发明名称 |
Optical disk device setting a gain of an amplifier so that a peak value and a bottom value of wobble signal components coincide |
摘要 |
In this optical disk device, a reflected light of a light beam reflected from a pre-pit-formed side of a track wobbled on a disk is detected as a first detection signal. A reflected light of the light beam reflected from the other side of the track is detected as a second detection signal. The first detection signal and/or the second detection signal are/is amplified with a gain(s) so set that a peak value of a wobble signal component of the first detection signal coincides with a bottom value of a wobble signal component of the second detection signal.
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申请公布号 |
US7212486(B2) |
申请公布日期 |
2007.05.01 |
申请号 |
US20020283802 |
申请日期 |
2002.10.29 |
申请人 |
TEAC CORPORATION |
发明人 |
MASHIMO AKIRA;UENO KEISHI |
分类号 |
G11B7/00;G11B7/0045;G11B7/005;G11B7/007 |
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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