公开(公告)号：US20100008200A1

公开(公告)日：2010-01-14

申请号：US12497951

申请日：2009-07-06

Applicant: Koichiro Ogihara

Inventor： Koichiro Ogihara

IPC: G11B7/00

CPC classification number: G11B19/12

Abstract: An optical disc apparatus includes: an objective lens that condenses a first light beam, which is emitted from a light source and corresponds to a first optical disc, and that illuminates the first light beam to an unknown disc whose type is unknown; a driving section that drives the objective lens in a focus direction approaching or becoming distant from the unknown disc; a rotation section that rotates the unknown disc; a signal processing section that generates a first reproduction signal indicating a total amount of a first returning light beam generated by reflection of the first light beam from the unknown disc; and a detecting section that detects a first signal recording surface, which corresponds to the first optical disc, from the unknown disc on the basis of the first reproduction signal.

Abstract translation: 光盘装置包括：物镜，其将从光源发射并对应于第一光盘的第一光束会聚，并将第一光束照射到未知的类型的未知光盘; 驱动所述物镜在接近或远离所述未知光盘的聚焦方向上驱动所述物镜; 旋转所述未知盘的旋转部; 信号处理部，其生成表示通过来自未知光的第一光束的反射而产生的第一返回光束的总量的第一再现信号; 以及检测部，其基于第一再现信号，从未知光盘检测与第一光盘对应的第一信号记录面。

公开(公告)号：US06868051B2

公开(公告)日：2005-03-15

申请号：US09957935

申请日：2001-09-21

Applicant: Koichiro Ogihara

Inventor： Koichiro Ogihara

IPC: G11B7/004 ,  G11B19/12 ,  G11B7/00

CPC classification number: G11B19/12

Abstract: The frequency components of the groove wobbles of disks are extracted from push-pull signals SPP by first and second filters in a wobble detecting section. The wobble detecting section supplies to the controller the detection levels of the frequency components. The controller identifies the kind of the mounted optical disks based on the detection levels.

Abstract translation: 通过摆动检测部分中的第一和第二滤波器从推挽信号SPP中提取盘的槽摆动的频率分量。 摆动检测部分向控制器提供频率分量的检测电平。 控制器基于检测级别来识别安装的光盘的种类。

公开(公告)号：US07403456B2

公开(公告)日：2008-07-22

申请号：US10843835

申请日：2004-05-11

Applicant: Koichiro Ogihara

Inventor： Koichiro Ogihara

IPC: G11B7/00

CPC classification number: G11B20/10 ,  G11B7/00557 ,  G11B7/0062

Abstract: An optical disc recording method and apparatus is capable of overwriting a phase change optical disc at high speed. With a preceding erasing beam out of two laser beams, a modulation component in an RF signal recorded on an optical disc is erased to a state where no problem occurs (the reflectance difference is reduced) and the top level is decreased to 70 to 40% of a top level of an original RF signal. After that, with the subsequent recording beam, a space is recorded at a laser power at which top level is reset to the original state (before the erasing process), and a mark is recorded at a laser power which can sufficiently decrease the bottom level. Consequently, even when the recording speed is the quadruple speed (about 1.6 to 2 times of a specification) much higher than a specific recording speed (for example, 2 to 2.4×) of a phase change optical disc, overwriting can be performed with a recording characteristic which can satisfy a regenerating characteristic specification.

Abstract translation: 光盘记录方法和装置能够高速地重写相变光盘。 利用两个激光束中的先前的擦除光束，记录在光盘上的RF信号中的调制分量被擦除到没有问题发生的状态（反射率差减小），并且顶部电平降低到70至40％ 的原始RF信号的顶级。 之后，利用随后的记录光束，以最高电平复位到原始状态（擦除处理之前）的激光功率记录空间，并且以能够充分降低底部电平的激光功率记录标记 。 因此，即使记录速度比相变光盘的特定记录速度（例如2〜2.4×）高四倍的速度（规格的约1.6〜2倍），也可以以 可以满足再生特性规格的记录特性。

公开(公告)号：US20050002309A1

公开(公告)日：2005-01-06

申请号：US10843835

申请日：2004-05-11

Applicant: Koichiro Ogihara

Inventor： Koichiro Ogihara

IPC: G11B7/0045 ,  G11B5/09 ,  G11B7/00 ,  G11B7/0055 ,  G11B7/006 ,  G11B20/10

CPC classification number: G11B20/10 ,  G11B7/00557 ,  G11B7/0062

Abstract: The present invention provides an optical disc recording method and apparatus capable of overwriting a phase change optical disc at high speed. With a preceding erasing beam out of two laser beams, a modulation component in an RF signal recorded on an optical disc is erased to a state where no problem occurs (the reflectance difference is reduced) and the top level is decreased to 70 to 40% of a top level of an original RF signal. After that, with the subsequent recording beam, a space is recorded at a laser power at which top level is reset to the original state (before the erasing process), and a mark is recorded at a laser power which can sufficiently decrease the bottom level. Consequently, even when the recording speed is the quadruple speed (about 1.6 to 2 times of a specification) much higher than a specific recording speed (for example, 2 to 2.4×) of a phase change optical disc, overwriting can be performed with a recording characteristic which can satisfy a regenerating characteristic specification.

Abstract translation: 本发明提供能够高速重写相变光盘的光盘记录方法和装置。 利用两个激光束中的先前的擦除光束，记录在光盘上的RF信号中的调制分量被擦除到没有问题发生的状态（反射率差减小），并且顶部电平降低到70至40％ 的原始RF信号的顶级。 之后，利用随后的记录光束，以最高电平复位到原始状态（擦除处理之前）的激光功率记录空间，并且以能够充分降低底部电平的激光功率记录标记 。 因此，即使记录速度比相变光盘的特定记录速度（例如2〜2.4×）高四倍的速度（规格的约1.6〜2倍），也可以以 可以满足再生特性规格的记录特性。

公开(公告)号：US5173816A

公开(公告)日：1992-12-22

申请号：US619894

申请日：1990-11-28

Applicant: Koichiro Ogihara

Inventor： Koichiro Ogihara

IPC: G11B19/10 ,  G11B19/12

CPC classification number: G11B19/10 ,  G11B19/12

Abstract: A disc drive unit in which a controller detects the storage capacity of the disc cartridge during loading into the drive by interrogating switches which are actuated by capacity indication markers on the disc cartridge.

Abstract translation: 一种盘驱动单元，其中控制器通过询问由盘盒上的容量指示标记致动的开关来检测在装入驱动器期间盘盒的存储容量。

公开(公告)号：US08159924B2

公开(公告)日：2012-04-17

申请号：US12395820

申请日：2009-03-02

Applicant: Masaki Uchida ,  Koichiro Ogihara

Inventor： Masaki Uchida ,  Koichiro Ogihara

IPC: G11B7/135 ,  G11B11/00

CPC classification number: G11B7/0945 ,  G11B7/0908 ,  G11B2007/0006

Abstract: A device includes: an objective lens that serves as a lens having a first numerical aperture when a first optical beam corresponding to a first optical disc converges on the first optical disc while serving as a lens having a second numerical aperture when a second optical beam corresponding to a second optical disc converges on the second optical disc; a section that generates a reflection optical signal from the first or second optical beam reflected by the first or second optical disc; and a section that determines whether an unknown disc is the first optical disc based on a degree of matching between the waveform of the reflection optical signal obtained when the first optical beam is emitted to the first optical disc, and the waveform of the reflection optical signal obtained when the first optical beam is emitted to the unknown disc.

Abstract translation: 一种装置包括：当第一光束对应于第一光盘会聚在第一光盘上同时用作具有第二数值孔径的透镜时，当第二光束对应于第二光束时，用作具有第一数值孔径的透镜的物镜 到第二光盘会聚在第二光盘上; 从由第一或第二光盘反射的第一或第二光束产生反射光信号的部分; 以及基于当第一光束发射到第一光盘时获得的反射光信号的波形与反射光信号的波形之间的匹配程度来确定未知盘是否是第一光盘的部分 当第一光束被发射到未知光盘时获得。

公开(公告)号：US20090245071A1

公开(公告)日：2009-10-01

申请号：US12395820

申请日：2009-03-02

Applicant: Masaki UCHIDA ,  Koichiro Ogihara

Inventor： Masaki UCHIDA ,  Koichiro Ogihara

IPC: G11B7/00

CPC classification number: G11B7/0945 ,  G11B7/0908 ,  G11B2007/0006

Abstract: A device includes: an objective lens that serves as a lens having a first numerical aperture when a first optical beam corresponding to a first optical disc converges on the first optical disc while serving as a lens having a second numerical aperture when a second optical beam corresponding to a second optical disc converges on the second optical disc; a section that generates a reflection optical signal from the first or second optical beam reflected by the first or second optical disc; and a section that determines whether an unknown disc is the first optical disc based on a degree of matching between the waveform of the reflection optical signal obtained when the first optical beam is emitted to the first optical disc, and the waveform of the reflection optical signal obtained when the first optical beam is emitted to the unknown disc.

Abstract translation: 一种装置包括：当第一光束对应于第一光盘会聚在第一光盘上同时用作具有第二数值孔径的透镜时，当第二光束对应于第二光束时，用作具有第一数值孔径的透镜的物镜 到第二光盘会聚在第二光盘上; 从由第一或第二光盘反射的第一或第二光束产生反射光信号的部分; 以及基于当第一光束发射到第一光盘时获得的反射光信号的波形与反射光信号的波形之间的匹配程度来确定未知盘是否是第一光盘的部分 当第一光束被发射到未知光盘时获得。

公开(公告)号：US07102978B2

公开(公告)日：2006-09-05

申请号：US10344215

申请日：2002-06-10

Applicant: Koichiro Ogihara

Inventor： Koichiro Ogihara

IPC: G11B7/005

CPC classification number: G11B7/005 ,  G11B7/00 ,  G11B20/10009

Abstract: The present invention is applied to an optical disk apparatus which records data on and/or plays back data from one of a variety of DVD optical disks. The present invention generates a binarization threshold S3 by offsetting an envelope S2 of a playback signal RF by an offset voltage V1, and binarizes the playback signal RF (S4) according to the binarization threshold.

Abstract translation: 本发明应用于从各种DVD光盘之一记录数据和/或重放数据的光盘装置。 本发明通过将重放信号RF的包络线S 2偏移偏移电压V 1来生成二值化阈值S 3，并且根据二值化阈值二值化重放信号RF（S 4）。

公开(公告)号：US06256282B1

公开(公告)日：2001-07-03

申请号：US09120416

申请日：1998-07-21

Applicant: Tamotsu Yamagami ,  Toru Takeda ,  Shoei Kobayashi ,  Koichiro Ogihara

Inventor： Tamotsu Yamagami ,  Toru Takeda ,  Shoei Kobayashi ,  Koichiro Ogihara

IPC: G11B700

CPC classification number: G11B7/24082 ,  G11B7/00736 ,  G11B7/24079 ,  G11B7/24085 ,  G11B20/1217 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1277 ,  G11B2020/1278

Abstract: A novel recording medium capable of realizing high density, reliability in a recording/reproducing operation and facilitating the process which is performed by a drive apparatus is provided. An amplitude amount of wobbling of a track is made to be 10 nm to 15 nm and a track pitch of the track is made 0.74 &mgr;m to 0.82 &mgr;m. The determined values enable large-capacity recording to be realized and the recording/reproducing performance to be prevented from being deteriorated. As administration information, recommended information for a recording/reproducing operation at an inner peripheral position and an outer peripheral position is recorded. The size of data in a linking section is made to be the same as the sector for constituting a data block.

Abstract translation: 提供了一种能够在记录/再现操作中实现高密度，可靠性以及促进由驱动装置执行的处理的新型记录介质。轨迹的摆动幅度为10nm至15nm，并且 轨道的轨道距离为0.74 mum至0.82 mum。 所确定的值使得能够实现大容量记录，并且防止记录/再现性能劣化。 作为管理信息，记录在内周位置和外周位置处的记录/再现操作的推荐信息。 将链接部分中的数据的大小与用于构成数据块的扇区相同。