发明授权
- 专利标题: Optical information recording medium and optical information processing apparatus
- 专利标题(中): 光信息记录媒体和光信息处理装置
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申请号: US12451006申请日: 2008-05-30
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公开(公告)号: US08189444B2公开(公告)日: 2012-05-29
- 发明人: Go Mori , Hirohisa Yamada , Masaki Yamamoto , Yasuhiro Harada , Hideharu Tajima , Shigemi Maeda , Yoshiteru Murakami
- 申请人: Go Mori , Hirohisa Yamada , Masaki Yamamoto , Yasuhiro Harada , Hideharu Tajima , Shigemi Maeda , Yoshiteru Murakami
- 申请人地址: JP Osaka-shi, Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka-shi, Osaka
- 代理机构: Edwards Wildman Palmer LLP
- 代理商 David G. Conlin; Edmund Koundakjian
- 优先权: JP2007-147462 20070601; JP2007-271698 20071018
- 国际申请: PCT/JP2008/060056 WO 20080530
- 国际公布: WO2008/149814 WO 20081211
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.Information is recorded as marks and spaces coded by RLL(1, 7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 μm. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.
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