公开(公告)号：US20040125235A1

公开(公告)日：2004-07-01

申请号：US10734413

申请日：2003-12-12

申请人： LG Electronics Inc.

发明人： Joon Tae Kim ,  Sung Ryong Hong ,  In Hwan Choi ,  Kyung Won Kang ,  Jong Woong Shin ,  Byoung Gill Kim ,  Woo Chan Kim ,  Jae Hyoung Kim

IPC分类号： H04N005/21

CPC分类号： H04N5/21 ,  H04L2025/0349 ,  H04N5/211

摘要： Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.

摘要翻译： 公开了使用其的信道均衡器和数字电视接收机。 均衡器包括信道估计器，信道失真补偿器和噪声消除器。 信道估计器从接收信号估计传输信道的脉冲响应。 信道失真补偿器对接收到的信号和估计的脉冲响应进行变换和处理。 噪声消除器预测并消除均衡期间产生的放大噪声。

公开(公告)号：US20040008801A1

公开(公告)日：2004-01-15

申请号：US10614932

申请日：2003-07-07

申请人： LG Electronics Inc.

发明人： Woo Chan Kim

IPC分类号： H03D001/24

CPC分类号： H03D1/24

摘要： VSB reception system with a frequency domain equalizer including a demodulating part for receiving, converting, and demodulating a signal, a frequency domain equalizing part for equalizing the demodulated signal for removing a distorted component from the demodulated signal, and a noise removing part for (a) receiving the equalized signal, (b) calculating a reference error signal that is a difference between the equalized signal and the signal having the noise removed therefrom, (c) calculating an error signal that is a difference between the reference error signal and the extracted noise signal, (d) renewing parameters with reference to the reference error signal and the error signal, and (e) calculating a difference between the equalized signal and the extracted noise signal, to provide a signal having the noise removed therefrom.

摘要翻译： 具有频域均衡器的VSB接收系统，包括用于接收，转换和解调信号的解调部分，用于对解调信号进行均衡的频域均衡部分，用于从解调信号中去除失真分量;以及噪声去除部分，用于（ ）接收均衡信号，（b）计算作为均衡信号与去除噪声的信号之间的差的参考误差信号，（c）计算作为参考误差信号与提取的噪声信号之间的差的误差信号 噪声信号，（d）参考参考误差信号和误差信号更新参数，以及（e）计算均衡信号和提取的噪声信号之间的差异，以提供从其中去除噪声的信号。