公开(公告)号：JP2008305452A

公开(公告)日：2008-12-18

申请号：JP2007149157

申请日：2007-06-05

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO

IPC: G11B7/24 ,  G11B7/257 ,  G11B7/26

CPC classification number: G11B7/1275 ,  G11B7/013 ,  G11B7/24038 ,  G11B7/24085 ,  G11B2007/0013

Abstract: PROBLEM TO BE SOLVED: To provide a recording medium which can be manufactured on a massive scale at low costs, to provide an optical disk playback device and to provide a manufacturing method of the recording medium. SOLUTION: The optical disk 1 is provided with a first recording layer 4A having a recording part in which a surface flattened part A1 representing first data and a recessed part A2 representing second data are formed. Thereby, when the optical disk is played back, the refractive index of the part A1 and the refractive index of air in the recessed part A2 are different from each other and reflected light different from each other is generated by the difference between refractive indices, and thus binary data can be distinguished. The recessed part A2 can be easily formed by pressurizing a stamper SA to a resin material 4A' of the first recording layer 4A. Especially when a plurality of the first to fourth recording layers 4A to 4D are layered, task time is reduced and the optical disk 1 in which a large quantity of information is recorded can be manufactured on a massive scale at low costs. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供可以以低成本大规模制造的记录介质，以提供光盘播放装置并提供记录介质的制造方法。 解决方案：光盘1设置有具有记录部分的第一记录层4A，其中形成表示第一数据的表面平坦部分A1和表示第二数据的凹陷部分A2。 因此，当回放光盘时，部分A1的折射率和凹部A2中的空气的折射率彼此不同，并且由折射率之差产生彼此不同的反射光，并且 因此可以区分二进制数据。 凹部A2可以通过将压模SA加压到第一记录层4A的树脂材料4A'而容易地形成。 特别是当多个第一至第四记录层4A至4D分层时，任务时间减少，并且可以以低成本大量地制造其中记录大量信息的光盘1。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006236487A

公开(公告)日：2006-09-07

申请号：JP2005050484

申请日：2005-02-25

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  SHIMOMA TAKASHI ,  TAKAGAWA SHIGEKI

IPC: G11B7/24 ,  G11B7/254 ,  G11B7/257 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To prevent manufacture of a pirated disk formed by physically transferring a rugged shape formed on a substrate of an optical disk recording medium. SOLUTION: In the optical disk recording medium wherein at least a reflection film and a cover layer are layered on a substrate, main data are recorded by combination of pits and lands formed on the substrate and sub data are recorded by marks formed on the reflection film by irradiation with a laser beam by recording power, a protective film is inserted between the substrate and the reflection film. Though there has been a possibility of manufacture of a physical transfer disk to which main data and sub data are copied because the reflection film is deformed by thermal expansion or the like at the part where the marks are formed and the deformation extended to the substrate, the deformation of the reflection film is not extended to the substrate by insertion of the protective film. Thereby, manufacture of the pirated disk by physical transfer is effectively prevented. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题：为了防止通过物理地转移形成在光盘记录介质的基板上的粗糙形状而形成的盗版盘的制造。 解决方案：在其中至少反射膜和覆盖层层叠在基板上的光盘记录介质中，通过在基板上形成的凹坑和平台的组合记录主数据，并且通过在 通过记录功率通过激光束照射反射膜，保护膜插入在基板和反射膜之间。 虽然由于反射膜在形成标记的部分通过热膨胀等而变形并且延伸到基板的变形，因此可以制造主数据和子数据被复制到的物理转印盘， 通过插入保护膜，反射膜的变形不会延伸到基板。 从而有效地防止了通过物理传送制造盗版盘。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006134385A

公开(公告)日：2006-05-25

申请号：JP2004319559

申请日：2004-11-02

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOBAYASHI SEIJI ,  FUJITA GORO

IPC: G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/125 ,  G11B7/24 ,  G11B7/26 ,  G11B20/14 ,  G11B20/18

CPC classification number: G11B20/1426 ,  G11B7/00736 ,  G11B7/268 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/1217 ,  G11B20/1809 ,  G11B2020/1453 ,  G11B2020/1469 ,  G11B2220/2541

Abstract: PROBLEM TO BE SOLVED: To record a unique ID to a read only Blue-Ray Disk in which 17PP modulation is adopted. SOLUTION: A specific physical cluster in which the unique ID is recorded is set in a read only optical disk 1. While all user data recorded in the specific physical cluster is O, a concavo-convex pattern of pit/land is generated to once form a large amount of disks as usual. Afterwards, the unique ID is generated to each disk, and a predetermined position of the land within the specific physical cluster is irradiated with a high power laser in accordance with the bit information to make the land into pits. However, a concavo-convex pattern following a 17PP modulation rule is produced after the land becoming pits. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：将独特的ID记录到采用17PP调制的只读蓝光盘中。

解决方案：将唯一ID记录的特定物理群集设置在只读光盘1中。当记录在特定物理簇中的所有用户数据为O时，都会生成凹坑/平面的凹凸图案 一如往常地形成大量的磁盘。 然后，对每个盘产生唯一的ID，并且根据位信息用大功率激光照射特定物理簇内的焊盘的预定位置，以使焊盘成为凹坑。 然而，在土地成为坑之后，产生遵循17PP调制规则的凹凸图案。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005310339A

公开(公告)日：2005-11-04

申请号：JP2004130091

申请日：2004-04-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MIKI TAKESHI ,  FUJITA GORO

IPC: G11B11/105

Abstract: PROBLEM TO BE SOLVED: To avoid a decrease in the recording/reproducing characteristics of a magneto-optical recording medium by defective sectors due to the occurrence of an anneal error in the manufacture of the magneto-optical recording medium.
SOLUTION: In the manufacture of a land groove recording type magneto-optical recording medium, a boundary wall surface 2d in a land 2b and a groove 2c is annealed, and position information on a boundary wall surface 2d that is mainly irradiated with anneal light L1 and the address of a sector adjacent to the boundary wall surface 2d is acquired. When annealing is not sufficient at one portion of the boundary wall surface 2d, a sector adjacent to the partial boundary wall surface is recorded on the magneto-optical recording medium as a defective sector, and a decrease in the recording/reproducing characteristics of the magneto-optical recording medium by the presence of the defective sector is avoided.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了避免由于磁光记录介质的制造中出现退火误差而导致由缺陷扇区引起的磁光记录介质的记录/再现特性的降低。 解决方案：在陆脊记录型磁光记录介质的制造中，在焊盘2b和槽2c中的边界壁表面2d退火，并且在主要被照射的边界壁表面2d上的位置信息 获得退火光L1和邻近边界壁表面2d的扇区的地址。 当在边界壁表面2d的一部分退火不够时，与局部边界壁表面相邻的扇区作为缺陷扇区被记录在磁光记录介质上，并且磁光记录/再现特性的降低 避免了存在缺陷扇区的光学记录介质。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005259313A

公开(公告)日：2005-09-22

申请号：JP2004073237

申请日：2004-03-15

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  HIDA MINORU

IPC: G11B7/24 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/26 ,  G11B20/10

CPC classification number: G11B7/24082 ,  G11B7/0053

Abstract: PROBLEM TO BE SOLVED: To obtain highly precise address detection against cross talks between adjacent recording tracks on a disk shaped recording medium having address information recorded by wobbling at least on a single side wall of the tracks. SOLUTION: For the FM modulated signals obtained by FM modulating the ADIP data after Bi-phase modulating them for example, one track is completed in a data bit unit, and the sync signals are made not to come close each other in the adjacent tracks. According to this arrangement, the number of waves of the wobble signals become the same between the adjacent tracks, and the phases of the wobble signals can be prevented from becoming opposite between the adjacent tracks. Thus, highly precise address detection can be maintained against cross talks. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了获得高精度的地址检测，以便在具有通过摆动至少在轨道的单个侧壁上记录的地址信息的盘形记录介质上的相邻记录轨道之间进行交叉谈话。 解决方案：对于通过对其调制ADIP数据进行二相调制后得到的FM调制信号，例如，在数据位单元中完成一个磁道，同步信号不会在 相邻轨道。 根据这种布置，摆动信号的波数在相邻轨道之间变得相同，并且可以防止摆动信号的相位在相邻轨道之间变得相反。 因此，可以保持高度精确的地址检测来防止交叉谈话。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005085297A

公开(公告)日：2005-03-31

申请号：JP2003312543

申请日：2003-09-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TANAKA YASUTO ,  MIKI TAKESHI ,  SAKAMOTO TETSUHIRO ,  FUJITA GORO ,  FUJIIE KAZUHIKO

IPC: G11B11/105

CPC classification number: G11B11/10582

Abstract: PROBLEM TO BE SOLVED: To provide a method and device for determining heat treatment, capable of easily determining whether or not the execution of the heat treatment of a magneto-optical information recording medium is carried out properly.
SOLUTION: A laser beam from an LD11 is applied to a magneto-optical disk 33 by predetermined power for heat treatment. After the heat treatment, the laser beam of power smaller than the power during the heat treatment is applied to the heat-treated area. The reflected light of the laser beam of small power is made incident on photodetectors 24 and 26, and the reflected light quantities of P and S waves are detected. A differential detection circuit 27 detects the level of a magneto-optical signal corresponding to the heat-treated area based on the reflected light quantities of the P and S waves. A controller 28 determines whether the level of the magneto-optical signal detected by the differential detection circuit 28 is within a permissible range or not. If it is outside the range, the power of the laser beam for the heat treatment is adjusted, the treatment of the magneto-optical disk is canceled, or the message of that effect is displayed and so on.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于确定热处理的方法和装置，其能够容易地确定是否正确地执行磁光信息记录介质的热处理的执行。 解决方案：来自LD11的激光束通过用于热处理的预定功率施加到磁光盘33。 在热处理之后，将热处理的功率小于激光的激光束施加到热处理区域。 将小功率的激光束的反射光入射到光电检测器24和26上，并检测P和S波的反射光量。 差分检测电路27基于P和S波的反射光量来检测与热处理区域相对应的磁光信号的电平。 控制器28确定由差分检测电路28检测到的磁光信号的电平是否在容许范围内。 如果超出该范围，则调整用于热处理的激光束的功率，消除磁光盘的处理，或者显示该效果的消息等。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005018891A

公开(公告)日：2005-01-20

申请号：JP2003181299

申请日：2003-06-25

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MIKI TAKESHI ,  FUJITA GORO

IPC: G11B11/105 ,  G06F3/00 ,  G06F3/033 ,  G09B21/00 ,  G11B7/007 ,  G11B7/24 ,  G11B11/00

CPC classification number: G11B11/10584 ,  G11B7/24082 ,  G11B11/10515 ,  G11B11/10578 ,  G11B11/10582

Abstract: PROBLEM TO BE SOLVED: To ensure scan position detection of anneal light at a boundary wall surface between a land and a groove with high sensitivity, in a magneto-optical recording medium by a DWDD. SOLUTION: This medium is a magneto-optical recording medium by a DWDD system in which a land 3 and a groove 4 are formed as a signal recording area, when a boundary wall surface 5 between the land 3 and the groove 4 is scan-irradiated with anneal light La and quality of improving magnetic wall movement is changed, for position detection of this anneal light, a wobbling part 7 for detecting scan position deviation of the anneal light being made rugged in the direction of a recording track is provided at a portion extending along the recording track length direction of the boundary wall surface 5. And vibration amplitude of a period corresponding to a period of the wobbling part 7 is caused by scanning this wobbling part 7 by the anneal light, minute variation of a scan position of the anneal light is detected with high sensitivity, and monitoring is performed. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：通过DWDD在磁光记录介质中确保高灵敏度的焊盘和凹槽之间的边界壁表面处的退火光的扫描位置检测。 解决方案：该介质是通过DWDD系统的磁光记录介质，其中，当焊盘3和凹槽4之间的边界壁表面5位于槽脊3和槽4之间时，形成焊盘3和凹槽4作为信号记录区域 用退火光La进行扫描照射，改变磁性壁移动的质量，为了对该退火光进行位置检测，提供了用于检测在记录轨道的方向上使退火光的扫描位置偏差变得坚固的摆动部分7 在沿着边界壁表面5的记录轨道长度方向延伸的部分处。通过用退火光扫描该摆动部分7，产生与摆动部分7的周期相对应的周期的振动振幅，扫描的微小变化 以高灵敏度检测退火光的位置，并进行监视。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004213822A

公开(公告)日：2004-07-29

申请号：JP2003001971

申请日：2003-01-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO

IPC: G11B7/24 ,  G11B7/007 ,  G11B7/09

Abstract: PROBLEM TO BE SOLVED: To detect address information by recording the address information as well as tracking marks in a servo area without lowering redundancy in a circular direction. SOLUTION: A track is formed along a groove, servo information areas are intermittently provided for each segment, and data information areas are formed before and after the servo information areas. A track pitch Tp of a data information area has a period higher than that of an optical cutoff frequency. A tracking mark P1 is formed on extension lines of even tracks, and a tracking mark P2 is formed on extension lines of odd tracks. A segment address shows a position of one round in a rotating direction and has a constant value in a radial direction. The position of an edge of a groove in a data information area after the tracking mark P2 represents the position information of the segment in a rotating direction, that is, one bit of segment address information. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2002222536A

公开(公告)日：2002-08-09

申请号：JP2001017495

申请日：2001-01-25

Applicant: SONY CORP

Inventor： TERAOKA YOSHIYUKI ,  ISHII TAMOTSU ,  FUJITA GORO

IPC: G02F1/13 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135 ,  G11B7/1369 ,  G11B7/1398 ,  G11B11/105

Abstract: PROBLEM TO BE SOLVED: To shape an optical spot optimally for a plurality of mutually different mediums. SOLUTION: In an optical pickup device 4, a reproducing laser beam emitted from an LD 41 at the time of reproduction passes through an As corrector plate 42 and a grating 43, entering in a beam splitter 44. The beam splitter 44 transmits the laser beam and makes it incident on a liquid crystal part 45. Then, the optical spot shaping device, at the time of reproduction, imparts aberration to the laser beam passing the liquid crystal part 45 in accordance with the type of magneto-optical disk, shaping the optical spot on the magneto- optical disk.

公开(公告)号：JP2002184011A

公开(公告)日：2002-06-28

申请号：JP2000375036

申请日：2000-12-08

Applicant: SONY CORP

Inventor： FUJITA GORO ,  SUZUKI YUICHI

IPC: G11B11/105 ,  G11B7/0045 ,  G11B7/125 ,  H01S5/068

Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling laser power which controls the laser power, even if the laser power changes due to the changes in utilization environments, proper influence of drive or disk and so on, and can keep optimum laser power. SOLUTION: This magneto-optical disk recording and reproducing device 10 records data sectors for respective recording of data sector parts 41 for recording with the optimum laser power Px, and thereafter, so as to add the same, writes a reference sector of a reference sector part 42 for controlling recording power with a laser power PL-d, which is smaller than the lower limit value PL of laser power. After completing recording, the magneto-optical disk recording and reproducing device 10 reproduces the reference sector of the reference sector part 42 for controlling recording power by using a recording and reproducing part. In addition, the magneto-optical disk recording and reproducing device 10 determines whether the optimum laser power Px has deviated, on the basis of the result whether the regeneration error rate lies within the error tolerance limit.