Writable information recording and reproducing apparatus
    1.
    发明授权
    Writable information recording and reproducing apparatus 有权
    可写信息记录和再现设备

    公开(公告)号:US09064506B2

    公开(公告)日:2015-06-23

    申请号:US13618173

    申请日:2012-09-14

    IPC分类号: G11B7/09 G11B7/095 G11B7/00

    摘要: According to one embodiment, an information recording and reproducing apparatus including, a focus control module, an objective lens control module, a calculation module, and a tracking control module. If, detection the recording marks line, to focus a laser light of a second wavelength to the recording layer through an objective lens and to operation a recording layer tracking control using a tracking error signal taken out from a second reflected light and a laser light of a first wavelength to a track groove through the objective lens and to operation a guide layer tracking control to control the objective lens using a tracking error signal taken out from a first reflected light.

    摘要翻译: 根据一个实施例,一种信息记录和再现装置,包括聚焦控制模块,物镜控制模块,计算模块和跟踪控制模块。 如果检测记录标记线,则通过物镜将第二波长的激光聚焦到记录层,并且使用从第二反射光和第二反射光的激光中取出的跟踪误差信号来操作记录层跟踪控制 通过物镜的轨道槽的第一波长,并且使用从第一反射光取出的跟踪误差信号来操作引导层跟踪控制来控制物镜。

    PICKUP HEAD, INFORMATION RECORDING METHOD AND REPRODUCING METHOD
    3.
    发明申请
    PICKUP HEAD, INFORMATION RECORDING METHOD AND REPRODUCING METHOD 失效
    PICKUP头,信息记录方法和再现方法

    公开(公告)号:US20120224462A1

    公开(公告)日:2012-09-06

    申请号:US13410649

    申请日:2012-03-02

    IPC分类号: G11B7/09 G11B7/085

    摘要: According to one embodiment, a pickup head includes a plurality of light sources, a first objective lens, second objective lens, a driving unit, a first control unit, a second control unit, light receiving units. The first objective lens focuses a first light beam at a first recording layer. The second objective lens focuses a second light beam at a second recording layer. The driving unit moves the first objective lens and the second objective lens in a first direction and a second direction. The first control unit corrects displacement from target track along the first direction. The second control unit controls a moving direction of a position of the second light spot in the second direction.

    摘要翻译: 根据一个实施例,拾取头包括多个光源,第一物镜,第二物镜,驱动单元,第一控制单元,第二控制单元,光接收单元。 第一物镜将第一光束聚焦在第一记录层。 第二物镜将第二光束聚焦在第二记录层。 驱动单元沿第一方向和第二方向移动第一物镜和第二物镜。 第一控制单元沿着第一方向校正与目标轨迹的位移。 第二控制单元控制第二光点在第二方向上的位置的移动方向。

    Pickup head, information recording method and reproducing method
    5.
    发明授权
    Pickup head, information recording method and reproducing method 失效
    拾音头,信息记录方法和再现方法

    公开(公告)号:US08614936B2

    公开(公告)日:2013-12-24

    申请号:US13410649

    申请日:2012-03-02

    IPC分类号: G11B7/09

    摘要: According to one embodiment, a pickup head includes a plurality of light sources, a first objective lens, second objective lens, a driving unit, a first control unit, a second control unit, light receiving units. The first objective lens focuses a first light beam at a first recording layer. The second objective lens focuses a second light beam at a second recording layer. The driving unit moves the first objective lens and the second objective lens in a first direction and a second direction. The first control unit corrects displacement from target track along the first direction. The second control unit controls a moving direction of a position of the second light spot in the second direction.

    摘要翻译: 根据一个实施例,拾取头包括多个光源,第一物镜,第二物镜,驱动单元,第一控制单元,第二控制单元,光接收单元。 第一物镜将第一光束聚焦在第一记录层。 第二物镜将第二光束聚焦在第二记录层。 驱动单元沿第一方向和第二方向移动第一物镜和第二物镜。 第一控制单元沿着第一方向校正与目标轨迹的位移。 第二控制单元控制第二光点在第二方向上的位置的移动方向。

    Optical pickup and optical disk apparatus
    6.
    发明授权
    Optical pickup and optical disk apparatus 失效
    光学拾取和光盘设备

    公开(公告)号:US08582413B2

    公开(公告)日:2013-11-12

    申请号:US13709787

    申请日:2012-12-10

    IPC分类号: G11B7/00

    摘要: According to one embodiment, an optical pickup configured to record and to reproduce on a layer of a disk, including, a light source configured to emit a laser beam, an objective lens including a variable use magnification and configured to focus the laser beam on the layer, a collimator lens configured to change the magnification of the objective lens by moving along an optical axis direction, and a liquid crystal module configured to generate spherical aberration to cancel a coma aberration which may occur because an object point and an image point of the objective lens at the use magnification do not exist on an optical axis of the objective lens.

    摘要翻译: 根据一个实施例,一种光学拾取器,被配置为在盘的层上记录和再现,包括被配置为发射激光束的光源,包括可变放大倍率的物镜,并且被配置为将激光束聚焦在 层,准直透镜,被配置为通过沿着光轴方向移动来改变物镜的放大倍数;以及液晶模块,被配置为产生球面像差以消除可能由于对象点和图像点的像点而可能发生的彗形像差 在物镜的光轴上不存在使用放大率的物镜。

    OPTICAL PICKUP AND OPTICAL DISK APPARATUS
    7.
    发明申请
    OPTICAL PICKUP AND OPTICAL DISK APPARATUS 失效
    光学拾取和光盘设备

    公开(公告)号:US20130094341A1

    公开(公告)日:2013-04-18

    申请号:US13709787

    申请日:2012-12-10

    IPC分类号: G11B7/1378

    摘要: According to one embodiment, an optical pickup configured to record and to reproduce on a layer of a disk, including, a light source configured to emit a laser beam, an objective lens including a variable use magnification and configured to focus the laser beam on the layer, a collimator lens configured to change the magnification of the objective lens by moving along an optical axis direction, and a liquid crystal module configured to generate spherical aberration to cancel a coma aberration which may occur because an object point and an image point of the objective lens at the use magnification do not exist on an optical axis of the objective lens.

    摘要翻译: 根据一个实施例,一种光学拾取器,被配置为在盘的层上记录和再现,包括被配置为发射激光束的光源,包括可变放大倍率的物镜,并且被配置为将激光束聚焦在 层,准直透镜,被配置为通过沿着光轴方向移动来改变物镜的放大倍数;以及液晶模块,被配置为产生球面像差以消除可能由于对象点和图像点的像点而可能发生的彗形像差 在物镜的光轴上不存在使用放大率的物镜。

    INFORMATION RECORDING AND REPRODUCING APPARATUS
    8.
    发明申请
    INFORMATION RECORDING AND REPRODUCING APPARATUS 有权
    信息记录和再现设备

    公开(公告)号:US20130021892A1

    公开(公告)日:2013-01-24

    申请号:US13618173

    申请日:2012-09-14

    IPC分类号: G11B7/1374 G11B7/1376

    摘要: According to one embodiment, an information recording and reproducing apparatus including, a focus control module, an objective lens control module, a calculation module, and a tracking control module. If, detection the recording marks line, to focus a laser light of a second wavelength to the recording layer through an objective lens and to operation a recording layer tracking control using a tracking error signal taken out from a second reflected light and a laser light of a first wavelength to a track groove through the objective lens and to operation a guide layer tracking control to control the objective lens using a tracking error signal taken out from a first reflected light.

    摘要翻译: 根据一个实施例,一种信息记录和再现装置,包括聚焦控制模块,物镜控制模块,计算模块和跟踪控制模块。 如果检测记录标记线,则通过物镜将第二波长的激光聚焦到记录层,并且使用从第二反射光和第二反射光的激光中取出的跟踪误差信号来操作记录层跟踪控制 通过物镜的轨道槽的第一波长,并且使用从第一反射光取出的跟踪误差信号来操作引导层跟踪控制来控制物镜。

    INFORMATION REPRODUCTION APPARATUS AND METHOD FOR CONTROLLING SAME
    10.
    发明申请
    INFORMATION REPRODUCTION APPARATUS AND METHOD FOR CONTROLLING SAME 审中-公开
    信息再现装置及其控制方法

    公开(公告)号:US20120008476A1

    公开(公告)日:2012-01-12

    申请号:US13238612

    申请日:2011-09-21

    IPC分类号: G11B7/135

    摘要: According to one embodiment, an information reproduction apparatus includes an information acquisition unit, an error detection unit, and a control unit. The information acquisition unit is configured to irradiate a reference beam, convert the reference beam into a luminance signal, and output the luminance signal when reproducing an information recording Medium. The error detection unit is configured to detect at least one selected from a first error and a second error by extracting a feature extraction quantity from the luminance signal. The first error is of an irradiation angle of the reference beam. The second error is of at least one selected from a temperature and a wavelength of the reference beam. The control unit is configured to control at least one selected from the irradiation angle and the at least one selected from the reproduction temperature and the wavelength of the reference beam using the second error.

    摘要翻译: 根据一个实施例,信息再现设备包括信息获取单元,错误检测单元和控制单元。 信息获取单元被配置为照射参考光束,将参考光束转换成亮度信号,并且在再现信息记录介质时输出亮度信号。 误差检测单元被配置为通过从亮度信号提取特征提取量来检测从第一误差和第二误差中选出的至少一个。 第一误差是参考光束的照射角度。 第二误差是从参考光束的温度和波长中选出的至少一个。 控制单元被配置为使用第二误差来控制从照射角度和从再现温度和参考光束的波长中选择的至少一个中选择的至少一个。