公开(公告)号：US07274644B2

公开(公告)日：2007-09-25

申请号：US10525766

申请日：2003-08-27

申请人： Kunihiko Horikawa ,  Akira Shirota ,  Masahiro Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

发明人： Kunihiko Horikawa ,  Akira Shirota ,  Masahiro Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

IPC分类号： G11B20/10

CPC分类号： G11B7/1263 ,  G11B7/00456 ,  G11B7/0062 ,  G11B7/0956

摘要： When a bias power level of a recording pulse waveform is varied entirely or partially, a shape of the recording pulse wave form is varied according to the variation. For example, when the bias power level is increased, a width or an edge position of a top pulse or a multi-pulse of the recording pulse waveform is varied correspondingly. Thereby, a total heat quantity of a recording laser light is not increased, and a preferable recording characteristic is maintained.

摘要翻译： 当记录脉冲波形的偏置功率电平完全或部分地变化时，记录脉冲波形的形状根据变化而变化。 例如，当偏置功率电平增加时，记录脉冲波形的顶部脉冲或多脉冲的宽度或边缘位置相应地变化。 因此，记录激光的总热量不增加，并且保持优选的记录特性。

公开(公告)号：US20070086292A1

公开(公告)日：2007-04-19

申请号：US11395174

申请日：2006-04-03

申请人： Eiji Muramatsu ,  Shoji Taniguchi ,  Kunihiko Horikawa ,  Masahiro Kato ,  Toshio Suzuki ,  Kazuo Kuroda

发明人： Eiji Muramatsu ,  Shoji Taniguchi ,  Kunihiko Horikawa ,  Masahiro Kato ,  Toshio Suzuki ,  Kazuo Kuroda

IPC分类号： G11B7/12

CPC分类号： G11B7/1267 ,  G11B7/0045 ,  G11B7/00736 ,  G11B7/24038 ,  G11B2007/0013 ,  Y10T428/21

摘要： A disc-shaped information recording medium includes a first recording layer (L0 layer) having (I) a first trial write area (101P-1) for trial write of first trial write information for calibration of the laser beam along the first track path (TP1) from the inner circumference toward the outer circumference and (II) a first recording area for recording the first recording information along a first track path (TP1), in this order from the inner circumference side. Furthermore, the disc-shaped information recording medium includes a second recording layer (L1 layer) having (I) a second trial write area (101P-2) for trial write of second trial write information for calibration of the laser beam along the second track path (TP2) from the outer circumference toward the inner circumference and (II) a second recording area for recording the second recording information along a second track path (TP2), in this order from the inner circumference side.

摘要翻译： 盘形信息记录介质包括第一记录层（L 0层），其具有（I）用于试写第一试写入信息的第一试写区（101-1），用于沿着第一轨道校准激光束 路径（TP1）从内圆周到外圆周的距离，以及（II）第一记录区域，用于沿着第一轨迹路径（TP 1）记录第一记录信息。 此外，盘状信息记录介质包括第二记录层（L1层），其具有（I）第二试写区域（101P-2），用于试写第二试写入信息，用于沿着 从第二轨道路径（TP2）到外周的第二轨道路径（TP2），以及（II）从第二轨迹路径（TP2）沿着第二轨道路径TP2顺序记录第二记录区域的第二记录区域。

公开(公告)号：US20060098547A1

公开(公告)日：2006-05-11

申请号：US10517525

申请日：2003-04-02

申请人： Kunihiko Horikawa ,  Shoji Taniguchi ,  Eiji Muramatsu ,  Akira Shirota

发明人： Kunihiko Horikawa ,  Shoji Taniguchi ,  Eiji Muramatsu ,  Akira Shirota

IPC分类号： G11B5/09

CPC分类号： G11B7/00456 ,  G11B7/0062

摘要： Based on a recording signal, a recording pulse signal, which includes a top pulse located at a front end portion and having a first magnitude, a last pulse located at a back end portion and having the first magnitude, and an intermediate bias portion located between the top pulse and the last pulse and having a second magnitude, is generated. Based on the recording pulse signal, a light source is controlled, and a laser pulse is irradiated on a recording medium. Recording marks corresponding to the recording signal are formed on the recording medium. In generating the recording pulse signal, when the recording medium is rotationally driven, a position of the top pulse is shifted ahead of a position of the top pulse when the recording medium is rotationally driven at the first rotation speed, when the recording medium is rotationally driven at the second control speed.

摘要翻译： 基于记录信号，记录脉冲信号，其包括位于前端部并具有第一量值的顶部脉冲，位于后端部分并具有第一幅度的最后脉冲和位于第一幅度之间的中间偏置部分 产生顶脉冲和最后脉冲并具有第二幅度。 基于记录脉冲信号，控制光源，并将激光脉冲照射在记录介质上。 在记录介质上形成与记录信号对应的记录标记。 在产生记录脉冲信号时，当记录介质被旋转驱动时，当记录介质被旋转地旋转驱动记录介质时，顶部脉冲的位置在顶部脉冲的位置之前移动 以第二控制速度驱动。

公开(公告)号：US06599607B1

公开(公告)日：2003-07-29

申请号：US09544551

申请日：2000-04-06

申请人： Toshihiko Takishita ,  Masahiro Kato ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Shoji Taniguchi ,  Atsushi Yamaguchi

发明人： Toshihiko Takishita ,  Masahiro Kato ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Shoji Taniguchi ,  Atsushi Yamaguchi

IPC分类号： B32B302

CPC分类号： G11B7/00745 ,  Y10T428/21

摘要： An optical recording medium is designed to generate a read signal free from waveform distortion during reproduction of information. The optical recording medium is formed with information tracks on which data pits carrying information data is to be formed, and prepit tracks previously formed with a plurality of prepits. Each of the information tracks and each of the prepit tracks are positioned adjacent to each other, and each of the prepits is formed to be spaced apart from adjacent information tracks in at least its bottom part.

摘要翻译： 光记录介质被设计成在再现信息期间产生没有波形失真的读信号。 光记录介质形成有要在其上形成承载信息数据的数据坑的信息轨迹，并且预先形成有多个预凹坑的预制轨迹。 每个信息轨道和每个预凹坑轨道彼此相邻定位，并且每个预凹坑形成为至少在其底部部分与相邻信息轨迹间隔开。

公开(公告)号：US5949751A

公开(公告)日：1999-09-07

申请号：US706265

申请日：1996-09-04

申请人： Kunihiko Horikawa ,  Eiji Muramatsu

发明人： Kunihiko Horikawa ,  Eiji Muramatsu

IPC分类号： G11B7/005 ,  G11B7/24

CPC分类号： G11B7/005 ,  G11B7/24

摘要： The optical recording medium includes a first layer which is in a state that includes different phases having different optical constants and in which information has been recorded. The second layer is capable of changing states, which states include different phases and different optical constants. There is also provided a method of reproducing information recorded on an optical recording medium which includes a first layer having different phases and different optical constants and a second layer capable of changing states, which states include different phases and different optical constants. The method employs irradiating the second layer with a laser beam, and reproducing information recorded on the first layer from an area corresponding to an area of the second layer where the optical constants change due to laser irradiation.

摘要翻译： 光记录介质包括第一层，该第一层处于包括具有不同光学常数的不同相位并且已经记录信息的状态。 第二层能够改变状态，其状态包括不同的相位和不同的光学常数。 还提供了一种再现记录在光学记录介质上的信息的方法，该方法包括具有不同相位和不同光学常数的第一层，以及能够改变状态的第二层，该状态包括不同的相位和不同的光学常数。 该方法使用激光束照射第二层，并且从与激光照射引起的光学常数变化的第二层的区域对应的区域再现记录在第一层上的信息。

公开(公告)号：US20100135140A1

公开(公告)日：2010-06-03

申请号：US12593355

申请日：2008-03-13

申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miuro ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kizutoshi

发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miuro ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kizutoshi

IPC分类号： G11B20/18 ,  G11B7/135

CPC分类号： G11B7/0908 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1387 ,  G11B2007/13727

摘要： An information recording/reproducing device diffracts laser light into main- and sub-beams, irradiates evanescent light in relation to the main beam by an evanescent light generating element to a track where a recording pit provided on a recording surface of a recording medium is formed and evanescent light in relation to the sub-beam to be separated to a track where no recording pit provided on the recording surface of the recording medium is formed. A moving element moves the evanescent light generating element to change a gap with the recording surface. Return light in relation to the sub- and main-beam are received by sub- and main-light receiving elements, respectively. A control element controls the moving element so as to make the gap become a predetermined target value in accordance with a gap error signal containing a signal indicative of an amount of the return light in relation to the received sub-beam.

摘要翻译： 信息记录/再现装置将激光衍射成主光束和次光束，通过ev逝光产生元件将相对于主光束的ev逝光照射到形成记录介质的记录表面上的记录凹坑的轨道 以及相对于要分离到不形成记录介质的记录表面上的记录凹坑的轨道的相对于子光束的渐逝光。 移动元件移动消逝光产生元件以改变与记录表面的间隙。 相对于副主梁和主梁的返回光分别由副光接收元件和主光接收元件接收。 控制元件控制移动元件，以便根据含有指示与所接收的子光束相关的返回光量的信号的间隙误差信号使间隙变成预定目标值。

公开(公告)号：US07636282B2

公开(公告)日：2009-12-22

申请号：US10573762

申请日：2004-09-29

申请人： Eiji Muramatsu ,  Shoji Taniguchi ,  Kunihiko Horikawa ,  Masahiro Kato ,  Toshio Suzuki ,  Kazuo Kuroda

发明人： Eiji Muramatsu ,  Shoji Taniguchi ,  Kunihiko Horikawa ,  Masahiro Kato ,  Toshio Suzuki ,  Kazuo Kuroda

IPC分类号： G11B15/52

CPC分类号： G11B7/0062 ,  G11B7/00736 ,  G11B2007/0013

摘要： An information recording apparatus for recording information onto an information recording medium having a plurality of recording layers, by irradiating the information recording medium with laser light for recording, the information recording apparatus including: a setting device for setting a preferable irradiation condition of the laser light which is preferable to one recording layer in which the information is scheduled to be recorded, out of the plurality of recording layers, for each recording state of another recording layer out of the plurality of recording layers; and an irradiating device for irradiating the one recording layer with the laser light in the set preferable irradiation condition.

摘要翻译： 一种信息记录装置，用于通过用记录用激光照射信息记录介质，将信息记录在具有多个记录层的信息记录介质上，该信息记录装置包括：设置装置，用于设置激光的优选照射条件 对于多个记录层中的另一记录层的每个记录状态，多个记录层中的信息被调度记录的一个记录层优选; 以及在设定的优选照射条件下用激光照射一个记录层的照射装置。

公开(公告)号：US07603027B2

公开(公告)日：2009-10-13

申请号：US10574354

申请日：2004-09-28

申请人： Masahiro Kato ,  Shoji Taniguchi ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Toshio Suzuki ,  Kazuo Kuroda

发明人： Masahiro Kato ,  Shoji Taniguchi ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Toshio Suzuki ,  Kazuo Kuroda

IPC分类号： H04N5/00

CPC分类号： G11B7/1267

摘要： An information recording apparatus (1) is provided with: a recording device (310) for recording record information onto an information recording medium by irradiating the information recording medium (100) with laser light with a recording power according to a set value; a calculating device (340) for preparing correlation information which represents a correlation between the set value and reproduction quality, and for obtaining a reference set value which gives target reproduction quality as being desired reproduction quality, by reproducing test-record information recorded with changing the set value on the recording device; a measuring device (330) for measuring the reproduction quality, by reproducing the record information recorded by using the reference set value on the recording device; and an adjusting device (400) for obtaining adjustment amount of the reference set value on the basis of the correlation information if the reproduction quality measured by the measuring device is different from the target reproduction quality, and for adjusting the reference set value such that a set value which is adjusted based on the adjustment amount is to be a new reference set value.

摘要翻译： 一种信息记录装置（1）具有：记录装置，用于通过用记录功率根据设定值照射信息记录介质（100）来将记录信息记录在信息记录介质上; 计算装置（340），用于准备表示设定值和再现质量之间的相关性的相关信息，并且通过再现通过改变所述再现质量而记录的测试记录信息，获得给出目标再现质量作为期望再现质量的参考设定值 在录音设备上设置值; 用于通过在记录装置上再现通过使用参考设定值记录的记录信息来测量再现质量的测量装置; 以及调整装置（400），用于如果由测量装置测量的再现质量与目标再现质量不同，则基于相关信息获得参考设定值的调整量，并且用于调整参考设定值，使得 基于调整量调整的设定值为新的基准设定值。

公开(公告)号：US20080267035A1

公开(公告)日：2008-10-30

申请号：US10594534

申请日：2005-03-29

申请人： Kazuo Kuroda ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Atsushi Yamaguchi ,  Masahiro Kato ,  Toshio Suzuki

发明人： Kazuo Kuroda ,  Eiji Muramatsu ,  Kunihiko Horikawa ,  Atsushi Yamaguchi ,  Masahiro Kato ,  Toshio Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B20/1217 ,  G11B7/0037 ,  G11B7/00736 ,  G11B2007/0013 ,  G11B2020/1267 ,  G11B2220/237 ,  G11B2220/2537

摘要： An information recording medium (100) is provided with: a first recording layer (L0) in which record information is recorded toward one direction directed from an inner circumferential side to an outer circumferential side, or directed from the outer circumferential side to the inner circumferential side, by irradiating laser light (LB) thereon; and a second recording layer (L1) in which the record information is recorded toward another direction which is different from the one direction, by irradiating the laser light thereon, directions of recording the record information being equal, in a particular recording area for focus-in of the laser light in said first recording layer and in at least one recording area of said second recording layer corresponding to the particular recording area.

摘要翻译： 信息记录介质（100）具有：第一记录层（L 0），其中记录信息从从内周侧朝向外周侧的一个方向记录，或从外周侧向内记录 周边，通过在其上照射激光（LB）; 以及第二记录层（L 1），其中通过在特定的记录区域中照射记录信息的方向相等的方式，将记录信息沿与该一个方向不同的另一方向记录 - 在所述第一记录层中的激光中和在与所述特定记录区对应的所述第二记录层的至少一个记录区中。

公开(公告)号：US20080074972A1

公开(公告)日：2008-03-27

申请号：US11662093

申请日：2005-09-07

申请人： Kunihiko Horikawa ,  Kazuo Kuroda ,  Shoji Taniguchi ,  Masahiro Kato ,  Eiji Muramatsu

发明人： Kunihiko Horikawa ,  Kazuo Kuroda ,  Shoji Taniguchi ,  Masahiro Kato ,  Eiji Muramatsu

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B7/24038

摘要： An information recording medium, provided with: a first recording layer (L0 layer) to record therein record information by irradiating laser light (LB); and a second recording layer (L1 layer) to record therein the record information by irradiating the laser light through the first recording layer, the second recording layer having a first calibration area (113) which is to record therein pattern information for obtaining an optimum power of the laser light and which corresponds to a recording area (104) of the first recording layer in which the record information is unrecorded, a head portion of the first calibration area being disposed at a position where it is displaced by a predetermined distance toward a direction of recording the pattern information, on the basis of a head portion of the recording area of the first recording layer in which the record information is unrecorded.

摘要翻译： 一种信息记录介质，具有：通过照射激光（LB）在其中记录记录信息的第一记录层（L0层）; 以及第二记录层（L1层），通过照射激光通过第一记录层来记录记录信息，第二记录层具有第一校准区域（113），其中记录有用于获得最佳功率的图案信息 并且其对应于记录信息未被记录的第一记录层的记录区域（104），第一校准区域的头部被布置在向其移动预定距离的位置处 根据记录信息未记录的第一记录层的记录区域的头部，记录图案信息的方向。