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公开(公告)号：US20060120232A1
公开(公告)日：2006-06-08
申请号：US10542853
申请日：2003-12-25
申请人： Naoharu Yanagawa , Tatsuhiro Yone , Masahiro Kato , Akira Shirota , Kunihiko Horikawa , Eiji Muramatsu
发明人： Naoharu Yanagawa , Tatsuhiro Yone , Masahiro Kato , Akira Shirota , Kunihiko Horikawa , Eiji Muramatsu
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/00736 , G11B7/00745 , G11B7/0901 , G11B7/094 , G11B7/24085
摘要： A tracking servo control device for making a tracking servo control to apply a light beam onto a groove track on a recording medium where the groove track and a pre-pit are preformed, is provided with: a first generation device which generates a first regenerative signal based on a reflected light from the recording medium when at least a part of the pre-pit is formed within a radiation range of the light beam onto the groove track; a second generation device which generates a second regenerative signal based on a reflected light from the recording medium when the pre-pit is formed outside the radiation range of the light beam; and a calculation device which calculates an offset value in the tracking servo control based on the first regenerative signal and the second regenerative signal that are generated.
摘要翻译： 一种用于进行跟踪伺服控制的跟踪伺服控制装置设置有：第一生成装置，其产生第一再生信号，所述跟踪伺服控制装置用于进行跟踪伺服控制，以将光束施加到预定凹槽轨道和预凹坑的记录介质上的凹槽轨道上 当所述光束的至少一部分在所述凹槽轨道的辐射范围内形成时，基于来自所述记录介质的反射光; 第二代装置，当预制坑形成在光束的辐射范围之外时，基于来自记录介质的反射光产生第二再生信号; 以及计算装置，其基于所生成的第一再生信号和第二再生信号，计算跟踪伺服控制中的偏移值。
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公开(公告)号：US07274644B2
公开(公告)日：2007-09-25
申请号：US10525766
申请日：2003-08-27
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。
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公开(公告)号：US20060007832A1
公开(公告)日：2006-01-12
申请号：US10525766
申请日：2003-08-27
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。
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公开(公告)号：US07260052B2
公开(公告)日：2007-08-21
申请号：US10701077
申请日：2003-11-05
申请人： Masahiro Kato , Tatsuhiro Yone , Atsushi Yamaguchi , Eiji Muramatsu , Shoji Taniguchi , Toshihiko Takishita , Seiro Oshima , Takao Tagiri
发明人： Masahiro Kato , Tatsuhiro Yone , Atsushi Yamaguchi , Eiji Muramatsu , Shoji Taniguchi , Toshihiko Takishita , Seiro Oshima , Takao Tagiri
IPC分类号： G11B7/24
CPC分类号： G11B7/24085 , G11B7/0053 , G11B7/00745 , G11B7/0079
摘要： A groove track and a land track are alternately and spirally formed on an information recording medium. On the land track neighboring the groove track, pre-information indicating position information of a track on a disc is formed as a prepit. On the information recording medium, an embossed area is formed so that information about a copyright and for preventing an illegal copy cannot be rewritten. In the embossed area, an embossed configuration including a pit and a space of predetermined depths is formed. The prepit in the embossed area is formed so that the prepit has an optimized configuration according to a pit length and a space length in the embossed area which the prepit neighbors. Consequently, interference between the embossed configuration and the prepit can be prevented even in a case that the prepit is formed in addition to the embossed configuration in the embossed area.
摘要翻译： 凹槽轨道和脊轨道交替地并螺旋地形成在信息记录介质上。 在与凹槽轨道相邻的陆地轨道上，指示盘上的轨道的位置信息的预先信息被形成为预凹坑。 在信息记录介质上，形成压花区域，使得关于版权和防止非法复制的信息不能被重写。 在压纹区域中，形成包括凹坑和预定深度空间的压纹构造。 形成压纹区域中的预凹坑形成为使得预凹坑具有根据凹坑长度和预凹坑邻近的压纹区域中的间隔长度的优化配置。 因此，即使在浮雕区域中除了压花构造之外还形成预凹坑的情况下，也可以防止压花构造与预制坑之间的干涉。
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公开(公告)号：US06687214B2
公开(公告)日：2004-02-03
申请号：US09923804
申请日：2001-08-08
申请人： Masahiro Kato , Eiji Muramatsu , Atsushi Yamaguchi , Shoji Taniguchi , Seiro Oshima , Makoto Matsukawa , Takao Tagiri , Kazuhiro Yamato , Tatsuhiro Yone
发明人： Masahiro Kato , Eiji Muramatsu , Atsushi Yamaguchi , Shoji Taniguchi , Seiro Oshima , Makoto Matsukawa , Takao Tagiri , Kazuhiro Yamato , Tatsuhiro Yone
IPC分类号： G11B724
CPC分类号： G11B27/24 , G11B7/007 , G11B7/00718 , G11B7/24085 , G11B7/261 , G11B27/3027 , G11B2220/216 , G11B2220/2575
摘要： A recording medium includes pairs of groove tracks and land tracks having periodically formed bent portion provided side by side on a substrate, 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 mean curvature smaller than a radius of mean 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. The depth of the land prepit is larger than that of the groove track.
摘要翻译： 记录介质包括：一对沟槽轨道和具有周期性地形成的在基板上并排设置的弯曲部分的槽脊轨迹，多个预先形成在槽脊轨道上的焊盘预制坑，并且携带关于凹槽轨道的信息，以及形成在其上的记录层 至少凹槽轨道和槽脊轨道。 平面预制凹坑的平均曲率半径小于陆地预制凹坑的陆地预制凹坑区域中凹槽轨迹的平均曲率半径，并且由凹槽轨道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。 土地预制坑的深度大于凹槽轨道的深度。
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公开(公告)号：US20070217310A1
公开(公告)日：2007-09-20
申请号：US10594527
申请日：2005-03-30
申请人： Akira Shirota , Kunihiko Horikawa , Hiroyuki Uchino , Yoshio Sasaki , Shoji Taniguchi , Eiji Muramatsu
发明人： Akira Shirota , Kunihiko Horikawa , Hiroyuki Uchino , Yoshio Sasaki , Shoji Taniguchi , Eiji Muramatsu
IPC分类号： G11B7/0045
CPC分类号： G11B7/1263 , G11B7/00456
摘要： The present invention provides a recording pulse generating apparatus capable of forming a recording pit having a proper shape even at the time of ultra-high-speed recording of, for example, 8×recording or higher. A recording controller 10 for generating recording pulse signals having lengths corresponding to ten kinds of lengths of pits formed at the time of recording information has a recording controller 10 for generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 4T changes from a first amplitude to a second amplitude, and generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 5T or longer changes from a third amplitude to a fourth amplitude and further changes to a fifth amplitude.
摘要翻译： 本发明提供一种记录脉冲发生装置，即使在例如8×或更高的超高速记录时也能够形成具有适当形状的记录凹坑。 用于产生具有对应于在记录信息时形成的凹坑的十种长度的长度的记录脉冲信号的记录控制器10具有用于产生记录脉冲信号的记录控制器10，使得对应于凹坑的记录脉冲信号的幅度 具有从第一幅度到第二幅度的4T长度的变化，并且产生记录脉冲信号，使得对应于长度为5T或更长的凹坑的记录脉冲信号的幅度从第三幅度变化到 第四幅度并进一步变化到第五幅度。
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公开(公告)号：US07139230B2
公开(公告)日：2006-11-21
申请号：US10237598
申请日：2002-09-10
IPC分类号： G11B7/00
CPC分类号： G11B7/00456 , G11B7/0062
摘要： The information recording apparatus irradiates a laser beam on a recording medium such as an optical disk and forms a recording mark corresponding to a recording signal to record information. A recording pulse signal includes a mark period irradiating the laser beam for forming the recording mark and a space period in which the recording mark is not formed. The mark period has a top pulse period and an intermediate bias period following the top pulse period. The mark period constituted by the top pulse period and the intermediate bias period does not have a continuous part of a plurality of pulses having a small pulse width unlike a pulse train, so that the correct recording mark can be stably formed on the recording medium without an inadequate deformation of a recording pulse shape, even in the case of a high speed recording.
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公开(公告)号：US07719943B2
公开(公告)日：2010-05-18
申请号：US10577144
申请日：2004-10-26
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B7/00456 , G11B7/126
摘要： An information recording device and method capable of forming a recording mark by suppressing thermal interference. The device applies a laser beam to a recording medium and forms a recording mark in accordance with a recording signal. The device includes a light source for emitting the laser beam, signal generation elements for generating a recording pulse signal according to the recording signal, and drive elements for driving the light source according to the recording pulse signal. The recording pulse signal has a mark period for forming the recording mark and a space period. The recording pulse signal makes the level in the entire space period equal to or shorter than a predetermined length and a part of the space period longer than the predetermined length to be off level. While the recording pulse signal is off level, the recording medium is cooled down, thereby suppressing the affect of thermal interference.
摘要翻译： 一种能够通过抑制热干扰而形成记录标记的信息记录装置和方法。 该装置将激光束施加到记录介质上，并根据记录信号形成记录标记。 该装置包括用于发射激光束的光源，用于根据记录信号产生记录脉冲信号的信号产生元件和用于根据记录脉冲信号驱动光源的驱动元件。 记录脉冲信号具有用于形成记录标记的标记周期和空间周期。 记录脉冲信号使整个空间周期中的电平等于或小于预定长度，并且使长度大于预定长度的空间周期的一部分成为关闭电平。 当记录脉冲信号为关闭电平时，记录介质被冷却，从而抑制热干扰的影响。
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公开(公告)号：US07349316B2
公开(公告)日：2008-03-25
申请号：US11543234
申请日：2006-10-05
IPC分类号： G11B7/00
CPC分类号： G11B7/00456 , G11B7/0062
摘要： The information recording apparatus irradiates a laser beam on a recording medium such as an optical disk and forms a recording mark corresponding to a recording signal to record information. A recording pulse signal includes a mark period irradiating the laser beam for forming the recording mark and a space period in which the recording mark is not formed. The mark period has a top pulse period and an intermediate bias period following the top pulse period. The mark period constituted by the top pulse period and the intermediate bias period does not have a continuous part of a plurality of pulses having a small pulse width unlike a pulse train, so that the correct recording mark can be stably formed on the recording medium without an inadequate deformation of a recording pulse shape, even in the case of a high speed recording.
摘要翻译： 信息记录装置将激光束照射在诸如光盘的记录介质上，并形成对应于记录信号的记录标记以记录信息。 记录脉冲信号包括照射用于形成记录标记的激光束的标记周期和不形成记录标记的空间周期。 标记周期具有在顶部脉冲周期之后的顶部脉冲周期和中间偏置周期。 由顶脉冲周期和中间偏置周期构成的标记周期不像脉冲序列那样具有脉冲宽度小的多个脉冲的连续部分，从而可以在记录介质上稳定地形成正确的记录标记，而无需在 记录脉冲形状的变形不足，即使在高速记录的情况下也是如此。
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10.发明授权公开(公告)号：US07564759B2
公开(公告)日：2009-07-21
申请号：US10594527
申请日：2005-03-30
申请人： Akira Shirota , Kunihiko Horikawa , Hiroyuki Uchino , Yoshio Sasaki , Shoji Taniguchi , Eiji Muramatsu
发明人： Akira Shirota , Kunihiko Horikawa , Hiroyuki Uchino , Yoshio Sasaki , Shoji Taniguchi , Eiji Muramatsu
IPC分类号： G11B20/10
CPC分类号： G11B7/1263 , G11B7/00456
摘要： The present invention provides a recording pulse generating apparatus capable of forming a recording pit having a proper shape even at the time of ultra-high-speed recording of, for example, 8×recording or higher.A recording controller 10 for generating recording pulse signals having lengths corresponding to ten kinds of lengths of pits formed at the time of recording information has a recording controller 10 for generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 4T changes from a first amplitude to a second amplitude, and generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 5T or longer changes from a third amplitude to a fourth amplitude and further changes to a fifth amplitude.
摘要翻译： 本发明提供一种记录脉冲发生装置，即使在例如8×或更高的超高速记录时也能够形成具有适当形状的记录凹坑。 用于产生具有对应于在记录信息时形成的凹坑的十种长度的长度的记录脉冲信号的记录控制器10具有用于产生记录脉冲信号的记录控制器10，使得对应于凹坑的记录脉冲信号的幅度 具有从第一幅度到第二幅度的4T长度的变化，并且产生记录脉冲信号，使得对应于具有5T或更长的长度的凹坑的记录脉冲信号的幅度从第三幅度变化到第四幅度 并进一步改变为第五幅度。
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