公开(公告)号：US08270277B2

公开(公告)日：2012-09-18

申请号：US13301824

申请日：2011-11-22

申请人： Gohshi Jin ,  Shuichi Minamiguchi ,  Satoru Moriya

发明人： Gohshi Jin ,  Shuichi Minamiguchi ,  Satoru Moriya

IPC分类号： G11B11/00

CPC分类号： G11B7/126 ,  G11B7/0903 ,  G11B2007/0013

摘要： An optical disk device and recording method of recording data on an optical disk by driving a laser light source with a driving current superimposed with a high-frequency current. The device and method includes a controller for disabling tracking servo and establishing conditions for reproducing a signal from a predetermined region of the optical disk, for generating a tracking error signal by superimposing the high-frequency current varied in amplitude on the driving current for the laser light source, for determining an amplitude of the high-frequency current that provides an optimum quality of the generated tracking error signal, and for recording data on the optical disk by applying the driving current for the laser light source superimposed with the high-frequency current of the determined amplitude.

摘要翻译： 一种光盘装置和通过以与高频电流重叠的驱动电流驱动激光光源在光盘上记录数据的记录方法。 该装置和方法包括一个控制器，用于禁止跟踪伺服，并建立从光盘的预定区域再现信号的条件，用于通过将振幅变化的高频电流叠加在激光器的驱动电流上来产生跟踪误差信号 光源，用于确定提供产生的跟踪误差信号的最佳质量的高频电流的幅度，以及通过施加叠加有高频电流的激光光源的驱动电流来将数据记录在光盘上 的幅度。

公开(公告)号：US08531925B2

公开(公告)日：2013-09-10

申请号：US13348706

申请日：2012-01-12

申请人： Shuichi Minamiguchi

发明人： Shuichi Minamiguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/09 ,  G11B2007/0013

摘要： Erroneous data erasure owing to radiation of laser beam with excessive power to the recording layer of the multilayered optical disc upon servo-off while reproducing data of the disc is prevented. When detecting the servo-off based on the amplitude of the tracking error signal or the focus error signal, the laser beam power is reduced to a predetermined minimum value, and the laser beam power value is set again based on the address of the recording medium, which has been obtained later for reproduction. The laser beam power value is changed by applying an offset to the drive current or changing the target value under APC.

摘要翻译： 防止由于在再现数据的同时在伺服关闭时对多层光盘的记录层具有过大功率的激光束的辐射造成的错误数据擦除。 当基于跟踪误差信号或聚焦误差信号的振幅检测到伺服关闭时，将激光束功率降低到预定的最小值，并且基于记录介质的地址再次设置激光束功率值 ，其后来被再现。 通过对驱动电流施加偏移或者改变APC下的目标值来改变激光束功率值。

公开(公告)号：US20120134253A1

公开(公告)日：2012-05-31

申请号：US13301824

申请日：2011-11-22

申请人： Gohshi JIN ,  Shuichi Minamiguchi ,  Satoru Moriya

发明人： Gohshi JIN ,  Shuichi Minamiguchi ,  Satoru Moriya

IPC分类号： G11B7/126 ,  G11B27/36

CPC分类号： G11B7/126 ,  G11B7/0903 ,  G11B2007/0013

摘要： An optical disk device and recording method of recording data on an optical disk by driving a laser light source with a driving current superimposed with a high-frequency current. The device and method includes a controller for disabling tracking servo and establishing conditions for reproducing a signal from a predetermined region of the optical disk, for generating a tracking error signal by superimposing the high-frequency current varied in amplitude on the driving current for the laser light source, for determining an amplitude of the high-frequency current that provides an optimum quality of the generated tracking error signal, and for recording data on the optical disk by applying the driving current for the laser light source superimposed with the high-frequency current of the determined amplitude.

摘要翻译： 一种光盘装置和通过以与高频电流重叠的驱动电流驱动激光光源在光盘上记录数据的记录方法。 该装置和方法包括一个控制器，用于禁止跟踪伺服，并建立从光盘的预定区域再现信号的条件，用于通过将振幅变化的高频电流叠加在激光器的驱动电流上来产生跟踪误差信号 光源，用于确定提供产生的跟踪误差信号的最佳质量的高频电流的幅度，以及通过施加叠加有高频电流的激光光源的驱动电流来将数据记录在光盘上 的幅度。