公开(公告)号：EP2175447A4

公开(公告)日：2011-01-19

申请号：EP08764924

申请日：2008-05-30

申请人： SHARP KK

发明人： MORI GO ,  YAMADA HIROHISA ,  YAMAMOTO MASAKI ,  HARADA YASUHIRO ,  TAJIMA HIDEHARU ,  MAEDA SHIGEMI ,  MURAKAMI YOSHITERU

IPC分类号： G11B7/004 ,  G11B7/005 ,  G11B7/007 ,  G11B7/125 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B20/14

CPC分类号： G11B20/18 ,  G11B7/00736 ,  G11B7/24065 ,  G11B7/252 ,  G11B7/258 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B2220/2541 ,  G11B2220/2579

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.

公开(公告)号：EP2383737A4

公开(公告)日：2013-07-03

申请号：EP09834543

申请日：2009-12-28

申请人： SHARP KK

发明人： HAYASHI TETSUYA ,  UENO HIROYASU ,  MAEDA SHIGEMI ,  TAJIMA HIDEHARU ,  OKUMURA TETSUYA ,  HARADA YASUHIRO ,  ETOH ATSUSHI ,  MORI GO

IPC分类号： G11B20/10 ,  G06F21/00 ,  G06F21/80

CPC分类号： G06F21/80 ,  G06F2221/2143 ,  G11B20/00094 ,  G11B20/00304 ,  G11B20/00673 ,  G11B20/00782 ,  G11B20/10 ,  G11B2220/2541 ,  G11B2220/2562