发明名称 |
Multi-track optical data recording and readout |
摘要 |
A method for optical data recording and readout includes scanning a blank region of an optical recording medium while recording a data band including a plurality of adjacent data tracks; synchronizing the recording on all tracks to a common data clock; and simultaneously recording control tracks with the band of data tracks, each control track having a well-defined track center and a repetitive pattern of marks that is synchronized to the data clock. The method further includes optically sensing the cross-scan positions and clock offsets of at least one control track on either side of the data band; interpolating between the control track cross-scan positions to predict the cross-scan positions of each data track and compensate for magnification errors; interpolating between the control track clock offsets to predict the clock offset of each data track and compensate for skew errors; and simultaneously reading and decoding information recorded on all tracks of the data band.
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申请公布号 |
US6693872(B1) |
申请公布日期 |
2004.02.17 |
申请号 |
US20000650199 |
申请日期 |
2000.08.29 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
BREWEN ALAN T.;MARCHANT ALAN B. |
分类号 |
G11B7/004;G11B7/005;G11B7/007;G11B7/09;G11B7/14;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/004 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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