公开(公告)号：US20130322228A1

公开(公告)日：2013-12-05

申请号：US13898511

申请日：2013-05-21

申请人： Sony Corporation

发明人： Kimihiro Saito ,  Toshihiro Horigome

IPC分类号： G11B7/007

CPC分类号： G11B7/00718 ,  G11B7/24082 ,  G11B27/24 ,  G11B2007/00754

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。

公开(公告)号：US20180315448A1

公开(公告)日：2018-11-01

申请号：US15737771

申请日：2016-04-20

申请人： SONY CORPORATION

发明人： Noriaki Nishi ,  Kimihiro Saito ,  Nobuhiko Ando ,  Fumiaki Nakano ,  Yuuichi Suzuki ,  Hiroaki Nakagawa ,  Tetsuya Inoue ,  Yutaka Tentaku

IPC分类号： G11B7/09 ,  G11B20/10

CPC分类号： G11B7/0938 ,  G11B7/0901 ,  G11B7/0929 ,  G11B7/0941 ,  G11B7/133 ,  G11B7/1381 ,  G11B20/10046

摘要： A cross section of a luminous flux of returning light from a disc is split into a plurality of regions, and an operation is performed so that a weighting of a light amount of a region which has favorable symmetry in a radial direction and is formed on a circumference of an ellipse among the split regions is increased. Further, a lens shift detection signal is formed, and a lens shift detection signal is canceled from a push-pull signal.

公开(公告)号：US20140140185A1

公开(公告)日：2014-05-22

申请号：US14077291

申请日：2013-11-12

申请人： Sony Corporation

发明人： Kimihiro Saito

IPC分类号： G11B7/1372

CPC分类号： G11B7/1372 ,  G11B7/0051 ,  G11B7/00718 ,  G11B7/1353 ,  G11B7/1369 ,  G11B7/1381

摘要： There is provided a playback device including a light source, an objective lens that radiates light emitted onto an optical recording medium, and onto which is incident reflected light obtained from a recording surface of the optical recording medium, a condenser lens that condenses the reflected light, a photodetecting section configured to, provided that a confocal position is a focal position of the condenser lens, λ is a wavelength of light radiated onto the optical recording medium, and NA is a numerical aperture of the objective lens, extract and detect light within a range of a diameter less than 1.5λ/NA centered on an optical axis at the confocal position, and a phase difference imparting section that imparts a designated phase difference between a reflected light component from a readout track and a reflected light component from a track neighboring the readout track.

摘要翻译： 提供了一种播放装置，包括光源，发射到光记录介质上的光的物镜，并且从光记录介质的记录表面获得的入射反射光入射到其上;聚光透镜，其将反射光 所述光检测部被配置为使得共焦焦点位置是所述聚光透镜的焦点位置，λ是照射到所述光学记录介质上的光的波长，并且NA是所述物镜的数值孔径，提取并检测所述物镜的光线 以共焦点位置的光轴为中心的直径小于1.5λ/ NA的范围，以及相位差赋予部，其将来自读出轨迹的反射光分量与来自轨迹的反射光分量之间的指定相位差赋予相位差赋予部 邻近读出轨道。

公开(公告)号：US20140064050A1

公开(公告)日：2014-03-06

申请号：US14011269

申请日：2013-08-27

申请人： Sony Corporation

发明人： Kimihiro Saito ,  Junya Shiraishi

IPC分类号： G11B27/36

CPC分类号： G11B27/36 ,  G11B7/0956 ,  G11B20/10046 ,  G11B20/10472

摘要： There is provided a skew detection method including supplying reproduction signals, which are respectively reproduced approximately simultaneously from at least two tracks including a first adjacent track and a second adjacent track located on both sides of a main track, to first and second filters, causing a combining unit to combine output signals of the first and second filters with a reproduction signal which is reproduced from the main track approximately simultaneously with the first adjacent track and the second adjacent track so as to cancel crosstalk, causing a coefficient control unit to obtain an error with a target value of the output signal of the combining unit and control coefficients of the first and second filters so as to reduce the error, and detecting a skew of an optical disc from values of coefficients of predetermined taps of the first and second filters.

摘要翻译： 提供了一种偏斜检测方法，包括提供再现信号，它们分别从包括位于主轨道两侧的第一相邻轨道和第二相邻轨道的至少两条轨道大致同时地再现到第一和第二滤波器， 组合单元将第一和第二滤波器的输出信号与从主轨道大致同时与第一相邻轨道和第二相邻轨道再现的再现信号组合以消除串扰，从而使系数控制单元获得误差 具有组合单元的输出信号的目标值和第一和第二滤波器的控制系数，以便减少误差，并根据第一和第二滤波器的预定抽头的系数的值检测光盘的偏斜。

公开(公告)号：US20140044940A1

公开(公告)日：2014-02-13

申请号：US13957244

申请日：2013-08-01

申请人： Sony Corporation

发明人： Tomoya Ikuta ,  Fumisada Maeda ,  Kimihiro Saito ,  Takashi Nakao ,  Takahiro Miura ,  Yoshiaki Sakakura ,  Yojiro Sumi

IPC分类号： G11B7/2572 ,  G11B7/26

CPC分类号： G11B7/2572 ,  G11B7/24044 ,  G11B7/26 ,  Y10T428/2495 ,  Y10T428/31938

摘要： An optical recording medium includes a first transparent film layer, a second transparent film layer, and a recording material layer sandwiched between the first transparent film layer and the second transparent film layer. The recording material layer includes a hologram recording material.

摘要翻译： 光记录介质包括第一透明膜层，第二透明膜层和夹在第一透明膜层和第二透明膜层之间的记录材料层。 记录材料层包括全息图记录材料。

公开(公告)号：US10014023B2

公开(公告)日：2018-07-03

申请号：US15505442

申请日：2015-11-09

申请人： SONY CORPORATION

发明人： Noriaki Nishi ,  Kimihiro Saito ,  Nobuhiko Ando ,  Junya Shiraishi ,  Yutaka Tentaku

IPC分类号： G11B7/00 ,  G11B7/007 ,  G11B7/0045 ,  G11B20/00 ,  G11B7/26 ,  B29D17/00 ,  G11B7/258 ,  G11B23/28

CPC分类号： G11B7/007 ,  B29D17/005 ,  G11B7/00454 ,  G11B7/005 ,  G11B7/1381 ,  G11B7/258 ,  G11B7/263 ,  G11B20/00086 ,  G11B20/10009 ,  G11B20/10046 ,  G11B23/281 ,  G11B23/284

摘要： Provided is an optical medium reproducing apparatus including: a detection unit that divides a luminous flux into a plurality of regions including a first region and a second region which are different in a position in a radial direction and/or a tangential direction, and combines a plurality of detection signals in correspondence with the amount of light that is incident to each of the plurality of regions with combination patterns which are selected to form signals of a plurality of channels; a multi-input equalizer unit that includes a plurality of equalizer units to which the signals of the plurality of channels are respectively supplied, computes outputs of the plurality of equalizer units, and outputs the resultant value as an equalization signal; and a binarization unit that performs binarization processing with respect to the equalization signal to obtain binary data. An addition signal channel including a constant multiplication of detection signals of the first region and the second region is included in at least one of the combination patterns.

公开(公告)号：US09990952B2

公开(公告)日：2018-06-05

申请号：US15548520

申请日：2015-12-09

申请人： Sony Corporation

发明人： Noriaki Nishi ,  Kimihiro Saito ,  Junya Shiraishi ,  Nobuhiko Ando

IPC分类号： G11B7/135 ,  G11B7/005 ,  G11B20/10 ,  G11B7/1381 ,  G11B7/007

CPC分类号： G11B7/005 ,  G11B7/0901 ,  G11B7/0943 ,  G11B7/133 ,  G11B7/1381 ,  G11B20/10009 ,  G11B20/10046 ,  G11B2007/00709 ,  G11B2220/2541

摘要： There is provided an optical medium reproducing device configured to optically reproduce an optical medium including a plurality of tracks formed, the optical medium reproducing device including: an optical filter configured to receive an incident returned light beam from the optical medium, and to spatially and optically form a plurality of signals having different bands in a tangential direction and a radial direction; an arithmetic unit configured to operate the plurality of first signals formed by the optical filter so as to form a plurality of channels of second signals; and an electrical filter configured to individually receive the second signals, and to perform processing to the second signals so as to acquire a reproduced signal.

公开(公告)号：US09916856B2

公开(公告)日：2018-03-13

申请号：US15543152

申请日：2015-11-19

申请人： SONY CORPORATION

发明人： Koji Sekiguchi ,  Kimihiro Saito

IPC分类号： G11B7/00 ,  G11B5/09 ,  G11B20/10 ,  G11B7/007

CPC分类号： G11B20/10046 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/131 ,  G11B7/1365 ,  G11B20/10009

摘要： A set of first signal light and reference light with a phase difference of almost 0 degree, a set of second signal light and reference light with a phase difference of almost 180 degrees, a set of third signal light and reference light with a phase difference of almost 90 degrees, and a set of fourth signal light and reference light with a phase difference of almost 270 degrees are generated. A first differential signal as a difference between a first light-receiving signal obtained by a first light-receiving element and a second light-receiving signal obtained by a second light-receiving element is calculated, and a second differential signal as a difference between a third light-receiving signal obtained by a third light-receiving element and a fourth light-receiving signal obtained by a fourth light-receiving element is calculated. The first differential signal and the second differential signal are supplied to respective FIR filters. An equalization error is formed from output signals from the FIR filters. Tap coefficients for the FIR filters are controlled to minimize the equalization error.

公开(公告)号：US20160155468A1

公开(公告)日：2016-06-02

申请号：US14900322

申请日：2014-04-11

申请人： SONY CORPORATION

发明人： Noriaka Nishi ,  Kimihiro Saito ,  Junya Shiraushi ,  Takashi Nakao ,  Kenji Yamamoto

IPC分类号： G11B20/10

CPC分类号： G11B20/10212 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/0943 ,  G11B7/133 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/24

摘要： An optical medium reproduction apparatus for optically reproducing an optical medium where a plurality of tracks are formed, including: a detection unit for splitting a cross section of a beam returned from the optical medium into a plurality of regions and for forming respective detection signals of a plurality of the regions; a multiple input adaptive equalizer having a plurality of adaptive equalizer units, wherein the respective detection signals of a plurality of the regions are inputted into the plurality of adaptive equalizer units, and the outputs of the plurality of adaptive equalizer units are computed to from equalization signals; a binarization unit for binarizing the equalization signals to provide binary data; and an equalization error computing unit for determining an equalization error from equalization target signals provided based on the binary data from the binarization unit and the equalization signals outputted from the multiple input adaptive equalizer, and providing the adaptive equalizer units with the equalization error as control signals for adaptive equalization.

摘要翻译： 一种用于光学再现其中形成有多个轨道的光学介质的光学介质再现装置，包括：检测单元，用于将从光学介质返回的光束的横截面分割成多个区域，并形成各个检测信号 多个地区; 具有多个自适应均衡器单元的多输入自适应均衡器，其中多个区域的各个检测信号被输入到多个自适应均衡器单元中，并且从均衡信号计算多个自适应均衡器单元的输出 ; 用于二进制化均衡信号以提供二进制数据的二值化单元; 以及均衡误差计算单元，用于基于来自二值化单元的二进制数据和从多输入自适应均衡器输出的均衡信号提供的均衡目标信号来确定均衡误差，并且将具有均衡误差的自适应均衡器单元作为控制信号 用于自适应均衡。

公开(公告)号：US09245570B2

公开(公告)日：2016-01-26

申请号：US14320856

申请日：2014-07-01

申请人： Sony Corporation

发明人： Kimihiro Saito ,  Koji Sekiguchi

IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B7/005

CPC分类号： G11B7/125 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/1365 ,  G11B7/1395

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，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。