专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20100066722A1 INFORMATION REPRODUCTION APPARTUS AND VIDEO DISPLAY APPARATUS 审中-公开
标题翻译：信息再现和视频显示设备
公开(公告)号：US20100066722A1
公开(公告)日：2010-03-18
申请号：US12531441
申请日：2007-11-13
申请人： Hiroki Mouri
发明人： Hiroki Mouri
IPC分类号： H04L7/02 , G06F3/038
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10222 , G11B20/10287 , G11B20/1403 , G11B2220/2541 , G11B2220/2545 , G11B2220/2562
摘要： In an asynchronous read channel system, a reference value interpolation-type maximum likelihood decoder ASML having a small circuit scale (e.g., seven taps) is employed. A nonlinear waveform the equalizer SEQ is provided before the maximum likelihood decoder ASML. The nonlinear waveform the equalizer SEQ includes an FIR filter having, for example, four taps, and performs nonlinear waveform equalization with respect to an input digital signal so that only signal components having small amplitudes and high frequencies are amplified. After the nonlinear waveform equalization, the signal is input to the reference value interpolation-type maximum likelihood decoder ASML, which performs maximum likelihood decoding with respect to the signal. Therefore, even when the reference value interpolation-type maximum likelihood decoder includes a smaller number of taps and thus has a small circuit scale, maximum likelihood decoding with a high error correction function can be performed.
摘要翻译：在异步读通道系统中，采用具有小电路规模（例如，7个抽头）的参考值内插型最大似然解码器ASML。非线性波形在最大似然解码器ASML之前提供均衡器SEQ。非线性波形均衡器SEQ包括具有例如四个抽头的FIR滤波器，并且相对于输入数字信号执行非线性波形均衡，使得仅具有小幅度和高频率的信号分量被放大。在非线性波形均衡之后，信号被输入到参考值内插型最大似然解码器ASML，其对该信号执行最大似然解码。因此，即使当参考值内插型最大似然解码器包括较少数量的抽头，因此具有小的电路规模时，也可以执行具有高纠错功能的最大似然解码。

IPRDB

热门服务

关于我们

友情链接

联系方式