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1. 发明授权

US07885160B2 Method of recording information on and reproducing information from optical disk and apparatus for the same 有权
标题翻译：在光盘上记录信息和从光盘再现信息的方法及其装置
公开(公告)号：US07885160B2
公开(公告)日：2011-02-08
申请号：US12178828
申请日：2008-07-24
申请人： Takakiyo Yasukawa , Koichi Watanabe , Naohito Ikeda , Toshio Shoji , Yasuhiro Wada
发明人： Takakiyo Yasukawa , Koichi Watanabe , Naohito Ikeda , Toshio Shoji , Yasuhiro Wada
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B20/10009 , G11B20/10222 , G11B20/1403 , G11B2220/218 , G11B2220/2541
摘要： There is provided an information recording and reproducing method and an apparatus for the same capable of optimizing the shift adjustment of a recording pulse recorded in an optical disk even at the time of recording information on the optical disk at a high speed. The shift adjustment value of the recording pulse optimized at a low speed recording on an optical disk is multiplied by a constant value to be taken as the optimum shift conditions of the recording pulse at the high speed recording.
摘要翻译：提供了一种信息记录和再现方法及其装置，即使在高速记录光盘上的信息时，也可以优化记录在光盘中的记录脉冲的移位调整。在光盘上以低速记录优化的记录脉冲的移位调整值乘以一个恒定值作为高速记录时记录脉冲的最佳移位条件。

2. 发明授权

US07944790B2 Optical disc apparatus and data recording method thereof 有权
标题翻译：光盘装置及其数据记录方法
公开(公告)号：US07944790B2
公开(公告)日：2011-05-17
申请号：US12073080
申请日：2008-02-29
申请人： Yasuhiro Wada , Koichi Watanabe , Toshio Shoji , Takakiyo Yasukawa , Naohito Ikeda
发明人： Yasuhiro Wada , Koichi Watanabe , Toshio Shoji , Takakiyo Yasukawa , Naohito Ikeda
IPC分类号： G11B11/00
CPC分类号： G11B7/1267
摘要： In order to ensure recording quality while suppressing the adverse effects due to performance variations among apparatuses and disc radial positions on an optical disc, an optical disc apparatus according to the present invention performs, at the time of data recording, the steps of: acquiring a jitter value and β value from a reproduced signal based on laser light reflected from the optical disc in relation to a disc radial position; learning a β value when the acquired jitter value is a minimum as a target β value; and, if a jitter value acquired thereafter is larger than the minimum jitter value by a preset reference value or above, correcting recording power based on the magnitude relation and the difference between the β value associated with the acquired jitter value and the target β value or performing trial record processing.
摘要翻译：为了确保记录质量，同时抑制由于设备之间的性能变化和光盘上的盘径向位置的不利影响，根据本发明的光盘装置在数据记录时执行以下步骤：获取抖动值和＆bgr 来自基于从光盘反射的相对于盘径向位置的激光的再现信号的值; 学习和学习当获取的抖动值作为目标＆bgr为最小时的值; 值; 并且如果其后获得的抖动值大于最小抖动值预先设定的参考值以上，则基于大小关系和“bgr”之间的差异来校正记录功率。与所获取的抖动值和目标值bgr相关联的值; 价值或执行试验记录处理。

3. 发明申请

US20090080301A1 Method of Recording Information On and Reproducing Information From Optical Disk and Apparatus for the Same 有权
标题翻译：从光盘记录信息和再现信息的方法及其设备
公开(公告)号：US20090080301A1
公开(公告)日：2009-03-26
申请号：US12178828
申请日：2008-07-24
申请人： Takakiyo Yasukawa , Koichi Watanabe , Naohito Ikeda , Toshio Shoji , Yasuhiro Wada
发明人： Takakiyo Yasukawa , Koichi Watanabe , Naohito Ikeda , Toshio Shoji , Yasuhiro Wada
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B20/10009 , G11B20/10222 , G11B20/1403 , G11B2220/218 , G11B2220/2541
摘要： There is provided an information recording and reproducing method and an apparatus for the same capable of optimizing the shift adjustment of a recording pulse recorded in an optical disk even at the time of recording information on the optical disk at a high speed. The shift adjustment value of the recording pulse optimized at a low speed recording on an optical disk is multiplied by a constant value to be taken as the optimum shift conditions of the recording pulse at the high speed recording.
摘要翻译：提供了一种信息记录和再现方法及其装置，即使在高速记录光盘上的信息时，也可以优化记录在光盘中的记录脉冲的移位调整。在光盘上以低速记录优化的记录脉冲的移位调整值乘以一个恒定值作为高速记录时的记录脉冲的最佳移位条件。

4. 发明申请

US20080298194A1 Optical disc apparatus and data recording method thereof 有权
标题翻译：光盘装置及其数据记录方法
公开(公告)号：US20080298194A1
公开(公告)日：2008-12-04
申请号：US12073080
申请日：2008-02-29
申请人： Yasuhiro Wada , Koichi Watanabe , Toshio Shoji , Takakiyo Yasukawa , Naohito Ikeda
发明人： Yasuhiro Wada , Koichi Watanabe , Toshio Shoji , Takakiyo Yasukawa , Naohito Ikeda
IPC分类号： G11B7/095 , G11B27/36
CPC分类号： G11B7/1267
摘要： In order to ensure recording quality while suppressing the adverse effects due to performance variations among apparatuses and disc radial positions on an optical disc, an optical disc apparatus according to the present invention performs, at the time of data recording, the steps of: acquiring a jitter value and β value from a reproduced signal based on laser light reflected from the optical disc in relation to a disc radial position; learning a β value when the acquired jitter value is a minimum as a target β value; and, if a jitter value acquired thereafter is larger than the minimum jitter value by a preset reference value or above, correcting recording power based on the magnitude relation and the difference between the β value associated with the acquired jitter value and the target β value or performing trial record processing.
摘要翻译：为了确保记录质量，同时抑制由于设备之间的性能变化和光盘上的盘径向位置的不利影响，根据本发明的光盘装置在数据记录时执行以下步骤：获取基于从光盘相对于盘径向位置反射的激光的再现信号的抖动值和β值; 当所获取的抖动值作为目标β值为最小时，学习β值; 并且如果其后获得的抖动值大于最小抖动值预先设定的参考值或以上，则基于大小关系和与所获取的抖动值相关联的β值与目标β值之间的差来校正记录功率，或进行试卷记录处理。

5. 发明授权

US09286929B2 Multilayered optical disk and its recording method 有权
标题翻译：多层光盘及其记录方法
公开(公告)号：US09286929B2
公开(公告)日：2016-03-15
申请号：US12570106
申请日：2009-09-30
申请人： Harukazu Miyamoto , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
发明人： Harukazu Miyamoto , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
IPC分类号： G11B7/007 , G11B7/1267 , G11B7/24038 , G11B7/00
CPC分类号： G11B7/00736 , G11B7/1267 , G11B7/24038 , G11B2007/0013
摘要： A method for performing recording on a multilayered optical disk which has three or more recordable or rewritable information recording layers with a first recording layer and a second recording layer located nearer to a light incident surface than the first recording layer, and which respectively has a first test area configured by a plurality of segments in the first recording layer and in the second recording layer, wherein a predetermined radial distance L is defined beforehand. When an arbitrary segment in the second test area is test-recorded, a segment in the first test area, the radial distance of which from the recorded test area in the second test area is within the range of the predetermined radial distance L, is set as a segment in which test recording is not performed.
摘要翻译：一种用于在具有三个或更多个可记录或可重写信息记录层的多层光盘上执行记录的方法，所述信息记录层具有位于比第一记录层更靠近光入射表面的第一记录层和第二记录层，并且分别具有第一测试区域由第一记录层和第二记录层中的多个段构成，其中预先定义预定的径向距离L. 当对第二测试区域中的任意段进行测试记录时，将第一测试区域中与第二测试区域中记录的测试区域的径向距离设置在预定的径向距离L的范围内的段被设置作为不执行测试记录的段。

6. 发明授权

US08004957B2 Recording and reproducing method and recording and reproducing apparatus 有权
标题翻译：记录和再现方法以及记录和再现装置
公开(公告)号：US08004957B2
公开(公告)日：2011-08-23
申请号：US11751753
申请日：2007-05-22
申请人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
发明人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
IPC分类号： G11B7/00 , G11B20/10 , G11B5/09
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A recording and reproducing method has a recording pulse generating step of generating a recording pulse to set timing of a beam emitted from a laser according to data to be recorded on an information recording medium; a laser power control step of controlling a laser drive current according to a recording laser power; a beam detecting step of detecting a power of the beam emitted from the laser; a signal detecting step of detecting a signal level of a reproduction signal read out from the information recording medium; a step of binarizing the reproduction signal to generate a binarized signal; a step of generating a data signal synchronized with a reference clock signal with use of the binarized signal; and a step of detecting a shift in time interval between the binarized signal and the reference clock signal and feeding the shift back to the recording pulse.
摘要翻译：记录和再现方法具有记录脉冲产生步骤，根据要记录在信息记录介质上的数据产生记录脉冲，以设定从激光发射的光束的定时; 激光功率控制步骤，根据记录激光功率来控制激光驱动电流; 光束检测步骤，用于检测从激光器发射的光束的功率; 信号检测步骤，检测从信息记录介质读出的再现信号的信号电平; 将再现信号二值化以生成二值化信号的步骤; 使用二值化信号产生与参考时钟信号同步的数据信号的步骤; 以及检测二值化信号和参考时钟信号之间的时间间隔的偏移并将移位返回到记录脉冲的步骤。

7. 发明申请

US20080137520A1 Recording and Reproducing Method and Recording and Reproducing Apparatus 有权
标题翻译：记录和再现方法和记录和再现装置
公开(公告)号：US20080137520A1
公开(公告)日：2008-06-12
申请号：US11751753
申请日：2007-05-22
申请人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
发明人： Takakiyo Yasukawa , Koichi Watanabe , Koichiro Nishimura
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062
摘要： A recording and reproducing method has a recording pulse generating step of generating a recording pulse to set timing of a beam emitted from a laser according to data to be recorded on an information recording medium; a laser power control step of controlling a laser drive current according to a recording laser power; a beam detecting step of detecting a power of the beam emitted from the laser; a signal detecting step of detecting a signal level of a reproduction signal read out from the information recording medium; a step of binarizing the reproduction signal to generate a binarized signal; a step of generating a data signal synchronized with a reference clock signal with use of the binarized signal; and a step of detecting a shift in time interval between the binarized signal and the reference clock signal and feeding the shift back to the recording pulse.
摘要翻译：记录和再现方法具有记录脉冲产生步骤，根据要记录在信息记录介质上的数据产生记录脉冲，以设定从激光发射的光束的定时; 激光功率控制步骤，根据记录激光功率来控制激光驱动电流; 光束检测步骤，用于检测从激光器发射的光束的功率; 信号检测步骤，检测从信息记录介质读出的再现信号的信号电平; 将再现信号二值化以生成二值化信号的步骤; 使用二值化信号产生与参考时钟信号同步的数据信号的步骤; 以及检测二值化信号和参考时钟信号之间的时间间隔的偏移并将移位返回到记录脉冲的步骤。

8. 发明申请

US20070297309A1 Optical disc recording method and optical disc recording apparatus 审中-公开
标题翻译：光盘记录方法和光盘记录装置
公开(公告)号：US20070297309A1
公开(公告)日：2007-12-27
申请号：US11729739
申请日：2007-03-28
申请人： Takakiyo Yasukawa , Koichi Watanabe
发明人： Takakiyo Yasukawa , Koichi Watanabe
IPC分类号： G11B20/10
CPC分类号： G11B7/00456 , G11B7/0062 , G11B7/126
摘要： An optical disc apparatus that ensures a stable recording performance by assigning a separate recording power to a driving current for driving a laser during recording in response to each record length.
摘要翻译：一种光盘装置，其通过响应于每个记录长度在记录期间为驱动激光器的驱动电流分配独立的记录功率来确保稳定的记录性能。

9. 发明申请

US20110317535A1 Multilayered Optical Disk And Its Recording Method 审中-公开
标题翻译：多层光盘及其记录方法
公开(公告)号：US20110317535A1
公开(公告)日：2011-12-29
申请号：US13230290
申请日：2011-09-12
申请人： Harukazu Miyamoto , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
发明人： Harukazu Miyamoto , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
IPC分类号： G11B27/36 , G11B7/24
CPC分类号： G11B7/00736 , G11B7/1267 , G11B7/24038 , G11B2007/0013
摘要： A multilayered optical disk an information recording method and information reproducing method utilizing the disk includes three or more recordable or rewritable information recording layers, which has, among the plurality of information recording layers, at least a first recording layer and a second recording layer located on a side nearer to a light incident surface than the first recording layer, and which respectively has a first test area configured by a plurality of segments in the first recording layer, a second test area configured by a plurality of segments in the second recording layer, and comprising a specific area in which there is recorded information used to determine whether or not the respective segments in the first test area can be used.
摘要翻译：一种多层光盘，利用该盘的信息记录方法和信息再现方法包括三个或更多个可记录或可重写的信息记录层，它们在多个信息记录层之中至少存在第一记录层和位于比第一记录层更靠近光入射表面的一侧，分别具有由第一记录层中的多个段构成的第一测试区，由第二记录层中的多个段构成的第二测试区，并且包括其中存储有用于确定第一测试区域中的各个段是否可以被使用的记录信息的特定区域。

10. 发明申请

US20100309764A1 MULTILAYERED OPTICAL DISK AND ITS RECORDING METHOD 有权
标题翻译：多层光盘及其记录方法
公开(公告)号：US20100309764A1
公开(公告)日：2010-12-09
申请号：US12570106
申请日：2009-09-30
申请人： Harukazu MIYAMOTO , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
发明人： Harukazu MIYAMOTO , Koichi Watanabe , Yutaka Nagai , Koichiro Nishimura , Takakiyo Yasukawa
IPC分类号： G11B7/00 , G11B3/74 , G11B20/18
CPC分类号： G11B7/00736 , G11B7/1267 , G11B7/24038 , G11B2007/0013
摘要： To provide a recording method of a multilayered optical disk having three or more recording layers, for performing recording while securing sufficient test areas without reducing user data areas, and while suitably controlling the power of laser beam irradiated onto each of the layers. The method uses an optical disk which has at least a first recording layer and a second recording layer located on the side nearer to the light incident surface than the first recording layer, and which respectively has a first test area configured by a plurality of segments in the first recording layer and a second test area configured by a plurality of segments in the second recording layer. Further, the method is configured such that there is defined beforehand a predetermined radial distance L corresponding to relative precision of radial positions between the plurality of layers and the optical spot diameter, and that when an arbitrary segment in the second test area is test-recorded, a segment in the first test area, the radial distance of which from the recorded test area in the second test area is within the range of the predetermined radial distance L, is set as a segment in which the test recording is not performed. Thereby, even in the case where the radial positions of the test areas of the plurality of layers are substantially overlapped with each other, it is possible to precisely perform the learning of optical power. For this reason, it is possible to use and arrange the test areas of the plurality of layers without waste. Further, the learning of recording power can be performed without receiving the influence of the recorded state of the other layers, so that the accuracy of the learning of recording power can be improved. Thereby, it is possible to improve the quality of recording and the reliability of recorded data.
摘要翻译：为了提供具有三个或更多个记录层的多层光盘的记录方法，用于在确保足够的测试区域的同时确保足够的测试区域而不减少用户数据区域，并且同时适当地控制照射到每个层上的激光束的功率。该方法使用至少具有第一记录层和位于比第一记录层更靠近光入射面的一侧的第二记录层的光盘，并且分别具有由多个区段构成的第一测试区域第一记录层和由第二记录层中的多个段构成的第二测试区。此外，该方法被配置为使得预先确定对应于多个层之间的径向位置与光点直径的相对精度的预定径向距离L，并且当第二测试区域中的任意段被测试记录时在第一测试区域中，与第二测试区域中记录的测试区域的距离距离在预定的径向距离L的范围内的段被设置为不执行测试记录的段。因此，即使在多个层的测试区域的径向位置彼此大致重叠的情况下，也可以精确地执行光功率的学习。因此，可以不浪费地使用并排列多层的测试区域。此外，可以在不接收到其他层的记录状态的影响的情况下执行记录功率的学习，从而可以提高记录功率的学习的准确性。由此，能够提高记录质量和记录数据的可靠性。

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