device comprises a first circuit that generates a first phase component and a second phase component. A pipelined analog to digital converter comprises N stages, wherein N is an integer greater than one. At least one of the N stages includes a sample and integrate circuit that selectively samples the first phase component and integrates a sampled second phase component to generate an integrated second phase component during one portion of a first clock phase of the sample and integrate circuit, and that selectively integrates the sampled first phase component to generate an integrated first phase component and samples the second phase component to generate the sampled second phase component during another portion of the first clock phase of the sample and integrate circuit.

    摘要翻译： 一种设备包括产生第一相位分量和第二相位分量的第一电路。 流水线模数转换器包括N级，其中N是大于1的整数。 N级中的至少一个包括采样和积分电路，其选择性地采样第一相位分量并且对样本和积分电路的第一时钟相位的一部分期间积分采样的第二相位分量以产生积分的第二相位分量，以及 选择性地将采样的第一相位分量积分以产生积分的第一相位分量，并且在采样和积分电路的第一时钟相位的另一部分期间采样第二相位分量以产生采样的第二相位分量。

    RADAR DETECTION AND DYNAMIC FREQUENCY SELECTION
    6.
    发明申请
    RADAR DETECTION AND DYNAMIC FREQUENCY SELECTION 审中-公开
    雷达检测和动态频率选择

    公开(公告)号：US20100202359A1

    公开(公告)日：2010-08-12

    申请号：US12761937

    申请日：2010-04-16

    申请人： Bhaskar V. Nallapureddy ,  Tsunglun Yu ,  Yungping Hsu ,  Sek Kin Neng

    发明人： Bhaskar V. Nallapureddy ,  Tsunglun Yu ,  Yungping Hsu ,  Sek Kin Neng

    IPC分类号： H04W40/00

    CPC分类号： G01S7/021 ,  G01S7/023

    摘要： A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.

    摘要翻译： 无线网络设备包括相关模块，自动增益控制模块和控制模块。 相关模块将射频（RF）信号的预定部分相关，并基于此产生相关信号。 自动增益控制（AGC）模块基于所述RF信号产生增益控制信号。 所述控制模块基于所述相关信号和所述增益控制信号选择性地确定所述RF信号是否为雷达信号。

    Decoding method and apparatus
    7.
    发明授权
    Decoding method and apparatus 有权
    解码方法和装置

    公开(公告)号：US07746925B1

    公开(公告)日：2010-06-29

    申请号：US11528037

    申请日：2006-09-27

    申请人： Yungping Hsu ,  Nelson Xu ,  Ricky Cheung

    发明人： Yungping Hsu ,  Nelson Xu ,  Ricky Cheung

    IPC分类号： H03H7/30 ,  H03K5/159

    CPC分类号： H04L25/03057 ,  H04L2025/03401 ,  H04L2025/0349

    摘要： A feedback equalizer includes a summing unit having an output and first input for receiving a modulated signal, which includes a symbol defined by a first number of chips. A subsymbol processor is coupled to the output of the summing unit. The symbol processor is capable of generating a subsymbol waveform upon receipt of a second number of chips of the symbol. The second number is less than the first number. A feedback filter is coupled to a second input of the summing unit and the symbol processing unit to selectively filter the subsymbol waveform from the modulated signal.

    摘要翻译： 反馈均衡器包括具有用于接收调制信号的输出和第一输入的求和单元，该调制信号包括由第一数量的码片定义的符号。 子符号处理器耦合到求和单元的输出。 符号处理器能够在接收到符号的第二数量的码片时产生子符号波形。 第二个数字小于第一个数字。 反馈滤波器耦合到求和单元和符号处理单元的第二输入端，以选择性地从调制信号滤波子符号波形。

    Method and apparatus for determining signal quality
    8.
    发明授权
    Method and apparatus for determining signal quality 有权
    用于确定信号质量的方法和装置

    公开(公告)号：US07701871B1

    公开(公告)日：2010-04-20

    申请号：US12011568

    申请日：2008-01-28

    申请人： Yungping Hsu ,  Ricky Cheung

    发明人： Yungping Hsu ,  Ricky Cheung

    IPC分类号： H04L12/56 ,  H04L1/16

    CPC分类号： H04W28/18

    摘要： A method comprises determining maximum and next-maximum correlation candidates for a symbol of a modulated signal, calculating a scalar relationship between the maximum and next-maximum correlation candidates, deriving signal quality associated with the modulated signal based on the scalar relationship, and altering a characteristic based on the derived signal quality.

    摘要翻译： 一种方法包括确定调制信号的符号的最大和下一最大相关候选，计算最大和下一最大相关候选之间的标量关系，基于标量关系导出与调制信号相关联的信号质量，以及改变 基于导出信号质量的特征。

    Method and apparatus for predicting CCK subsymbols
    9.
    发明授权
    Method and apparatus for predicting CCK subsymbols 有权
    用于预测CCK子符号的方法和装置

    公开(公告)号：US07602864B1

    公开(公告)日：2009-10-13

    申请号：US11714530

    申请日：2007-03-06

    申请人： Guorong Hu ,  Yungping Hsu

    发明人： Guorong Hu ,  Yungping Hsu

    IPC分类号： H03D1/00 ,  H04L27/06

    CPC分类号： H04L25/03057

    摘要： A correlator comprises a plurality of phase rotators, a plurality of combining modules, a plurality of computation modules, and a selection module. The plurality of phase rotators selectively modifies phase for each chip of a first subset of chips by one of M phase offsets, where an incoming symbol comprises the first subset and a second subset of chips, and where M is an integer greater than one. The plurality of combining modules each combine a chip of the first subset with a respective chip of the second subset to generate an output. The plurality of computation modules includes inputs that communicate with the outputs of the plurality of combining modules and produces a plurality of correlator output signals. The selection module chooses one of the plurality of correlator output signals based upon a metric.

    摘要翻译： 相关器包括多个相位旋转器，多个组合模块，多个计算模块以及选择模块。 多个相位旋转器通过M个相位偏移中的一个选择性地修改第一芯片子集的每个芯片的相位，其中输入符号包括第一子集和第二子集子集，并且其中M是大于1的整数。 多个组合模块各自将第一子集的芯片与第二子集的相应芯片组合以产生输出。 多个计算模块包括与多个组合模块的输出通信并产生多个相关器输出信号的输入。 选择模块基于度量来选择多个相关器输出信号中的一个。

    Apparatus for antenna diversity for wireless communication and method thereof
    10.
    发明授权
    Apparatus for antenna diversity for wireless communication and method thereof 有权
    无线通信用天线分集装置及其方法

    公开(公告)号：US07099380B1

    公开(公告)日：2006-08-29

    申请号：US09991473

    申请日：2001-11-16

    申请人： Weishi Feng ,  Hsiao Tang ,  Guorong Hu ,  Yungping Hsu

    发明人： Weishi Feng ,  Hsiao Tang ,  Guorong Hu ,  Yungping Hsu

    IPC分类号： H04B1/69

    CPC分类号： H04B7/0814 ,  H04B1/707 ,  H04B7/0808

    摘要： A method and an apparatus for selecting an antenna from an antenna diversity array in a wireless communication system are provided. The method includes the steps of modulating an incoming signal with a spread-spectrum type modulation, measuring a signal quality value for each antenna in the antenna diversity array, and selecting an antenna from the antenna diversity array on the basis of the measured signal quality values. The step of measuring a signal quality value for each antenna may include computing peak-to-average ratio values by dividing a peak sample value by an average sample value, where the average sample value is determined by averaging all of the predetermined number of sample values for each of the plurality of incoming spreading codewords, and the peak sample value is determined by selecting the maximum of all of the predetermined number of sample values for each of the plurality of incoming spreading codewords.

    摘要翻译： 提供了一种从无线通信系统中的天线分集阵列中选择天线的方法和装置。 该方法包括以扩展频谱类型调制来调制输入信号的步骤，测量天线分集阵列中的每个天线的信号质量值，并且基于所测量的信号质量值从天线分集阵列中选择天线 。 测量每个天线的信号质量值的步骤可以包括通过将峰值采样值除以平均采样值来计算峰值平均比值，其中通过平均所有预定数量的采样值来确定平均采样值 对于多个输入扩展码字中的每一个，并且通过为多个输入扩展码字中的每一个选择所有预定数量的采样值的最大值来确定峰值采样值。