发明名称 |
Optical card, a card holder and an apparatus for recording, reproducing and erasing information on and from the optical card |
摘要 |
An optical card including an optical storage medium and a single or a plurality of members made of a magnetic material which are incorporated with the optical card is set forth. A card holder for holding the optical card consists of a table for supporting the optical card and a single member or a plurality of members made of a magnetic material for attracting the optical card. An apparatus for recording and reproducing information on and from the optical card held by the card holder includes a light-irradiating unit for emitting light beams onto the optical storage medium of the optical card and a drive unit for relatively moving the card holder and the light-irradiating unit for tracking, with which the recording, reproducing, or erasing operation can be accurately carried out. |
申请公布号 |
US5117415(A) |
申请公布日期 |
1992.05.26 |
申请号 |
US19910735685 |
申请日期 |
1991.07.29 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
OHTA, KENJI;KATAYAMA, HIROYUKI;NAKAYAMA, JUNICHIRO;KIMURA, KAZUHIRO;MATOBA, HIROTSUGU;KOBAYASHI, SHOZO |
分类号 |
G11B7/0033;G11B7/08;G11B7/24;G11B17/34;G11B25/04 |
主分类号 |
G11B7/0033 |
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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