发明名称 |
Land Pre-Pit Signal Processing Method And Related Apparatus |
摘要 |
The invention provides for a method, and related apparatus, of producing a Land Pre-Pit signal during playback of an optical disc and including the steps of obtaining an output signal from an optical detector and from which the Land Pre-Pit signal is to be derived, scaling the said output signal responsive to a determined amplitude of a high frequency crosstalk signal arising during reading of the disc and in a manner so as to increase the said output signal when the Land Pre-Pit identified as corresponding to a mark on the disc, and so as to decrease the output signal when the Land Pre-Pit is identified as corresponding to a space on the disc.
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申请公布号 |
US2008031122(A1) |
申请公布日期 |
2008.02.07 |
申请号 |
US20050630093 |
申请日期 |
2005.06.06 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
WU XINYAN;HAROLD-BARRY JOHN A. |
分类号 |
G11B7/00;G11B7/005;G11B7/007 |
主分类号 |
G11B7/00 |
代理机构 |
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地址 |
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