发明名称 |
Optical information recording apparatus |
摘要 |
An optical information recording and reproducing apparatus is disclosed in which a predetermined signal is recorded on a track of a rotating recording medium by a recording light beam and the recorded information is reproduced by a reproducing light beam. The information recorded on the last record track is reproduced by the recording beam and the reproducing beam and radiating position of the recording beam on the recording medium is displaced by a predetermined distance from the last record track.
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申请公布号 |
US4241240(A) |
申请公布日期 |
1980.12.23 |
申请号 |
US19780954869 |
申请日期 |
1978.10.26 |
申请人 |
HITACHI LTD |
发明人 |
INOSE, FUMIYUKI;KATO, KEIZO;MAEDA, TAKESHI;MIYAUCHI, TOSHIMITSU;SHIGEMATSU, KAZUO;TATSUNO, KIMIO;YONEZAWA, SEIJI |
分类号 |
H04N5/85;G11B7/00;G11B7/0045;G11B7/095;G11B17/00;G11B27/02;(IPC1-7):H04N5/76;G11B7/12 |
主分类号 |
H04N5/85 |
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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