发明名称 |
Optical disc signal reproducing system with tilt immunization |
摘要 |
An optical signal reproducing system uses laser light reflected from a recording disc track 12 to recover signals stored in pits 13 separated by lands. The differential output of the reflected light only when the focused beam is incident on pits is used to control lateral tracking offset correction in a negative feedback mode, thereby immunizing the system from false tracking correction due to light reflected from lands when the disc is tilted from the optical axis.
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申请公布号 |
US4502134(A) |
申请公布日期 |
1985.02.26 |
申请号 |
US19820393944 |
申请日期 |
1982.06.30 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
KONDO, MITSUSHIGE;OKADA, KAZUO;HIRASAWA, KAZUO |
分类号 |
G11B7/013;G11B7/09;G11B7/095;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/013 |
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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