公开(公告)号：JP2008153302A

公开(公告)日：2008-07-03

申请号：JP2006337416

申请日：2006-12-14

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  IMANISHI SHINGO

IPC: H01L21/268 ,  H01L21/20

Abstract: PROBLEM TO BE SOLVED: To scan and irradiate the upper section of a body to be irradiated with laser beams more uniformly.
SOLUTION: Laser beams output from a beam source section 1 are deflected by a scanning section 3, a feed stage 18 placing the body 10 to be irradiated is moved and the specified region of the body 10 is scanned and irradiated with laser beams. A speed moving at a distance section corresponding to an irradiation effective diameter at the laster beam irradiation place of the body 10 during a scanning period of the scanning section 3 is used as a travel speed in scanning by the feed stage 18 for the body 10.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：更均匀地扫描和照射要用激光束照射的身体的上部。 解决方案：从光源部分1输出的激光束被扫描部分3偏转，放置待照射的主体10的进给台18移动，并且用激光束扫描和照射主体10的指定区域 。 在扫描部分3的扫描周期期间，在与主体10的光束照射位置处的照射有效直径相对应的距离部分处的速度被用作通过用于本体10的馈送台18扫描的行进速度。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008010080A

公开(公告)日：2008-01-17

申请号：JP2006179988

申请日：2006-06-29

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MIKI TAKESHI ,  FUJITA GORO

IPC: G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B7/26

CPC classification number: G11B7/268 ,  G11B7/00736 ,  G11B7/259 ,  Y10T428/21

Abstract: PROBLEM TO BE SOLVED: To raise recording sensitivity, durability, and reproducing property in a ROM type optical disk which performs write once recording by transforming an edge section of a pit in a land/pit array by irradiating it with a recording laser beam. SOLUTION: In the optical disk, a reflection film 4 which comprises an alloy of AlFeX which makes Al as a principal component and containing any one or more sorts of Ti, Cu, Au, Pt and Si as X is deposited on a disk substrate 1 which is formed by continuation of a land 2 and a pit 3, and a protective layer 5 is formed thereon. Write once recording by bit shift is performed by causing transformation of an edge section of the pit by irradiating it with the laser beam. This reflection film is excellent in surface property and durability and recording sensitivity can be raised. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提高ROM型光盘中的记录灵敏度，耐用性和再现性能，其通过用记录激光器照射在岸面/凹坑阵列中的凹坑的边缘部分进行一次写入记录 光束。 解决方案：在光盘中，包含AlFeX合金的反射膜4，其使Al作为主要成分并且含有任何一种或多种Ti，Cu，Au，Pt和Si作为X，沉积在 在其上形成由连续的焊盘2和凹坑3形成的盘基板1和保护层5。 通过通过用激光束照射凹坑的边缘部分进行变换来执行通过位移的记录。 该反射膜的表面性能和耐久性优异，可以提高记录灵敏度。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006244666A

公开(公告)日：2006-09-14

申请号：JP2005062416

申请日：2005-03-07

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO

IPC: G11B7/0045 ,  G11B7/005

Abstract: PROBLEM TO BE SOLVED: To increase a subdata recording density in an optical disk recording medium where main data is recorded by combination of a pit with a land and subata is recorded by a mark formed on a reflection film by irradiating the reflection film with laser by recording power. SOLUTION: A subdata recording operation for recording the subdata by the mark formed on the reflection film by irradiating the reflection film with laser by recording power is carried out separately for a recording operation only for the pit and a recording operation only for the land. Thus, the subdata is recorded for both of pit and land sides, and a subdata recording density is increased more than that when only the pit side or only the land side alone is recorded. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了通过将凹坑与脊和亚的凹坑的组合记录在其中记录主数据的光盘记录介质中的子数据记录密度由形成在反射膜上的标记记录，通过照射反射膜 用激光记录功率。 解决方案：通过记录功率用激光照射反射膜，通过形成在反射膜上的标记来记录子数据的子数据记录操作仅对坑进行记录操作，仅对于记录操作进行记录操作 土地。 因此，对于凹坑和陆地两侧都记录了子数据，并且与只记录凹坑侧或只有土地侧记录时相比，子数据记录密度增加。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005310340A

公开(公告)日：2005-11-04

申请号：JP2004130092

申请日：2004-04-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MIKI TAKESHI ,  FUJITA GORO

IPC: G11B20/10 ,  G11B7/004 ,  G11B7/007 ,  G11B7/26 ,  G11B11/105

Abstract: PROBLEM TO BE SOLVED: To inhibit the operation of a copied magneto-optical recording medium as in the original recording medium even if information is copied to a recording medium, such as the magneto-optical recording medium.
SOLUTION: In the recording medium requiring a reproduction auxiliary region for reproduction of a recorded signal, no reproduction auxiliary regions are formed in association with all sectors in which the signal of an identification signal area is recorded, and a reproduction auxiliary region is formed limitedly in associating with only a partial sector. When an individual identification signal and an information signal are copied and recorded from another recording medium to the recording medium, the individual identification signal reproduced from the recording medium can be made different from the actually recorded individual identification signal, so that the copied and recorded information signal cannot be reproduced.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：即使信息被复制到诸如磁光记录介质的记录介质上，也像原始记录介质那样禁止复制的磁光记录介质的操作。 解决方案：在需要用于再现记录信号的再现辅助区域的记录介质中，与记录识别信号区域的信号的所有扇区相关联地形成再现辅助区域，并且再现辅助区域是 形成有限地仅与部分部门相关联。 当将个别识别信号和信息信号从另一个记录介质复制并记录到记录介质时，可以使从记录介质再现的个体识别信号与实际记录的个体识别信号不同，从而复制和记录的信息 信号无法复制。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004334983A

公开(公告)日：2004-11-25

申请号：JP2003130014

申请日：2003-05-08

Applicant: Sony Corp ,  ソニー株式会社

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

IPC: G11B7/007 ,  G11B7/09 ,  G11B11/105

CPC classification number: G11B11/10595 ,  G11B7/00736 ,  G11B7/094 ,  G11B7/0945 ,  G11B11/10576

Abstract: PROBLEM TO BE SOLVED: To precisely eliminate the tracking offset and improve the recording and reproducing performance when recording and reproducing a magnetooptical recording medium of a magnetic domain wall movement detection type.
SOLUTION: A test for recording and reproducing a recording medium is carried out while giving a prescribed offset to a tracking error signal by adding an direct current component to the tracking error signal or by making an amplification rate asymmetric to a first and second signals for producing a difference prior to the generation of the tracking error signal. Particularly, the recording of a test pattern is carried out in a state in which a certain offset value is set, and the reproduction of the test pattern is carried out in a state in which the offset is still added, and then the quality of the signal is evaluated based on the test pattern thus reproduced. The above operation is repeated two or more times while changing the offset values, and the offset value at which an optimal signal quality is obtained is determined.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：当记录和再现磁畴壁运动检测类型的磁光记录介质时，精确地消除跟踪偏移并提高记录和再现性能。 解决方案：通过向跟踪误差信号添加直流分量或通过使放大率不对称于第一和第二信号来执行用于记录和再现记录介质的测试，同时向跟踪误差信号给出规定的偏移 用于在产生跟踪误差信号之前产生差异的信号。 特别地，在设定了某个偏移值的状态下进行测试图案的记录，并且在仍然添加偏移量的状态下进行测试图案的再现，然后， 基于如此再现的测试图案来评估信号。 在改变偏移值的同时，重复上述操作两次或更多次，并且确定获得最佳信号质量的偏移值。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004259411A

公开(公告)日：2004-09-16

申请号：JP2003051858

申请日：2003-02-27

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  HIDA MINORU

IPC: G11B7/24 ,  G11B7/007 ,  G11B7/095

Abstract: PROBLEM TO BE SOLVED: To apply a WPP (wobbling push pull) system which has resistance to disturbance such as a radial tilt and has high tracking accuracy with one spot by utilizing a wobbling address which has low redundancy and high density efficiency in land groove recording being effective for increasing density. SOLUTION: When it is clear whether the present recording track is a land L or a groove G in tracking polarity, the address of the track can be known from the relation of an odd number and an even number of each wobble address information. For example, when a spot exists at a groove G in tracking polarity and the even number or an odd number of wobble address information B is confirmed, it is understood that the spot exists at a recording track Trk3. Also, when a spot exists at a land L in tracking polarity and the even number of wobble address information C and the odd number of D are confirmed, it is understood that the spot exists at a recording track Trk6. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2004227652A

公开(公告)日：2004-08-12

申请号：JP2003013424

申请日：2003-01-22

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  SAITO KIMIHIRO

IPC: G11B7/24 ,  G11B7/095

Abstract: PROBLEM TO BE SOLVED: To form a tracking error signal even if the track pitch is made smaller than for a cut-off frequency based on the resolution of an optical spot in an optical disk. SOLUTION: In the optical disk 1, information is recorded with pits 2 formed at an annularly formed track. In the optical disk 1, continuous grooves 3 or lands 4 are formed to all the recording tracks. The difference between optical depths of the groove 3 and the land 4 is specified to be nearly λ/8 to the wavelength λ of a laser beam. The interval between grooves 3 (or lands 4) is specified to be twice as wide as a track pitch and pits 2 are formed respectively at the grooves 3 and the lands 4. Tracking error signals reversed every track are formed by detecting returning light of the laser beam with which an information recording surface of the disk is irradiated by using a bisecting photodetector. Tracking can be performed even if the track is disposed with the track pitch having the period smaller than for the optical cut-off frequency. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2003006869A

公开(公告)日：2003-01-10

申请号：JP2001184297

申请日：2001-06-19

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  SAKAMOTO TETSUHIRO

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/125 ,  G11B11/105

CPC classification number: G11B7/126 ,  G11B7/00 ,  G11B7/0045

Abstract: PROBLEM TO BE SOLVED: To prevent crosstalk and cross erasure between the adjacent tracks by reducing influence to an adjacent track in the record part of a long mark.
SOLUTION: A record data converting part 20 processes the data conversion of a data pattern providing a large influence to the adjacent track of an optical disk 1 to then output to an optical pickup when recording the data. Specifically, for data pattern in which a same value continues for a predetermined bit length or more the record data converting part 20 processes data conversion reversing a bit being a part of the data pattern based on a conversion table and then compensates record operation. Or the record data converting part 20 controls the output power and pulse width of laser instead of reversing the bit and thereby compensates the record operation. A data converting part 19 recognizes the data being data converted to be processed when reproducing the data by the record data converting part 20, and decodes to original data to output it.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：通过减少对长标记的记录部分中的相邻轨道的影响来防止相邻轨道之间的串扰和交叉擦除。 解决方案：记录数据转换部分20处理对光盘1的相邻轨道提供较大影响的数据模式的数据转换，然后在记录数据时输出到光学拾取器。 具体地，对于相同值持续预定位长度或更长的数据模式，记录数据转换部分20处理数据转换，以基于转换表反转作为数据模式的一部分的位，然后补偿记录操作。 或者记录数据转换部分20控制激光器的输出功率和脉冲宽度，而不是反转位，从而补偿记录操作。 数据转换部分19识别由记录数据转换部分20再现数据时被转换成要被处理的数据的数据，并解码成原始数据以输出它。

公开(公告)号：JP2002208186A

公开(公告)日：2002-07-26

申请号：JP2001001835

申请日：2001-01-09

Applicant: SONY CORP

Inventor： FUJITA GORO ,  SAKAMOTO TETSUHIRO

IPC: G11B7/24 ,  G11B7/00 ,  G11B7/007 ,  G11B7/26 ,  G11B27/19 ,  G11B27/24

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium which has wobbles disposed desirably from the viewpoint of the manufacturing process when the optical recording medium has wobbles in part of the boundaries between lands and grooves. SOLUTION: In an optical recording medium such as a format, on the surface of the nearly discoid-shaped disk substrate 15, grooves 15a are formed, and projecting parts and recessed parts divided by the grooves 15a for every track region are provided, further, an optical recording layer 16 and a protective film 17 which have a rugged shape copying the grooves 15a are stacked on the substrate 15, and both the projecting parts (lands L) and the recessed parts (grooves G) are utilized as recording regions. Wobbles W which provide clock information or address information are formed on the side wall part which constitutes the inner peripheral side of the disk substrate 15 seen from the recessed part (groove G) and constitutes the outer peripheral side of the disk substrate 15 seen from the projecting part (land L) among a pair of side walls which constitute the grooves 15a and which are facing each other.

公开(公告)号：JP2001256651A

公开(公告)日：2001-09-21

申请号：JP2000071084

申请日：2000-03-09

Applicant: SONY CORP

Inventor： FUJITA GORO

IPC: G11B11/105 ,  G11B7/005 ,  G11B7/125

Abstract: PROBLEM TO BE SOLVED: To provide a reproducing device capable of reducing the temperature rise of an optical disk due to irradiation of laser beams. SOLUTION: The reproducing device 90 is provided with an optical pickup 50, by which the track of the optical disk 81 is irradiated with the converged laser beams from the semiconductor laser, a signal-producing circuit 60 for outputting a signal corresponding to the laser beams reflected from the optical disk 81, a data-detecting circuit 65 for detecting recorded data written into the optical disk 81 based on an output signal MO of the signal producing circuit 60, and a power setting circuit 72 for making the laser output power at reproducing the recorded data to a 2nd level and making the laser output power before reproducing and/or after reproducing the recorded data to a 1st level, which is a positive level lower than the 2nd level. The magneto-optical disk with super-high resolution is e.g. adopted for the optical disk 81.