发明名称 |
Detecting radius of optically writable label side of optical disc at which markings have not been written |
摘要 |
A method of an embodiment of the invention rotates an optical disc having an optically writable label side. The optical disc is radially scanned with a laser incident to the optically writable label side, from a first edge of the optical disc to a second edge of the optical disc. While the laser is radially scanned from the first edge to the second edge of the optical disc, a first radius at which markings have not been written to the optically writable label side of the optical disc, next to a second radius at which markings have been written to the optically writable label side of the optical disc, is detected.
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申请公布号 |
US7269111(B2) |
申请公布日期 |
2007.09.11 |
申请号 |
US20040867436 |
申请日期 |
2004.06.14 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
KOLL ANDREW;PETTIGREW DAVID |
分类号 |
G11B7/00;B41J2/44;G11B5/09;G11B7/0037;G11B7/0045;G11B23/40 |
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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