Optical head driving unit performance appraising adjusting method for digital universal disc |
Title： |
| Optical head driving unit performance appraising adjusting method for digital universal disc |
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Application Number： |
200410046357 |
Application Date： |
2004/06/07 |
Announcement Date： |
2005/02/23 |
Pub. Date： |
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Publication Number： |
1585023 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G11B 20/18 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Ma Jianshe, Pan Longfa, Xu Duanyi |
Key Words： |
Optical head, driving unit, performance, appraising adjusting method, digital universal disc |
Abstract： |
In this method, the driving unit of the optical read head obtains the signal, and divide the signal as the focus error signal, the error signal of proper sequence, the information layer signal of the disk reflected, facular signal and the damp signal. Process the five sorts of signals respectively to compare and evaluate with the standard value, adjust the optical read-in head to finished the evaluation adjustment. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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