公开(公告)号：EP2293296A1

公开(公告)日：2011-03-09

申请号：EP10160900.6

申请日：2010-04-23

申请人： Hitachi Consumer Electronics Co., Ltd.

发明人： Ishikawa, Yoshinori

IPC分类号： G11B7/085

CPC分类号： G11B7/08505

摘要： An optical disc apparatus includes a multilayer optical disc (1, 201) having a reproduction-only recording layer (202) and a recording layer (203) of the recordable area, on the disc, to record and reproduce the disc by the same wavelength laser light, so that a seek operation is performed rapidly, and a generation method tracking error signal (TE) is switched over by using a DPD method and push-pull method in response to a target layer to which a focus jump is applied, for a time period during which a tracking servo loop is opened in association with a focus jump.

摘要翻译： 一种光盘装置，包括：在光盘上具有再现专用记录层（202）和可记录区域的记录层（203）的多层光盘（1,201），以相同的波长记录和再现光盘 激光，使得快速执行寻道操作，并且通过使用DPD方法和推挽方法来响应于应用了聚焦跳转的目标层来切换生成方法跟踪误差信号（TE），用于 与聚焦跳跃相关联地打开跟踪伺服环路的时间段。

公开(公告)号：EP1811501B1

公开(公告)日：2010-03-31

申请号：EP07008031.2

申请日：2002-10-31

申请人： YAMAHA CORPORATION

发明人： Morishima, Morito ,  Usui, Akira ,  Shiozaki, Yoshihiko

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B23/40

CPC分类号： G11B7/1263 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/00455 ,  G11B7/00736 ,  G11B7/08505 ,  G11B7/08582 ,  G11B7/0908 ,  G11B7/0945 ,  G11B7/24094 ,  G11B19/122 ,  G11B23/30 ,  G11B23/40

公开(公告)号：EP1966792A1

公开(公告)日：2008-09-10

申请号：EP06842425.8

申请日：2006-12-08

申请人： Koninklijke Philips Electronics N.V.

发明人： WISSE, Jacobus Anthonie ,  GEUSENS, Stefan

IPC分类号： G11B7/085 ,  G11B7/09

CPC分类号： G11B7/08505 ,  G11B7/0945

摘要： The present invention discloses a method for controlling the position of a radiation beam on an optical carrier (1), e.g. a CD, a DVD, a HD-DVD or a BD disc, in an optical drive. Initially, the optical pickup unit (OPU) is fixated relative to the optical carrier and there is established a closed-loop control - so-called capture - in response to an error signal e.g. radial or focus error tracking signal (FE, RE). Then, by servo control means (9, 50) a first bandwidth (BWl) is set in a stabilization period (SP), and subsequently a second bandwidth (B W2) of the servo control means is set. The second bandwidth (B W2) is lower than the first bandwidth (BWl). The invention applies bandwidth switching and thereby provides a more robust operation of the optical drive, as the first and second bandwidths may be separately optimised. Additionally, the power consumption of the optical pickup unit (OPU) may be reduced.

公开(公告)号：EP1203372B1

公开(公告)日：2008-07-30

申请号：EP01911366.1

申请日：2001-01-18

申请人： ROBERT BOSCH GMBH

发明人： ZIMMERMANN, Holger ,  BECKER, Volker ,  MAIER, Jens ,  BAAS, Dieter

IPC分类号： G11B7/085

CPC分类号： G11B7/08588 ,  G11B7/08505

摘要： The invention relates to a method for carrying out a track jump and to a playback device (10) for optical storage disks (15). The inventive method enables an accelerated track jump to take place while the storage disk (15) is not moving. In order for a read device (2) to jump a track between a current track and a predetermined track (30) of an optical storage disk (15) introduced into the playback device (10), a time is established depending on the tracks to be skipped and the read device (2) moves in the direction of the predetermined track (30) for this set period of time. When a track jump is requested, the read device (2) is moved in the direction of a run-in area (20) of the optical storage disk (15) until a starting position (25) is detected. The time required for the track jump from the starting position (25) to the predetermined track (30) is established from this predetermined track (30).

公开(公告)号：EP1926091A2

公开(公告)日：2008-05-28

申请号：EP08003802.9

申请日：2002-10-31

申请人： YAMAHA CORPORATION

发明人： Morishima, Morito ,  Usui, Akira ,  Shiozaki, Yoshihiko

IPC分类号： G11B7/0037 ,  G11B7/0045 ,  G11B23/40

CPC分类号： G11B7/1263 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/00455 ,  G11B7/00736 ,  G11B7/08505 ,  G11B7/08582 ,  G11B7/0908 ,  G11B7/0945 ,  G11B7/24094 ,  G11B19/122 ,  G11B23/30 ,  G11B23/40

摘要： An optical disk apparatus records information by irradiating a laser beam from a pickup onto an optical disk. A scanning section scans the laser beam relative to the optical disk. A recording control section controls the scanning section to effect recording of information. A drawing control section is provided for controlling the pickup and the scanning section to effect drawing of a visible image on the optical disk according to image information, such that the laser beam is changed between a first intensity incapable of acting on the optical disk and a second intensity capable of acting on the optical disk. A servo section periodically detects the laser beam reflected back from the optical disk when the laser beam has the first intensity, and servo-controls the irradiating of the laser beam during the drawing of the visible image based on the detection of the laser beam. The drawing control section controls the pickup for forcibly changing the laser beam to the first intensity from the second intensity when the second intensity is maintained over a predetermined period pursuant to the image information, thereby enabling the servo section to detect the laser beam having the first intensity for continuing the servo-control.

摘要翻译： 光盘装置通过将来自拾取器的激光束照射到光盘上来记录信息。 扫描部分相对于光盘扫描激光束。 记录控制部分控制扫描部分以实现信息的记录。 提供绘制控制部分，用于控制拾取器和扫描部分，以根据图像信息在光盘上实现可见图像的绘制，使得激光束在不能作用于光盘上的第一强度和 第二强度能够作用在光盘上。 当激光束具有第一强度时，伺服部分周期性地检测从光盘反射回来的激光束，并且在基于激光束的检测的可视图像的绘制期间伺服控制激光束的照射。 当根据图像信息维持第二强度超过预定时间时，绘图控制部分控制拾取器强制地将激光束从第二强度改变到第一强度，由此使伺服部分能够检测具有第一强度的激光束 用于继续进行伺服控制。

公开(公告)号：EP0840298B1

公开(公告)日：2008-05-28

申请号：EP97308592.1

申请日：1997-10-28

申请人： Sony Corporation

发明人： Aoki, Nobuyuki, c/o Intel. Prop. Dept.

IPC分类号： G11B7/085 ,  G11B21/08 ,  G11B5/55

CPC分类号： G11B7/08505 ,  G11B7/08529

公开(公告)号：EP1745474B1

公开(公告)日：2008-01-23

申请号：EP05733776.8

申请日：2005-04-28

申请人： Koninklijke Philips Electronics N.V.

发明人： HELWEGEN, Ivon, F. ,  VERBERNE, Henricus, R., M.

IPC分类号： G11B7/085

CPC分类号： G11B7/0857 ,  G11B7/08505

摘要： An optical disc drive scans selected tracks on a record carrier via a beam of radiation (24) from a head (22). The head is positioned on the track by a tracking system. The tracking system includes a main servo loop, constituted by a motor (40) for moving the head along a rail (46) transverse to the tracks, position means (41) for generating a position signal in dependence of an actual position of the head, and an amplifier (44) generating a driving signal coupled to the motor. The amplifier has an adjustable gain that is set in dependence on a friction profile. The device has a memory (34) for storing the friction profile as determined during a calibration process. By compensating friction of the rail a reliable response of the tracking system to jump commands is achieved. Power dissipation is reduced because the driving signal as generated is just strong enough to move the head along the rail.

公开(公告)号：EP1326240A4

公开(公告)日：2007-09-26

申请号：EP01974779

申请日：2001-10-11

申请人： OPTWARE CORP

发明人： HORIMAI HIDEYOSHI

IPC分类号： G11B7/09 ,  G03H1/04 ,  G03H1/16 ,  G03H1/26 ,  G03H1/30 ,  G11B7/0065 ,  G11B7/007 ,  G11B7/085 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  G11B7/24

CPC分类号： G11B7/24044 ,  G03H1/0402 ,  G03H1/0465 ,  G03H1/16 ,  G03H1/30 ,  G03H2001/0415 ,  G11B7/0065 ,  G11B7/007 ,  G11B7/00745 ,  G11B7/00781 ,  G11B7/08505 ,  G11B7/08594 ,  G11B7/0908 ,  G11B7/128 ,  G11B7/131 ,  G11B7/2405

摘要： A beam of light is spatially modulated according to the information to be recorded by a spatial light modulator (27) to generate an information light beam. The information light beam is focused by an objective (21) onto an optical information recording medium (1) in such a way that the diameter of the light beam is the smallest at the boundary between a transparent substrate (2) and a protective layer (5). A recording reference light beam is focused by an objective (31) onto the optical information recording medium (1) in such a way that the diameter of the light beam is the smallest at the boundary between the transparent substrate (2) and the protective layer (5). The interference pattern formed by the interference between the information light beam and the recording reference light beam is recorded in an information-recording layer (3) cubically. Thus a simple optical system for recording/reproducing information is structured without decreasing the amount of information.

公开(公告)号：EP1750261A2

公开(公告)日：2007-02-07

申请号：EP06014171.0

申请日：2006-07-07

申请人： Samsung Electronics Co., Ltd.

发明人： Bang, Kyu Chul ,  Kay, Hyon Sok

IPC分类号： G11B19/12 ,  G11B7/125 ,  G11B7/085

CPC分类号： G11B7/08505 ,  G11B19/122

摘要： A method of shortening a lead-in time for loading a disc having a reproduction-only area in an optical recording/reproducing apparatus includes finding and setting a signal value of a rewritable area of the disc to be loaded for recording/reproduction/erasing of the disc in a process adjustment operation, adjusting the signal value of the rewritable area on the basis of the set signal value thereof in an automatic mode, compensating a signal value of the reproduction-only area by a difference between the signal value of the rewritable area found in the process adjustment operation and a signal value of the reproduction-only area found in the process adjustment operation with reference to the adjusted signal value of the rewritable area to reset the signal value of the reproduction-only area, moving to the reproduction-only area after resetting the signal value of the reproduction-only area, and reading disc-related information.

摘要翻译： 一种缩短用于在光学记录/再现装置中装载具有仅再现区域的盘片的导入时间的方法包括：找到并设置待加载的盘的可重写区域的信号值以用于记录/再现/擦除 该盘在过程调整操作中，在自动模式下基于其设置的信号值来调整可重写区域的信号值，通过可重写信号的值之间的差来补偿仅再现区域的信号值 参考过程调整操作中发现的区域和参考在可重写区域的调整后的信号值在过程调整操作中发现的仅再现区域的信号值，以复位仅再现区域的信号值，移动到再现 - 仅复制仅再现区域的信号值之后的区域，以及读取盘相关信息。

公开(公告)号：EP1686572A3

公开(公告)日：2006-10-25

申请号：EP06010121.9

申请日：2002-10-31

申请人： YAMAHA CORPORATION

发明人： Morishima, Morito ,  Usui, Akira ,  Shiozaki, Yoshihiko

IPC分类号： G11B7/0037 ,  G11B23/40

CPC分类号： G11B7/1263 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/00455 ,  G11B7/00736 ,  G11B7/08505 ,  G11B7/08582 ,  G11B7/0908 ,  G11B7/0945 ,  G11B7/24094 ,  G11B19/122 ,  G11B23/30 ,  G11B23/40

摘要： An optical disk apparatus capable of drawing a visible image on an optical disk by irradiating a laser beam onto the optical disk, the apparatus comprising:
rotating means for rotating the optical disk;
detecting means for detecting a rotating state of the optical disk;
an optical pickup arranged to irradiate the laser beam onto the optical disk which is rotated by the rotating means, so that the visible image is drawn on the optical disk;
feeding means for feeding the optical pickup in a radial direction of the optical disk; and
tracking control means for controlling an irradiating position of the laser beam relative to the optical disk,
wherein the tracking control means fixes the irradiating position of the laser beam in the radial direction of the optical disk during the course of one rotation of the optical disk, and shifts the irradiating position of the laser beam by a first distance in the radial direction each time the detecting means detects one rotation of the optical disk, and
wherein the feeding means feeds the optical pickup in the radial direction by a second distance when the detecting means detects that the optical disk has rotated a predetermined number of rotations.

摘要翻译： 1，一种光盘装置，其特征在于：通过对光盘照射激光，在光盘上描绘可视图像，其特征在于，包括：使上述光盘旋转的旋转装置; 检测装置，用于检测光盘的旋转状态; 一个光学拾取器，用于将激光束照射到由旋转装置旋转的光盘上，以便在光盘上绘制可见图像; 馈送装置，用于沿光盘的径向馈送光学拾取器; 以及跟踪控制装置，用于控制激光束相对于光盘的照射位置，其中跟踪控制装置在光盘的一次旋转过程中将激光束的照射位置固定在光盘的径向上 ，并且每当检测装置检测到光盘的一次旋转时，激光束的照射位置沿径向方向移动第一距离，并且其中，当所述检测装置检测到所述光盘的一次旋转时，所述进给装置沿所述径向方向将所述光学拾取器进给第二距离 检测装置检测到光盘已经旋转了预定的转数。