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：US07586823B2

公开(公告)日：2009-09-08

申请号：US10546719

申请日：2004-02-25

申请人： Atsushi Yamaguchi ,  Masahiro Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

发明人： Atsushi Yamaguchi ,  Masahiro Kato ,  Eiji Muramatsu ,  Shoji Taniguchi

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/00456

摘要： In a recording strategy suitable for high-speed recording, a laser driving signal includes a top pulse having a pulse width corresponding to a recording mark length and multi-pulses having a period 3-times larger than a base clock period of a recording mark. The top pulse is has the first identical-shape top pulses when the recording mark length is 3nT (“n” is a natural number), the second identical-shape top pulses when the recording mark length is (3n+1)T, and the third identical-shape top pulses when the recording mark length is (3n+2)T.

摘要翻译： 在适于高速记录的记录策略中，激光驱动信号包括具有对应于记录标记长度的脉冲宽度的顶部脉冲和具有比记录标记的基本时钟周期大3倍的周期的多脉冲。 当记录标记长度为3nT（“n”为自然数）时，顶部脉冲具有第一相同形状的顶部脉冲，当记录标记长度为（3n + 1）T时，第二相同形状的顶部脉冲，以及 当记录标记长度为（3n + 2）T时，第三个相同形状的顶部脉冲。

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。

公开(公告)号：US07231731B2

公开(公告)日：2007-06-19

申请号：US10315932

申请日：2002-12-11

申请人： Eiji Muramatsu ,  Shoji Taniguchi ,  Masahiro Kato

发明人： Eiji Muramatsu ,  Shoji Taniguchi ,  Masahiro Kato

IPC分类号： G11B7/24

CPC分类号： G11B7/00736 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/0901 ,  G11B7/24085 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2562

摘要： On an information record medium (1), information is optically recorded and reproduced while a servo control is performed with respect to the information record medium by a push-pull method. The information record medium is provided with: a record/reproduction area (DA) having a groove track (2), which is wobbled and continuously formed and on which the information is recorded and reproduced by a phase changing method by use of a light beam (B) having a wavelength of not less than 630 nm (nanometer) and not more than 680 nm; and a reproduction-dedicated area (RA) where a plurality of phase pits (PI) are wobbled and formed in advance, each having a depth of not less than 60 nm and not more than 90 nm and where only an information reproduction is possible by the light beam.

摘要翻译： 在信息记录介质（1）上，通过推挽方法相对于信息记录介质执行伺服控制，光信息被记录和再现。 信息记录介质具有：具有凹槽轨道（2）的记录/再现区域（DA），其被摆动并连续地形成，并且通过使用光束的相位改变方法在其上记录和再现信息 （B）具有不小于630nm（纳米）且不大于680nm的波长; 以及其中多个相位凹坑（PI）预先摆动并形成的再现专用区域（RA），每个具有不小于60nm且不大于90nm的深度，并且其中只有信息再现可以通过 光束。

公开(公告)号：US20070041308A1

公开(公告)日：2007-02-22

申请号：US10574351

申请日：2004-10-01

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： G11B7/24

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（L0层），该第一记录层（I0）具有用于试写第一试写入信息的第一试写区（101-1），用于沿着第一轨迹路径校准激光束 （TP1）从内圆周到外圆周的距离，以及（II）从第一记录区域沿着第一轨道（TP 1）记录第一记录信息的顺序。 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，用于沿着第二处校准激光束 轨道路径（TP2）从外圆周到内圆周的距离，以及（II）第二记录区域，用于沿第二轨迹路径（TP2）记录第二记录信息。

公开(公告)号：US20060007832A1

公开(公告)日：2006-01-12

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：US20050276212A1

公开(公告)日：2005-12-15

申请号：US11148433

申请日：2005-06-09

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

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

IPC分类号： G11B7/24 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B7/244

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B7/24038 ,  G11B7/24079

摘要： An information record medium is provided with: a first record layer (107) for recording first information, and one or more second record layers (207) disposed on said first record layer, each second layer being for recording second information, each layer of said second layers has a predetermined area (PCA1-1) where a power calibration is performed to detect an optimum recording power of recording laser beam transmitted through the first record layer and another layer of the second layers, said another layer positioned closer to said first record layer than said each layer, and in opposite areas (TA) of said another layer and said first record layer, said opposite areas being opposite to said predetermined area of said each layer of said second layers, a first absolute amount of at least one of width and depth of a groove is increased and thereby light transmittance in said opposite areas is approached to (i) light transmittance under an assumption that the first absolute amount is not increased and said another layer and said first record layer are in a recorded state, in comparison to (ii) light transmittance under an assumption that the first absolute amount is not increased and said another layer and said first record layer are in a non-recorded state.

摘要翻译： 信息记录介质设置有：用于记录第一信息的第一记录层（107）和设置在所述第一记录层上的一个或多个第二记录层（207），每个第二层用于记录第二信息，每层所述 第二层具有预定区域（PCA 1-1），其中执行功率校准以检测通过第一记录层传输的记录激光束和第二层的另一层的最佳记录功率，所述另一层位于更靠近所述第一层 记录层，并且在所述另一层和所述第一记录层的相对区域（TA）中，所述相对区域与所述第二层的每层的所述预定区域相对，第一绝对量的至少一个 增加凹槽的宽度和深度，从而在所述相对区域中的光透射率接近（i）透光率，假设第一绝对量 在不假定第一绝对量不增加且所述另一层和所述第一记录层为...的情况下，与（ii）透光率相比，t不增加，并且所述另一层和所述第一记录层处于记录状态 非记录状态。

公开(公告)号：US06687213B1

公开(公告)日：2004-02-03

申请号：US09544547

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： G11B724

CPC分类号： G11B7/261 ,  G11B7/007 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24085

摘要： An optical recording medium which can produce a read signal free from waveform distortion during reproduction of information. The optical recording medium comprises groove information tracks on which information pits carrying information data is to be formed, and prepit tracks provided with a plurality of previously formed land prepits connected to the groove information tracks. The groove information tracks and the prepit tracks are arranged in alternation. The groove information track has a track width smaller in at least a part of each of sections in which the land prepit exists than in sections in which no land prepit exists.

摘要翻译： 一种光学记录介质，其可以在再现信息期间产生没有波形失真的读取信号。 光记录介质包括凹槽信息轨道，在其上将形成载有信息数据的信息坑，以及预先设置有多个预先形成的与凹槽信息轨迹相连的焊盘预制凹坑的轨迹。 凹槽信息轨道和预凹坑轨道交替排列。 沟槽信息轨道在存在土地预制品的每个部分的至少一部分中的轨道宽度小于不存在土地预制物的部分中的轨道宽度。

公开(公告)号：US06679430B2

公开(公告)日：2004-01-20

申请号：US09893731

申请日：2001-06-27

申请人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi

发明人： Masahiro Kato ,  Eiji Muramatsu ,  Atsushi Yamaguchi ,  Shoji Taniguchi

IPC分类号： G06K1906

CPC分类号： G11B7/00718 ,  G11B7/00736 ,  G11B7/24085 ,  G11B7/261 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  Y10T428/21

摘要： A recording medium comprises pairs of groove tracks and land tracks provided side by side while being bent periodically, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of a curvature smaller than a radius of a curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks.

摘要翻译： 一种记录介质包括一对槽周边并且周期性地弯曲设置的槽轨道和槽脊轨迹，预先形成在槽脊轨道上并携带关于槽轨道的信息的多个焊盘预制坑以及至少形成在槽轨道上的记录层 和陆地轨道。 平坦凹坑预凹坑的曲率半径小于凹槽轨迹的边缘曲率的半径，并且由凹槽轨迹的侧面连续延伸的曲面限定。 凹槽轨道的面对凹坑预凹坑的连续弯曲表面的那些侧面是使凹槽轨道缩窄的曲面。