公开(公告)号：US07280455B2

公开(公告)日：2007-10-09

申请号：US10500679

申请日：2003-02-05

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： G11B5/09

CPC分类号： G11B7/1267 ,  G11B7/0062 ,  G11B7/00736 ,  G11B20/10009

摘要： The recording strategy is optimized by determining a pulse response so as to minimize the difference between the reproduced waveform obtained by recording and reproducing the recording pulse signal wherein the record data is superposed with a high-frequency pulse and the waveform calculated by convolution of the record data and pulse responses. In this process, a single recording pulse waveform is recorded on a single track of the optical recording medium for three or more times, and sampled values zp,1, . . . , zp+3,1, . . . , . . . , zp,2, . . . , zp+3,2, . . . , zp,3, . . . , zp+3,3, . . . , of the reproduced waveforms reproduced therefrom are averaged in the order of the sampling to be used as the data for the reproducing waveform. Here, the first suffix for z represents the order of the sampling, whereas the second suffix represents the number of iterated times. The use of the averaged data can remove the influence by the random noise on the reproduced waveform.

摘要翻译： 通过确定脉冲响应来优化记录策略，以便最小化通过记录和再现记录脉冲信号获得的再现波形之间的差异，其中记录数据与高频脉冲重叠，并且通过记录卷积计算的波形 数据和脉冲响应。 在该过程中，将单个记录脉冲波形记录在光学记录介质的单个轨道上三次或更多次，并且采样值z≠p，1。 。 。 ，z + p + 3,1，...， 。 。 ，。 。 。 ，z

2，...， 。 。 ，z + p + 3,2。 。 。 ，z

3，...， 。 。 ，z + p + 3,3。 。 。 的再现波形的平均值按照要用作再现波形的数据的采样顺序进行平均。 这里，z的第一个后缀表示采样的顺序，而第二个后缀表示迭代次数。 平均数据的使用可以消除随机噪声对再生波形的影响。

公开(公告)号：US20060013114A1

公开(公告)日：2006-01-19

申请号：US11180699

申请日：2005-07-14

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/0062 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

摘要： An optical recording medium has a substrate, and a recording film whose status is changed by irradiating with a laser beam. The recording film includes (αTe)xβTe3 as a major component (x is a positive real number). The α is selected from the group consisting of Ge1-aSna and Ge1-aPba (a is a real number not less than 0 and not more than 1). The β is selected from the group consisting of Sb2-yIny, Sb2-y-zInyBiz and Bi2-yIny (y and z are real numbers more than 0 and less than 2; y+z is more than 0 and less than 2).

摘要翻译： 光记录介质具有基板和通过用激光束照射来改变状态的记录膜。 记录膜包括作为主要成分（x为正实数）的（αTe）xββ3 3。 该α选自Ge 1-a 1 a a a a a a和a a 1-a a b a b a a （a是不小于0且不超过1的实数）。 β选自Sb 2-y y，Sb 2，y y，y y， （y和z是大于0且小于2的实数; y + z更多 比0小于2）。

公开(公告)号：US06875488B2

公开(公告)日：2005-04-05

申请号：US10408441

申请日：2003-04-08

申请人： Tatsunori Ide ,  Eiji Kariyada ,  Shuichi Ohkubo

发明人： Tatsunori Ide ,  Eiji Kariyada ,  Shuichi Ohkubo

IPC分类号： G11B7/258 ,  B32B3/02 ,  C23C14/18 ,  G11B7/24 ,  G11B7/243

CPC分类号： G11B7/258 ,  C23C14/185 ,  G11B7/2403 ,  G11B7/24038 ,  G11B7/24062 ,  G11B7/243 ,  G11B7/2542 ,  Y10T428/21

摘要： An optical information recording medium is provided that records and reproduces information by means of laser beams irradiated from the side of the light transmission layer. The optical information recording medium provides a large capacity and a high degree of reliability and is inexpensive. At least a reflective film and a light transmission layer are formed, in the presented order, on the information recording surface of the support substrate. Information is recorded and/or reproduced by using the laser beam irradiated from the side of the light transmission layer. The reflective film, which is made of an alloy containing Ni and Cr as main components, has a thickness of 20 nm or more to 80 nm or less.

摘要翻译： 提供一种光学信息记录介质，其通过从光透射层侧照射的激光束记录和再现信息。 光信息记录介质提供大容量和高可靠性并且便宜。 在所述支撑基板的信息记录表面上，以所述顺序形成至少一反射膜和透光层。 通过使用从光透射层侧照射的激光束来记录和/或再现信息。 由含有Ni和Cr作为主要成分的合金制成的反射膜的厚度为20nm以上至80nm以下。

公开(公告)号：US6140011A

公开(公告)日：2000-10-31

申请号：US234500

申请日：1999-01-21

申请人： Shuichi Ohkubo

发明人： Shuichi Ohkubo

IPC分类号： B41M5/26 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/24 ,  G11B7/243 ,  G11B7/257 ,  G11B7/258 ,  G11B7/26

CPC分类号： G11B7/252 ,  G11B7/00557 ,  G11B7/24 ,  G11B7/2578 ,  G11B7/26 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B7/006 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/2595 ,  Y10S430/146

摘要： An optical information recording medium includes a transparent substrate, a first dielectric layer, a recording layer, a second dielectric layer, a reflecting layer, and a third dielectric layer. The substrate constitutes an optical disk for performing a mark edge recording operation. The first dielectric layer is formed on the substrate. The recording layer is formed on the first dielectric layer and is irradiated with a laser beam to undergo a reversible phase change between a crystalline state and an amorphous state, thereby recording and erasing information. The recorded information is reproduced by detecting a change in optical characteristics accompanying a phase change of the recording layer. The second dielectric layer is formed on the recording layer. The first and second dielectric layers protect the recording layer. The reflecting layer is formed on the second dielectric layer and has a predetermined transmittance. The third dielectric layer is formed on the reflecting layer and has a thickness set to control a relationship between an absorbance Ac of the recording layer in the crystalline state and an absorbance Aa in the amorphous state according to Ac>Aa. The dielectric layer is made of a dielectric material having a refractive index n larger than 1.5.

摘要翻译： 光学信息记录介质包括透明基板，第一介电层，记录层，第二介电层，反射层和第三介质层。 基板构成用于进行标记边缘记录操作的光盘。 第一介电层形成在基板上。 记录层形成在第一电介质层上，并且用激光束照射以在结晶状态和非晶状态之间经历可逆相变，从而记录和擦除信息。 通过检测伴随记录层的相位变化的光学特性的变化来再现所记录的信息。 第二电介质层形成在记录层上。 第一和第二电介质层保护记录层。 反射层形成在第二电介质层上并具有预定的透射率。 第三电介质层形成在反射层上，其厚度设定为根据Ac> Aa控制结晶状态的记录层的吸光度Ac与无定形态的吸光度Aa之间的关系。 电介质层由折射率n大于1.5的电介质材料制成。

公开(公告)号：US5906908A

公开(公告)日：1999-05-25

申请号：US108914

申请日：1998-07-01

申请人： Shuichi Ohkubo ,  Mitsuya Okada ,  Masaki Itou

发明人： Shuichi Ohkubo ,  Mitsuya Okada ,  Masaki Itou

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/24 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595 ,  G11B7/00

CPC分类号： G11B7/258 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/00557 ,  G11B7/24 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B7/2595 ,  Y10S430/146

摘要： The optical disk writing system disclosed is one in which a data written on an optical data writing medium is verified essentially simultaneously with the writing on the medium. The written data is verified by detecting a timing of the light irradiated on the medium and by measuring return light doses at a rise and a fall of the light irradiated on the medium and comparing the doses thereof with predetermined reference values. The medium used is one which uses a phase transition reversible between a crystal state and an amorphous state for writing/reading/erasing of data on a data writing film and includes, a first protective film, a phase transition type data writing film, a second protective film, a reflection film formed in this order on a transparent substrate. The thickness of the first protective film is set such that, of three reflectivities of the data writing film respectively in crystal, amorphous and melted states, the reflectivity in the crystal state and the reflectivity in the melted state are made different from each other, and the reflectivity in the amorphous state and the reflectivity in the melted state are made different from each other. A high speed writing operation can be carried out and an overwrite operation can be completed in one time disk rotation.

摘要翻译： 所公开的光盘写入系统是其中写入光学数据写入介质的数据基本上与介质上的写入同时被验证的系统。 通过检测照射在介质上的光的定时并通过在照射在介质上的光的上升和下降下测量返回光剂量并将其剂量与预定的参考值进行比较来验证书面数据。 使用的介质是使用在晶体状态和非晶状态之间可逆的相转换用于在数据写入膜上写入/读取/擦除数据的介质，并且包括第一保护膜，相变型数据写入膜，第二 保护膜，在透明基板上依次形成的反射膜。 第一保护膜的厚度被设定为使得数据写入膜的三个反射率分别处于晶体，非晶态和熔融状态，晶体状态的反射率和熔融状态下的反射率彼此不同， 使非晶态的反射率和熔融状态下的反射率彼此不同。 可以执行高速写入操作，并且可以在一次盘旋转中完成重写操作。

公开(公告)号：US5798993A

公开(公告)日：1998-08-25

申请号：US651301

申请日：1996-05-22

申请人： Shuichi Ohkubo ,  Mitsuya Okada ,  Masaki Itou

发明人： Shuichi Ohkubo ,  Mitsuya Okada ,  Masaki Itou

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/24 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595 ,  G11B7/00

CPC分类号： G11B7/258 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/00557 ,  G11B7/24 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B7/2595 ,  Y10S430/146

摘要： The optical disk writing system disclosed is one in which data written on an optical data writing medium is verified essentially simultaneously with writing on the medium. The written data is verified by detecting a timing of the light irradiated on the medium and by measuring return light doses at rise and fall of the light irradiated on the medium and comparing the doses thereof with predetermined reference values. The medium uses a phase transition reversible between a crystal state and an amorphous state for writing/reading/erasing of data on a data writing film, and includes a first protective film, a phase transition type data writing film, a second protective film, and a reflection film, formed in this order, on a transparent substrate. The thickness of the first protective film is set such that, of three reflectivities of the data writing film respectively in crystal, amorphous and melted states, the reflectivity in the crystal state and the reflectivity in the melted state are made different from each other, and the reflectivity in the amorphous state and the reflectivity in the melted state are made different from each other. A high speed writing operation can be carried out and an overwrite operation can be completed in one disk rotation time.

摘要翻译： 所公开的光盘写入系统是写入光学数据写入介质的数据基本上与介质上的写入同时被验证的。 通过检测照射在介质上的光的定时并通过测量照射在介质上的光的上升和下降的返回光剂量并将其与预定的参考值进行比较来验证写入的数据。 所述介质使用在晶体状态和非晶状态之间可逆的相转变用于在数据写入膜上写入/读取/擦除数据，并且包括第一保护膜，相变型数据写入膜，第二保护膜和 反射膜，依次形成在透明基板上。 第一保护膜的厚度被设定为使得数据写入膜的三个反射率分别处于晶体，非晶态和熔融状态，晶体状态的反射率和熔融状态下的反射率彼此不同， 使非晶态的反射率和熔融状态下的反射率彼此不同。 可以执行高速写入操作，并且可以在一个盘旋转时间内完成重写操作。

公开(公告)号：US5631895A

公开(公告)日：1997-05-20

申请号：US544452

申请日：1995-10-18

申请人： Mitsuya Okada ,  Tatsunori Ide ,  Shuichi Ohkubo

发明人： Mitsuya Okada ,  Tatsunori Ide ,  Shuichi Ohkubo

IPC分类号： B41M5/26 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/24 ,  G11B7/241 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257 ,  G11B7/258 ,  G11B7/00

CPC分类号： G11B7/252 ,  G11B7/006 ,  G11B7/24 ,  G11B7/258 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B7/00454 ,  G11B7/2433 ,  G11B7/2542

摘要： An optical information recording medium includes a transparent substrate, a first protection film, a recording film, a second protection film, a dielectric film, and a dielectric reflective film. The first protection film is formed on the transparent substrate. The recording film is formed on the first protection film to record and erase information by causing a reversible phase change between a crystalline state and an amorphous state upon being irradiated with a laser beam, and reproduce recorded information by detecting a change in optical nature accompanying the phase change in the recording film. The second protection film is formed on the recording film to protect the recording film together with the first protection film. The dielectric film is formed on the second protection film and has a refractive index lower than a refractive index of the transparent substrate. The dielectric reflective film is formed on the dielectric film and has a refractive index higher than the refractive index of the transparent substrate.

摘要翻译： 光信息记录介质包括透明基板，第一保护膜，记录膜，第二保护膜，电介质膜和电介质反射膜。 第一保护膜形成在透明基板上。 记录膜形成在第一保护膜上以通过在用激光束照射之后引起结晶状态和非晶状态之间的可逆相变来记录和擦除信息，并且通过检测随着所述激光束的光学性质的变化来再现记录信息 记录膜中的相变。 第二保护膜形成在记录膜上，以与第一保护膜一起保护记录膜。 电介质膜形成在第二保护膜上，折射率低于透明基板的折射率。 介电反射膜形成在电介质膜上，折射率高于透明基板的折射率。