发明授权
- 专利标题: Dye recording medium having read-only area and recordable area
- 专利标题(中): 染色记录介质具有只读区域和可记录区域
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申请号: US09935829申请日: 2001-08-24
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公开(公告)号: US06587424B2公开(公告)日: 2003-07-01
- 发明人: Kazuo Kuroda , Shoji Taniguchi , Akiyoshi Inoue
- 申请人: Kazuo Kuroda , Shoji Taniguchi , Akiyoshi Inoue
- 优先权: JP9-116627 19970507
- 主分类号: G11B724
- IPC分类号: G11B724
摘要:
A dye record disc has a disc shape substrate having a track-forming surface divided into a read-only area and a recordable area. A reproducing track is formed on the track-forming surface in the read-only area, and has a plurality of pits, each of the pits comprising a dye material, and having a shape corresponding to the reproducing information. A recording/reproducing track is formed on the track-forming surface in the recordable area, and extends continuously, the recording/reproducing track comprising the same dye material as each of the pits. The information reproducing apparatus includes an initial light emitting device for emitting an initial light beam to all of the pits before reproduction, in order to change reflectance of all of the pits; a reproducing light emitting device for emitting a reproducing light to each of the pits; a receiving device for receiving reflected light of the reproducing light reflected by the reproducing track, and generating a receiving signal corresponding to the received reflective light; and a reproducing device for reproducing the reproducing information on the basis of the receiving signal.
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