发明名称 |
Methods and apparatus to compensate for power output variations over time |
摘要 |
A method of compensating for output variations in laser power output over time in a system using a laser to record visible marks on an optical disc, the method comprising (a) applying a test light beam from the laser to the optical disc to determine a test value of an optical parameter, (b) determining a difference between the test value and a predetermined reference value for the optical parameter, and (c) adjusting the laser power output to compensate for the difference.
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申请公布号 |
US7551524(B2) |
申请公布日期 |
2009.06.23 |
申请号 |
US20050051307 |
申请日期 |
2005.02.04 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
COLBUM KEVIN L.;HANKS D. MITCHEL;TAUGHER LAWRENCE N.;LIPINSKI GREG J.;VAN BROCKLIN ANDREW L |
分类号 |
G11B11/00;G11B7/125 |
主分类号 |
G11B11/00 |
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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