发明申请
US20060182003A1 Optical disc driving apparatus and land pre-pit detection method using the same 有权
光盘驱动装置和使用该光盘驱动装置的地面预制坑检测方法

  • 专利标题: Optical disc driving apparatus and land pre-pit detection method using the same
  • 专利标题(中): 光盘驱动装置和使用该光盘驱动装置的地面预制坑检测方法
  • 申请号: US11401224
    申请日: 2006-04-11
  • 公开(公告)号: US20060182003A1
    公开(公告)日: 2006-08-17
  • 发明人: Beung KimJae Woo
  • 申请人: Beung KimJae Woo
  • 申请人地址: KR Suwon-si
  • 专利权人: Samsung Electronics Co., Ltd.
  • 当前专利权人: Samsung Electronics Co., Ltd.
  • 当前专利权人地址: KR Suwon-si
  • 优先权: KR2005-76937 20040822
  • 主分类号: G11B5/09
  • IPC分类号: G11B5/09 G11B7/00
Optical disc driving apparatus and land pre-pit detection method using the same
摘要:
An optical disc driving apparatus and a land pre-pit detection method are provided for defining determination factors which have an effect on land pre-pit signal detection efficiency. The optical disc driving apparatus comprises an RF processing unit for forming a push-pull signal from an electrical signal acquired through an optical disc; and a control unit for arranging a representative value of determination factors for forming the push-pull signal and testing an error with respect to a land pre-pit (LPP) signal detected from the push-pull signal. As a result, the optical disc driving apparatus is capable of decreasing time for determining the optimal balance level and slice level, and applying the optimal balance level and slice level to the optical disc driving apparatus which operates in real time by defining representative values of each zone according to size of a balance level and a slice level. The optical disc driving apparatus is also capable of increasing performance of land pre-pit detection, by defining representative values of each zone according to a balance level, a slice level and a gain of a wobble signal and by using representative values of each zone when performing real-time test.
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