发明名称 |
Approximating topology of optically writable medium surface |
摘要 |
A method controls an assembly using an oscillating wave, such that the assembly moves in an oscillated manner in relation to a surface of an optically writable medium in correspondence with oscillation of the oscillating wave. The assembly generates a beam towards the surface of the optically writable medium. A proximity signal is detected in response to the beam being generated towards the surface of the optical medium, and denotes closeness of the assembly to the surface. A number of peaks within the proximity signal are determined. The time at which each peak within the proximity signal occurs is correlated with a value of the oscillating wave at that time, yielding a number of time-value pairs. The topology of the surface of the optical medium is approximated from these time-value pairs.
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申请公布号 |
US2007274184(A1) |
申请公布日期 |
2007.11.29 |
申请号 |
US20070753507 |
申请日期 |
2007.05.24 |
申请人 |
LIEBERT PAUL;VAN BROCKLIN ANDREW L |
发明人 |
LIEBERT PAUL;VAN BROCKLIN ANDREW L. |
分类号 |
G11B7/09;G01N19/02;G11B7/0037;G11B23/40 |
主分类号 |
G11B7/09 |
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