Optical medium reproduction device and optical medium reproduction method

    公开(公告)号:US09843389B2

    公开(公告)日:2017-12-12

    申请号:US14910396

    申请日:2014-06-26

    申请人: Sony Corporation

    摘要: There is provided an optical medium reproduction device that optically reproduces an optical medium in which a plurality of tracks are provided, the optical medium reproduction device including: a detection unit configured to divide a cross-section of a beam returning from the optical medium into at least one channel corresponding to an outer region in a radial direction, at least one channel corresponding to a region that is different in position in a tangential direction, and a channel corresponding to the other region, and form detection signals of the channels; a multi-input equalizer unit including a plurality of equalizer units to which the detection signals of the plurality of channels are supplied, respectively, the multi-input equalizer unit being configured to calculate outputs of the plurality of equalizer units and output the outputs as an equalized signal in a manner that a phase difference between two of the regions is set to be a predetermined phase difference; and a binarization unit configured to perform a binarization process on the equalized signal to obtain binary data.

    REPRODUCING APPARATUS AND REPRODUCING METHOD
    2.
    发明申请
    REPRODUCING APPARATUS AND REPRODUCING METHOD 有权
    再现设备和再现方法

    公开(公告)号:US20150036472A1

    公开(公告)日:2015-02-05

    申请号:US14320856

    申请日:2014-07-01

    申请人: Sony Corporation

    IPC分类号: G11B20/10

    摘要: Provided is a reproducing apparatus including: an optical system that obtains a signal light by radiating light emitted from a light source and generates a reference light from the light emitted from the light source, with respect to a recording medium, and that generates first to fourth groups of the signal light beams and the reference light beams, with respect to the superposed light in which the signal light and the reference light are superposed onto each other; a light receiving unit that receives light beams of the first to fourth groups of the signal light beams and the reference light beams respectively through first to fourth light receiving elements; and a reproduction signal generation circuit that calculates a first differential signal and a second differential signal, and that generates a reproduction signal by performing an arithmetic operation using the first and second differential signals.

    摘要翻译: 提供一种再现装置,包括:光学系统,通过照射从光源发出的光来获得信号光,并从相对于记录介质从光源发射的光产生参考光,并且产生第一至第四 信号光束和参考光束的组相对于信号光和参考光彼此重叠的叠加光; 光接收单元,其分别通过第一至第四光接收元件接收第一至第四组信号光束和参考光束的光束; 以及再现信号产生电路,其计算第一差分信号和第二差分信号,并且通过使用第一和第二差分信号执行算术运算来产生再现信号。

    Reproducing device and reproducing method
    3.
    发明授权
    Reproducing device and reproducing method 有权
    再现装置和再现方法

    公开(公告)号:US08867324B2

    公开(公告)日:2014-10-21

    申请号:US13953809

    申请日:2013-07-30

    申请人: Sony Corporation

    摘要: A reproducing device includes a light generation and emission unit that obtains signal light as reflection light, which reflects recording signals of a land and a groove, by irradiating an optical recording medium with light and generates reference light so as to emit the signal light and the reference light in a superposed manner, a detection optical system that generates a first combination of signal light and reference light, a second combination of signal light and reference light, a third combination of signal light and reference light, and a fourth combination of signal light and reference light respectively, a light receiving unit in which the first to fourth combinations of signal light and reference light are respectively received by first to fourth light receiving elements, and a reproduction unit that reproduces the recording signals of the land and the groove on the basis of first to fourth light receiving signals.

    摘要翻译: 再现装置包括:通过用光照射光记录介质来获得作为反射光的信号光的光产生和发射单元,其反射脊和凹槽的记录信号,并产生参考光以发射信号光,并且 参考光,叠加的参考光,产生信号光和参考光的第一组合的检测光学系统,信号光和参考光的第二组合,信号光和参考光的第三组合,以及信号光的第四组合 和参考光,分别由第一至第四光接收元件分别接收信号光和参考光的第一至第四组合的光接收单元,以及在第一至第四光接收元件上再现区域和凹槽的记录信号的再现单元 第一至第四光接收信号的基础。

    Information processing device, information processing method, and program

    公开(公告)号:US10373640B2

    公开(公告)日:2019-08-06

    申请号:US15780090

    申请日:2017-01-12

    申请人: SONY CORPORATION

    摘要: Provided are a device and a method which are capable of performing crosstalk-removed high-quality data reproduction from a high-density recording type optical disc. The device includes a photo detector that outputs a readout signal from a reproduction track of an information recording disc, an adjacent track reproduction binary signal supply unit that outputs a binary signal (binary data) which is a reproduction signal of an adjacent track of the reproduction track, a multi-input adaptive equalizer that includes an equalizer unit that receives the readout signal from the reproduction track and an adjacent track reproduction binary signal and outputs an equalization signal by an adaptive equalization process based on an input signal, and a binarization processing unit that executes a binarization process based on the equalization signal and generates a reproduction signal of the reproduction track.

    OPTICAL MEDIUM REPRODUCTION DEVICE AND OPTICAL MEDIUM REPRODUCTION METHOD
    7.
    发明申请
    OPTICAL MEDIUM REPRODUCTION DEVICE AND OPTICAL MEDIUM REPRODUCTION METHOD 有权
    光学介质复制设备和光学介质再现方法

    公开(公告)号:US20160218808A1

    公开(公告)日:2016-07-28

    申请号:US14910396

    申请日:2014-06-26

    申请人: SONY CORPORATION

    摘要: There is provided an optical medium reproduction device that optically reproduces an optical medium in which a plurality of tracks are provided, the optical medium reproduction device including: a detection unit configured to divide a cross-section of a beam returning from the optical medium into at least one channel corresponding to an outer region in a radial direction, at least one channel corresponding to a region that is different in position in a tangential direction, and a channel corresponding to the other region, and form detection signals of the channels; a multi-input equalizer unit including a plurality of equalizer units to which the detection signals of the plurality of channels are supplied, respectively, the multi-input equalizer unit being configured to calculate outputs of the plurality of equalizer units and output the outputs as an equalized signal in a manner that a phase difference between two of the regions is set to be a predetermined phase difference; and a binarization unit configured to perform a binarization process on the equalized signal to obtain binary data.

    摘要翻译: 提供了一种光学再现其中提供多个轨道的光学介质的光学介质再现装置,光学介质再现装置包括:检测单元,被配置为将从光学介质返回的光束的横截面分成 至少一个对应于沿径向的外部区域的通道,至少一个对应于在切线方向上位置不同的区域的通道和与另一个区域相对应的通道,并形成通道的检测信号; 多输入均衡器单元,包括分别提供多个通道的检测信号的多个均衡器单元,多输入均衡器单元被配置为计算多个均衡器单元的输出并将输出输出为 以两个区域之间的相位差被设定为预定的相位差的方式进行均衡的信号; 以及二值化单元,被配置为对所述均衡信号执行二值化处理以获得二进制数据。

    Optical information recording medium and optical information recording medium reproducing apparatus
    9.
    发明授权
    Optical information recording medium and optical information recording medium reproducing apparatus 有权
    光信息记录介质和光信息记录介质再现装置

    公开(公告)号:US08929190B2

    公开(公告)日:2015-01-06

    申请号:US13898511

    申请日:2013-05-21

    申请人: Sony Corporation

    摘要: An optical information recording medium of a CAV or a zone CAV, in which a groove wobbling continuously is formed in advance so as to record information to a groove and a land abutting the groove, the groove alternately has a first wobble position in which a wobble fundamental wave form has been modulated by groove address information, and a second wobble position of the wobble fundamental wave form, and in grooves of both sides by which the land is interposed, the first wobble position and the second wobble position are different from each other in position.

    摘要翻译: CAV或CAV的光学信息记录介质,其中预先形成连续摆动的凹槽,以便将信息记录到凹槽和邻接凹槽的区域中,所述凹槽交替地具有第一摆动位置,其中摆动 基本波形已经通过凹槽地址信息和摆动基波形式的第二摆动位置调制,并且在两个凹槽中插入平台,第一摆动位置和第二摆动位置彼此不同 在位。

    OPTICAL PICKUP AND OPTICAL DISC DEVICE
    10.
    发明申请
    OPTICAL PICKUP AND OPTICAL DISC DEVICE 有权
    光学拾取和光盘设备

    公开(公告)号:US20140068642A1

    公开(公告)日:2014-03-06

    申请号:US13966503

    申请日:2013-08-14

    申请人: Sony Corporation

    IPC分类号: G11B7/1381

    摘要: There is provided an optical pickup including a light source, an objective lens configured to focus light from the light source onto one signal face of an optical disc, the optical disc including two or more signal faces, each of the signal faces having a groove formed therein, a photodetector configured to receive returning rays from the optical disc, the photodetector having a light receiving face divided into four light receiving regions by a dividing line that is substantially parallel to a track direction of the optical disc and by a dividing line that is substantially perpendicular to the track direction, and a shading unit disposed at an incident side of the photodetector and configured to block, of returning rays from a signal face other than the one signal face of the optical disc, at least a diffracted ray that is diffracted by the groove.

    摘要翻译: 提供一种光拾取器,包括光源,被配置为将来自光源的光聚焦到光盘的一个信号面上的物镜,该光盘包括两个或更多个信号面,每个信号面具有形成的沟槽 其中,光电检测器被配置为从光盘接收返回的光线,光电检测器具有通过基本上平行于光盘的轨道方向的分割线分割成四个光接收区域的光接收面, 基本上垂直于光道方向的遮光单元,以及设置在光电检测器的入射侧并被配置为阻挡从光盘的一个信号面以外的信号面返回光线的至少衍射的衍射光线的遮光单元 通过凹槽。