发明名称 |
Calibration of a focus offset in an optical drive |
摘要 |
Calibration of a focus offset in an optical drive. A calibration pattern, comprising a plurality of marked areas, is marked upon a medium. A user input is received, identifying a perceived darkest marked area of the calibration pattern. The focus offset is determined corresponding to the perceived darkest marked area.
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申请公布号 |
US7577063(B2) |
申请公布日期 |
2009.08.18 |
申请号 |
US20040027855 |
申请日期 |
2004.12.30 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
VAN BROCKLIN ANDREW L.;HANKS D. MITCHEL;LIPINSKI GREG J. |
分类号 |
G11B7/00;G11B7/24 |
主分类号 |
G11B7/00 |
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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