-
1.发明授权Optical disk drive with spherical aberration measurement and method of measuring spherical aberration in an optical disk drive 失效具有球面像差测量的光盘驱动器和测量光盘驱动器中的球面像差的方法公开(公告)号：US07859967B2
公开(公告)日：2010-12-28
申请号：US11847522
申请日：2007-08-30
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/0945 , G11B7/0948 , G11B2007/0013
摘要： The invention relates to an optical disk drive. The optical disk drive has an objective lens to be driven by a focus actuator with a focus offset for focusing an incident beam onto an optical disk into a spot with a spherical aberration, and a processor to derive a first and a second characteristic from a sensor output signal and obtain a spherical aberration correction value (SA) from a pre-determined function, the pre-determined function defining a spherical aberration correction value in dependence on a focus offset difference value (ΔFO). The focus offset difference value (ΔFO) is determined from a difference between a second optimal focus offset at which the second characteristic is optimal and a first optimal focus offset at which the first characteristic is optimal. The spherical aberration correction value (SA) can be used to achieve a correction to the spherical aberration of the spot.
摘要翻译： 本发明涉及一种光盘驱动器。 光盘驱动器具有由具有聚焦偏移的聚焦致动器驱动的物镜，用于将入射光束聚焦到光盘上，使其具有球面像差，并且处理器从传感器得到第一和第二特性 输出信号，并且从预定函数获得球面像差校正值（SA），所述预定函数根据焦点偏移差值（＆Dgr; FO）定义球面像差校正值。 根据第二特性最佳的第二最佳聚焦偏移与第一特性最优的第一最佳聚焦偏移之间的差确定聚焦偏移差值（＆Dgr; FO）。 可以使用球面像差校正值（SA）来实现斑点的球面像差的校正。
-
2.发明申请OPTICAL DISK DRIVE WITH SPHERICAL ABERRATION MEASUREMENT AND METHOD OF MEASURING SPHERICAL ABERRATION IN AN OPTICAL DISK DRIVE 失效具有球形测量的光盘驱动器以及在光盘驱动器中测量球形偏差的方法公开(公告)号：US20090059742A1
公开(公告)日：2009-03-05
申请号：US11847522
申请日：2007-08-30
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/0945 , G11B7/0948 , G11B2007/0013
摘要： The invention relates to an optical disk drive. The optical disk drive has an objective lens to be driven by a focus actuator with a focus offset for focusing an incident beam onto an optical disk into a spot with a spherical aberration, and a processor to derive a first and a second characteristic from a sensor output signal and obtain a spherical aberration correction value (SA) from a pre-determined function, the pre-determined function defining a spherical aberration correction value in dependence on a focus offset difference value (ΔFO). The focus offset difference value (ΔFO) is determined from a difference between a second optimal focus offset at which the second characteristic is optimal and a first optimal focus offset at which the first characteristic is optimal. The spherical aberration correction value (SA) can be used to achieve a correction to the spherical aberration of the spot.
摘要翻译： 本发明涉及一种光盘驱动器。 光盘驱动器具有由具有聚焦偏移的聚焦致动器驱动的物镜，用于将入射光束聚焦到光盘上，使其具有球面像差，并且处理器从传感器得到第一和第二特性 输出信号，并从预定函数获得球面像差校正值（SA），所述预定函数根据聚焦偏移差值（DeltaFO）定义球面像差校正值。 根据第二特性最优的第二最佳聚焦偏移与第一特性最优的第一最佳聚焦偏移之间的差确定聚焦偏移差值（DeltaFO）。 可以使用球面像差校正值（SA）来实现斑点的球面像差的校正。
-
公开(公告)号：US07038982B2
公开(公告)日：2006-05-02
申请号：US10207534
申请日：2002-07-29
IPC分类号： G11B5/09
CPC分类号： G11B7/126 , G11B7/0045 , G11B19/26 , G11B20/182
摘要： The invention relates to a method and recording device for selecting an optimal write strategy for a specific type of optical recording disk. Such an optimal write strategy is selected even when the optical recording disk is of a type that has not been previously encountered or when the optical recording disk is otherwise unrecognized by an optical disk drive. The optimal write strategy and associated settings are selected from a set of write strategies stored in a disk drive. The disk drive bases its selection of the write strategy on the performance results of test writings conducted on the optical disk. The method entails testing the write strategies first at the maximum possible write speed and if necessary, at successively lower speeds until a write strategy that achieves a minimum acceptable write quality is identified or until the minimum write speed is reached. The selected optimal write strategy may be stored in the recording device or, alternatively, on the optical recording disk itself.
-
-
搜索结果
3 条记录 (耗时 0.018 秒)
