公开(公告)号：US07266076B2

公开(公告)日：2007-09-04

申请号：US10743429

申请日：2003-12-23

申请人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

发明人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

IPC分类号： G11B7/00

CPC分类号： G11B7/0053 ,  G11B7/0941

摘要： An automatic detecting device of land pre-pits signal is disclosed. The device adjusts gain of push-pull signals to raise the signal to noise ratio of the land pre-pits signal to the wobble signal. Digital logic computation is also utilized to recognize the practical position of the land pre-pits. The level automatic detection of the RC circuit and the fixed slice level compose an automatic slice level, which is the basis for detecting the land pre-pits. The disclosed device eliminates the drawback of not easy to obtain correct land pre-pits signal from written disks by the conventional of fixed land pre-pits slice level technology.

摘要翻译： 公开了一种陆地预制坑信号的自动检测装置。 该装置调整推挽信号的增益，以将陆地预制凹坑信号的信噪比提高到摆动信号。 数字逻辑计算也用于识别土地预制坑的实际位置。 RC电路的电平自动检测和固定切片电平构成自动切片电平，是检测土地预制坑的基础。 所公开的装置消除了通过常规的固定地面预制切片级技术不容易从写入盘获得正确的地面预制凹坑信号的缺点。

公开(公告)号：US20050002304A1

公开(公告)日：2005-01-06

申请号：US10743429

申请日：2003-12-23

申请人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

发明人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/09

CPC分类号： G11B7/0053 ,  G11B7/0941

摘要： An automatic detecting device of land pre-pits signal is disclosed. The device adjusts gain of push-pull signals to raise the signal to noise ratio of the land pre-pits signal to the wobble signal. Digital logic computation is also utilized to recognize the practical position of the land pre-pits. The level automatic detection of the RC circuit and the fixed slice level compose an automatic slice level, which is the basis for detecting the land pre-pits. The disclosed device eliminates the drawback of not easy to obtain correct land pre-pits signal from written disks by the conventional of fixed land pre-pits slice level technology.

摘要翻译： 公开了一种陆地预制坑信号的自动检测装置。 该装置调整推挽信号的增益，以将陆地预制凹坑信号的信噪比提高到摆动信号。 数字逻辑计算也用于识别土地预制坑的实际位置。 RC电路的电平自动检测和固定切片电平构成自动切片电平，是检测土地预制坑的基础。 所公开的装置消除了通过常规的固定地面预制切片级技术不容易从写入盘获得正确的地面预制凹坑信号的缺点。