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：US07760589B2

公开(公告)日：2010-07-20

申请号：US11813888

申请日：2006-01-13

申请人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

发明人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

IPC分类号： G11B21/08

CPC分类号： G11B7/007 ,  G11B7/0045 ,  G11B2007/0013

摘要： An information recording apparatus (300) is provided with: a first recording device (302 etc.) for recording the first information into a first area of the first layer; a second recording device (302 etc.) for recording the second information into a predetermined area of the second layer; and a controlling device (305) for controlling the second recording device to record the second information by the laser light, while displacing an edge indicating an innermost or outermost circumference of the predetermined area in which a penetrated area penetrated by the laser light is included in the first area, in a direction to approach an edge of the predetermined area in which the penetrated area is not included in the first area, only by a predetermined length corresponding to a tolerance of a change amount indicating a change in the reproduction quality.

摘要翻译： 信息记录装置（300）具有：第一记录装置（302等），用于将第一信息记录到第一层的第一区域中; 用于将第二信息记录到第二层的预定区域中的第二记录装置（302等）; 以及控制装置（305），用于控制第二记录装置通过激光记录第二信息，同时移动指示包含激光穿透的穿透区域的预定区域的最内周或最外周的边缘 所述第一区域在与所述预定区域的边缘接近的方向上，所述预定区域的所述穿透区域不包括在所述第一区域中，仅具有与表示所述再现质量的变化的变化量的公差相对应的预定长度。

公开(公告)号：US20080043584A1

公开(公告)日：2008-02-21

申请号：US11795199

申请日：2006-01-13

申请人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

发明人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/08511 ,  G11B2007/0013

摘要： In an information recording medium including at least a first recording layer (L0 layer) capable of recording information and a second recording layer (L1 layer) capable of recording information, an information recording device (300) records information in a predetermined area (12) of the second recording layer by a laser beam which has passed through a transmission area (11) of the first recording layer. The information recording medium (300) includes recording means (302, etc.) for recording the information in the first recording layer or the second recording layer, judgment means for judging whether an unrecorded amount indicating the size of the unrecorded area in the radial direction in the transmission area is smaller than a predetermined amount, and control means used when the unrecorded area is judged to be smaller than the predetermined amount, for controlling the recording means to record information in the predetermined area.

摘要翻译： 在包括能够记录信息的至少第一记录层（L0层）和能够记录信息的第二记录层（L1层）的信息记录介质中，信息记录装置（300）在预定区域（12）中记录信息， 的第二记录层通过已经穿过第一记录层的透射区域（11）的激光束。 信息记录介质（300）包括用于将信息记录在第一记录层或第二记录层中的记录装置（302等），判断装置，用于判断表示径向未记录区域的尺寸的未记录量 在所述传输区域中小于预定量，以及当所述未记录区域被判断为小于所述预定量时使用的控制装置，用于控制所述记录装置在所述预定区域中记录信息。

公开(公告)号：US07885162B2

公开(公告)日：2011-02-08

申请号：US11795199

申请日：2006-01-13

申请人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

发明人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/08511 ,  G11B2007/0013

摘要： In an information recording medium including at least a first recording layer (L0 layer) capable of recording information and a second recording layer (L1 layer) capable of recording information, an information recording device (300) records information in a predetermined area (12) of the second recording layer by a laser beam which has passed through a transmission area (11) of the first recording layer. The information recording medium (300) includes recording means (302, etc.) for recording the information in the first recording layer or the second recording layer, judgment means for judging whether an unrecorded amount indicating the size of the unrecorded area in the radial direction in the transmission area is smaller than a predetermined amount, and control means used when the unrecorded area is judged to be smaller than the predetermined amount, for controlling the recording means to record information in the predetermined area.

摘要翻译： 在包括能够记录信息的至少第一记录层（L0层）和能够记录信息的第二记录层（L1层）的信息记录介质中，信息记录装置（300）在预定区域（12）中记录信息， 的第二记录层通过已经穿过第一记录层的透射区域（11）的激光束。 信息记录介质（300）包括用于将信息记录在第一记录层或第二记录层中的记录装置（302等），判断装置，用于判断表示径向未记录区域的尺寸的未记录量 在所述传输区域中小于预定量，以及当所述未记录区域被判断为小于所述预定量时使用的控制装置，用于控制所述记录装置在所述预定区域中记录信息。

公开(公告)号：US20090003175A1

公开(公告)日：2009-01-01

申请号：US11813888

申请日：2006-01-13

申请人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

发明人： Eisaku Kawano ,  Masahiro Kato ,  Akira Shirota ,  Masahiro Miura ,  Tohru Kanegae ,  Shoji Taniguchi ,  Eiji Muramatsu

IPC分类号： G11B7/20

CPC分类号： G11B7/007 ,  G11B7/0045 ,  G11B2007/0013

摘要： An information recording apparatus (300) is provided with: a first recording device (302 etc.) for recording the first information into a first area of the first layer; a second recording device (302 etc.) for recording the second information into a predetermined area of the second layer; and a controlling device (305) for controlling the second recording device to record the second information by the laser light, while displacing an edge indicating an innermost or outermost circumference of the predetermined area in which a penetrated area penetrated by the laser light is included in the first area, in a direction to approach an edge of the predetermined area in which the penetrated area is not included in the first area, only by a predetermined length corresponding to a tolerance of a change amount indicating a change in the reproduction quality.

摘要翻译： 信息记录装置（300）具有：第一记录装置（302等），用于将第一信息记录到第一层的第一区域中; 用于将第二信息记录到第二层的预定区域中的第二记录装置（302等）; 以及控制装置（305），用于控制第二记录装置通过激光记录第二信息，同时移动指示包含激光穿透的穿透区域的预定区域的最内周或最外周的边缘 所述第一区域在与所述预定区域的边缘接近的方向上，所述预定区域的所述穿透区域不包括在所述第一区域中，仅具有与表示所述再现质量的变化的变化量的公差相对应的预定长度。

公开(公告)号：US20100149951A1

公开(公告)日：2010-06-17

申请号：US12593552

申请日：2008-03-13

申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miura ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kitano

发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Masahiro Miura ,  Atsushi Yamaguchi ,  Kazuo Kuroda ,  Kazutoshi Kitano

IPC分类号： G11B7/135

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

摘要： An information recording/reproducing device includes a light source separately projecting laser light for recording or reproducing, an optical system leading the projected laser light to a recording medium, a diffracting element separating laser light into main- and beam sub-beams, an evanescent light generating element irradiating evanescent light in relation to the separated sub-beam to a track where no recording pit is formed, a sub-light receiving element for receiving return light in relation to the sub-beam, a moving element for moving the evanescent light generating element in relation to the sub-beam to a direction to change a gap with the recording surface, and a control element; for controlling 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 a light amount of the return light in relation to the received sub-beam.

摘要翻译： 信息记录/再现装置包括分别投射用于记录或再现的激光的光源，将投射的激光导向记录介质的光学系统，将激光分离成主光束和光束子光束的衍射元件，ev逝光 发射元件相对于分离的子光束照射到不形成记录凹坑的轨道的ev逝光，用于接收与子光束相关的返回光的子光接收元件，用于移动产生渐逝光的移动元件 元件相对于子光束到改变与记录表面的间隙的方向，以及控制元件; 用于控制移动元件，以使得间隙根据包含相对于所接收的子光束的指示返回光的光量的信号的间隙误差信号而变为预定目标值。

公开(公告)号：US06480448B1

公开(公告)日：2002-11-12

申请号：US09375565

申请日：1999-08-17

申请人： Eisaku Kawano ,  Yoshitaka Shimoda ,  Hidehiro Ishii ,  Eiji Muramatsu ,  Masahiro Kato ,  Kunihiko Horikawa

发明人： Eisaku Kawano ,  Yoshitaka Shimoda ,  Hidehiro Ishii ,  Eiji Muramatsu ,  Masahiro Kato ,  Kunihiko Horikawa

IPC分类号： G11B700

CPC分类号： G11B7/126 ,  G11B7/0045

摘要： In a disc player, a CAL pattern is recorded in a disc-like optical recording medium during a recording stand-by time period, which is yielded by a difference between a data rate in inputting information to a disc player 50 and a recording rate in recording information into the optical recording medium. The CAL pattern is reproduced from the optical recording medium, the reproduced pattern is evaluated, and an irradiation intensity of a laser beam is optimized for recording information in the optical recording medium, by a laser-output controller 30.

摘要翻译： 在光盘播放器中，在记录待机时间段期间，在盘状光学记录介质中记录CAL图案，其由输入到盘播放器50的信息的数据速率与记录速率之间的差异而产生 将信息记录到光学记录介质中。 通过激光输出控制器30，从光学记录介质再现CAL图案，评估再现图案，并优化激光束的照射强度以记录在光学记录介质中的信息。

公开(公告)号：US07800999B2

公开(公告)日：2010-09-21

申请号：US10577227

申请日：2005-06-30

申请人： Eiji Muramatsu ,  Kunihiko Horikawa ,  Kazuo Kuroda

发明人： Eiji Muramatsu ,  Kunihiko Horikawa ,  Kazuo Kuroda

IPC分类号： G11B7/12

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

摘要： An information recording medium (100) is provided with: a first recording layer (L0 layer) having a first calibration area (103-1) in which test information for calibrating a power of laser light in recording record information can be recorded; and a second recording layer (L1 layer) having a second calibration area (103-2) in which the test information can be recorded and in which at least one portion of a recording area faces the first calibration area, wherein the first calibration area and the second calibration area including a space area (103U-1, 103U-2) having a predetermined size in positions facing each other, the test information is recorded in a recording area (103R-1) located on one side, centered on the space area, in the first calibration area, and the test information is recorded in a recording area (103R-2) located on other side which is opposite to the one side, centered on the space area, in the second calibration area.

摘要翻译： 信息记录介质（100）具有：具有第一校准区域（103-1）的第一记录层（L0层），其中可以记录用于校准记录记录信息中的激光功率的测试信息; 和具有第二校准区域（103-2）的第二记录层（L1层），其中可以记录测试信息，并且记录区域的至少一部分面向第一校准区域，其中第一校准区域和 所述第二校准区域包括在彼此面对的位置中具有预定尺寸的空间区域（103U-1,103U-2），所述测试信息被记录在位于一侧的记录区域（103R-1）中， 区域，并且测试信息被记录在第二校准区域中位于与空间区域相对的另一侧的另一侧的记录区域（103R-2）中。

公开(公告)号：US20100118684A1

公开(公告)日：2010-05-13

申请号：US12593439

申请日：2008-03-13

申请人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Kazutoshi Kitano ,  Atsushi Yamaguchi ,  Masahiro Miura ,  Kazuo Kuroda

发明人： Kunihiko Horikawa ,  Eiji Muramatsu ,  Kazutoshi Kitano ,  Atsushi Yamaguchi ,  Masahiro Miura ,  Kazuo Kuroda

IPC分类号： G11B7/135

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

摘要： An information recording and reproducing device diffracts by a diffracting means (14) to make laser light separated into a main beam and a sub-beam, irradiates evanescent light in relation to the main beam, by an evanescent light generating means (21), to a track where a recording pit provided on a recording surface of a recording medium is formed and also irradiates 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 means (210) moves the evanescent light generating means to a direction to change a gap with the recording surface. Further, a judging means (40) judges an uneven state of the recording pit formed on the recording medium, a signal generating means (3161) generates a gap error signal from a signal indicative of a return light amount in relation to the sub-beam or the main beam in accordance with the result, a control means (315) controls the moving means in accordance with a gap error signal so as to make the gap become a target value in response to the uneven state to be judged.

摘要翻译： 信息记录和再现装置通过衍射装置（14）衍射，以使分离成主光束和子光束的激光相对于主光束相对于主光束照射消逝光，由ev逝光发生装置（21），以 形成记录介质的记录表面上的记录凹坑的轨道，并且还将相对于要分离的子光束的ev逝光照射到不形成记录介质的记录表面上的记录凹坑的轨道 。 移动装置（210）将瞬逝光发生装置移动到与记录表面改变间隙的方向。 此外，判断装置（40）判断在记录介质上形成的记录凹坑的不均匀状态，信号产生装置（3161）从表示相对于子光束的返回光量的信号产生间隙误差信号 或主光束，根据结果，控制装置（315）根据间隙误差信号控制移动装置，以使得间隙响应于待判断的不均匀状态而变为目标值。

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。