公开(公告)号：EP3054448A1

公开(公告)日：2016-08-10

申请号：EP14849659.9

申请日：2014-04-08

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Holdings Inc.

发明人： YAMADA, Hirohisa ,  NAKA, Takayuki ,  YAMAMOTO, Masaki ,  ADACHI, Yoshihisa ,  TAJIMA, Hideharu ,  KONISHI, Masahito

IPC分类号： G11B7/007 ,  G11B7/005 ,  G11B7/24085 ,  G11B7/24097 ,  G11B20/12 ,  G11B27/00

CPC分类号： G11B7/0079 ,  G11B7/00736 ,  G11B7/013 ,  G11B7/24085 ,  G11B20/1217 ,  G11B27/3027

摘要： An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.

摘要翻译： 本发明的光盘（100）包括：（i）介质信息区域（101）（a），通过给定的调制方法形成的长度较长的凹部和/或突起记录有类型识别信息 （b）其中以第一地址数据格式记录第一地址信息，以及（ii）数据区（102）（a），其中内容数据由 通过给定的调制方法形成并且包括长度短于光学系统分辨率极限的长度的凹部和/或突起的凹部和/或突起，以及（b）第二地址信息被记录在第二个 地址数据格式。

公开(公告)号：EP3872810A1

公开(公告)日：2021-09-01

申请号：EP21169499.7

申请日：2014-04-08

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Holdings Inc.

发明人： TAJIMA, Hideharu ,  YAMAMOTO, Masaki ,  YAMADA, Hirohisa ,  NAKA, Takayuki ,  KONISHI, Masahito

IPC分类号： G11B7/126 ,  G11B7/005 ,  G11B7/1392

摘要： A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

公开(公告)号：EP4068285A1

公开(公告)日：2022-10-05

申请号：EP22174394.1

申请日：2014-04-08

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Holdings Inc.

发明人： YAMADA, Hirohisa ,  NAKA, Takayuki ,  YAMAMOTO, Masaki ,  ADACHI, Yoshihisa ,  TAJIMA, Hideharu ,  KONISHI, Masahito

IPC分类号： G11B7/007 ,  G11B7/005 ,  G11B7/24085 ,  G11B7/24097 ,  G11B20/12 ,  G11B27/00

摘要： An information recording medium (300) comprises a first region (301) in which type identification information for identifying a type of the information recording medium (300) is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device (1), a second region (302) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit, and a blank region (303) between the first region and the second region. Here, the first region (301) contains first address information recorded therein in a first address data format, the second region (302) contains second address information recorded therein in a second address data format that differs from the first address data format, the blank region (303) is constituted by a group of recesses and/or protrusions in which no significant information other than an address is recorded, wherein a region of the blank region (303) which is closer to the first region (301) is provided with recesses and/or protrusions which are formed by the given modulation method, whose lengths are longer than the length of the optical system resolution limit, and which are suited to the first address data format, and a region of the blank region (303) which is closer to the second region (302) is provided with recesses and/or protrusions which are formed by the given modulation method, which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit, and which are suited to the second address data format, and the second region (302) has a track pitch shorter than that of the first region (301).

公开(公告)号：EP3023986A1

公开(公告)日：2016-05-25

申请号：EP14825639.9

申请日：2014-04-08

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Holdings Inc.

发明人： TAJIMA, Hideharu ,  YAMAMOTO, Masaki ,  YAMADA, Hirohisa ,  NAKA, Takayuki ,  KONISHI, Masahito

IPC分类号： G11B7/126 ,  G11B7/005 ,  G11B7/1392

CPC分类号： G11B20/10314 ,  G11B7/0052 ,  G11B7/0053 ,  G11B7/013 ,  G11B7/13 ,  G11B7/1374 ,  G11B7/13927 ,  G11B2007/0133

摘要： A reproducing device (100) includes (i) an optical pickup (6) for irradiating, with reproduction light, an optical disk (1) which is a super-resolution medium, (ii) an RF signal processing circuit (9) for converting, into a reproduction signal, light which reflected off optical disk (1), (iii) an i-MLSE detecting section (141) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

摘要翻译： 一种再现装置（100）包括：（i）用于以再现光照射作为超分辨率介质的光盘（1）的光学拾取器（6），（ii）用于转换的RF信号处理电路 （1）反射的光，（iii）用于评估再现信号的质量的i-MLSE检测部（141），以及（iv）用于校正的像差校正部（142） 通过使用再现信号的质量的评估结果的球面像差。

公开(公告)号：EP4068286A1

公开(公告)日：2022-10-05

申请号：EP22174403.0

申请日：2014-04-08

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Holdings Inc.

发明人： YAMADA, Hirohisa ,  NAKA, Takayuki ,  YAMAMOTO, Masaki ,  ADACHI, Yoshihisa ,  TAJIMA, Hideharu ,  KONISHI, Masahito

IPC分类号： G11B7/007 ,  G11B7/005 ,  G11B7/24085 ,  G11B7/24097 ,  G11B20/12 ,  G11B27/00

摘要： A method for playing back an information recording medium, the information recording medium (300) comprising: a first region (301) in which type identification information for identifying a type of the information recording medium (300) is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device (1), a second region (302) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit, and a blank region (303) between the first region and the second region. Here, the first region (301) contains first address information recorded therein in a first address data format, the second region (302) contains second address information recorded therein in a second address data format that differs from the first address data format, the blank region (303) is constituted by a group of recesses and/or protrusions in which no significant information other than an address is recorded, wherein a region of the blank region (303) which is closer to the first region (301) is provided with recesses and/or protrusions which are formed by the given modulation method, whose lengths are longer than the length of the optical system resolution limit, and which are suited to the first address data format, and a region of the blank region (303) which is closer to the second region (302) is provided with recesses and/or protrusions which are formed by the given modulation method, which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit, and which are suited to the second address data format, and said method comprises determining playback setting of the second region (302) based on type identification information obtained by irradiating the first region (301) with playback light.

公开(公告)号：EP3007172A1

公开(公告)日：2016-04-13

申请号：EP14808270.4

申请日：2014-04-08

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Holdings Inc.

发明人： NAKA, Takayuki ,  YAMADA, Hirohisa ,  YAMAMOTO, Masaki ,  TAJIMA, Hideharu ,  KONISHI, Masahito

IPC分类号： G11B7/007 ,  G11B7/24

CPC分类号： G11B7/007 ,  G11B7/005 ,  G11B7/0052 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/013 ,  G11B7/1372 ,  G11B7/24 ,  G11B7/24065 ,  G11B7/24079 ,  G11B7/24085 ,  G11B7/243 ,  G11B2007/0133

摘要： In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

摘要翻译： （i）根据从第一凹坑列中的最长凹坑（P1max）或最长空间（S1max）获得的反射光量计算出的反射率被定义为第一反射率，和（ii）从第 将从第二凹坑列中的最长凹坑（P2max）或最长空间（S2max）获得的反射光量定义为第二反射率，第一凹坑行形成为使得第一反射率变得与第二反射率基本相同。

公开(公告)号：EP2455938A1

公开(公告)日：2012-05-23

申请号：EP10799899.9

申请日：2010-07-15

申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Corporation ,  TDK Corporation

发明人： TAJIMA, Hideharu ,  ETOH, Atsushi ,  ASHIWA, Hiroaki ,  KOJIMA, Ryo ,  KONISHI, Masahito ,  KURIBAYASHI, Isamu

IPC分类号： G11B7/24 ,  G11B7/007

CPC分类号： G11B7/00736 ,  G11B7/0079 ,  G11B7/24038 ,  G11B7/24041 ,  G11B7/2433 ,  G11B7/254 ,  G11B7/2578 ,  G11B7/259

摘要： An optical information recording medium (1) includes on a substrate (50), a ROM layer (20), a RE layer (40), an intermediate layer (30) separating the ROM layer (20) and the RE layer (40), and a light transmitting layer (10) provided farthest from the substrate (50). The RE layer (40) is an information recording layer provided most farthest from the light transmitting layer (10), and is a recording layer of BCA recorded in a format easily determinable as compared to an information recording format used in the ROM layer (20), and antifouling property of a surface of the light transmitting layer (10) is set based on the RE layer (40). This makes it easy for the recording and reproducing apparatus to confirm a disc type, allows for sharing one recording and reproducing apparatus with other types of optical discs, and simplifies the disc production. Furthermore, an optical information recording medium is accomplished, in which outdated data on the ROM layer is replaced by recording, on the RE layer, updated data obtained while Internet connection can be established.

摘要翻译： 光信息记录介质（1）包括在基板（50），ROM层（20），RE层（40），分离ROM层（20）和RE层（40）的中间层（30） ，以及距离基板（50）最远的透光层（10）。 RE层（40）是与光发射层（10）最距离设置的信息记录层，并且是与在ROM层（20）中使用的信息记录格式相比，以可容易确定的格式记录的BCA的记录层 ），并且基于RE层（40）设定透光层（10）的表面的防污性。 这使得记录和再现装置易于确认盘类型，允许与其他类型的光盘共享一个记录和再现装置，并且简化了盘的制作。 此外，在RE层上，完成了在ROM层上的过时数据被替换为光层信息记录介质的光信息记录介质，可以建立互联网连接时所获得的更新数据。