公开(公告)号：US20190325908A1

公开(公告)日：2019-10-24

申请号：US16460435

申请日：2019-07-02

申请人： SONY CORPORATION

发明人： Kimihiro SAITO ,  Kenji YAMAMOTO ,  Noriaki NISHI ,  Junya SHIRAISHI ,  Nobuyoshi KOBAYASHI

IPC分类号： G11B7/005 ,  G11B20/10 ,  G11B7/131 ,  G11B7/133

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.

公开(公告)号：US20180358047A1

公开(公告)日：2018-12-13

申请号：US15780090

申请日：2017-01-12

申请人： SONY CORPORATION

发明人： Kimihiro SAITO ,  Kenji YAMAMOTO ,  Noriaki NISHI ,  Junya SHIRAISHI ,  Nobuyoshi KOBAYASHI

IPC分类号： G11B7/005 ,  G11B7/131 ,  G11B20/10

CPC分类号： G11B7/005 ,  G11B7/131 ,  G11B7/133 ,  G11B20/10009 ,  G11B20/10046

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.

公开(公告)号：US20160225400A1

公开(公告)日：2016-08-04

申请号：US14974335

申请日：2015-12-18

申请人： SONY CORPORATION

发明人： Tomoya IKUTA ,  Takeshi KUBO ,  Takashi NAKAO ,  Kimihiro SAITO ,  Kenji YAMAMOTO

IPC分类号： G11B7/1392 ,  G11B7/007 ,  G11B7/09

CPC分类号： G11B7/13927 ,  G11B7/0037 ,  G11B7/00718 ,  G11B7/08511 ,  G11B7/0908 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/1353 ,  G11B7/1378 ,  G11B7/1381 ,  G11B7/1395

摘要： There is provided an optical disc device that performs recording on a land and a groove, including an optical path splitter configured to split a luminous flux returning from an optical disc into first and second optical paths, a first detector configured to receive a whole of the luminous flux that has passed through the first optical path, a second detector configured to receive a luminous flux of an inside part of the luminous flux that has passed through the second optical path, a spherical aberration error signal generation unit configured to generate a spherical aberration error signal on the basis of a difference between a first focus error signal obtained on the basis of a detection signal of the first detector and a second focus error signal obtained on the basis of a detection signal of the second detector, a spherical aberration correction unit, and an adjustment unit.

摘要翻译： 提供了一种光盘装置，其在陆地和凹槽上执行记录，包括光路分路器，其构造成将从光盘返回的光束分成第一和第二光路;第一检测器，被配置为接收整个 已经通过第一光路的光通量，被配置为接收通过第二光路的光通量的内部的光通量的第二检测器，被配置为产生球面像差的球面像差误差信号生成单元 基于第一检测器的检测信号获得的第一聚焦误差信号与基于第二检测器的检测信号获得的第二聚焦误差信号之间的差异的误差信号，球面像差校正单元 ，和调整单元。

公开(公告)号：US20140355404A1

公开(公告)日：2014-12-04

申请号：US14278735

申请日：2014-05-15

申请人： Sony Corporation

发明人： Kenji YAMAMOTO ,  Takashi NAKAO ,  Kimihiro SAITO

IPC分类号： G11B20/10

CPC分类号： G11B7/005 ,  G11B7/135 ,  G11B7/1369 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1381 ,  G11B7/1395 ,  G11B7/1398 ,  G11B20/10009

摘要： An optical medium reproducing apparatus that optically reproduces an optical medium on which a plurality of tracks is formed in which a beam returning from the optical medium is divided into a first region of an outside portion and a second region of an inside region, according to the shape of the pupil of an object lens, and crosstalk between the tracks is reduced by using a first detection signal of the first region and a second detection signal of the second region.

摘要翻译： 一种光学介质再现装置，其光学地再现其上形成有多个光道的光学介质，其中从光学介质返回的光束被划分为外部的第一区域和内部区域的第二区域，根据 通过使用第一区域的第一检测信号和第二区域的第二检测信号来减小物镜的光瞳形状和轨道之间的串扰。