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 INFORMATION REPRODUCING METHOD, OPTICAL INFORMATION REPRODUCING APPARATUS, AND OPTICAL INFORMATION RECORDING MEDIUM
    6.
    发明申请
    OPTICAL INFORMATION REPRODUCING METHOD, OPTICAL INFORMATION REPRODUCING APPARATUS, AND OPTICAL INFORMATION RECORDING MEDIUM 审中-公开
    光信息再现方法,光信息再现设备和光信息记录介质

    公开(公告)号:US20100246348A1

    公开(公告)日:2010-09-30

    申请号:US12728888

    申请日:2010-03-22

    IPC分类号: G11B20/00

    摘要: An optical information reproducing method includes: obtaining information about a wavelength of a reference beam at recording time from a recording medium which stores main information recorded as a pattern corresponding to interference between an information beam and the reference beam and information about the wavelength of the reference beam at the recording time; determining an aiming temperature, which is a temperature of the recording medium suited to reproduce the pattern; determining an aiming incident angle, which is an incident angle of the reference beam at the reproducing time suited to reproduce the pattern; controlling the temperature of the recording medium so that the temperature of the recording medium is generally equal to the aiming temperature; and controlling the incident angle of the reference beam at the reproducing time so that the incident angle of the reference beam at the reproducing time is generally equal to the aiming incident angle.

    摘要翻译: 一种光学信息再现方法包括:从记录有与信息光束和参考光束之间的干涉相对应的模式记录的主要信息的记录介质获取关于记录时间的参考光束的波长的信息,以及关于参考光波长的信息 录音时间; 确定瞄准温度,其是适于再现图案的记录介质的温度; 确定瞄准入射角,其是在适于再现图案的再现时间的参考光束的入射角; 控制记录介质的温度,使得记录介质的温度通常等于瞄准温度; 并且在再现时间控制参考光束的入射角,使得在再现时间的参考光束的入射角度大体上等于瞄准入射角。

    HOLOGRAM RECORDING/REPRODUCING APPARATUS AND METHOD
    7.
    发明申请
    HOLOGRAM RECORDING/REPRODUCING APPARATUS AND METHOD 审中-公开
    HOLOGRAM记录/再现设备和方法

    公开(公告)号:US20100165427A1

    公开(公告)日:2010-07-01

    申请号:US12640589

    申请日:2009-12-17

    申请人: Chikara Tanioka

    发明人: Chikara Tanioka

    IPC分类号: G03H1/02 G03H1/22

    CPC分类号: G11B7/00772 G11B7/083

    摘要: An apparatus includes: a light source; a splitting unit that splits a light beam into an information beam and a reference beam; a spatial light modulator that modulates the information beam into a grating binary pattern having bright points and dark points; an irradiation unit that irradiates the reference beam and the information beam onto a hologram recording medium to record information corresponding to each of the regions of the spatial light modulator; a photodetector that detects a signal beam that is diffracted from the hologram recording medium by irradiating the hologram recording medium with a reproduction beam emitted by the light source; and a power detector that detects a difference of powers of signal beams detected by the photodetector at portions in the hologram recording medium corresponding to two of the regions of the spatial light modulator.

    摘要翻译: 一种装置,包括:光源; 分割单元,其将光束分解成信息光束和参考光束; 将信息光束调制成具有亮点和暗点的光栅二进制图案的空间光调制器; 照射单元,其将参考光束和信息光束照射到全息图记录介质上,以记录与空间光调制器的每个区域对应的信息; 光检测器,其通过用光源发射的再现光束照射全息图记录介质来检测从全息图记录介质衍射的信号光束; 以及功率检测器,其检测由所述光电检测器在对应于所述空间光调制器的两个区域的全息图记录介质中的部分处检测到的信号光束的功率差。

    Optical pickup and optical disk apparatus
    8.
    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
    9.
    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
    10.
    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。