公开(公告)号：US20120134247A1

公开(公告)日：2012-05-31

申请号：US13286243

申请日：2011-11-01

申请人： Atsushi Kikugawa ,  Tatsuro Ide

发明人： Atsushi Kikugawa ,  Tatsuro Ide

IPC分类号： G11B21/10 ,  G11B27/36 ,  G11B7/1374

CPC分类号： G11B7/0901 ,  G11B7/24044 ,  G11B7/2405

摘要： An optical disc device and information recording/reading method for an optical disc in which a recording layer is formed through volume recording by aligning recording tracks, which hold information, in a homogenous recording region that does not internally have a layer defining a recording position. The information recording method includes a step in which a first recording layer forming a complex recording layer is formed by forming a recording track while recording information by focusing a main beam at a predetermined depth position in the recording region, and a step in which a second recording layer forming the complex recording layer is formed by forming a recording track while recording information by focusing the main beam at a depth position that is separated from the first recording layer in a depth direction by a depth offset greater than ⅙ of a wavelength of the main beam.

摘要翻译： 一种用于光盘的光盘装置和信息记录/读取方法，其中通过将记录信道对准的记录轨道通过体积记录形成在不内部具有限定记录位置的层的均匀记录区域中的记录层。 信息记录方法包括以下步骤：其中通过在记录区域中的预定深度位置处聚焦主光束来记录信息来形成记录轨道，形成复合记录层的第一记录层，并且其中第二记录层 形成复合记录层的记录层通过在记录信息的同时通过将主光束在深度方向上与第一记录层分离的深度位置聚焦在深度方向上的深度偏移大于 主梁。

公开(公告)号：US08184514B2

公开(公告)日：2012-05-22

申请号：US12612029

申请日：2009-11-04

申请人： Toshiki Ishii ,  Kenichi Shimada

发明人： Toshiki Ishii ,  Kenichi Shimada

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G11B7/0065

摘要： A signal quality evaluating method necessary for a signal quality evaluation index and a margin design is provided for an apparatus utilizing hologram recording techniques. An evaluation index is used being obtained by dividing root sum square of standard deviations of luminance value distribution of on- and off-pixels obtained from reproduced signals, by a difference between average values.

摘要翻译： 对于使用全息图记录技术的装置，提供信号质量评价指标和边缘设计所需的信号质量评估方法。 通过将由再现信号获得的开启和关闭像素的亮度值分布的标准偏差的总和平均除以平均值之间的差来获得评估指标。

公开(公告)号：US08174940B2

公开(公告)日：2012-05-08

申请号：US12768783

申请日：2010-04-28

申请人： Takahiro Matsuda

发明人： Takahiro Matsuda

IPC分类号： G11B7/00

CPC分类号： G11B7/13927 ,  G11B7/08505 ,  G11B7/0945 ,  G11B2007/0013

摘要： An optical disc apparatus, for executing recording or reproducing onto/from a multilayered optical disc having “N” pieces of recording layers (N≧3, “N” is an integer), from a first layer to a Nth layer, including a light emitting portion configured to emit a laser beam, a light receiving portion, a correcting portion configured to correct a tilt of the optical disc or an aberration of the laser beam, an adjusting portion, a detecting portion, and a selecting portion configured to select “A” pieces of recording layers (A

摘要翻译： 一种光盘装置，用于从具有“N”个记录层（N≥3，“N”是整数）的多层光盘执行记录或再现，从第一层到第N层，包括光 被配置为发射激光束的发光部分，光接收部分，校正部分，被配置为校正光盘的倾斜或激光束的像差;调节部分，检测部分和选择部分，被配置为选择“ 取决于光盘的层结构，记录层（A

公开(公告)号：US08154973B2

公开(公告)日：2012-04-10

申请号：US13210429

申请日：2011-08-16

申请人： Hiroyuki Minemura ,  Soichiro Eto ,  Takahiro Kurokawa ,  Shuichi Kusaba

发明人： Hiroyuki Minemura ,  Soichiro Eto ,  Takahiro Kurokawa ,  Shuichi Kusaba

IPC分类号： G11B5/09

CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10296 ,  G11B20/1816 ,  G11B20/182 ,  G11B2220/2541 ,  H03M13/39 ,  H03M13/6343

摘要： A highly efficient and reliable reproduced signal evaluation method and an optical disc drive using that method in which assuming that the number of 2T's appearing successively in a predetermined evaluation bitstream is i, the evaluation bitstream is divided into a main bitstream (5+2i) long and sub bitstreams at the ends of the main bitstream. The check process to determine whether a predetermined evaluation bitstream is included in the binarized bitstreams is replaced with a main bitstream agreement check. This can prevent an increase in the circuit size. At the same time, by separately summing up for each main bitstream the calculated results of Euclidean distance between the reproduced signal and the target signal corresponding to the evaluation bitstream, the size of an evaluation summing circuit can be reduced.

摘要翻译： 使用该方法的高效可靠的再现信号评估方法和光盘驱动器，其中假定在预定评估比特流中连续出现的2T的数量为i，则将评估比特流分成主比特流（5 + 2i）长 以及在主比特流的末端的子比特流。 用于确定在二进制化比特流中是否包括预定评估比特流的检查处理被主比特列协议检查替换。 这可以防止电路尺寸的增加。 同时，通过对每个主比特流单独地求和再现信号与对应于评估比特流的目标信号之间的欧氏距离的计算结果，可以减小评估求和电路的大小。

公开(公告)号：US08139454B2

公开(公告)日：2012-03-20

申请号：US12815062

申请日：2010-06-14

申请人： Kenji Akahoshi

发明人： Kenji Akahoshi

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0006

摘要： A Spare Area kept unused on a disk is available for use other than spare processing, or Defect Management process, and compatibility of the disk is at least secured between different recording apparatuses. This is implemented by recording a SWP_PAC cluster defined as a new item and by recording address information of used addresses in a PAC or TDDS area.

摘要翻译： 磁盘上未使用的备用区域可用于备用处理或缺陷管理进程之外，并且磁盘的兼容性至少在不同的记录设备之间保护。 这是通过记录定义为新项目的SWP_PAC群集并通过在PAC或TDDS区域中记录所使用地址的地址信息来实现的。

公开(公告)号：US08130610B2

公开(公告)日：2012-03-06

申请号：US12717981

申请日：2010-03-05

申请人： Takahiro Kurokawa

发明人： Takahiro Kurokawa

IPC分类号： G11B20/10

CPC分类号： G11B7/0062 ,  G11B7/00456

摘要： To compensate for edge shifts varying largely in accordance with preceding mark lengths. Provided are a method and a recorder in which a duration of a cooling pulse in each recording pulse string to form a mark having a length of nT is determined on the basis of an edge shift amount of a front edge of a mark whose preceding mark has a length of nT, where n is an integer and T is a channel bit length.

摘要翻译： 以补偿根据先前标记长度变化很大的边缘位移。 提供了一种方法和记录器，其中基于前面标记具有的标记的前边缘的边缘移位量来确定每个记录脉冲串中形成长度为nT的标记的冷却脉冲的持续时间 nT的长度，其中n是整数，T是信道位长度。

公开(公告)号：US08111354B2

公开(公告)日：2012-02-07

申请号：US12684875

申请日：2010-01-08

申请人： Satoshi Ouchi ,  Koichi Sakita ,  Hajime Inoue ,  Seiji Murata

发明人： Satoshi Ouchi ,  Koichi Sakita ,  Hajime Inoue ,  Seiji Murata

IPC分类号： G02F1/1333

CPC分类号： G02B6/0038 ,  G02B6/0051 ,  G02B6/0061 ,  G02B6/008 ,  G02F2001/133601

摘要： A backlight unit having a LED light source includes a light guide plate partitioned in areas each having a tapered shape formed of a thick portion and a thin portion. The light guide plate is formed such that a thick portion and a thin portion are repeated at certain intervals, and the repeated thick portions and the repeated thin portions gradually decrease in thickness. The LED light source is attached to a lateral side of each thick portion. Grooves are formed in the light irradiation direction of the LED light source and in a direction perpendicularly intersecting the light irradiation direction. Each of the grooves is formed in an concave shape (V-shape or trapezoid-shape). There is a relation 0.2/30

摘要翻译： 具有LED光源的背光单元包括在由厚壁部和薄壁部形成为锥形的区域分割的导光板。 导光板形成为以一定间隔重复厚壁部分和薄部分，并且重复的厚部分和重复的薄部分的厚度逐渐减小。 LED光源连接到每个厚部分的侧面。 在LED光源的光照射方向和与光照射方向垂直的方向上形成槽。 每个槽形成为凹形（V形或梯形）。 有0.2 / 30 <= W / D <0.1的关系，其中D表示导光板和光扩散板之间的距离，W表示每个槽的宽度。 倾斜角度和角度; 相对于每个凹槽的中心在9和15度之间。 因此，具有LED光源的背光单元可以利用提供理想的正面亮度分布的区域划分的导光板。

公开(公告)号：US08098013B2

公开(公告)日：2012-01-17

申请号：US12502552

申请日：2009-07-14

申请人： Norihiro Uemura ,  Shunichiro Nobuki ,  Naoya Tokoo ,  Masakazu Sagawa

发明人： Norihiro Uemura ,  Shunichiro Nobuki ,  Naoya Tokoo ,  Masakazu Sagawa

IPC分类号： H01J17/49

CPC分类号： H01J11/12 ,  G09G3/2927 ,  G09G2320/0238 ,  G09G2320/0242 ,  H01J11/42

摘要： A plasma display device includes: a front substrate and a back substrate facing each other and interposing a discharge gap; and a plurality of discharge cells formed by the front substrate and the back substrate, wherein a mixture gas containing Xe is filled in the discharge gap, and a red, green, or blue phosphor materials is arranged in each of the discharge cells. The plasma display device performs a reset operation by, at least, a weak discharge. A crystal material is arranged in the red, green, and blue phosphor materials so as to make weak discharge firing voltages for reset discharges in respective discharge cells uniform.

摘要翻译： 等离子体显示装置包括：前基板和背面基板，彼此面对并插入放电间隙; 以及由前面基板和背面基板形成的多个放电单元，其中在放电间隙中填充含有Xe的混合气体，并且在每个放电单元中布置红色，绿色或蓝色荧光体材料。 等离子体显示装置至少进行弱放电进行复位动作。 在红色，绿色和蓝色荧光体材料中布置晶体材料，以使各放电单元中的复位放电的放电点火电压弱。

公开(公告)号：US20120002516A1

公开(公告)日：2012-01-05

申请号：US13038692

申请日：2011-03-02

申请人： Tatsuro IDE

发明人： Tatsuro IDE

IPC分类号： G11B7/00

CPC分类号： G11B7/1356 ,  G11B7/0908 ,  G11B7/131 ,  G11B2007/0013

摘要： A light beam emitted from a laser source is divided into a first light beam and a second light beam. An optical divider is further provided to separate a combined light beam of the first and second light beams into a first light bundle near the optical axis and a second light bundle in the edge portion and to diverge the first and second light bundles so that the first and second light bundles are individually detected by plural detectors. The first light beam is signal light focused on an optical information recording medium by an objective lens and reflected off the medium, and the second light beam is reference light not focused on the optical information recording medium. A focus error signal is then detected for the first light bundle for compensating focus error.

摘要翻译： 从激光源发射的光束被分成第一光束和第二光束。 进一步提供一种分光器，用于将第一和第二光束的组合光束分离成光轴附近的第一光束和边缘部分中的第二光束，并使第一和第二光束发散，使得第一光束 并且由多个检测器单独检测第二光束。 第一光束是通过物镜聚焦在光学信息记录介质上并从介质反射的信号光，第二光束是不聚焦在光学信息记录介质上的参考光。 然后针对第一光束检测聚焦误差信号以补偿聚焦误差。

公开(公告)号：US08085640B2

公开(公告)日：2011-12-27

申请号：US12569021

申请日：2009-09-29

申请人： Hiroyuki Minemura ,  Takahiro Kurokawa

发明人： Hiroyuki Minemura ,  Takahiro Kurokawa

IPC分类号： G11B5/09

CPC分类号： G11B20/10009 ,  G11B7/0045 ,  G11B7/005 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10296 ,  G11B20/10481 ,  G11B20/1816 ,  G11B20/182 ,  G11B20/22 ,  G11B20/225 ,  G11B2220/2541

摘要： A method for evaluating reproduced signal wherein when Euclidean distance is calculated by judging the coincidence between a binary bit array and a predetermined evaluation bit array in the evaluation of the quality of reproduced signal, the assumption is made that a continuous 2T count included in a predetermined evaluation bit array is denoted by i and that each evaluation bit array is composed of a main bit array having a bit length of (5+2i); and judgment on whether binary bit arrays include the predetermined evaluation bit array, is concentrated on the coincidence judgment of the main bit arrays.

摘要翻译： 一种用于评估再现信号的方法，其中通过在评估再现信号的质量中判断二进制位阵列和预定评估位阵列之间的一致性来计算欧几里得距离时，假设包括在预定的 评估位阵列由i表示，并且每个评估位阵列由具有位长度（5 + 2i）的主位阵列组成; 并且关于二进制位阵列是否包括预定的评估位阵列的判断集中在主位阵列的重合判断上。