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51. 发明申请

US20060013089A1 Optical recording medium 失效
公开(公告)号：US20060013089A1
公开(公告)日：2006-01-19
申请号：US10519693
申请日：2003-06-27
申请人： Tatsuhiro Kobayashi , Tatsuya Kato , Hiroyasu Inoue
发明人： Tatsuhiro Kobayashi , Tatsuya Kato , Hiroyasu Inoue
IPC分类号： G11B7/12
CPC分类号： G11B7/1267 , G11B7/0045
摘要： It is an object of the present invention to provide a method for determining the power of a laser beam which can determine the recording power of the laser beam so that jitter of a reproduced signal obtained by reproducing data recorded in a data rewritable type optical recording medium can be controlled within a tolerance even when cross erasing of data occurs and that the reproduced signal having the highest level can be obtained. The method for determining the power of a laser beam according to the present invention includes the steps of recording a first test signal in the data rewritable type optical recording medium while varying a level of the recording power of the laser beam, reproducing the first test signal recorded in the data rewritable type optical recording medium, measuring, for each of the levels of the recording power of the laser beam, an amplitude A0 of a reproduced signal obtained by reproducing the first test signal before the first test signal is influenced by cross erasing of data, an amplitude A1 and jitter J1 of a reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data and an amplitude As and jitter Js of a reproduced signal obtained by reproducing the first test signal after an influence of cross erasing of data on the first test signal was saturated, calculating a first parameter for each of the levels of the recording power of the laser beam as a function of the difference between the amplitude A0 of the reproduced signal obtained by reproducing the first test signal before the first test signal is influenced by cross erasing of data and the amplitude A1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data, calculating a second parameter for each of the levels of the recording power of the laser beam as a function of the difference between the amplitude A1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data and the amplitude As of the reproduced signal obtained by reproducing the first test signal after the influence of cross erasing of data on the first test signal was saturated, calculating a third parameter for each of the levels of the recording power of the laser beam as a function of the difference between the jitter Js of the reproduced signal obtained by reproducing the first test signal after the influence of cross erasing of data on the first test signal was saturated and the jitter J1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data, obtaining a value of the first parameter corresponding to a value of the second parameter when the third parameter is equal to a tolerance, thereby determining a critical parameter, recording a second test signal in the data rewritable type optical recording medium while varying a level of the recording power of the laser beam, judging whether or not signal characteristics of a reproduced signal obtained by reproducing the second test signal recorded in the data rewritable type optical recording medium satisfy reference conditions, measuring, for each of the levels of the recording power of the laser beam, when the signal characteristics of the reproduced signal obtained by reproducing the second test signal recorded in the data rewritable type optical recording medium satisfy the reference conditions, an amplitude AA0 of the reproduced signal obtained by reproducing the second test signal before the second test signal is influenced by cross erasing of data and an amplitude AA1 of the reproduced signal obtained by reproducing the second test signal after the first test signal was once influenced by cross erasing of data, calculating a fourth parameter based on the amplitudes AA0 and AA1 of the reproduced signals obtained by reproducing the second test signals as a function of the difference between the amplitude AA0 of the reproduced signal obtained by reproducing the second test signal before the second test signal is influenced by cross erasing of data and the amplitude AA1 of the reproduced signal obtained by reproducing the second test signal after the first test signal was once influenced by cross erasing of data, comparing the critical parameter and the fourth parameter, and determining the recording power of the laser beam at which the fourth parameter was obtained as an optimum recording power when the fourth parameter is equal to or lower than the critical parameter.

52. 发明授权

US07943223B2 Optical recording medium and recording film material 有权
标题翻译：光记录介质和记录膜材料
公开(公告)号：US07943223B2
公开(公告)日：2011-05-17
申请号：US12076070
申请日：2008-03-13
申请人： Hiroshi Shingai , Tatsuya Kato , Masanori Kosuda , Hiroshi Takasaki , Hideki Hirata , Jajime Utsunomiya
发明人： Hiroshi Shingai , Tatsuya Kato , Masanori Kosuda , Hiroshi Takasaki , Hideki Hirata , Jajime Utsunomiya
IPC分类号： B32B3/02
CPC分类号： G11B7/2433 , G11B7/24038 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/25706 , G11B2007/25715 , Y10T428/21
摘要： An optical recording medium is provided which includes two or more information layers in which an Sb-based eutectic material is used as the material for a recording film of a translucent information layer. There is also provided a recording film material for the optical recording medium. The translucent information layer is configured to include a recording film formed of a phase change material SbxGeyInz containing Sb, Ge, and In in an atomic ratio of x:y:z, where 5≦y≦15 and 4≦z≦15 are satisfied. The recording film further includes Te in an atomic ratio of a, provided that x+y+z+a=100 and 4≦a≦15 are satisfied. An interface layer formed of a ZrO2—Cr2O3 film having a thickness of 2 nm or more and 10 nm or less is provided on the laser beam incident side of the recording film. When the compositional ratio of the ZrO2—Cr2O3 film is given by ZrO2:Cr2O3=B:C (mol %), 20≦B≦90, 10≦C≦80, and B+C=100 are satisfied.
摘要翻译：提供了一种光记录介质，其包括其中使用Sb基共晶材料作为半透明信息层的记录膜的材料的两个或更多个信息层。还提供了一种用于光学记录介质的记录膜材料。半透明信息层被配置为包括以包含Sb，Ge和In的相变材料SbxGeyInz形成的记录膜，其原子比为x：y：z，其中满足5＆lt; 1; y＆nlE; 15和4＆nlE; z＆nlE; 15 。如果满足x + y + z + a = 100和4＆nlE; a＆nlE; 15，记录膜还包括原子比α的Te。在记录膜的激光入射侧设置由厚度为2nm以上且10nm以下的ZrO 2 -Cr 2 O 3膜形成的界面层。当ZrO 2 -Cr 2 O 3膜的组成比由ZrO 2：Cr 2 O 3 = B:C（摩尔％）给出时，满足20＆lt; NlE; B＆NlE; 90,10＆amp; NlE; C＆NlE; 80和B + C = 100。

53. 发明授权

US07224663B2 Optical recording medium, method of recording information to an optical recording medium, and information recording apparatus 有权
标题翻译：光记录媒体，向光学记录媒体记录信息的方法以及信息记录装置
公开(公告)号：US07224663B2
公开(公告)日：2007-05-29
申请号：US10489118
申请日：2002-09-05
申请人： Tatsuya Kato , Hiroshi Shingai , Hideki Hirata
发明人： Tatsuya Kato , Hiroshi Shingai , Hideki Hirata
IPC分类号： G11B7/24 , G11B5/09
CPC分类号： G11B7/126 , G11B7/00 , G11B7/0045 , G11B7/0062
摘要： It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates.The optical recording medium according to the present invention comprises a method of recording information to an optical recording medium where information is recorded by forming a plurality of recording marks selected from a group consisting of several types of recording marks each with different lengths, wherein: the cooling interval when forming the shortest recording mark contained within said group is set shorter than the cooling interval when forming the other recording marks contained in the group. Thus, even in the case that one clock period (T) is shortened to achieve high transfer rates, a high erase efficiency can be maintained when overwriting data.
摘要翻译：本发明的目的是提供一种将信息记录到适于实现高数据传输速率的光记录介质上的方法。根据本发明的光记录介质包括一种通过形成从由具有不同长度的几种类型的记录标记组成的组中形成的多个记录标记来记录信息到光记录介质的方法，其中：当形成包含在该组中的最短记录标记时的冷却间隔被设定为比形成组中包含的其它记录标记时的冷却间隔短。因此，即使在一个时钟周期（T）被缩短以实现高传输速率的情况下，当重写数据时也可以保持高的擦除效率。

54. 发明授权

US07082090B2 Method of recording information to an optical recording medium, information recording apparatus, and optical recording medium 有权
标题翻译：将信息记录到光学记录介质，信息记录装置和光学记录介质的方法
公开(公告)号：US07082090B2
公开(公告)日：2006-07-25
申请号：US10488981
申请日：2002-09-05
申请人： Tatsuya Kato , Hiroshi Shingai , Hideki Hirata
发明人： Tatsuya Kato , Hiroshi Shingai , Hideki Hirata
IPC分类号： G11B5/09 , G11B7/00
CPC分类号： G11B7/0062
摘要： It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates.The optical recording medium according to the present invention comprises a method of recording information to an optical recording medium where information is recorded by forming on the optical recording medium a plurality of recording marks selected from a group consisting of several types of recording marks with different lengths each corresponding to n times (n is a natural number) the clock frequency T, wherein: taking Tr to be the transition time required for a laser beam to rise and Tf to be the transition time required for the laser beam to fall, said recording marks are formed using a laser beam made up of a number of pulses given by nT/(Tr+Tf) or less. Thus, even in the case that one clock period (T) is extremely short, the power level of the laser beam can reliably reach the maximum value (Pw) and minimum value (Pb), so it is possible to form recording marks with a good shape.
摘要翻译：本发明的目的是提供一种将信息记录到适于实现高数据传输速率的光记录介质上的方法。根据本发明的光记录介质包括一种通过在光记录介质上形成从具有不同长度的几种记录标记组成的组中选择的多个记录标记来记录信息到光记录介质的方法每个对应于时钟频率T的n次（n是自然数），其中：使T 为激光束上升所需的转换时间，并且T < >为激光束下降所需的转换时间，所述记录标记使用由nT /（T T + T T）给出的多个脉冲构成的激光束形成）以下。因此，即使在一个时钟周期（T）非常短的情况下，激光束的功率电平可以可靠地达到最大值（P SUB）和最小值（P＆lt; B＆gt; b）），因此可以形成具有良好形状的记录标记。

55. 发明申请

US20050213477A1 Method for recording data on optical recording medium, device for recording data on optical recording medium, and optical recording medium 有权
标题翻译：在光记录介质上记录数据的方法，用于在光记录介质上记录数据的设备和光记录介质
公开(公告)号：US20050213477A1
公开(公告)日：2005-09-29
申请号：US10514611
申请日：2003-05-19
申请人： Tatsuya Kato , Hideki Hirata
发明人： Tatsuya Kato , Hideki Hirata
IPC分类号： G11B5/027 , G11B7/0045
CPC分类号： G11B7/00456 , G11B7/00455 , G11B7/1267
摘要： It is an object of the present invention to provide a method for recording data in an optical recording medium which can record data in a write-once type optical recording medium at a high linear recording velocity using a laser beam whose recording power is set low. The method for recording data in an optical recording medium according to the present invention is constituted so that data are recorded by a laser beam whose power is modulated in accordance with a pulse train pattern onto an optical recording medium including a substrate, a first recording layer, a second recording layer and a light transmission layer to form a recording mark wherein a recording pulse is divided into (n−1) divided pulses and the power of the laser beam is set to a recording power Pw at the peak of each of the divided pulses and set to a first bottom power Pb1 and the levels of the recording power Pw and the first bottom power Pb1 are determined so that a ratio Pb1/Pw of the first bottom power Pb1 to the recording power Pw falls within a range of 0.1 to 0.5. When the power of a laser beam is modulated using such a pulse train pattern to record data in an optical recording medium, the heating of a recording layer by the laser beam having the recording power Pw can be augmented by the laser beam having the first bottom power Pb1 and therefore, even in the case where data are to be recorded in an optical recording medium at a high linear recording velocity, it is possible to record data in the optical recording medium at a high linear recording velocity using a semiconductor laser having a low output.
摘要翻译：本发明的目的是提供一种在光记录介质中记录数据的方法，该记录介质可以使用记录功率设置为低的激光束以高线性记录速度在一次写入型光记录介质中记录数据。根据本发明的用于在光学记录介质中记录数据的方法被构造成使得数据由其功率根据脉冲串图形被调制的激光束记录到包括基板的光学记录介质上，第一记录层，第二记录层和光传输层，以形成记录标记，其中记录脉冲被划分成（n-1）个分割脉冲，激光束的功率被设置为每个的峰值处的记录功率Pw 分割脉冲并设定为第一底部功率Pb 1，并且确定记录功率Pw和第一底部功率Pb 1的电平，使得第一底部功率Pb 1与记录功率Pw的比率Pb 1 / Pw落入范围为0.1至0.5。当使用这样的脉冲串图案来调制激光束的功率以在光学记录介质中记录数据时，通过具有记录功率Pw的激光束对记录层的加热可以通过具有第一底部功率Pb 1，因此即使在以高线性记录速度将数据记录在光学记录介质中的情况下，也可以使用具有高线性记录速度的光线记录介质以高线性记录速度将数据记录在具有产量低。

56. 发明申请

US20050201242A1 Optical recording medium data recording method, optical recording medium data recorder, and optical recording medium 有权
标题翻译：光记录介质数据记录方法，光记录介质数据记录器和光记录介质
公开(公告)号：US20050201242A1
公开(公告)日：2005-09-15
申请号：US10514623
申请日：2003-05-19
申请人： Tatsuya Kato , Hideki Hirata
发明人： Tatsuya Kato , Hideki Hirata
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/24 , G11B7/24038 , G11B7/243 , G11B7/2433 , G11B5/09
CPC分类号： G11B7/00456 , G11B7/24 , G11B7/24038 , G11B7/2433 , G11B2007/0013 , G11B2007/24304 , G11B2007/24312
摘要： It is an object of the present invention to provide a method for recording data in an optical recording medium which can form a recording mark having desired length and width in a write-once type optical recording medium. The method for recording data in an optical recording medium according to the present invention is constituted so as to project a laser beam whose power is modulated by a pulse train pattern onto an optical recording medium including a substrate, a first recording layer, a second recording layer and a light transmission layer 16 wherein a recording pulse of the pulse train pattern is divided into (n−1) divided pulses and the power of the laser beam is set to a recording power Pw at the peak of each of the divided pulses, set to a second bottom power Pb2 at a portion immediately after a last divided pulse and set to a first bottom power Pb1 at other intervals where Pb1 is higher than Pb2.
摘要翻译：本发明的目的是提供一种用于在光记录介质中记录数据的方法，该光记录介质可以在一次写入型光记录介质中形成具有所需长度和宽度的记录标记。根据本发明的用于在光学记录介质中记录数据的方法被构成为将其功率由脉冲串图案调制的激光束投射到包括基板，第一记录层，第二记录层和光传输层16，其中脉冲序列图案的记录脉冲被划分为（n-1）个分割脉冲，并且激光束的功率被设置为每个分割脉冲的峰值处的记录功率Pw，在最后一个分割脉冲之后的一部分处设置为第二底部功率Pb 2，并且在Pb 1高于Pb 2的其它间隔处设定为第一底部功率Pb 1。

57. 发明授权

US07142491B2 Optical recording medium 失效
标题翻译：光记录介质
公开(公告)号：US07142491B2
公开(公告)日：2006-11-28
申请号：US10519282
申请日：2003-06-27
申请人： Tatsuya Kato , Tatsuhiro Kobayashi , Hiroyasu Inoue
发明人： Tatsuya Kato , Tatsuhiro Kobayashi , Hiroyasu Inoue
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0045
摘要： A method for determining the recording power of a laser beam so that jitter from a reproduced signal obtained by reproducing data recorded in a data rewritable type optical recording medium can be controlled within a tolerance even when cross erasing of data occurs, the reproduced signal having the highest obtainable level. The power of a laser beam is measured for each level of the recording power of the laser beam. Critical parameters are also calculated for each level of the recording power of the laser beam. The critical parameters are projected onto a data rewritable type optical recording medium for recording data therein. A data recording apparatus storing a critical parameter used for determining the power of a laser beam is associated with ID data for identifying the kind of optical recording medium. A data recording apparatus storing an optimum recording power used for determining the power of a laser beam is also associated with ID data for identifying the kind of optical recording medium.
摘要翻译：一种用于确定激光束的记录功率的方法，使得即使当数据的交叉擦除发生时，也可以将通过再现记录在数据可重写型光学记录介质中的数据而获得的再现信号的抖动控制在容限内，最高可获得水平。针对激光束的记录功率的每个级别测量激光束的功率。对于激光束的记录功率的每个级别也计算关键参数。将关键参数投影到用于在其中记录数据的数据可重写型光学记录介质上。存储用于确定激光束的功率的临界参数的数据记录装置与用于识别光学记录介质的种类的ID数据相关联。存储用于确定激光束的功率的最佳记录功率的数据记录装置也与用于识别光学记录介质的种类的ID数据相关联。

58. 发明授权

US07554892B2 Method for recording data in optical recording medium, an apparatus for recording data in optical recording medium and optical recording medium 有权
标题翻译：在光学记录介质中记录数据的方法，用于在光学记录介质和光学记录介质中记录数据的装置
公开(公告)号：US07554892B2
公开(公告)日：2009-06-30
申请号：US10514611
申请日：2003-05-19
申请人： Tatsuya Kato , Hideki Hirata
发明人： Tatsuya Kato , Hideki Hirata
IPC分类号： G11B7/00
CPC分类号： G11B7/00456 , G11B7/00455 , G11B7/1267
摘要： It is an object of the present invention to provide a method for recording data in an optical recording medium which can record data in a write-once type optical recording medium at a high linear recording velocity using a laser beam whose recording power is set low. The method for recording data in an optical recording medium according to the present invention is constituted so that data are recorded by a laser beam whose power is modulated in accordance with a pulse train pattern onto an optical recording medium including a substrate, a first recording layer, a second recording layer and a light transmission layer to form a recording mark wherein a recording pulse is divided into (n−1) divided pulses and the power of the laser beam is set to a recording power Pw at the peak of each of the divided pulses and set to a first bottom power Pb1 and the levels of the recording power Pw and the first bottom power Pb1 are determined so that a ratio Pb1/Pw of the first bottom power Pb1 to the recording power Pw falls within a range of 0.1 to 0.5. When the power of a laser beam is modulated using such a pulse train pattern to record data in an optical recording medium, the heating of a recording layer by the laser beam having the recording power Pw can be augmented by the laser beam having the first bottom power Pb1 and therefore, even in the case where data are to be recorded in an optical recording medium at a high linear recording velocity, it is possible to record data in the optical recording medium at a high linear recording velocity using a semiconductor laser having a low output.
摘要翻译：本发明的目的是提供一种在光记录介质中记录数据的方法，该记录介质可以使用记录功率设置为低的激光束以高线性记录速度在一次写入型光记录介质中记录数据。根据本发明的用于在光学记录介质中记录数据的方法被构造成使得数据由其功率根据脉冲串图形被调制的激光束记录到包括基板的光学记录介质上，第一记录层，第二记录层和光传输层，以形成记录标记，其中记录脉冲被划分成（n-1）个分割脉冲，激光束的功率被设置为每个的峰值处的记录功率Pw 分割脉冲并设定为第一底部功率Pb1，并且确定记录功率Pw和第一底部功率Pb1的电平，使得第一底部功率Pb1与记录功率Pw的比率Pb1 / Pw落在0.1的范围内至0.5。当使用这样的脉冲串图案来调制激光束的功率以在光学记录介质中记录数据时，通过具有记录功率Pw的激光束对记录层的加热可以通过具有第一底部功率Pb1，因此即使在以高线性记录速度将数据记录在光学记录介质中的情况下，也可以使用具有以下功能的半导体激光器以高线性记录速度将数据记录在光学记录介质中低产量。

59. 发明授权

US07362682B2 Method for recording data in an optical recording disc and an apparatus for recording data in an optical recording disc 失效
标题翻译：用于在光学记录盘中记录数据的方法和用于在光学记录盘中记录数据的装置
公开(公告)号：US07362682B2
公开(公告)日：2008-04-22
申请号：US10927539
申请日：2004-08-26
申请人： Hiroshi Shingai , Tatsuya Kato , Hideki Hirata
发明人： Hiroshi Shingai , Tatsuya Kato , Hideki Hirata
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/0062
摘要： A method for recording data in an optical recording disc including a substrate and a recording layer formed on the substrate and containing a phase change material as a primary component is constituted so that data can be recorded therein and data recorded therein can be erased by projecting thereonto at a high linear velocity equal to or higher than a predetermined linear velocity a laser beam whose power is modulated in accordance with a pulse train pattern including a plurality of kinds of unit pulse train patterns each having at least recording pulses whose levels are set to a recording power and bottom pulses whose levels are set to a bottom power onto the recording layer and forming a plurality of recording marks having different lengths in the recording layer, wherein among the plurality of kinds of unit pulse train patterns used for forming recording marks having different lengths those other than the unit pulse train pattern used for forming the shortest recording mark are determined so that they include recording pulses in a number corresponding to the length of the recording mark to be formed, that corresponding recording pulses included therein have a common pulse width and that each of them includes a bottom pulse whose pulse width is determined in accordance with the length of the recording mark to be formed at the end thereof. According to this method for recording data in an optical recording disc, it is possible to reduce jitter of a reproduced signal even when data are recorded at a low linear recording velocity in the recording layer designed to be suitable for recording data therein at a high linear recording velocity.
摘要翻译：在包括形成在基板上并包含相变材料作为主要部件的基板和记录层的光记录盘中记录数据的方法被构成为能够记录数据并且可以通过在其上投影记录来擦除其中记录的数据在等于或高于预定线速度的高线速度下，其功率根据包括多个单位脉冲序列的脉冲序列模式进行调制的激光束，每个单位脉冲串模式至少具有将其电平设置为记录功率和底部脉冲，其电平被设置为记录层上的底部功率并且在记录层中形成具有不同长度的多个记录标记，其中在用于形成具有不同的记录标记的记录标记的多种单位脉冲串模式中长度除了用于形成最短记录标记的单位脉冲串图案以外的那些使得它们包括与要形成的记录标记的长度相对应的数字的记录脉冲，其中包括的相应记录脉冲具有公共脉冲宽度，并且它们中的每一个包括其脉冲宽度根据要在其末端形成的记录标记的长度。根据用于在光学记录盘中记录数据的方法，即使当数据以低线性记录速度记录在设计成适合于以高线性记录数据的记录层中的记录层时，也可以减少再现信号的抖动记录速度。

60. 发明授权

US07173893B2 Optical recording medium, method of recording information to an optical recording medium, and information recording apparatus 有权
标题翻译：光记录媒体，向光学记录媒体记录信息的方法以及信息记录装置
公开(公告)号：US07173893B2
公开(公告)日：2007-02-06
申请号：US10489050
申请日：2002-09-05
申请人： Tatsuya Kato , Hiroshi Shingai , Hideki Hirata
发明人： Tatsuya Kato , Hiroshi Shingai , Hideki Hirata
IPC分类号： G11B5/09 , G11B7/00
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/00454 , G11B7/0062
摘要： It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates.The optical recording medium according to the present invention comprises a method of recording information to an optical recording medium where information is recorded by forming on the optical recording medium a plurality of recording marks selected from a group consisting of several types of recording marks each with different lengths, wherein a first recording mark and a second recording mark contained within said group are formed with the number of pulses and the pulse spacing in the laser beam set substantially equal to each other. Thus, even in the case that one clock period (T) is shortened to achieve high transfer rates, recording marks with good shapes can be formed. In addition, control is simplified and it is possible to reduce the cost of a drive to which the present invention is applied.
摘要翻译：本发明的目的是提供一种将信息记录到适于实现高数据传输速率的光记录介质上的方法。根据本发明的光记录介质包括通过在光记录介质上形成多个记录标记来记录信息到光记录介质上的方法，所述多个记录标记选自由具有不同的几种类型的记录标记组成的组长度，其中包含在所述组内的第一记录标记和第二记录标记以脉冲数形成，并且激光束中的脉冲间隔基本上彼此相等。因此，即使在一个时钟周期（T）被缩短以实现高传输速率的情况下，也可以形成具有良好形状的记录标记。此外，控制简化，并且可以降低应用本发明的驱动器的成本。

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