公开(公告)号：US07542387B2

公开(公告)日：2009-06-02

申请号：US11183085

申请日：2005-07-15

申请人： Yoshinori Ishikawa ,  Motoyuki Suzuki

发明人： Yoshinori Ishikawa ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B2007/0013

摘要： Defocus detection device and method capable of detecting a defocus accurately during recording of information to an optical disk having a plurality of recording layers and an optical disk unit using the device and method are provided. A temporal restriction is imposed on defocus detection and besides, in comparison with a level for detection of a first change of a focus error signal developing during a defocus, a level for detection of a successively occurring second change of a polarity inverse to that of the first change is made to be smaller. When the first level is exceeded and thereafter the second level is exceeded within a restricted time, a defocus is detected.

摘要翻译： 提供了能够在使用该装置和方法向具有多个记录层的光盘和光盘单元记录信息期间准确地检测散焦的散焦检测装置和方法。 对散焦检测施加时间限制，此外，与用于检测在散焦期间产生的聚焦误差信号的第一变化的电平相比，检测与第二变化相反的极性的连续发生的第二变化的电平 第一次变化更小。 当超过第一级，此后在受限时间内超过第二级时，检测到散焦。

公开(公告)号：US07106666B2

公开(公告)日：2006-09-12

申请号：US10682234

申请日：2003-10-10

申请人： Yoshinori Ishikawa ,  Yukinobu Tada ,  Motoyuki Suzuki

发明人： Yoshinori Ishikawa ,  Yukinobu Tada ,  Motoyuki Suzuki

IPC分类号： G11B21/08

CPC分类号： G11B7/08517 ,  G11B7/08511

摘要： During a normal operation, a tracking control signal from a tracking controller is supplied to an adder via a first switch and to a radial deviation component detector. The radial deviation component detector determines a radial deviation component EC of AC caused by radial deviation of an optical disk from the tracking control signal and supplied that component to the adder via another switch. For a track jump, the first switch is turned OFF, cutting off the tracking control signal. Thus, the radial deviation component EC and a jump pulse signal from a jump signal generator are added together by the adder. However, an offset of the tracking control signal TC detected by a DC component detector is further added. To avoid instability, the track jump is compensated so as to be normally carried out even if a DC offset is added to a tracking control signal.

摘要翻译： 在正常操作期间，来自跟踪控制器的跟踪控制信号通过第一开关和径向偏差分量检测器提供给加法器。 径向偏差分量检测器确定由光盘的径向偏离与跟踪控制信号引起的AC的径向偏差分量EC，并通过另一个开关将该分量提供给加法器。 对于轨道跳跃，第一个开关关闭，切断跟踪控制信号。 因此，来自跳跃信号发生器的径向偏差分量EC和跳跃脉冲信号由加法器相加在一起。 然而，还增加了由DC分量检测器检测到的跟踪控制信号TC的偏移。 为了避免不稳定性，即使对跟踪控制信号添加DC偏移，也可以补偿轨迹跳跃，以便正常地进行。

公开(公告)号：US20060092777A1

公开(公告)日：2006-05-04

申请号：US11183085

申请日：2005-07-15

申请人： Yoshinori Ishikawa ,  Motoyuki Suzuki

发明人： Yoshinori Ishikawa ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B2007/0013

摘要： Defocus detection device and method capable of detecting a defocus accurately during recording of information to an optical disk having a plurality of recording layers and an optical disk unit using the device and method are provided. A temporal restriction is imposed on defocus detection and besides, in comparison with a level for detection of a first change of a focus error signal developing during a defocus, a level for detection of a successively occurring second change of a polarity inverse to that of the first change is made to be smaller. When the first level is exceeded and thereafter the second level is exceeded within a restricted time, a defocus is detected.

公开(公告)号：US07457221B2

公开(公告)日：2008-11-25

申请号：US11139382

申请日：2005-05-27

申请人： Takeyoshi Kataoka ,  Motoyuki Suzuki ,  Fumio Isshiki ,  Yoshinori Ishikawa

发明人： Takeyoshi Kataoka ,  Motoyuki Suzuki ,  Fumio Isshiki ,  Yoshinori Ishikawa

IPC分类号： G11B7/00

CPC分类号： G11B7/0901 ,  G11B7/0053 ,  G11B7/0912 ,  G11B2007/0013

摘要： There is provided an optical disc recording/reproduction device capable of accurately performing the focus offset and spherical aberration correction even for an optical disc having no data recorded. The optical disc recording/reproduction device includes: an optical pickup having a spherical aberration corrector for correcting the spherical aberration of an objective lens; and various control units; and can generate a tracking error signal (TE) at least by a push-pull signal by the push-pull method. When an optical disc mounted is in an unrecorded state, the spherical aberration correction amount and the objective lens focus offset amount are adjusted according to the push-pull signal, predetermined data is recorded on the optical disc, and the reproduction signal obtained by the data is used to adjust the spherical aberration correction amount in the spherical aberration corrector of the optical pickup and the focus offset amount of the objective lens.

摘要翻译： 提供了即使对于没有记录数据的光盘也能够精确地执行聚焦偏移和球面像差校正的光盘记录/再现装置。 光盘记录/再现装置包括：具有用于校正物镜的球面像差的球面像差校正器的光学拾取器; 和各种控制单元; 并且可以通过推挽方法至少通过推挽信号产生跟踪误差信号（TE）。 当安装的光盘处于未记录状态时，根据推挽信号调整球面像差校正量和物镜聚焦偏移量，将预定数据记录在光盘上，并且通过数据获得的再现信号 用于调整光学拾取器的球面像差校正器中的球面像差校正量和物镜的聚焦偏移量。

公开(公告)号：US07983122B2

公开(公告)日：2011-07-19

申请号：US12360235

申请日：2009-01-27

申请人： Yoshinori Ishikawa ,  Motoyuki Suzuki

发明人： Yoshinori Ishikawa ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B2007/0013

摘要： Defocus detection device and method capable of detecting a defocus accurately during recording of information to an optical disk having a plurality of recording layers and an optical disk unit using the device and method are provided. A temporal restriction is imposed on defocus detection and besides, in comparison with a level for detection of a first change of a focus error signal developing during a defocus, a level for detection of a successively occurring second change of a polarity inverse to that of the first change is made to be smaller. When the first level is exceeded and thereafter the second level is exceeded within a restricted time, a defocus is detected.

摘要翻译： 提供了能够在使用该装置和方法向具有多个记录层的光盘和光盘单元记录信息期间准确地检测散焦的散焦检测装置和方法。 对散焦检测施加时间限制，此外，与用于检测在散焦期间产生的聚焦误差信号的第一变化的电平相比，检测与第二变化相反的极性的连续发生的第二变化的电平 第一次变化更小。 当超过第一级，此后在受限时间内超过第二级时，检测到散焦。

公开(公告)号：US20060104183A1

公开(公告)日：2006-05-18

申请号：US11139382

申请日：2005-05-27

申请人： Takeyoshi Kataoka ,  Motoyuki Suzuki ,  Fumio Isshiki ,  Yoshinori Ishikawa

发明人： Takeyoshi Kataoka ,  Motoyuki Suzuki ,  Fumio Isshiki ,  Yoshinori Ishikawa

IPC分类号： G11B7/00

CPC分类号： G11B7/0901 ,  G11B7/0053 ,  G11B7/0912 ,  G11B2007/0013

摘要： There is provided an optical disc recording/reproduction device capable of accurately performing the focus offset and spherical aberration correction even for an optical disc having no data recorded. The optical disc recording/reproduction device includes: an optical pickup having a spherical aberration corrector for correcting the spherical aberration of an objective lens; and various control units; and can generate a tracking error signal (TE) at least by a push-pull signal by the push-pull method. When an optical disc mounted is in an unrecorded state, the spherical aberration correction amount and the objective lens focus offset amount are adjusted according to the push-pull signal, predetermined data is recorded on the optical disc, and the reproduction signal obtained by the data is used to adjust the spherical aberration correction amount in the spherical aberration corrector of the optical pickup and the focus offset amount of the objective lens.

摘要翻译： 提供了即使对于没有记录数据的光盘也能够精确地执行聚焦偏移和球面像差校正的光盘记录/再现装置。 光盘记录/再现装置包括：具有用于校正物镜的球面像差的球面像差校正器的光学拾取器; 和各种控制单元; 并且可以通过推挽方法至少通过推挽信号产生跟踪误差信号（TE）。 当安装的光盘处于未记录状态时，根据推挽信号调整球面像差校正量和物镜聚焦偏移量，将预定数据记录在光盘上，并且通过数据获得的再现信号 用于调整光学拾取器的球面像差校正器和物镜的聚焦偏移量的球面像差校正量。

公开(公告)号：US20140009961A1

公开(公告)日：2014-01-09

申请号：US14006458

申请日：2012-03-14

申请人： Yoshihiko Sakaguchi ,  Yuji Kawata ,  Motoyuki Suzuki

发明人： Yoshihiko Sakaguchi ,  Yuji Kawata ,  Motoyuki Suzuki

IPC分类号： F21V7/04 ,  F21V8/00

CPC分类号： G02B6/0055 ,  B29D11/00326 ,  F21V7/04 ,  G02B6/0031 ,  G02B6/0043 ,  G02B6/0065 ,  G02F1/1309 ,  G02F1/133615 ,  G02F2201/54 ,  G02F2203/02

摘要： A white reflective film for an edge light backlight improves the luminance and unevenness therein, avoids uneven close contact with, and scraping of, the light guide plate, and minimizes the crushing of convexes formed on at least one side, even in cases where the reflective film is laid directly over a corrugated chassis designed to house circuitry or the reflective film is used in combination with LEDs. The film satisfies (i) to (iii): (i) a stiffness of 2 to 10 mN·m; (ii) convexes have been formed on at least one face (A), and their maximum height is 5 to 60 μm; (iii) the convexes contain an aromatic polyester.

摘要翻译： 用于边缘光背光的白色反射膜改善了其中的亮度和不均匀性，避免了导光板的不均匀的紧密接触和刮擦，并且使形成在至少一面上的凸起的破碎最小化，即使在反射 胶片直接放置在设计用于容纳电路的波纹底盘上，或者反射膜与LED组合使用。 该膜满足（i）〜（iii）：（i）2〜10mN·m的刚度; （ii）在至少一个面（A）上形成凸起，其最大高度为5〜60μm; （iii）凸起含有芳族聚酯。

公开(公告)号：US08325576B2

公开(公告)日：2012-12-04

申请号：US12608108

申请日：2009-10-29

申请人： Koichiro Nishimura ,  Akio Fukushima ,  Motoyuki Suzuki

发明人： Koichiro Nishimura ,  Akio Fukushima ,  Motoyuki Suzuki

IPC分类号： G11B20/18

CPC分类号： G11B7/00736 ,  G11B19/128 ,  G11B20/1217 ,  G11B2020/1279 ,  G11B2220/235 ,  G11B2220/2541

摘要： A configuration for reading out disc management information easily without errors from a disc in which recording is conducted with data recording densities of a plurality of kinds. An optical disc includes a plurality of data recording areas in which information is recorded with data recording densities which are different from each other. Information of the data recording densities in the data recording areas is recorded in a management information recording area (a BCA area or a PIC area) by using a unique format which does not depend upon the data recording densities of the data recording areas. The divided data recording areas are disposed in the same plane of the disc, or disposed over a plurality of recording layers.

摘要翻译： 用于以多种数据记录密度进行记录的光盘容易地读出盘管理信息的配置。 光盘包括多个数据记录区域，其中以与数据记录密度不同的数据记录信息。 通过使用不依赖于数据记录区域的数据记录密度的唯一格式将数据记录区域中的数据记录密度的信息记录在管理信息记录区域（BCA区域或PIC区域）中。 划分的数据记录区域设置在盘的同一平面中，或者设置在多个记录层上。

公开(公告)号：USRE43018E1

公开(公告)日：2011-12-13

申请号：US13064302

申请日：2011-03-17

申请人： Mariko Umeda ,  Hiroyuki Minemura ,  Motoyuki Suzuki

发明人： Mariko Umeda ,  Hiroyuki Minemura ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/0903 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0953 ,  G11B7/1263 ,  G11B2007/0006 ,  G11B2007/0013

摘要： A tracking offset is reduced. The effect of an SPP signal fluctuation is reduced by using a variable mixing ratio DPP method, and a residual tracking offset is minimized.

摘要翻译： 跟踪偏移减少。 通过使用可变混合比DPP方法来降低SPP信号波动的影响，并且残留跟踪偏移被最小化。

公开(公告)号：US07995429B2

公开(公告)日：2011-08-09

申请号：US12629772

申请日：2009-12-02

申请人： Koji Iijima ,  Motoyuki Suzuki ,  Junji Nakajima

发明人： Koji Iijima ,  Motoyuki Suzuki ,  Junji Nakajima

IPC分类号： G11B7/00

CPC分类号： G11B7/0956 ,  G11B2007/0013

摘要： There are provided an optical disk device and tilt correction processing method for performing recording/reproduction by rapidly acquiring an optimal tilt correction value for an optical disk having a plurality of recording/reproducing layers. In an optical disk device capable of recording or reproducing information by irradiating a laser beam to each of a plurality of recording/reproducing layers of an optical disk, the tilt value is stepwise set within a predetermined range at a predetermined radius position of the recording/reproducing layer located at the farthest distance from the laser beam irradiation side so that an optimal tilt correction value can be obtained from the quadratic function by the method of least squares of the jitter or the like obtained from the disk. By applying the optimal tilt value obtained to the other recording/reproducing layer, it is possible to start recording or reproduction in a short time.

摘要翻译： 提供了一种用于通过快速获取具有多个记录/再现层的光盘的最佳倾斜校正值来执行记录/再现的光盘装置和倾斜校正处理方法。 在能够通过向光盘的多个记录/再现层中的每一个照射激光来记录或再现信息的光盘装置中，倾斜值被逐步设定在记录/再现层的预定半径位置的预定范围内， 再现层位于距离激光束照射侧最远的距离处，从而可以通过从盘获得的抖动等的最小平方的二次函数获得最佳倾斜校正值。 通过将获得的最佳倾斜值应用于其他记录/再现层，可以在短时间内开始记录或再现。