发明名称 |
Signal producing apparatus for optical recording/reproducing apparatus for suppressing noises caused by leaking current of photodetector |
摘要 |
A photodetector to be used to produce a track error signal or the like by receiving the reflected light of light beams radiated to an optical recording medium is formed of a plurality of photodetecting devices provided as divided on a common chip and is provided with either a; leaking current absorbing member for suppressing a leaking current form overflowing through the chip from the photodetecting device receiving a light beam of a large light amount into the other photodetecting devices causing noises; or with a circuit for preventing the generation of a leaking current.
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申请公布号 |
US5229984(A) |
申请公布日期 |
1993.07.20 |
申请号 |
US19910797879 |
申请日期 |
1991.11.26 |
申请人 |
OLYMPUA OPRIXL CO. LTD. |
发明人 |
KONNO, OSAMU;AKIYAMA, KAZUHIRO;YOSHIOKA, KENJI |
分类号 |
G11B7/00;G11B7/005;G11B7/09;G11B7/13 |
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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