公开(公告)号：US07698743B2

公开(公告)日：2010-04-13

申请号：US10577435

申请日：2004-12-20

Applicant: Motoji Ohmori ,  Shunji Ohara ,  Takashi Katayama

Inventor： Motoji Ohmori ,  Shunji Ohara ,  Takashi Katayama

IPC: G06F12/14 ,  G06F7/04 ,  H04L9/32

CPC classification number: G06F21/10 ,  G11B20/00086 ,  H04L9/0869 ,  H04L9/321 ,  H04L9/3247 ,  H04L9/3263 ,  H04L9/3271 ,  H04L2209/56 ,  H04L2209/605

Abstract: A DVD terminal (20) makes a request for sending a sub-content to an authentication server (40) (in this case, attaches the “model name and serial number” of the DVD terminal (20)) (S302). The authentication server (40) generates a random number R (S304) and sends it to the DVD terminal (20) (S306). The DVD terminal (20) reads a terminal key and a terminal ID that are stored in a terminal information memory unit (25), decrypts the received random number R using a terminal key (SK_X) (S308) and sends this and the terminal ID (ID_X) to the authentication server (40) (S310). The authentication server (40) verifies the random number R and the terminal ID that are received from the DVD terminal (20) and encrypted, and judges whether the DVD terminal (20) is the authenticated terminal or not (S312).

Abstract translation: DVD终端（20）向认证服务器（40）发出请求发送子内容（例如，DVD终端（20）的“型号名称”和“序列号”）（S302）。 认证服务器（40）生成随机数R（S304）并将其发送到DVD终端（20）（S306）。 DVD终端（20）读取存储在终端信息存储单元（25）中的终端密钥和终端ID，使用终端密钥（SK_X）对接收到的随机数R进行解密（S308），并发送解密的随机数R 以及到认证服务器（40）的终端ID（ID_X）（S310）。 认证服务器（40）验证从DVD终端（20）接收到的随机数R和终端ID，并判断DVD终端（20）是否为认证终端（S312）。

公开(公告)号：US20080310292A1

公开(公告)日：2008-12-18

申请号：US12192501

申请日：2008-08-15

Applicant: Takahiro NAGAI ,  Hideshi ISHIHARA ,  Yuji TAKAGI ,  Takashi YUMIBA ,  Mamoru SHOJI ,  Mitsuaki OSHIMA ,  Shunji OHARA ,  Motoshi ITO ,  Takashi ISHIDA ,  Atsushi NAKAMURA ,  Tadashi JAHANA ,  Kouhei NAKATA

Inventor： Takahiro NAGAI ,  Hideshi ISHIHARA ,  Yuji TAKAGI ,  Takashi YUMIBA ,  Mamoru SHOJI ,  Mitsuaki OSHIMA ,  Shunji OHARA ,  Motoshi ITO ,  Takashi ISHIDA ,  Atsushi NAKAMURA ,  Tadashi JAHANA ,  Kouhei NAKATA

IPC: G11B7/24

CPC classification number: G11B23/284 ,  G11B7/0037 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/24038 ,  G11B7/263 ,  G11B19/12 ,  G11B19/122 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/00181 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00268 ,  G11B20/00304 ,  G11B20/00311 ,  G11B20/00333 ,  G11B20/00347 ,  G11B20/00492 ,  G11B20/00528 ,  G11B20/00557 ,  G11B20/00666 ,  G11B20/00768 ,  G11B20/0084 ,  G11B20/1217 ,  G11B23/281 ,  G11B23/34 ,  G11B23/36

Abstract: A recording type optical disk on which data is recordable includes a data recording and reproducing area for recording data therein and reproducing data therefrom, and a read-only disk identification information area for recording disk identification information for identifying the optical disk therein. In the optical disk, the disk identification information is formed by removing a reflection film that is formed on the optical disk in a strip shape. The disk identification information includes an inherent disk identifier for each optical disk, and the data recording and reproducing area includes an area for recording encrypted data therein. The encrypted data is encrypted by using information including the disk identification information for identifying the optical disk as a key.

Abstract translation: 数据可记录的记录型光盘包括用于在其中记录数据并再现数据的数据记录和再现区域，以及用于记录用于识别光盘的盘识别信息的只读盘识别信息区域。 在光盘中，通过去除形成在光盘上的反射膜形成带状识别信息。 盘识别信息包括每个光盘的固有盘标识符，数据记录和再现区域包括用于在其中记录加密数据的区域。 通过使用包括用于识别光盘的盘识别信息作为关键字的信息来加密加密数据。

公开(公告)号：US20070088945A1

公开(公告)日：2007-04-19

申请号：US10577435

申请日：2004-12-20

Applicant: Motoji Ohmori ,  Shunji Ohara ,  Takashi Katayama

Inventor： Motoji Ohmori ,  Shunji Ohara ,  Takashi Katayama

IPC: H04L9/00

CPC classification number: G06F21/10 ,  G11B20/00086 ,  H04L9/0869 ,  H04L9/321 ,  H04L9/3247 ,  H04L9/3263 ,  H04L9/3271 ,  H04L2209/56 ,  H04L2209/605

Abstract: A DVD terminal (20) makes a request for sending a sub-content to an authentication server (40) (in this case, attaches the “model name and serial number” of the DVD terminal (20)) (S302). The authentication server (40) generates a random number R (S304) and sends it to the DVD terminal (20) (S306). The DVD terminal (20) reads a terminal key and a terminal ID that are stored in a terminal information memory unit (25), decrypts the received random number R using a terminal key (SK_X) (S308) and sends this and the terminal ID (ID_X) to the authentication server (40) (S310). The authentication server (40) verifies the random number R and the terminal ID that are received from the DVD terminal (20) and encrypted, and judges whether the DVD terminal (20) is the authenticated terminal or not (S312).

Abstract translation: DVD终端（20）向认证服务器（40）请求发送子内容（在这种情况下，附加DVD终端（20）的“型号名称和序列号”）（S302）。 认证服务器（40）生成随机数R（S 304），并发送给DVD终端（20）（S166）。 DVD终端（20）读取存储在终端信息存储单元（25）中的终端密钥和终端ID，使用终端密钥（SK_X）对接收的随机数R进行解密（S 308），并将其发送到终端 ID（ID_X）发送到认证服务器（40）（S 310）。 认证服务器（40）验证从DVD终端（20）接收到的加密的随机数R和终端ID，并判断DVD终端（20）是否为认证终端（S 312）。

公开(公告)号：US06952384B1

公开(公告)日：2005-10-04

申请号：US09089901

申请日：1998-06-03

Applicant: Mamoru Shoji ,  Atsushi Nakamura ,  Takashi Ishida ,  Shunji Ohara

Inventor： Mamoru Shoji ,  Atsushi Nakamura ,  Takashi Ishida ,  Shunji Ohara

IPC: G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B7/125 ,  G11B20/10 ,  G11B20/18

CPC classification number: G11B7/126 ,  G11B7/00718 ,  G11B7/0945 ,  G11B7/0956 ,  G11B20/10009 ,  G11B20/1816

Abstract: An optical disk apparatus performing either one of recording and reproduction of an optical disk in which groove-shaped groove tracks and land tracks present between the groove tracks are alternately connected to each other in a spiral shape, includes: a recording and reproduction unit for recording a signal in at least one continuous groove track and at least one continuous land track, and then reproducing the signal from the groove track and the land track; a detector for detecting a quality of the signal recorded and reproduced by the recording and reproduction unit; a control parameter setting unit for setting a control parameter related to at least one of the recording and the reproduction of the optical disk; and a controller for changing the control parameter set by the control parameter setting unit, repeating the recording and reproduction performed by the recording and reproduction unit and detection performed by the detector every time the control parameter is changed, and determining the control parameter based on the quality of the signal detected by the detector.

Abstract translation: 执行光盘的记录和再现的光盘装置，其中存在于凹槽轨道之间的槽形凹槽轨道和纹脊轨迹彼此交替地以螺旋形状彼此连接，包括：用于记录的记录和再现单元 在至少一个连续凹槽轨道和至少一个连续的平台轨道中的信号，然后从凹槽轨道和陆地轨迹再现信号; 用于检测由记录和再现单元记录和再现的信号的质量的检测器; 控制参数设置单元，用于设置与光盘的记录和再现中的至少一个有关的控制参数; 以及控制器，用于改变由控制参数设置单元设置的控制参数，重复由记录和再现单元执行的记录和再现以及每次控制参数改变时由检测器执行的检测，以及基于 由检测器检测到的信号的质量。

公开(公告)号：USRE38706E1

公开(公告)日：2005-02-22

申请号：US10345243

申请日：2003-01-16

Applicant: Yuji Takagi ,  Takahiro Nagai ,  Yoshihisa Fukushima ,  Shunji Ohara ,  Isao Satoh

Inventor： Yuji Takagi ,  Takahiro Nagai ,  Yoshihisa Fukushima ,  Shunji Ohara ,  Isao Satoh

IPC: G11B7/00

CPC classification number: G11B7/00

Abstract: In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.

公开(公告)号：US06456585B1

公开(公告)日：2002-09-24

申请号：US09570734

申请日：2000-05-12

Applicant: Yoshinari Takemura ,  Shigeru Furumiya ,  Takashi Ishida ,  Yoshito Aoki ,  Shunji Ohara ,  Yuichi Kamioka ,  Toyoji Gushima

Inventor： Yoshinari Takemura ,  Shigeru Furumiya ,  Takashi Ishida ,  Yoshito Aoki ,  Shunji Ohara ,  Yuichi Kamioka ,  Toyoji Gushima

IPC: G11B724

CPC classification number: G11B7/0901 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0938 ,  G11B20/1252 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1239 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537

Abstract: Address groups are composed of two of address blocks 16, 17, 18, and 19, where the address blocks 16, 17, 18, and 19 are disposed in a sector address region 5 and include identifiable information of address numbers 13 and overlapping sequential numbers 14. The address groups are disposed so that each group is alternately shifted from a track center 2 toward the inner periphery side or the outer periphery side, by a width substantially equal to half the track pitch, along the radius direction.

Abstract translation: 地址组由地址块16,17,18和19中的两个组成，其中地址块16,17,18和19被布置在扇区地址区5中，并且包括地址号13的可识别信息和重叠的连续数 地址组被设置成使得每个组沿着半径方向从轨道中心2向内周侧或外周侧交替地移动宽度大致等于轨道间距的一半的宽度。

公开(公告)号：US06430129B1

公开(公告)日：2002-08-06

申请号：US09382951

申请日：1999-08-25

Applicant: Shunji Ohara ,  Takashi Ishida ,  Yoshikazu Goto ,  Isao Satoh

Inventor： Shunji Ohara ,  Takashi Ishida ,  Yoshikazu Goto ,  Isao Satoh

IPC: G11B700

CPC classification number: G11B20/0092 ,  G11B17/225 ,  G11B19/00 ,  G11B19/04 ,  G11B19/10 ,  G11B19/12 ,  G11B20/00086 ,  G11B20/00876 ,  G11B20/10 ,  G11B20/1816 ,  G11B23/0317 ,  G11B27/002 ,  G11B27/36 ,  G11B2220/20

Abstract: An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; and a verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract translation: 信息记录方法有： 历史确定步骤，用于确定是否已经被包装并且能够用于信息记录和再现的介质是否已经从使用具有关于介质是否已经被从 不论情况如何 以及验证步骤，用于当确定结果表示介质已经从壳体中取出时，总是验证满足预定条件的信息的正确性。

公开(公告)号：US06373815B1

公开(公告)日：2002-04-16

申请号：US09400537

申请日：1999-09-21

Applicant: Takashi Ishida ,  Shin-ichi Tanaka ,  Akira Mutoh ,  Yoshinari Takemura ,  Shunji Ohara ,  Isao Satoh

Inventor： Takashi Ishida ,  Shin-ichi Tanaka ,  Akira Mutoh ,  Yoshinari Takemura ,  Shunji Ohara ,  Isao Satoh

IPC: G11B700

CPC classification number: G11B7/0938 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/24082 ,  G11B27/19 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/211

Abstract: In an optical disc, an ID field contains a plurality of address information, and is preliminarily recorded in convex and concave signals, and is composed of two sets offset by about ½ track pitch toward the internal or external track direction adjacent to the guide track, an information recording field is composed of grooves and lands oscillating at a single frequency in the radial direction, and the grooves and lands alternate in every revolution of the guide track. When w bits of information are included in one period of oscillation, an information unrecorded field between the ID field and information recording field is arranged to have a length of w/10 bits or more and/or w bits or less, and therefore, when recording continuous information data such as video data, it is possible to record continuously by generating a clock securely from the oscillating signal, and moreover, the format efficiency is improved, so that a format of a larger capacity is achieved.

Abstract translation: 在光盘中，ID字段包含多个地址信息，并且预先记录在凸和凹信号中，并且由邻近导轨的内部或外部轨道方向偏移大约1/2道距的两组组成， 信息记录区域由在径向上以单个频率振荡的凹槽和平台组成，并且凹槽和平台在导轨的每转一圈中交替。 当信息的w位被包括在一个振荡周期中时，ID字段和信息记录字段之间的信息未记录字段被布置为具有w / 10位或更多个和/或w位或更少的长度，因此，当 记录诸如视频数据的连续信息数据，可以通过从振荡信号安全地产生时钟来连续记录，此外，提高格式效率，从而实现更大容量的格式。

公开(公告)号：US6167022A

公开(公告)日：2000-12-26

申请号：US400538

申请日：1999-09-21

Applicant: Takashi Ishida ,  Shin-ichi Tanaka ,  Akira Mutoh ,  Yoshinari Takemura ,  Shunji Ohara ,  Isao Satoh

Inventor： Takashi Ishida ,  Shin-ichi Tanaka ,  Akira Mutoh ,  Yoshinari Takemura ,  Shunji Ohara ,  Isao Satoh

IPC: G11B7/007 ,  G11B7/09 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC classification number: G11B7/0938 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/24082 ,  G11B27/19 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/211

Abstract: One or more optical discs, each having a ROM field having information with a length of at least one track formed in convex and concave pit rows, and a rewritable field capable of rewriting the information with a length of at least one track, an information unrecorded field having a length of at least one track located between the ROM field and rewritable field, the rewritable field having a spiral or concentric guide track oscillating in a radial direction, the ROM field having spiral or concentric convex and concave pit rows, and at least a part field at the rewritable field side of the information unrecorded field has a transition field having a spiral or concentric guide track oscillating in the radial direction continuously or intermittently and a track pitch To of the ROM field and a track pitch Tw between grooves and lands of the rewritable field have values such that To>Tw.

Abstract translation: 一个或多个光盘，每个光盘具有ROM领域，其具有形成在凸凹槽行中的至少一个轨道的长度的信息，以及能够重写具有至少一个轨道长度的信息的可重写字段，未记录的信息 具有位于ROM场和可重写场之间的至少一个轨道的长度的场，所述可重写场具有沿径向方向振荡的螺旋或同心导轨，所述ROM场具有螺旋或同心的凸凹坑行，并且至少 在信息未记录场的可重写场侧的部分场具有连续或间歇地沿径向振荡的螺旋或同心导轨的过渡场和ROM场的轨道间距To和凹槽和脊的轨道间距Tw 的可重写字段具有值To to Tw。

公开(公告)号：US6134214A

公开(公告)日：2000-10-17

申请号：US142910

申请日：1998-09-18

Applicant: Yuji Takagi ,  Takahiro Nagai ,  Yoshihisa Fukushima ,  Shunji Ohara ,  Isao Satoh

Inventor： Yuji Takagi ,  Takahiro Nagai ,  Yoshihisa Fukushima ,  Shunji Ohara ,  Isao Satoh

IPC: G11B7/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B7/24

CPC classification number: G11B20/1883 ,  G11B20/10 ,  G11B20/1258 ,  G11B2220/20

Abstract: In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.

Abstract translation: PCT No.PCT / JP97 / 00865 Sec。 371日期：1998年9月18日 102（e）1998年9月18日PCT PCT 1997年3月18日PCT公布。 公开号WO97 / 35309 日期1997年9月25日在盘形记录介质的记录和再现装置以及盘形记录介质的缺陷替换方法中，记录数据的再现是否良好是由扇区单元而不是产品代码单元 通过扇区单元执行缺陷扇区鉴别，并且当使用其中利用产品代码编码的错误检测和校正数据被分割并记录到多个扇区的记录格式时，仅交换地记录确定有缺陷的扇区。