Digital colour multi-layer multi-order write-in/read-out method for optical disk |
Title： |
| Digital colour multi-layer multi-order write-in/read-out method for optical disk |
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Application Number： |
00103501 |
Application Date： |
2000/03/24 |
Announcement Date： |
2000/08/23 |
Pub. Date： |
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Publication Number： |
1264110 |
Announcement Number： |
1108605 |
Grant Date： |
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Granted Pub. Date： |
2003-5-14 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G11B 7/0045, G11B 7/005 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Xu Duanyi, Cheng Xianfu |
Key Words： |
Digital, colour, multi-layer, multi-order, write-in/read-out method, optical disk |
Abstract： |
A write-in/read-out method of optical disk for increasing the storage capacity and write/read speed includes such steps as preparing optical disk with n record layers, rotating the optical disk to make its n record layers always in the focus depth of object lens, moving object lens to the channel of target sector, writing in n-channel data with laser device, said n laser beams pass-through chromatism-eliminating object lens and disc base and then are focused onto n record layers of optical disk, radially moving ojbect lens along optical disk, reading the format code of each sector, and reading out data of n record layers. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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