公开(公告)号：US07872787B2

公开(公告)日：2011-01-18

申请号：US12461247

申请日：2009-08-05

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G03H1/26

CPC分类号： G11B7/0065 ,  G03H1/265 ,  G03H1/28 ,  G11B7/083 ,  G11B7/128

摘要： A holographic multiplex recording method which can keep a recording data rate constant and equalize nonuniformity in recording due to vibrations or the like, and a holographic recording apparatus and a holographic recording medium, which employ the method. In a process of multiplex-recording information, the time of exposure to a laser beam per data page is kept constant, and the laser output power of the laser beam is increased in accordance with a decrease in recording sensitivity of the holographic recording medium.

摘要翻译： 一种全息多路复用记录方法，其可以保持记录数据速率恒定并且使由振动等引起的记录不均匀性，以及使用该方法的全息记录装置和全息记录介质。 在多路记录信息的处理中，每个数据页面的激光束的曝光时间保持恒定，激光束的激光输出功率随着全息记录介质的记录灵敏度的降低而增加。

公开(公告)号：US20100014137A1

公开(公告)日：2010-01-21

申请号：US12461247

申请日：2009-08-05

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G03H1/26

CPC分类号： G11B7/0065 ,  G03H1/265 ,  G03H1/28 ,  G11B7/083 ,  G11B7/128

摘要： A holographic multiplex recording method which can keep a recording data rate constant and equalize nonuniformity in recording due to vibrations or the like, and a holographic recording apparatus and a holographic recording medium, which employ the method. In a process of multiplex-recording information, the time of exposure to a laser beam per data page is kept constant, and the laser output power of the laser beam is increased in accordance with a decrease in recording sensitivity of the holographic recording medium.

摘要翻译： 一种全息多路复用记录方法，其可以保持记录数据速率恒定并且使由振动等引起的记录不均匀性，以及使用该方法的全息记录装置和全息记录介质。 在多路记录信息的处理中，每个数据页面的激光束的曝光时间保持恒定，激光束的激光输出功率随着全息记录介质的记录灵敏度的降低而增加。

公开(公告)号：US07580340B2

公开(公告)日：2009-08-25

申请号：US11287323

申请日：2005-11-28

申请人： Hiroshi Shingai ,  Jiro Yoshinari ,  Hideaki Miura

发明人： Hiroshi Shingai ,  Jiro Yoshinari ,  Hideaki Miura

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/00375 ,  G11B7/006 ,  G11B7/259 ,  G11B2007/24312 ,  G11B2007/24314

摘要： An optical recording medium and a method for testing that optical recording medium are provided, which can prevent degradation of a reproduction signal in the case where the optical recording medium is stored at a high temperature for a long time, which enables stable recording and reproduction of data before and after the high-temperature storage, and which can achieve high-speed recording and increase of recording density. In the optical recording medium, a reproduction signal output of a recording mark after high-temperature storage that is formed in a recording layer after the optical recording medium is stored at a storage temperature t in a range from 60° C. to 90° C. for at least 50−(4/3)(t−60) hours is 0.9 times or more a reproduction signal output of a recording mark before the high-temperature storage that has the same bit length as the recording mark after the high-temperature storage and is formed before the above high-temperature storage.

摘要翻译： 提供一种用于测试该光记录介质的光学记录介质和方法，其可以防止光记录介质长时间在高温下存储的情况下的再现信号的劣化，这使得能够稳定地记录和再现 数据在高温存储之前和之后，并且可以实现高速记录和增加记录密度。 在光记录介质中，在光记录介质在形成于光记录介质的存储温度t在60℃至90℃的范围内的高温储存之后的记录标记的再现信号输出 对于至少50-（4/3）（t-60）小时，在高温存储之前的记录标记的再现信号输出是与高速存储器之后的记录标记相同的位长度的0.9倍或更多， 在上述高温储存之前形成。

公开(公告)号：US07485356B2

公开(公告)日：2009-02-03

申请号：US11181886

申请日：2005-07-15

申请人： Hiroshi Shingai ,  Hiroshi Chihara ,  Hideki Hirata ,  Hideaki Miura

发明人： Hiroshi Shingai ,  Hiroshi Chihara ,  Hideki Hirata ,  Hideaki Miura

IPC分类号： B32B3/02

CPC分类号： G11B7/243 ,  G11B7/24038 ,  G11B2007/24312 ,  G11B2007/24314

摘要： An optical recording medium includes an information layer having a recording film. The recording film contains Sb of 79 atomic % to 95 atomic % and Ge of 5 atomic % to 21 atomic % as main components, and is formed of a phase change material which does not contain the elements in the sixteenth group of the periodic table.

摘要翻译： 光记录介质包括具有记录膜的信息层。 记录膜包含79原子％至95原子％的Sb和5原子％至21原子％的Ge作为主要成分，并且由不含元素周期表第十六组中的元素的相变材料形成。

公开(公告)号：US07471606B2

公开(公告)日：2008-12-30

申请号：US11209826

申请日：2005-08-24

申请人： Tetsuro Mizushima ,  Hideaki Miura ,  Tatsuya Kato ,  Hironori Kakiuchi ,  Hiroshi Shingai ,  Jiro Yoshinari

发明人： Tetsuro Mizushima ,  Hideaki Miura ,  Tatsuya Kato ,  Hironori Kakiuchi ,  Hiroshi Shingai ,  Jiro Yoshinari

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/24038 ,  G11B2007/0013

摘要： An information recording method enables the precise formation of a recording mark on a recording layer having a high light transmittance such as an L1 layer of a double-layered optical recording medium. The information recording method uses the following recording strategy. A laser beam is pulse-modulated so as to create a pulse series including a write pulse of a recording power and a cooling pulse of a base power. Data to be recorded is modulated to have a length of a recording mark along a track of the recording layer. At the same time, the length of the recording mark is made to correspond to an integral multiple nT of T where T is one clock cycle. An nT recording mark corresponding to nT is recorded by using the same number of write pulses and cooling pulses when n is 4 or larger. Moreover, an average width AveTc for a single cooling pulse width Tc is set to satisfy: 1.0

摘要翻译： 信息记录方法能够在具有高透光率的记录层上精确地形成记录标记，例如双层光记录介质的L1层。 信息记录方法使用以下记录策略。 激光束被脉冲调制，以产生包括记录功率的写入脉冲和基本功率的冷却脉冲的脉冲序列。 要记录的数据被调制成具有沿着记录层的轨道的记录标记的长度。 同时，使记录标记的长度对应于T的整数倍nT，其中T是一个时钟周期。 当n为4以上时，通过使用相同数量的写入脉冲和冷却脉冲来记录对应于nT的nT记录标记。 此外，将单个冷却脉冲宽度Tc的平均宽度AveTc设定为满足：1.0

公开(公告)号：US20070206448A1

公开(公告)日：2007-09-06

申请号：US11587042

申请日：2005-04-01

申请人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

发明人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

IPC分类号： H04B1/20

CPC分类号： G03H1/0252 ,  G03H1/02 ,  G03H1/0256 ,  G03H1/0486 ,  G03H1/265 ,  G03H2001/026 ,  G03H2001/0432 ,  G03H2001/186 ,  G11B7/0065 ,  G11B7/2403 ,  G11B7/24044

摘要： A holographic recording medium 10 is configured to have a recording layer 12 on which information can be recorded as holograms; and first and second heat generating layers 14A and 14B provided in a pair so as to sandwich the recording layer 12. Then, the first and second heat generating layers 14A and 14B are allowed to generate heat by being irradiated with a heat generating laser beam LB3 having a wavelength that is different from that of a signal beam LB1 or a reference beam LB2 for reproducing or recording information. The holographic recording medium and a method for recording and reproducing the same, and a recording and reproducing apparatus can compensate for shrinkage of the recording layer due to recording or variations in temperature, thereby allowing for reproduction of the holograms under optimum conditions.

摘要翻译： 全息记录介质10被配置为具有其上可以记录信息作为全息图的记录层12; 以及一对设置成夹持记录层12的第一和第二发热层14A和14B。 然后，通过照射具有与信号束LB 1或参考光束LB 2的波长不同的波长的发热激光束LB 3，允许第一和第二发热层14A和14B产生热量 用于再现或记录信息。 全息记录介质及其记录和再现方法，以及记录和再现装置可以补偿由于记录或温度变化引起的记录层的收缩，从而允许在最佳条件下再现全息图。

公开(公告)号：US20060018241A1

公开(公告)日：2006-01-26

申请号：US11181886

申请日：2005-07-15

申请人： Hiroshi Shingai ,  Hiroshi Chihara ,  Hideki Hirata ,  Hideaki Miura

发明人： Hiroshi Shingai ,  Hiroshi Chihara ,  Hideki Hirata ,  Hideaki Miura

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/24038 ,  G11B2007/24312 ,  G11B2007/24314

摘要： An optical recording medium includes an information layer having a recording film. The recording film contains Sb of 79 atomic % to 95 atomic % and Ge of 5 atomic % to 21 atomic % as main components, and is formed of a phase change material which does not contain the elements in the sixteenth group of the periodic table.

公开(公告)号：US20050259552A1

公开(公告)日：2005-11-24

申请号：US10630476

申请日：2003-07-30

申请人： Hideaki Miura ,  Jiro Yoshinari ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Jiro Yoshinari ,  Tetsuro Mizushima

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/20 ,  G11B7/26 ,  G11B11/10

CPC分类号： G11B7/268 ,  G11B7/24038 ,  G11B7/266

摘要： A method for initializing recording films of an optical recording medium includes two recording layers each including a recording film and which is formed so that a transparent intermediate layer is interposed between each adjacent pair of the recording layers, by projecting a laser beam whose power can be controlled within a predetermined range onto the recording films and simultaneously crystallizing and initializing the recording films, the method for initializing recording films of an optical recording medium including steps of setting a power of the laser beam and a position of a focus of the laser beam so that energy of the laser beam projected onto each of the recording films is equal to or higher than a minimum initialization energy which can crystallize and initialize the recording film irradiated with the laser beam, and projecting the laser beam onto the recording films of the optical recording medium. According to this method, it is possible to efficiently simultaneously crystallize and initialize recording films of the two recording layers of an optical recording medium with an apparatus of simple structure.

摘要翻译： 用于初始化光记录介质的记录膜的方法包括两个记录层，每个记录层包括记录膜，并且其形成为透明中间层插入在相邻的一对记录层之间，通过投射能量可以是 控制在记录膜上的预定范围内并同时结晶和初始化记录膜，用于初始化光记录介质的记录膜的方法包括设置激光束的功率和激光束的焦点位置的步骤 投影到每个记录膜上的激光束的能量等于或高于可以结晶并初始化用激光束照射的记录膜的最小初始化能量，并将激光束投影到光学记录的记录膜上 中。 根据该方法，可以通过结构简单的装置有效地同时结晶和初始化光记录介质的两个记录层的记录膜。

公开(公告)号：US20050089798A1

公开(公告)日：2005-04-28

申请号：US10503952

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato

发明人： Hideaki Miura ,  Tatsuya Kato

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/20 ,  G11B7/24 ,  G11B3/74

CPC分类号： G11B7/00454 ,  G11B7/0062 ,  G11B7/24038 ,  G11B2007/0013

摘要： It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers, which can form recording marks having good shapes. In the information recording method according to the present invention, information is recorded in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam thereonto whose power is modulated between a plurality of powers including at least a recording power (Pw) and an erasing power (Pe) via a light incidence plane 13a. When information is recorded, λ/NA is set to be equal to or shorter than 700 nm, where λ is a wavelength of the laser beam and NA is a numerical aperture (NA) of an objective lens, and a ratio (Pe/Pw) of the recording power and the erasing power when information is to be recorded in the L0 layer 20 is set to be smaller than that when information is to be recorded in the L1 layer 30.

摘要翻译： 本发明的目的是提供一种用于在具有多个信息记录层的数据可重写型光学记录介质中记录信息的信息记录方法，其可以形成具有良好形状的记录标记。 在根据本发明的信息记录方法中，信息被记录在具有至少堆叠的L0层20和L1层30的光学记录介质10中，通过将激光束投射到其上被调制的多个功率至少包括至少 经由光入射面13a的记录功率（Pw）和擦除功率（Pe）。 当记录信息时，λ/ NA设定为等于或小于700nm，其中λ是激光束的波长，NA是物镜的数值孔径（NA），并且比率（Pe / Pw ）和将信息记录在L0层20中时的擦除功率设置为小于在L1层30中记录信息时的擦除功率。

公开(公告)号：US07796312B2

公开(公告)日：2010-09-14

申请号：US10584410

申请日：2004-12-21

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G03H1/04 ,  G03H1/10 ,  G02B5/32

CPC分类号： G11B7/1275 ,  G03H1/16 ,  G03H1/2645 ,  G03H1/28 ,  G03H2001/2655 ,  G03H2210/22 ,  G03H2225/24 ,  G06K19/06037 ,  G06K2019/0629 ,  G11B7/0065 ,  G11B7/128

摘要： A holographic recording apparatus 10 realizes multilevel gray-scale recording by: controlling a reflection type spatial light modulator (DMD 18D) via a control unit 24 so that an object beam in an object optical system 18 is reflected in an exposure direction so as to be incident on a holographic recording medium 16 or in a non-exposure direction so as not to be incident thereon selectively pixel by pixel in accordance with a data page to be recorded; and making (N+1) levels of gradation exposure with a single exposure time t1 given by dividing t0 by N, where t0 is an exposure time necessary for rendering a single pixel of the data page as an ON pixel, and N is an integer of not less than 2.

摘要翻译： 全息记录装置10通过以下方式实现多级灰度记录：通过控制单元24控制反射型空间光调制器（DMD 18D），使得物体光学系统18中的物体光束以曝光方向反射，以便 在全息记录介质16上或非曝光方向入射，以便不会根据要记录的数据页被逐个入射到其上; 并且通过将t0除以N而给出的单个曝光时间t1来进行（N + 1）级别曝光，其中t0是将数据页的单个像素渲染为ON像素所需的曝光时间，N是整数 不低于2。