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：US07742374B2

公开(公告)日：2010-06-22

申请号：US11167291

申请日：2005-06-28

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B2007/0013

摘要： A method of recording data on a double-layer optical recording medium having a recording layer with high light transmittance is provided. A laser beam is modulated to emit a pulse series of laser including a write pulse of a write power and a cooling pulse of a bottom power, so as to encode and write data to be recorded as recording marks of a length nT along a track of the recording layer, where n is an integer and T is one clock cycle. An nT recording mark is formed using (n−1) write pulse(s), and when forming a recording mark of 4 T or longer, a cooling pulse with a pulse width of 0.8 T to 2 T is inserted before the last write pulse. Recording marks are thereby accurately formed without heat interference between consecutive recording marks and cross erase between recording marks of adjacent tracks.

摘要翻译： 提供了一种在具有高透光性的记录层的双层光学记录介质上记录数据的方法。 激光束被调制以发射包括写入功率的写入脉冲和底部功率的冷却脉冲的脉冲序列，以便将要记录的数据编码和写入作为长度为nT的记录标记沿着 记录层，其中n是整数，T是一个时钟周期。 使用（n-1）个写入脉冲形成nT记录标记，当形成4T以上的记录标记时，在最后写入脉冲之前插入脉冲宽度为0.8T〜2T的冷却脉冲 。 因此，可以精确地形成记录标记，而不会在连续记录标记之间产生热干扰，并且在相邻轨道的记录标记之间进行交叉擦除。

公开(公告)号：US20060067197A1

公开(公告)日：2006-03-30

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：US20050286383A1

公开(公告)日：2005-12-29

申请号：US11167291

申请日：2005-06-28

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

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

IPC分类号： G11B7/00 ,  G11B7/0045

CPC分类号： G11B7/00456 ,  G11B2007/0013

摘要： A method of recording data on a double-layer optical recording medium having a recording layer with high light transmittance is provided. A laser beam is modulated to emit a pulse series of laser including a write pulse of a write power and a cooling pulse of a bottom power, so as to encode and write data to be recorded as recording marks of a length nT along a track of the recording layer, where n is an integer and T is one clock cycle. An nT recording mark is formed using (n-1) write pulse(s), and when forming a recording mark of 4 T or longer, a cooling pulse with a pulse width of 0.8 T to 2 T is inserted before the last write pulse. Recording marks are thereby accurately formed without heat interference between consecutive recording marks and cross erase between recording marks of adjacent tracks.

摘要翻译： 提供了一种在具有高透光性的记录层的双层光学记录介质上记录数据的方法。 激光束被调制以发射包括写入功率的写入脉冲和底部功率的冷却脉冲的脉冲序列，以便将要记录的数据编码和写入作为长度为nT的记录标记沿着 记录层，其中n是整数，T是一个时钟周期。 使用（n-1）个写入脉冲形成nT记录标记，当形成4T以上的记录标记时，在最后写入脉冲之前插入脉冲宽度为0.8T〜2T的冷却脉冲 。 因此，可以精确地形成记录标记，而不会在连续记录标记之间产生热干扰，并且在相邻轨道的记录标记之间

公开(公告)号：US06618349B2

公开(公告)日：2003-09-09

申请号：US09788589

申请日：2001-02-21

申请人： Hiroyasu Inoue ,  Hajime Utsunomiya ,  Hiroshi Shingai ,  Tetsuro Mizushima ,  Tatsuya Kato

发明人： Hiroyasu Inoue ,  Hajime Utsunomiya ,  Hiroshi Shingai ,  Tetsuro Mizushima ,  Tatsuya Kato

IPC分类号： G11B700

CPC分类号： G11B7/007

摘要： In an optical recording medium of land/groove recording system, a sufficient tilt margin and a reduced cross talk are realized simultaneously with a sufficiently increased output. Provided is an optical recording medium having a light-transmitting substrate formed with grooves wherein the grooves and the region between adjacent grooves are used for the recording track, and a reading beam is irradiated through the light-transmitting substrate, wherein the relations: −12.6T+15.6≦x≦25T−3.8, and 0.55≦T≦0.68 are satisfied when the reading beam has a wavelength of &lgr;, the light-transmitting substrate has a refractive index at the wavelength &lgr; of n, the reading optical system has a numerical aperture of NA, recording track pitch is PT, the groove has a depth of &lgr;/(x·n), and T is PT/(&lgr;/NA).

摘要翻译： 在平台/凹槽记录系统的光记录介质中，充分提高输出同时实现足够的倾斜余量和减少的串扰。 提供了一种光记录介质，其具有形成有沟槽的光透射基板，其中沟槽和相邻凹槽之间的区域用于记录轨道，并且通过透光基板照射读取光束，其中满足关系： 当读取光束具有lambd的波长时，透光衬底的折射率为n的波长，读取光学系统具有NA的数值孔径，记录轨道间距为PT，槽具有lambd的深度 /（xn），T为PT /（lambd / NA）。

公开(公告)号：US07227826B2

公开(公告)日：2007-06-05

申请号：US10503954

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

IPC分类号： G11B3/74

CPC分类号： G11B7/24038 ,  G11B7/006 ,  G11B7/0062 ,  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 whereby a sufficiently high erasing efficiency can be ensured when data recorded in any one of the information recording layers are directly overwritten. 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 via a light incidence plane 13a. In the case where information is to be recorded in the optical recording medium 10, information is recorded in the L0 layer 20 using an off-pulse recording format and information is recorded in the L1 layer 30 using an on-pulse recording format. As a result, even in the case of directly overwriting data recorded in either of the L0 layer 20 or the L1 layer 30, a sufficiently high erasing efficiency can be ensured.

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，从而当记录在任一信息中的数据时可以确保足够高的擦除效率 记录层被直接覆盖。 在根据本发明的信息记录方法中，通过经由光入射平面13a将投射激光束的信息记录在具有至少层叠的L 0层20和L 1层30的光学记录介质10中。 在要记录在光学记录介质10中的信息的情况下，使用截止脉冲记录格式将信息记录在L 0层20中，并且使用脉冲记录格式将信息记录在L 1层30中。 结果，即使在直接覆盖记录在L 0层20或L1层30中的任何一个的情况下，也能够确保足够高的擦除效率。

公开(公告)号：US07408860B2

公开(公告)日：2008-08-05

申请号：US10505194

申请日：2003-02-19

申请人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

IPC分类号： G11B5/09

CPC分类号： G11B7/0062 ,  G11B7/00736 ,  G11B7/24038 ,  G11B7/26 ,  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, a plurality of recording marks selected from a group consisting of several types of recording marks with different lengths are formed in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam via a light incidence plane. In the case of forming at least one recording mark among the several types of recording marks in L0 layer 20, the recording powers of a top pulse Ttop and a last pulse Tlp of the laser beam are set to Pw0′ lower than the recording power Pw0 of a multi-pulse Tmp thereof.

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，在具有至少堆叠的L 0层20和L 1的光学记录介质10中形成从由几种不同长度的记录标记组成的组中选择的多个记录标记 层30通过经由光入射面投射激光束。 在L 0层20中的几种类型的记录标记中形成至少一个记录标记的情况下，顶部脉冲T顶部和最后脉冲T 1 / 激光束的SUB>被设定为低于多脉冲T mp的记录功率Pw 0的Pw 0'。

公开(公告)号：US07298682B2

公开(公告)日：2007-11-20

申请号：US10504441

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/006 ,  G11B7/00718 ,  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 whose power is modulated thereonto 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 the wavelength of the laser beam and NA is the numerical aperture of an objective lens for converging the laser beam, and a pulse width Ttop0 of a top pulse of the laser beam when information is to be recorded in the L0 layer 20 is set to be shorter than a pulse width Ttop1 of a top pulse of the laser beam 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层叠的L 0层20和L 1层30的光学记录介质10中，通过投射其功率被调制在其上的激光束经由光入射面13 一个。 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是用于会聚激光束的物镜的数值孔径，脉冲宽度T 当信息要被记录在L 0层20中时，激光束的顶部脉冲的顶部top0 被设置为短于顶部脉冲的脉冲宽度T top1 < 当信息要记录在L 1层30中时，激光束的位置。

公开(公告)号：US20050163011A1

公开(公告)日：2005-07-28

申请号：US10504441

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/007 ,  G11B5/09

CPC分类号： G11B7/0062 ,  G11B7/006 ,  G11B7/00718 ,  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 whose power is modulated thereonto 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 the wavelength of the laser beam and NA is the numerical aperture of an objective lens for converging the laser beam, and a pulse width Ttop0 of a top pulse of the laser beam when information is to be recorded in the L0 layer 20 is set to be shorter than a pulse width Ttop1 of a top pulse of the laser beam 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，通过投影其功率被调制在其上的激光束经由光入射平面13a。 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是用于会聚激光束的物镜的数值孔径，脉冲宽度T 当信息要被记录在L0层20中时，激光束的顶部脉冲的顶部top0 被设置为短于顶部脉冲的脉冲宽度T Top1 < 信息将被记录在L1层30中时的激光束。

公开(公告)号：US20050088942A1

公开(公告)日：2005-04-28

申请号：US10505194

申请日：2003-02-19

申请人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

IPC分类号： G11B7/0045 ,  G11B3/00 ,  G11B7/00 ,  G11B7/006 ,  G11B7/007 ,  G11B7/125 ,  G11B7/24 ,  G11B7/26

CPC分类号： G11B7/0062 ,  G11B7/00736 ,  G11B7/24038 ,  G11B7/26 ,  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, a plurality of recording marks selected from a group consisting of several types of recording marks with different lengths are formed in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam via a light incidence plane. In the case of forming at least one recording mark among the several types of recording marks in L0 layer 20, the recording powers of a top pulse Ttop and a last pulse Tlp of the laser beam are set to Pw0′ lower than the recording power Pw0 of a multi-pulse Tmp thereof.

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，在至少具有堆叠的L0层20和L1层30的光学记录介质10中形成多个从具有不同长度的几种类型的记录标记组成的组中选择的记录标记 通过经由光入射面投射激光束。 在L0层20中的几种类型的记录标记中形成至少一个记录标记的情况下，顶部脉冲T顶部的记录功率和最后一个脉冲T L1 / >的激光束被设定为低于其多脉冲T mp的记录功率Pw0的Pw0'。