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    Optical disk, and method and apparatus for reproducing information recorded in optical disk
    2.
    发明授权
    Optical disk, and method and apparatus for reproducing information recorded in optical disk 有权
    光盘，以及用于再现记录在光盘中的信息的方法和装置

    公开(公告)号：US06661768B1

    公开(公告)日：2003-12-09

    申请号：US09677595

    申请日：2000-10-03

    申请人： Takashi Yumiba ,  Teruyuki Takizawa ,  Mitsuro Moriya ,  Mitsuaki Oshima ,  Akihiko Nishioka ,  Koichi Morioka

    发明人： Takashi Yumiba ,  Teruyuki Takizawa ,  Mitsuro Moriya ,  Mitsuaki Oshima ,  Akihiko Nishioka ,  Koichi Morioka

    IPC分类号： G11B724

    CPC分类号： G11B23/281 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B20/00086 ,  G11B20/00586 ,  G11B20/00594

    摘要： An optical disk is provided for recording data of a signal modulated according to a predetermined modulation method in a form of concavo-convex pits. The optical disk includes a first area having a reflecting film partly removed, and a second area for recording pits which are different from pits satisfying requirements of the predetermined modulation method. The first area having the reflecting film partly removed includes a portion which is formed by removing the reflecting film, and has a length longer than a maximum pit length determined by the modulation method in a circumferential direction of the optical disk. When the pits recorded on the optical disk are physically copied as they are, physical copying of the optical disk can be prevented by utilizing such a difference that the authorized optical disk differs from a pirated copy in a combination of the respective reproduced signals of the first and second areas.

    摘要翻译： 提供了一种光盘，用于记录根据预定调制方式调制的信号的数据，其形式为凹凸坑。 光盘包括具有部分去除的反射膜的第一区域和用于记录不同于满足预定调制方式的要求的凹坑的凹坑的第二区域。 具有部分去除反射膜的第一区域包括通过去除反射膜形成的部分，并且具有比在光盘的圆周方向上由调制方法确定的最大凹坑长度更长的长度。 当记录在光盘上的凹坑被物理地复制时，可以通过利用这样的差异来防止光盘的物理复制：授权的光盘与盗版的不同之处在于，将第一 和第二个地区。

    Optical disk, and method and apparatus for reproducing information recorded in optical disk
    3.
    发明申请
    Optical disk, and method and apparatus for reproducing information recorded in optical disk 有权
    光盘，以及用于再现记录在光盘中的信息的方法和装置

    公开(公告)号：US20050169145A1

    公开(公告)日：2005-08-04

    申请号：US11097263

    申请日：2005-04-04

    申请人： Takashi Yumiba ,  Teruyuki Takizawa ,  Mitsuro Moriya ,  Mitsuaki Oshima ,  Akihiko Nishioka ,  Koichi Morioka

    发明人： Takashi Yumiba ,  Teruyuki Takizawa ,  Mitsuro Moriya ,  Mitsuaki Oshima ,  Akihiko Nishioka ,  Koichi Morioka

    IPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B20/00 ,  G11B23/28 ,  G11B5/09

    CPC分类号： G11B23/281 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B20/00086 ,  G11B20/00586 ,  G11B20/00594

    摘要： An optical disk is provided for recording data of a signal modulated according to a predetermined modulation method in a form of concavo-convex pits. The optical disk includes a first area having a reflecting film partly removed, and a second area for recording pits which are different from pits satisfying requirements of the predetermined modulation method. The first area having the reflecting film partly removed includes a portion which is formed by removing the reflecting film, and has a length longer than a maximum pit length determined by the modulation method in a circumferential direction of the optical disk. When the pits recorded on the optical disk are physically copied as they are, physical copying of the optical disk can be prevented by utilizing such a difference that optical disk differs from a pirated copy in a combination of the respective reproduced signals of the first and second areas.

    摘要翻译： 提供了一种光盘，用于记录根据预定调制方式调制的信号的数据，其形式为凹凸坑。 光盘包括具有部分去除的反射膜的第一区域和用于记录不同于满足预定调制方式的要求的凹坑的凹坑的第二区域。 具有部分去除反射膜的第一区域包括通过去除反射膜形成的部分，并且具有比在光盘的圆周方向上由调制方法确定的最大凹坑长度更长的长度。 当记录在光盘上的凹坑原样被物理地复制时，可以通过利用这样的差异来防止光盘的不同之处在于，光盘与盗版的不同之处在于将第一和第二的各个再现信号的组合 地区

    Recording medium, method and apparatus for recording/reproducing information which has been scrambled using a medium identifier and a sector number
    5.
    发明授权
    Recording medium, method and apparatus for recording/reproducing information which has been scrambled using a medium identifier and a sector number 有权
    用于记录/再现已经使用介质标识符和扇区号加扰的信息的记录介质，方法和装置

    公开(公告)号：US06526010B1

    公开(公告)日：2003-02-25

    申请号：US09686967

    申请日：2000-10-12

    申请人： Koichi Morioka ,  Takashi Yumiba ,  Teruyuki Takizawa

    发明人： Koichi Morioka ,  Takashi Yumiba ,  Teruyuki Takizawa

    IPC分类号： G11B509

    CPC分类号： G11B20/1217 ,  G06F21/10 ,  G06F21/80 ,  G11B20/00086 ,  G11B20/0021

    摘要： An information recording medium includes a plurality of sectors each of which has a sector header area storing a unique sector number and a data storage area for storing user data. User data to be recorded onto the information recording medium is scrambled using a data scramble key generated from a unique medium identifier of the information recording medium and a sector number of a sector into which the user data is to be recorded. The medium identifier used here has been scrambled using a medium identifier scramble key generated from predetermined data and a sector number of a sector into which the medium identifier is to be stored, and stored in that sector. In so doing, security is ensured not only for each individual information recording medium but also for each individual sector, with it being possible to protect data recorded on the information recording medium against unauthorized reproduction.

    摘要翻译： 信息记录介质包括多个扇区，每个扇区具有存储唯一扇区号的扇区标题区域和用于存储用户数据的数据存储区域。 要记录在信息记录介质上的用户数据使用从信息记录介质的唯一介质标识符产生的数据加密密钥和用户数据要被记录到的扇区的扇区号进行加扰。 这里使用的介质标识符已经使用从预定数据生成的介质标识符加密密钥和要存储介质标识符的扇区的扇区号进行加扰，并存储在该扇区中。 在这样做时，不仅对于每个单独的信息记录介质，而且对于每个单独的扇区，都可以确保安全性，从而可以保护记录在信息记录介质上的数据免受未经授权的再现。

    Optical disc, having a certification pit for certifying that data recording thereon is original
    8.
    发明授权
    Optical disc, having a certification pit for certifying that data recording thereon is original 有权
    具有用于证明其上的数据记录的认证坑的光盘是原始的

    公开(公告)号：US06901042B2

    公开(公告)日：2005-05-31

    申请号：US09832960

    申请日：2001-04-12

    申请人： Koichi Morioka ,  Takashi Yumiba ,  Keiichi Kawashima

    发明人： Koichi Morioka ,  Takashi Yumiba ,  Keiichi Kawashima

    IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B20/00 ,  G11B7/24

    CPC分类号： G11B20/00594 ,  G11B7/007 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/00586

    摘要： An optical disc includes a processed area that has been processed by the irradiation of a YAG laser. Concave pits and convex pits having a length 3T-14T (T=0.133 μm) are formed in an area of the optical disc other than the processed area. The processed area includes (1) a concave pit having a length X or (2) a pit string that has a length X and includes a convex pit from which a reflection layer has been removed. A specific area of the optical disc records physical character information that shows the location and length of the concave pit or the pit string in the processed area.

    摘要翻译： 光盘包括经过YAG激光照射处理的处理区域。 在除了处理区域之外的光盘的区域中形成长度为3T-14T（T =0.133μm）的凹坑和凹坑。 处理区域包括（1）具有长度X的凹坑或（2）具有长度X的凹坑串，并且包括从其去除了反射层的凸坑。 光盘的特定区域记录显示处理区域中的凹坑或凹坑串的位置和长度的物理字符信息。

    Optical disc, reproduction apparatus, and disc identifier selecting apparatus
    10.
    发明授权
    Optical disc, reproduction apparatus, and disc identifier selecting apparatus 有权
    光盘，再现装置和盘识别器选择装置

    公开(公告)号：US07012879B2

    公开(公告)日：2006-03-14

    申请号：US10989004

    申请日：2004-11-16

    申请人： Koichi Morioka ,  Takashi Yumiba ,  Keiichi Kawashima

    发明人： Koichi Morioka ,  Takashi Yumiba ,  Keiichi Kawashima

    IPC分类号： G11B7/24

    CPC分类号： G11B20/00594 ,  G11B7/007 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/00586

    摘要： An optical disc includes a processed area that has been processed by the irradiation of a YAG laser. Concave pits and convex pits having a length 3T–14T (T=0.133 μm) are formed in an area of the optical disc other than the processed area. The processed area includes (1) a concave pit having a length X or (2) a pit string that has a length X and includes a convex pit from which a reflection layer has been removed. A specific area of the optical disc records physical character information that shows the location and length of the concave pit or the pit string in the processed area.

    摘要翻译： 光盘包括经过YAG激光照射处理的处理区域。 在除了处理区域之外的光盘的区域中形成长度为3T-14T（T =0.133μm）的凹坑和凹坑。 处理区域包括（1）具有长度X的凹坑或（2）具有长度X的凹坑串，并且包括从其去除了反射层的凸坑。 光盘的特定区域记录显示处理区域中的凹坑或凹坑串的位置和长度的物理字符信息。