公开(公告)号：US08228771B2

公开(公告)日：2012-07-24

申请号：US12056430

申请日：2008-03-27

申请人： Takuya Himi ,  Toshiki Ishii ,  Tsuyoshi Toda

发明人： Takuya Himi ,  Toshiki Ishii ,  Tsuyoshi Toda

IPC分类号： G11B11/00

CPC分类号： G11B20/182 ,  G11B7/00456 ,  G11B7/1267 ,  G11B27/36 ,  G11B2020/1275 ,  G11B2220/2537

摘要： In a recording/reproducing apparatus and a recording method, for enabling a high reliability on reproduction data are conducted the followings: recording a test mark within the test aria with a predetermined write strategy; obtaining signal amplitudes corresponding to a front portion, a middle portion, and a rear portion of the test mark, by reproducing the test mark; determining on whether the test mark has a desirable configuration or not, upon basis of at least one of ratios, defined between the amplitude of the front portion and the amplitude of the rear portion, and between the amplitude of the middle portion and the amplitude of the rear portion; correcting the write strategy if it is determined that the test mark has not the desirable configuration; and recording the information within the data area with the write strategy after the correction thereof.

摘要翻译： 在记录/再现装置和记录方法中，为了能够在再现数据上实现高可靠性，进行以下操作：以预定的写入策略在测试咏叹调中记录测试标记; 通过再现测试标记获得对应于测试标记的前部，中间部分和后部的信号幅度; 基于在前部的振幅和后部的振幅之间以及在中间部分的振幅和振幅之间限定的比例中的至少一个之后，确定测试标记是否具有期望的配置 后部; 如果确定测试标记没有期望的配置，则校正写入策略; 并在其修正之后用写入策略在数据区域内记录信息。

公开(公告)号：US20080304388A1

公开(公告)日：2008-12-11

申请号：US12056430

申请日：2008-03-27

申请人： Takuya HIMI ,  Toshiki Ishii ,  Tsuyoshi Toda

发明人： Takuya HIMI ,  Toshiki Ishii ,  Tsuyoshi Toda

IPC分类号： G11B20/18

CPC分类号： G11B20/182 ,  G11B7/00456 ,  G11B7/1267 ,  G11B27/36 ,  G11B2020/1275 ,  G11B2220/2537

摘要： In a recording/reproducing apparatus and a recording method, for enabling a high reliability on reproduction data are conducted the followings: recording a test mark within the test aria with a predetermined write strategy; obtaining signal amplitudes corresponding to a front portion, a middle portion, and a rear portion of the test mark, by reproducing the test mark; determining on whether the test mark has a desirable configuration or not, upon basis of at least one of ratios, defined between the amplitude of the front portion and the amplitude of the rear portion, and between the amplitude of the middle portion and the amplitude of the rear portion; correcting the write strategy if it is determined that the test mark has not the desirable configuration; and recording the information within the data area with the write strategy after the correction thereof.

摘要翻译： 在记录/再现装置和记录方法中，为了能够在再现数据上实现高可靠性，进行以下操作：以预定的写入策略在测试咏叹调中记录测试标记; 通过再现测试标记获得对应于测试标记的前部，中间部分和后部的信号幅度; 基于在前部的振幅和后部的振幅之间以及在中间部分的振幅和振幅之间限定的比例中的至少一个之后，确定测试标记是否具有期望的配置 后部; 如果确定测试标记没有期望的配置，则校正写入策略; 并在其修正之后用写入策略在数据区域内记录信息。

公开(公告)号：US07995430B2

公开(公告)日：2011-08-09

申请号：US12080138

申请日：2008-03-31

申请人： Tsuyoshi Toda ,  Toshiki Ishii

发明人： Tsuyoshi Toda ,  Toshiki Ishii

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908

摘要： Provided is an optical disk device capable of recording and/or reproducing information on optical disks with high reliability; and a method for controlling the optical disk device. The position of an optical lens where the amplitude of a reproduction signal during the period corresponding to a minimum-length recording mark and a space having the same length reaches its maximum is detected; and the detected position is set as a reference position for the objective lens relative to the optical disk, for use in focus control. Also, the position of the objective lens where the result of multiplication of resolution and modulation becomes greatest is detected; and the detected position is set as a reference position for the objective lens relative to the optical disk, for use in focus control.

摘要翻译： 提供了能够以高可靠性在光盘上记录和/或再现信息的光盘装置; 以及控制光盘装置的方法。 检测在与最小长度记录标记相对应的时段期间的再现信号的幅度和具有相同长度的空间达到其最大值的光学透镜的位置; 并且将检测到的位置设置为物镜相对于光盘的基准位置，以用于聚焦控制。 此外，检测分辨率和调制的乘法结果变得最大的物镜的位置; 并且将检测到的位置设置为物镜相对于光盘的基准位置，以用于聚焦控制。

公开(公告)号：US20070121462A1

公开(公告)日：2007-05-31

申请号：US11488617

申请日：2006-07-19

申请人： Toshiki Ishii ,  Tsuyoshi Toda ,  Tetsuya Fushimi ,  Masashi Imai

发明人： Toshiki Ishii ,  Tsuyoshi Toda ,  Tetsuya Fushimi ,  Masashi Imai

IPC分类号： G11B7/0045

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： To provide a technology for improving the recording quality through edge correction of recording pulse in an optical disc apparatus. An optimum recording power of recording pulse is obtained through OPC processing according to a recording strategy with a first pulse timing; recording is performed by use of recording pulse with the optimum recording power; a first edge-shift amount of recording mark is measured from a reproduction signal to perform edge correction of recording pulse to form a second pulse timing of a recording strategy. Subsequently, recording is performed with pulse width variations of recording pulse to measure a second edge-shift amount of recording mark from a reproduction signal; and optimum edge positions of recording pulse are calculated based on the first edge-shift amount and the second edge-shift amount.

摘要翻译： 提供通过光盘装置中的记录脉冲的边缘校正来提高记录质量的技术。 通过根据具有第一脉冲定时的记录策略的OPC处理获得记录脉冲的最佳记录功率; 通过使用具有最佳记录功率的记录脉冲进行记录; 从再现信号测量记录标记的第一边缘移位量，以执行记录脉冲的边缘校正，以形成记录策略的第二脉冲定时。 随后，利用记录脉冲的脉冲宽度变化执行记录，以从再现信号测量记录标记的第二边缘移位量; 并且基于第一边缘移位量和第二边缘移位量来计算记录脉冲的最佳边缘位置。

公开(公告)号：US20060280090A1

公开(公告)日：2006-12-14

申请号：US11290510

申请日：2005-12-01

申请人： Toshiki Ishii ,  Tsuyoshi Toda

发明人： Toshiki Ishii ,  Tsuyoshi Toda

IPC分类号： G11B5/09

CPC分类号： G11B7/126 ,  G11B7/00456 ,  G11B7/0079

摘要： In a CAV recording of an optical disk, when a plurality of zones are provided, a write strategy is matched for a change in recording linear velocity in the zone so that recording quality can be assured, and recording power is controlled. The write strategy (pulse timing and power ratio) is optimized at the highest recording linear velocity of each zone and the setting of the power in each zone is controlled so that a relation between a recording linear velocity V and a recording power Po satisfies Po=CV (C is a coefficient which is obtained from the relation between Po and V at a zone end point), thereby assuring the reliability of recorded information.

公开(公告)号：US20060023590A1

公开(公告)日：2006-02-02

申请号：US11190840

申请日：2005-07-28

申请人： Toshiki Ishii ,  Tsuyoshi Toda ,  Masaaki Kurebayashi ,  Takakiyo Yasukawa

发明人： Toshiki Ishii ,  Tsuyoshi Toda ,  Masaaki Kurebayashi ,  Takakiyo Yasukawa

IPC分类号： G11B19/00 ,  G11B7/12

CPC分类号： G11B7/00375 ,  G11B7/0045 ,  G11B7/0948 ,  G11B7/1263

摘要： An optical disc recording and reproducing apparatus are provided in which even if a focusing error signal fluctuates suddenly by surface deflection or an obstacle such as scratch or dust on the surface of an optical disc, an effective recording laser power does not decrease but proper recording, erasure, and reproduction can be executed. An ordinary laser power for recording and a laser power for defocus, that is, a laser power larger than the ordinary recording laser power by a predetermined magnification are preset into a laser driver. In the normal case where a focusing error lies within a predetermined range, the former laser power is used. When the focusing error exceeds the predetermined range and the effective laser power is decreased by the defocus, the latter laser power is used.

摘要翻译： 提供了一种光盘记录和再现装置，其中即使聚焦误差信号由于表面偏转或光盘表面上的划痕或灰尘等障碍物而突然变化，有效的记录激光功率也不会下降，而是适当的记录， 可以执行擦除和再现。 用于记录的普通激光功率和用于散焦的激光功率，即，比普通记录激光功率大的预定倍率的激光功率被预设为激光驱动器。 在聚焦误差在预定范围内的正常情况下，使用前一激光功率。 当聚焦误差超过预定范围并且通过散焦降低有效激光功率时，使用后一激光功率。

公开(公告)号：US07567490B2

公开(公告)日：2009-07-28

申请号：US11290510

申请日：2005-12-01

申请人： Toshiki Ishii ,  Tsuyoshi Toda

发明人： Toshiki Ishii ,  Tsuyoshi Toda

IPC分类号： G11B5/09

CPC分类号： G11B7/126 ,  G11B7/00456 ,  G11B7/0079

摘要： In a CAV recording of an optical disk, when a plurality of zones are provided, a write strategy is matched for a change in recording linear velocity in the zone so that recording quality can be assured, and recording power is controlled. The write strategy (pulse timing and power ratio) is optimized at the highest recording linear velocity of each zone and the setting of the power in each zone is controlled so that a relation between a recording linear velocity V and a recording power Po satisfies Po=CV (C is a coefficient which is obtained from the relation between Po and V at a zone end point), thereby assuring the reliability of recorded information.

摘要翻译： 在光盘的CAV记录中，当提供多个区域时，对该区域中记录线速度的变化进行匹配写入策略，从而可以确保记录质量，并且控制记录功率。 写入策略（脉冲定时和功率比）在每个区域的最高记录线速度下被优化，并且控制每个区域中功率的设置，使得记录线速度V和记录功率Po之间的关系满足Po = CV（C是从区域终点处的Po和V之间的关系获得的系数），从而确保记录信息的可靠性。

公开(公告)号：US20090028020A1

公开(公告)日：2009-01-29

申请号：US12080138

申请日：2008-03-31

申请人： Tsuyoshi Toda ,  Toshiki Ishii

发明人： Tsuyoshi Toda ,  Toshiki Ishii

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908

摘要： Provided is an optical disk device capable of recording and/or reproducing information on optical disks with high reliability; and a method for controlling the optical disk device. The position of an optical lens where the amplitude of a reproduction signal during the period corresponding to a minimum-length recording mark and a space having the same length reaches its maximum is detected; and the detected position is set as a reference position for the objective lens relative to the optical disk, for use in focus control. Also, the position of the objective lens where the result of multiplication of resolution and modulation becomes greatest is detected; and the detected position is set as a reference position for the objective lens relative to the optical disk, for use in focus control.

摘要翻译： 提供了能够以高可靠性在光盘上记录和/或再现信息的光盘装置; 以及控制光盘装置的方法。 检测在与最小长度记录标记相对应的时段期间的再现信号的幅度和具有相同长度的空间达到其最大值的光学透镜的位置; 并且将检测到的位置设置为物镜相对于光盘的基准位置，以用于聚焦控制。 此外，检测分辨率和调制的乘法结果变得最大的物镜的位置; 并且将检测到的位置设置为物镜相对于光盘的基准位置，以用于聚焦控制。

公开(公告)号：US20060215515A1

公开(公告)日：2006-09-28

申请号：US11362708

申请日：2006-02-28

申请人： Tsuyoshi Toda ,  Toshiki Ishii

发明人： Tsuyoshi Toda ,  Toshiki Ishii

IPC分类号： G11B7/12

CPC分类号： G11B7/1267 ,  G11B7/0045 ,  G11B7/24038

摘要： Random data is recorded on a higher-level recording layer and then, an optimum recording power is determined on a lower-level recording layer corresponding to the higher-level recording layer. Accordingly, it is necessary to record random data in more areas on the higher-level recording layer than areas for determining the optimum recording power on the lower-level recording layer. Consequently, there is a problem that the areas for determining the optimum recording power are excessively wasted. In the case of determining a recording condition for the lower-level recording layer corresponding to the recorded area on the higher-level recording layer, the recording condition for the lower-level recording layer corresponding to the recorded area on the higher-level recording layer can be easily determined by correcting the recording power using the change in transmittance that is obtained by comparing the case in which the data is recorded on the higher-level recording layer, with the case in which no data is recorded on the higher-level recording layer.

摘要翻译： 随机数据被记录在较高级记录层上，然后在对应于较高级记录层的较低级记录层上确定最佳记录功率。 因此，需要在较高级记录层上的更多区域中记录与在下层记录层上确定最佳记录功率的区域相比的区域的随机数据。 因此，存在用于确定最佳记录功率的区域过度浪费的问题。 在确定与较高级别记录层上的记录区域相对应的下层记录层的记录条件的情况下，对应于较高级别记录层上的记录区域的下层记录层的记录条件 可以通过使用通过比较在高级记录层上记录数据的情况获得的透射率的变化与在高级记录上没有记录数据的情况来校正记录功率来容易地确定 层。

公开(公告)号：US08004941B2

公开(公告)日：2011-08-23

申请号：US11490532

申请日：2006-07-21

申请人： Koichiro Nishimura ,  Toru Kawashima ,  Mitsuru Harai ,  Tsuyoshi Toda

发明人： Koichiro Nishimura ,  Toru Kawashima ,  Mitsuru Harai ,  Tsuyoshi Toda

IPC分类号： G11B5/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B7/0948

摘要： Test writing is executed while skipping areas where deviations are present on an optical disk to thereby improve accuracy and reliability of an optimum recording condition to be derived. A deviation detecting unit detects the deviations of a guide groove on the optical disk on the basis of a fluctuation amount of a focus error signal or a tracking error signal, and registers information of the detected deviations onto a memory. A test writing processing unit refers to the memory, and records and reproduces a test signal while skipping the areas where the deviations are detected.

摘要翻译： 在跳过光盘上存在偏差的区域时执行测试写入，从而提高要获得的最佳记录条件的准确性和可靠性。 偏差检测单元基于聚焦误差信号或跟踪误差信号的波动量检测光盘上的引导槽的偏差，并将检测到的偏差的信息登记到存储器上。 测试写入处理单元参考存储器，并且在跳过检测到偏差的区域时记录和再现测试信号。