发明名称 |
Optical disc reproducing apparatus |
摘要 |
An optical disc reproducing apparatus includes an A/D converter; an asymmetry compensator for detecting 4T sampling signals; a phase locked loop including a frequency detector that counts and detects run-length signals from the digital signals and compensates frequency errors of the digital signals; a binary module including a Viterbi decoder, a slicer, and a minimum T compensator that compensates the digital signal with a minimum signal having a unit cycle; an equalizer; an adaptive level error detector detecting a base level of the Viterbi decoder from both an input signal into the equalizer and an output signal from the Viterbi decoder, and computing a filtering coefficient of the equalizer from the base level; and a signal quality measurer measuring a jitter or an SbER of the digital signal.
|
申请公布号 |
US2007195675(A1) |
申请公布日期 |
2007.08.23 |
申请号 |
US20060528475 |
申请日期 |
2006.09.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE JUNG HYUN;CHO EING SEOB;RYU EUN JIN;KONG JUN JIN |
分类号 |
G11B20/10 |
主分类号 |
G11B20/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|