发明申请
- 专利标题： OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION PROCESSING APPARATUS
- 专利标题（中）： 光信息记录介质和光信息处理设备
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申请号： US13456089申请日： 2012-04-25
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公开(公告)号： US20120207009A1公开(公告)日： 2012-08-16
- 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
- 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
- 优先权： JP2007-147462 20070601; JP2007-271698 20071018
- 主分类号： G11B7/135
- IPC分类号： G11B7/135
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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