公开(公告)号：US20100277357A1

公开(公告)日：2010-11-04

申请号：US12747666

申请日：2008-04-18

申请人： Young-Joon Ko ,  Mi-Kyung Oh ,  Joo-Ho Park ,  Jae-Young Kim ,  Kwang-Roh Park ,  Suk-Ki Kim ,  Yun-Jeong Kim

发明人： Young-Joon Ko ,  Mi-Kyung Oh ,  Joo-Ho Park ,  Jae-Young Kim ,  Kwang-Roh Park ,  Suk-Ki Kim ,  Yun-Jeong Kim

IPC分类号： H03M1/12

CPC分类号： H03M1/204 ,  H03M1/0682 ,  H03M1/365

摘要： Provided is an analog-to-digital converter. The analog-to-digital converter includes a resistor string for generating a plurality of reference voltages; a plurality of differential difference amplifiers for detecting zero-crossing points according to interpolation by using the plurality of reference voltages and input signals; and a plurality of comparators for receiving outputs of the plurality of differential difference amplifiers, detecting zero-crossing points according to 4X interpolation, and generating a digital code corresponding to the input signals.

摘要翻译： 提供了一种模拟 - 数字转换器。 模数转换器包括用于产生多个参考电压的电阻串; 多个差分差分放大器，用于根据通过使用多个参考电压和输入信号的内插来检测过零点; 以及多个比较器，用于接收多个差分差分放大器的输出，根据4×内插检测过零点，并产生与输入信号相对应的数字码。

公开(公告)号：US20100046599A1

公开(公告)日：2010-02-25

申请号：US12515998

申请日：2007-10-16

申请人： Dong-Kyoo Kim ,  Joo-Ho Park ,  Kwang-Roh Park ,  Young-Jin Kang ,  Jae-Young Kim

发明人： Dong-Kyoo Kim ,  Joo-Ho Park ,  Kwang-Roh Park ,  Young-Jin Kang ,  Jae-Young Kim

IPC分类号： H04L27/01

CPC分类号： H04L25/03159 ,  H04L25/0224 ,  H04L25/03057

摘要： Provided is an apparatus and method for acquiring an initial coefficient of a DFE using an FFT. The apparatus includes a channel impulse response estimating unit for estimating a non-causal impulse response by delaying a received signal of a time domain and transforming it into frequency domain signals; a feedforward filter coefficient acquisition unit for extracting a predetermined number of signals from the non-causal channel impulse response signals estimated by the channel impulse response estimating unit, and transforming the same into frequency domain signals to acquire an initial coefficient of a feedforward filter; and a feedback filter coefficient acquisition unit for transforming the non-causal channel impulse response signals estimated by the channel impulse response estimating unit into frequency domain signals, multiplying the same by the initial coefficient of the feedforward filter, and transforming the results of multiplication into time domain signals to calculate an initial coefficient of a feedback filter.

摘要翻译： 提供了一种使用FFT获取DFE的初始系数的装置和方法。 该装置包括：信道脉冲响应估计单元，用于通过延迟时域的接收信号并将其变换成频域信号来估计非因果脉冲响应; 前馈滤波器系数获取单元，用于从由信道脉冲响应估计单元估计的非因果信道脉冲响应信号中提取预定数量的信号，并将其变换为频域信号以获取前馈滤波器的初始系数; 以及反馈滤波器系数获取单元，用于将由信道脉冲响应估计单元估计的非因果信道脉冲响应信号变换为频域信号，将其乘以前馈滤波器的初始系数，并将乘法结果变换为时间 域信号来计算反馈滤波器的初始系数。