公开(公告)号：JPH09180374A

公开(公告)日：1997-07-11

申请号：JP33967495

申请日：1995-12-26

Applicant: SONY CORP

Inventor： HORIGOME TOSHIHIRO ,  KOBAYASHI SEIJI

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/005 ,  G11B20/22 ,  G11B19/04

Abstract: PROBLEM TO BE SOLVED: To automatically adjust coefficients for generating crosstalk component signals by adjusting amplitudes of adjacent track reproducing signals in a device eliminating crosstalk components from adjacent tracks from the reproduced signal of a readout objective track. SOLUTION: A crosstalk component signal generating means 20 generates respective crosstalk component signals 20E, 20F by adjusting amplitudes of signals 21a, 22a in which high frequency components of respective adjacent track reproducing signals ERF, FRF are suppressed based on respective coefficients KE, KF. A subtracting means 30 outputs a crosstalk component eliminated signal by subtracting respective crosstalk component signals 20E, 20F from a main reproduced signal MRF. The correlation degree calculating means 42, 52 in respective coefficient setting means 40, 50 calculates correlation degrees among the crosstalk component eliminated signal and the signals 21a, 22a in which high frequency components are suppressed. Coefficient increasing or decreasing means 43, 53 increase respective coefficients KE, KF when the correlation degrees are positive and decrease the coefficients when the correlation degrees are negative.

公开(公告)号：JPH09171620A

公开(公告)日：1997-06-30

申请号：JP33184895

申请日：1995-12-20

Applicant: SONY CORP

Inventor： HORIGOME TOSHIHIRO ,  KOBAYASHI SEIJI

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/005 ,  G11B7/09 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To perform tracking servo control in the way of 3 beams and also to electrically reduce cross talk based on a signal read out by the same 3 beams. SOLUTION: Parts deviated from an objective read-out track by 1/4 track pitch from the centers of individual adjacent tracks are irradiated by an optical pickup 4 with its two sub-beams respectively under the state of its main beam irradiating the objective track. The tracking servo control is performed by a tracking servo circuit part 6 with a difference of each of read-out signals E-RF and F-RF of the individual sub-beams as an error signal respectively. In a cross talk eliminating circuit part 9, a cross talk component signal is generated by adjusting the read-out signals E-RF and F-RF of the individual sub-beams in frequency characteristic and amplitude, and the generated cross talk component signal is subtracted from a main read-out signal M-RF to obtain the main read-out signal 9a with reduced cross talk.

公开(公告)号：JPH08297849A

公开(公告)日：1996-11-12

申请号：JP10426895

申请日：1995-04-27

Applicant: SONY CORP

Inventor： HORIGOME TOSHIHIRO

IPC: G11B20/18 ,  G11B7/095

Abstract: PURPOSE: To contribute to the miniaturization of a disk reproducing device, etc., provided with a drive unit by making the whole drive unit enable to be miniaturized. CONSTITUTION: A chassis for fixing a spindle motor 1 and a thread motor 3 respectively and a wiring board for arranging a driving IC 100 with one chip structure to control the rotation of each of these motors are integrally formed as a chassis 6. Each motor 1, 3 and the driving IC 100 are provided on this chassis 6. By this arrangement, the chassis and the wiring board are integrated, moreover the driving IC 100 for controlling to drive each motor 1, 3 is made with one chip.

公开(公告)号：JP2015036996A

公开(公告)日：2015-02-23

申请号：JP2013168028

申请日：2013-08-13

Applicant: ソニー株式会社 ,  Sony Corp

Inventor： HORIGOME TOSHIHIRO

IPC: G11B7/007 ,  G11B7/24082 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18

Abstract: 【課題】アドレスを隣接トラック間で同一の第1のデータと、隣接トラック間で異なる第2のデータとに分け、それぞれに適した変調方式でもって変調することによって、アドレスを良好に再生できる。【解決手段】CAVまたはゾーンCAVの光情報記録媒体であって、連続的にウォブルするグルーブが予め形成され、グルーブおよびグルーブに隣接するランドに情報を記録するようになされ、ウォブルを変調することによって、アドレス情報が記録され、アドレス情報は、隣接トラック間で同一の第1のデータと、隣接トラック間で異なる第2のデータとを含み、第1のデータと第2のデータとが異なる第1および第2の変調方式によってそれぞれ変調されて記録されている光情報記録媒体である。【選択図】図5

Abstract translation: 要解决的问题：通过将地址分离为相邻轨道之间的第一相同数据和相邻轨道之间的第二不同数据，使得能够非常好地再现地址，并且通过分别合适的调制方案进行调制。解决方案：在光信息记录 恒定角速度（CAV）或区域CAV的介质，预先形成连续摇摆的组，使信息被记录在组中和邻近组的陆地。 通过调制摆动，记录地址信息，并且地址信息包括相邻轨道之间的第一相同数据和相邻轨道之间的第二不同数据。 第一数据和第二数据分别由第一调制方式和第二调制方式调制，并且光信息记录介质记录有调制的第一和第二数据。

公开(公告)号：JP2014002808A

公开(公告)日：2014-01-09

申请号：JP2012136202

申请日：2012-06-15

Applicant: Sony Corp ,  ソニー株式会社

Inventor： ANDO HIDEKI ,  HORIGOME TOSHIHIRO

IPC: G11B7/007 ,  G11B7/005 ,  G11B7/24082

CPC classification number: G11B7/00718 ,  G11B7/24082 ,  G11B27/28 ,  G11B2007/00754 ,  G11B2220/2541

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording medium that can be fabricated without use of a highly difficult mastering technology and that allows address information to be efficiently recorded by inhibiting reduction in a data region for recording user data and so on.SOLUTION: An optical-information recording medium includes grooves and lands that are alternately provided. Address information on a groove is recorded with a wobble of the groove, and address information on a land is recorded by a combination of wobbles of the grooves provided on two opposite sides of the land.

Abstract translation: 要解决的问题：提供一种可以在不使用高难度的母盘制作技术的情况下制造的光学信息记录介质，并且通过禁止用于记录用户数据等的数据区域的减少来有效地记录地址信息。解决方案： 光信息记录介质包括交替设置的凹槽和平台。 通过凹槽的摆动来记录凹槽上的地址信息，并且通过在陆地的两个相对侧上设置的凹槽的摆动的组合来记录陆地上的地址信息。

公开(公告)号：JP2009277292A

公开(公告)日：2009-11-26

申请号：JP2008127354

申请日：2008-05-14

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HORIGOME TOSHIHIRO ,  SAITO KIMIHIRO ,  TANABE NORIHIRO

IPC: G11B7/135 ,  G11B7/0065

Abstract: PROBLEM TO BE SOLVED: To reduce loads on servo control. SOLUTION: A first optical beam Lb1 and a second optical beam Lb2 sharing an optical axis Lx are emitted via one and the same objective lens 47, and the second optical beam Lb2 is reflected on a reflection layer 104 to superimpose the first optical beam Lb1 and the second optical beam Lb2 on each other from opposite directions. In this case, in the optical pickup 26, the aperture of the second optical beam Lb2 is restricted, for controlling so that a beam west diameter S2 of a second reflected optical beam Lb2r becomes larger than a beam west diameter S1 of the first optical beam Lb1. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：减少伺服控制的负载。 解决方案：经由同一物镜47发射共享光轴Lx的第一光束Lb1和第二光束Lb2，并且第二光束Lb2在反射层104上反射以将第一光学 光束Lb1和第二光束Lb2彼此相反。 在这种情况下，在光拾取器26中，第二光束Lb2的孔径被限制，以便控制第二反射光束Lb2r的光束西直径S2变得大于第一光束Lb2的光束西直径S1 Lb1。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009238280A

公开(公告)日：2009-10-15

申请号：JP2008081129

申请日：2008-03-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HORIGOME TOSHIHIRO ,  UEDA DAISUKE ,  IWAMURA TAKASHI

IPC: G11B7/0045 ,  G11B7/125

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording device and an optical recording method, for recording a recording mark of a desired shape in a desired position by using a pulse laser light source, and a pulse generator. SOLUTION: The timing (A) of pulse emission of a pulse laser (light source) is synchronized with a modulation signal (C) which is a recording signal. Thus, when a pulse laser light from the pulse laser (light source) is modulated by the modulation signal, the number of pulses applied to a recording medium is accurately controlled as indicated by (D), and a recording mark M of a desired shape is recorded in a desired position as indicated by (E). COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种光学记录装置和光学记录方法，用于通过使用脉冲激光光源和脉冲发生器将期望形状的记录标记记录在期望的位置。 解决方案：脉冲激光器（光源）的脉冲发射的定时（A）与作为记录信号的调制信号（C）同步。 因此，当通过调制信号调制来自脉冲激光（光源）的脉冲激光时，如（D）所示精确地控制施加到记录介质的脉冲数，并且将期望形状的记录标记M 被记录在如（E）所示的期望位置。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009187636A

公开(公告)日：2009-08-20

申请号：JP2008028062

申请日：2008-02-07

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HORIGOME TOSHIHIRO

IPC: G11B7/0045 ,  G11B7/005 ,  G11B7/0065 ,  G11B7/125

CPC classification number: G11B20/10037 ,  G11B20/10203 ,  G11B20/10222 ,  G11B20/10481 ,  G11B2007/0013 ,  G11B2220/235 ,  G11B2220/2541

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording device and a recording correction amount calculating method for reducing an error rate of reproduced signals. SOLUTION: A recording mark RM is actually formed in an optical disk 100 and information is recorded. A reproduced signal RF is generated by reproducing information from the optical disk, while a reproduction clock CLr is generated from the reproduced signal RF. A signal level of binarization determination to be set in accordance with variation in the reproduced signals RF is determined as a distribution reference level AD. Recording correction amount for a compensation information signal is calculated so as to adjust a waveform of the reproduced signals so that the reproduced signal RF corresponding to each edge E part crosses the distribution reference level AD around the timing of a trailing edge of the reproduced clock CLr. In information recording, a recording information signal is corrected by recording correction amount and a recording signal is generated, and length of the recording mark M is corrected. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于减少再现信号的错误率的光学信息记录装置和记录校正量计算方法。 解决方案：记录标记RM实际上形成在光盘100中并且记录信息。 通过再现来自光盘的信息产生再现信号RF，而从再现信号RF产生再现时钟CLr。 将根据再现信号RF的变化设定的二值化确定的信号电平确定为分布基准电平AD。 计算补偿信息信号的记录校正量，以便调整再现信号的波形，使得与每个边缘E部分相对应的再现信号RF在再现时钟CLr的后沿的定时附近与分布基准电平AD相交 。 在信息记录中，通过记录校正量来校正记录信息信号，并且产生记录信号，并校正记录标记M的长度。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009151901A

公开(公告)日：2009-07-09

申请号：JP2007331117

申请日：2007-12-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HORIGOME TOSHIHIRO ,  SAITO KIMIHIRO ,  MIYAMOTO HIROTAKA

IPC: G11B7/135 ,  G11B7/0065 ,  G11B7/095

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk drive which can maintain the coherency of blue light beams Lb1, Lb2, and to provide an optical information recording method. SOLUTION: The optical disk drive 20 detects, as the mark change TA, the change amount of the target mark position fluctuating as a tilt develops on the optical disk 100. The optical disk drive 20 further corrects the relation of the light path lengths of the blue light beams Lb1, Lb2 when the first and second objective lenses 35, 74 move corresponding to the mark change amount TA, by adjusting the light path length of at least one of the blue light beams Lb1, Lb2 corresponding to the mark change amount TA, and suppresses the difference of the light path lengths of the blue light beams Lb1, Lb2 down to the coherent length or shorter. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种可以保持蓝色光束Lb1，Lb2的相干性的光盘驱动器，并提供光学信息记录方法。 解决方案：光盘驱动器20检测作为标记变化TA的目标标记位置的变化量随着光盘100上的倾斜而发生变化。光盘驱动器20进一步校正光路的关系 通过调整对应于标记的蓝色光束Lb1，Lb2中的至少一个的光路长度，当第一和第二物镜35,74对应于标记变化量TA移动时的蓝色光束Lb1，Lb2的长度 变化量TA，并且抑制蓝色光束Lb1，Lb2的光路长度的差异降低到相干长度或更短。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009140568A

公开(公告)日：2009-06-25

申请号：JP2007315938

申请日：2007-12-06

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SAITO KIMIHIRO ,  MIYAMOTO HIROTAKA ,  HORIGOME TOSHIHIRO

IPC: G11B7/095 ,  G11B7/135

CPC classification number: G11B7/1353 ,  G11B7/00452 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/0938 ,  G11B2007/0013

Abstract: PROBLEM TO BE SOLVED: To improve position accuracy when a plurality of recording mark layers are laminated in an optical disk. SOLUTION: In an optical pickup device 10, concerning a depth direction and a diameter direction of an optical disk 100 in an optical pickup 17, after distance between a focal point FS3 of a servo light beam LS3 and a focal pint FM of an information light beam LM are previously set appropriately, the servo light beam LS3 converged by an objective lens 18 is adjusted to a reference track TS of a reference mark layer YS. Thereby, the focal point FM of the information light beam LM converged by the objective lens 18 can be adjusted to a target track TT of a target mark layer YT by performing focus control and tracking control of the objective lens 18. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：当在光盘中层叠多个记录标记层时，提高位置精度。 解决方案：在光学拾取装置10中，关于光学拾取器17中的光盘100的深度方向和直径方向，在伺服光束LS3的焦点FS3和焦点品脱FM的距离 预先设定信息光束LM，将由物镜18会聚的伺服光束LS3调整为基准标记层YS的基准轨迹TS。 由此，通过进行物镜18的聚焦控制和跟踪控制，可以将由物镜18收敛的信息光束LM的焦点FM调整为目标标记层YT的目标轨道TT。版权所有： （C）2009，JPO＆INPIT