公开(公告)号：EP1463054A2

公开(公告)日：2004-09-29

申请号：EP04251615.3

申请日：2004-03-19

申请人： Ricoh Company Ltd.

发明人： Noda, Eiji ,  Kitamura, Yuuji ,  Watanabe, Takeashi

IPC分类号： G11B20/00

CPC分类号： G11B20/00094 ,  G11B20/00086 ,  G11B20/00173

摘要： A disk authentication method, system, program, and a computer readable recording medium containing the program. A main controller of a host computer executes a data acquisition step for acquiring, from an optical disk, unique data that is recorded on an information track on the optical disk in accordance with a predetermined rule and an authentication step for authenticating the optical disk based on the unique data acquired in the data acquisition step. The disk authentication method thus prevents data illegally copied onto the optical disk from being used.

摘要翻译： 一种盘认证方法，系统，程序，以及计算机可读记录包含程序平台。 主计算机的主控制装置执行用于获取，从光盘上的数据采集步骤，唯一的数据没有被记录到信息轨道在光盘上在雅舞蹈预定的规则和认证步骤，用于认证基于所述光盘 在数据获取步骤的独特数据中获取。 盘认证方法从而防止非法复制到光盘被使用的数据。

公开(公告)号：EP1630796A2

公开(公告)日：2006-03-01

申请号：EP05025219.6

申请日：2002-09-25

申请人： Ricoh Company, Ltd.

发明人： Noda, Eiji

IPC分类号： G11B7/007

CPC分类号： G11B19/04 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24082 ,  G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

摘要： A method for determining an optimum CW erasure power for erasing information in a phase change information recording medium, comprising:

CW-erasing HF signals, which are recorded in the phase change information recording medium with a fixed writing power while changing an erasure power Pe;
measuring a pit level I11L or both the pit level I11L and a land level I11H of a remaining 11t signal of the HF signals;
determining the optimum CW erasure power Pecw such that at least one of the following relationships (1) and (2) is satisfied: Pe 1 + 0.05 × ΔPe ≤ Pecw ≤ Pe 2 - 0.05 × ΔPe
wherein Pe1 represents a Pe when d(I11L)/d(Pe) is maximized, Pe2 represents a Pe when d(I11L)/d(Pe) is minimized, and ΔPe represents Pe2 - Pe1; and I 11 L / I 11 H > 0.8

摘要翻译： 一种用于在最佳CW擦除功率确定性采矿方法用于在相变信息记录介质擦除信息，包括：CW擦除RF信号，该信号被记录在相变信息记录介质的固定写入功率，同时改变擦除功率Pe的， 测量凹坑电平I11L或两个凹坑电平I11L和RF信号的剩余11吨信号的国家水平I11H; 确定性挖掘最佳CW擦除功率Pecw搜索做了以下关系中的至少一个（1）和（2）满足如下：PE 1 +0.05× “PE‰¤Pecw‰¤PE 2 - 12:05×” PE worin PE 1 darstellt在PE 当d（I11L）/ D（PE）被最大化，PE2 darstellt一个Pe当D（I11L）/ D（PE）被最小化，和“PE darstellt PE2 - Pe1的; 和I 11 L / I 11 H> 0.8

公开(公告)号：EP1172810A2

公开(公告)日：2002-01-16

申请号：EP01122245.2

申请日：1998-08-14

申请人： Ricoh Company, Ltd.

发明人： Yamada, Katsuyuki ,  Nakamura, Yuki ,  Noda, Eiji ,  Hattori, Kyohji ,  Aihara, Kenichi ,  Ohmi, Fumiya ,  Kaneko, Yujiro

IPC分类号： G11B7/24

CPC分类号： G11B23/36 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/126 ,  G11B7/243 ,  G11B7/2535 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： An optical recording medium capable of recording and erasing information, includes a first dielectric layer, a recording layer, a second dielectric layer, a light reflection and heat dissipation layer, and an overcoat layer which are successively overlaid on a substrate, the recording layer including a phase-change recording material which includes as constituent elements Ag, In, Sb, Te, and N and/or O with the respective atomic % thereof being α, β, γ, δ and ε (the total atomic % of N and/or O), which are in the relationship of: 0

摘要翻译： 一种能够记录和擦除信息的光记录介质，包括依次叠置在衬底上的第一介质层，记录层，第二介质层，光反射和散热层以及外涂层，所述记录层包括 一种相变记录材料，其包括作为组成元素的Ag，In，Sb，Te和N和/或O，其各自的原子％为α，β，γ，δ和ε（N和/ 或0）的关系：0 <α≤6,3≤β≤15,50≤γ≤65,20≤δ≤35,0≤ε≤5，条件是α+β+γ+δ +ε= 100，（2）再结晶上限线速度在2.5〜5.0m / s的范围内。

公开(公告)号：EP1630796A3

公开(公告)日：2006-03-22

申请号：EP05025219.6

申请日：2002-09-25

申请人： Ricoh Company, Ltd.

发明人： Noda, Eiji

IPC分类号： G11B7/007 ,  G11B19/04 ,  G11B7/125 ,  G11B7/24 ,  G11B7/00

CPC分类号： G11B19/04 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24082 ,  G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

摘要： A method for determining an optimum CW erasure power for erasing information in a phase change information recording medium, comprising:

CW-erasing HF signals, which are recorded in the phase change information recording medium with a fixed writing power while changing an erasure power Pe;
measuring a pit level I11L or both the pit level I11L and a land level I11H of a remaining 11t signal of the HF signals;
determining the optimum CW erasure power Pecw such that at least one of the following relationships (1) and (2) is satisfied: Pe 1 + 0.05 × ΔPe ≤ Pecw ≤ Pe 2 - 0.05 × ΔPe
wherein Pe1 represents a Pe when d(I11L)/d(Pe) is maximized, Pe2 represents a Pe when d(I11L)/d(Pe) is minimized, and ΔPe represents Pe2 - Pe1; and I 11 L / I 11 H > 0.8

公开(公告)号：EP1172810B1

公开(公告)日：2005-03-02

申请号：EP01122245.2

申请日：1998-08-14

申请人： Ricoh Company, Ltd.

发明人： Yamada, Katsuyuki ,  Nakamura, Yuki ,  Noda, Eiji ,  Hattori, Kyohji ,  Aihara, Kenichi ,  Ohmi, Fumiya ,  Kaneko, Yujiro

IPC分类号： G11B7/24

CPC分类号： G11B23/36 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/126 ,  G11B7/243 ,  G11B7/2535 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： An optical recording medium capable of recording and erasing information, includes a first dielectric layer, a recording layer, a second dielectric layer, a light reflection and heat dissipation layer, and an overcoat layer which are successively overlaid on a substrate, the recording layer including a phase-change recording material which includes as constituent elements Ag, In, Sb, Te, and N and/or O with the respective atomic % thereof being alpha , beta , gamma , delta and epsilon (the total atomic % of N and/or O), which are in the relationship of: 0

公开(公告)号：EP1296315A3

公开(公告)日：2003-05-14

申请号：EP02021453.2

申请日：2002-09-25

申请人： Ricoh Company, Ltd.

发明人： Noda, Eiji

IPC分类号： G11B7/007 ,  G11B19/04 ,  G11B7/125 ,  G11B7/24 ,  G11B7/00

CPC分类号： G11B19/04 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/1267 ,  G11B7/24082 ,  G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

摘要： A phase change optical information recording medium including: a substrate; and a recording layer which is located overlying the substrate and in which marks are to be formed to store information, wherein the substrate includes plural sessions including a first session in which pits are formed and which includes a RAM region including a groove and a wobble signal, and a program memory area in which pits are formed and which includes position information of the first session and does not include disc ID information of the phase change optical information recording medium.

摘要翻译： 的相变化光信息记录介质，包括：衬底; 和位于覆盖所述基板，并且其中标记是将要形成用于存储信息，worin基板的记录层的所有包括具有第一会话的多个会话中这些凹坑被形成并且包括具有凹槽和摆动信号一个RAM区域 ，并在其中凹坑的程序存储区上形成，并且包括所述第一会话的位置信息，并且不包括所述相变型光信息记录介质的盘ID信息。

公开(公告)号：EP1014353B1

公开(公告)日：2008-07-16

申请号：EP99125824.5

申请日：1999-12-23

申请人： Ricoh Company, Ltd.

发明人： Hattori, Kyohji ,  Ohmi, Fumiya ,  Aihara, Kenichi ,  Yamada, Katsuyuki ,  Nakamura, Yuki ,  Noda, Eiji ,  Takahashi, Michihisa ,  Kaneko, Yujiro ,  Die, Yukio

IPC分类号： G11B7/26 ,  G11B7/125

CPC分类号： G11B7/268 ,  G11B7/127

公开(公告)号：EP1172810A3

公开(公告)日：2002-01-30

申请号：EP01122245.2

申请日：1998-08-14

申请人： Ricoh Company, Ltd.

发明人： Yamada, Katsuyuki ,  Nakamura, Yuki ,  Noda, Eiji ,  Hattori, Kyohji ,  Aihara, Kenichi ,  Ohmi, Fumiya ,  Kaneko, Yujiro

IPC分类号： G11B7/24

CPC分类号： G11B23/36 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/126 ,  G11B7/243 ,  G11B7/2535 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： An optical recording medium capable of recording and erasing information, includes a first dielectric layer, a recording layer, a second dielectric layer, a light reflection and heat dissipation layer, and an overcoat layer which are successively overlaid on a substrate, the recording layer including a phase-change recording material which includes as constituent elements Ag, In, Sb, Te, and N and/or O with the respective atomic % thereof being α, β, γ, δ and ε (the total atomic % of N and/or O), which are in the relationship of: 0

公开(公告)号：EP0898272A3

公开(公告)日：1999-05-19

申请号：EP98115351.3

申请日：1998-08-14

申请人： Ricoh Company, Ltd.

发明人： Yamada, Katsuyuki ,  Nakamura, Yuki ,  Noda, Eiji ,  Hattori, Kyohji ,  Aihara, Kenichi ,  Ohmi, Fumiya ,  Kaneko, Yujiro

IPC分类号： G11B7/24

CPC分类号： G11B23/36 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/126 ,  G11B7/243 ,  G11B7/2535 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： An optical recording medium capable of recording and erasing information, includes a first dielectric layer, a recording layer, a second dielectric layer, a light reflection and heat dissipation layer, and an overcoat layer which are successively overlaid on a substrate, the recording layer including a phase-change recording material which includes as constituent elements Ag, In, Sb, Te, and N and/or O with the respective atomic % thereof being α, β, γ, δ and ε (the total atomic % of N and/or O), which are in the relationship of: 0 α + β + γ + δ + ε = 100 , and (2) having a recrystallization upper-limit linear speed in a range of 2.5 to 5.0 m/s. A recording method and a reproduction method, using this optical recording medium, are proposed.

摘要翻译： 一种光学记录能够记录和擦除信息的介质，包括：第一电介质层，记录层，第二电介质层，光反射和热耗散层，和在罩面层，其被连续地覆盖在基材，记录层包括 其中包含作为构成元素的Ag，在，锑，Te和N和/或与其respectivement原子％为α，β，γ，δ和小量（N和/总原子％氧气的相变记录材料 或O），这是在0的关系<阿尔法≤6,3≤测试≤15，50≤伽马≤65，20≤增量≤35，0≤小量≤5，提供确实α+β+伽马+增量 +小量= 100，和（2）具有范围为2.5的重结晶上限线速度5.0米/秒。

公开(公告)号：EP0898272A2

公开(公告)日：1999-02-24

申请号：EP98115351.3

申请日：1998-08-14

申请人： Ricoh Company, Ltd.

发明人： Yamada, Katsuyuki ,  Nakamura, Yuki ,  Noda, Eiji ,  Hattori, Kyohji ,  Aihara, Kenichi ,  Ohmi, Fumiya ,  Kaneko, Yujiro

IPC分类号： G11B7/24

CPC分类号： G11B23/36 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/006 ,  G11B7/00736 ,  G11B7/126 ,  G11B7/243 ,  G11B7/2535 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： An optical recording medium capable of recording and erasing information, includes a first dielectric layer, a recording layer, a second dielectric layer, a light reflection and heat dissipation layer, and an overcoat layer which are successively overlaid on a substrate, the recording layer including a phase-change recording material which includes as constituent elements Ag, In, Sb, Te, and N and/or O with the respective atomic % thereof being α, β, γ, δ and ε (the total atomic % of N and/or O), which are in the relationship of: 0 α + β + γ + δ + ε = 100 , and (2) having a recrystallization upper-limit linear speed in a range of 2.5 to 5.0 m/s. A recording method and a reproduction method, using this optical recording medium, are proposed.

摘要翻译： 一种光学记录能够记录和擦除信息的介质，包括：第一电介质层，记录层，第二电介质层，光反射和热耗散层，和在罩面层，其被连续地覆盖在基材，记录层包括 其中包含作为构成元素的Ag，在，锑，Te和N和/或与其respectivement原子％为α，β，γ，δ和小量（N和/总原子％氧气的相变记录材料 或O），这是在0的关系<阿尔法≤6,3≤测试≤15，50≤伽马≤65，20≤增量≤35，0≤小量≤5，提供确实α+β+伽马+增量 +小量= 100，和（2）具有范围为2.5的重结晶上限线速度5.0米/秒。 一种记录方法，以及再现方法，使用该光学记录介质被提议。