发明名称 |
Optical disk drive that can adjust erase power during writing operation |
摘要 |
An optical disk drive that can automatically adjust an erase power to an appropriate level to keep the error rate low and not to shorten the life of an erasable optical disk. The optical disk drive obtains a reference erasing modulation factor using a test area of the erasable optical disk when the disk is set. While overwriting data in the erasable optical disk, the optical disk drive obtains an erasing modulation factor based on the read signal detected in an erased region from time to time to adjust the erase power so that the erase power continually adjusted to the appropriate level.
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申请公布号 |
US7245571(B2) |
申请公布日期 |
2007.07.17 |
申请号 |
US20020153506 |
申请日期 |
2002.05.21 |
申请人 |
TEAC CORPORATION |
发明人 |
SHIMIZU TOSHIKI;MASHIMO AKIRA |
分类号 |
G11B7/004;G11B7/006;G11B7/0045;G11B7/125 |
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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