公开(公告)号：US09263081B2

公开(公告)日：2016-02-16

申请号：US14697922

申请日：2015-04-28

申请人： ALPINE ELECTRONICS, INC.

发明人： Mitsunori Wada ,  Katsunari Ashimine ,  Yasunobu Inaba

IPC分类号： G11B20/10 ,  G11B7/1374 ,  G11B7/085 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0935 ,  G11B7/08582 ,  G11B7/0932 ,  G11B7/0956 ,  G11B7/22

摘要： An optical pickup device is one in which a lens holder is held by a movable base by using a resilient wire. A restricting abutting portion is formed at a lower portion of the lens holder. When the lens holder moves excessively downward, the restricting abutting portion comes into contact with a stopper portion to restrict a downward movement of the lens holder, so that it is possible to prevent the lens holder from contacting a unit chassis. When the unit chassis is not mounted on the movable base, it is possible to prevent excessive flexing of the resilient wire caused when an opposing abutting portion of the lens holder comes into contact with the unit chassis.

摘要翻译： 光学拾取装置是通过使用弹性线将透镜保持件保持在可动基座上的光拾取装置。 在透镜保持器的下部形成限制抵接部。 当透镜保持器向下移动时，限制抵接部分与止挡部分接触以限制透镜保持器的向下运动，使得可以防止透镜保持器与单元底盘接触。 当单元底盘未安装在可动基座上时，可以防止当镜片保持器的相对的邻接部分与单元底盘接触时引起的弹性丝的过度弯曲。

公开(公告)号：US09218840B2

公开(公告)日：2015-12-22

申请号：US13925892

申请日：2013-06-25

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Johannes Antonius van Rooij ,  Myriam Sabine Josee Splets

IPC分类号： G11B7/00 ,  G11B7/12 ,  G11B7/085 ,  G11B7/095 ,  G11B19/20 ,  G11B33/14

CPC分类号： G11B7/121 ,  G11B7/08582 ,  G11B7/0956 ,  G11B33/14

摘要： An optical disc recording and/or reproducing device comprising a drive for rotating an optical disc around an axis of rotation, a movable optical pickup unit (5) and a frame (1) having at least one guiding rod (4) for guiding a displacement of the optical pickup unit (5) in a substantially radial direction with respect to the axis of rotation. The guiding rod (4) is provided with a protrusion (17) for restricting the movement of the optical pickup unit (5) when the guiding rod (4) is in a predetermined rotational position. The guiding rod (4) is rotationally drivable by an electric drive motor in order to move the protrusion (17) for either releasing or blocking the optical pickup unit (5).

摘要翻译： 一种光盘记录和/或再现装置，包括用于围绕旋转轴线旋转光盘的驱动器，可移动光学拾取单元（5）和具有至少一个引导杆（4）的框架（1），用于引导位移 的光学拾取单元（5）在相对于旋转轴线的大致径向方向上。 引导杆（4）设置有用于在导杆（4）处于预定旋转位置时限制光学拾取单元（5）的移动的突起（17）。 引导杆（4）可由电动马达旋转驱动，以移动突起（17）以释放或阻挡光学拾取单元（5）。

公开(公告)号：US09196286B2

公开(公告)日：2015-11-24

申请号：US14403248

申请日：2013-05-30

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Kanji Wakabayashi ,  Kousei Sano ,  Yoshiaki Komma

IPC分类号： G11B7/09 ,  G11B7/007 ,  G11B7/095 ,  G11B7/1353 ,  G11B20/10 ,  G11B7/1381

CPC分类号： G11B7/00718 ,  G11B7/005 ,  G11B7/0901 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0956 ,  G11B7/1353 ,  G11B7/1381 ,  G11B20/10027 ,  G11B20/10212 ,  G11B2007/00709

摘要： An optical disk information device includes a laser light source that emits a luminous flux with a wavelength λ, an objective lens having a numerical aperture NA, a splitting element, a photodetector, a central portion amplifier, at least two end portion amplifiers, an adder, a control signal processing section having a tracking switcher that inverts a polarity of a tracking control signal depending on whether a track scanned by a condensing spot corresponds to a land portion or a groove portion, and a gain controller that, when the polarity of the tracking control signal is inverted, switches gains of the central portion amplifier and the end portion amplifiers and sets the gain of the central portion amplifier substantially lower than the gain of at least one of the end portion amplifiers so as to reduce crosstalk from adjacent tracks in the optical disk.

摘要翻译： 光盘信息装置包括发射波长为λ的光束的激光源，具有数值孔径NA的物镜，分割元件，光电检测器，中央部分放大器，至少两个端部放大器，加法器 控制信号处理部分，具有跟踪切换器，其根据由聚光点扫描的光道是否对应于岸台部分或凹槽部分，反转跟踪控制信号的极性;以及增益控制器，当所述跟踪控制信号的极性 跟踪控制信号反转，切换中央部分放大器和端部放大器的增益，并设置中央部分放大器的增益，基本上比端部放大器中的至少一个放大器的增益低，以便减少相邻轨道的串扰 光盘。

公开(公告)号：US20150146511A1

公开(公告)日：2015-05-28

申请号：US14533192

申请日：2014-11-05

申请人： Hitachi-LG Data Storage, Inc.

发明人： Kouji FUJITA

IPC分类号： G11B7/08 ,  G11B7/007 ,  G11B7/1353

CPC分类号： G11B7/082 ,  G11B7/00772 ,  G11B7/083 ,  G11B7/08564 ,  G11B7/0956 ,  G11B7/1353

摘要： In an optical information recording/reproducing device that radiates signal light and reference light to a recording medium, forms a hologram, and records information and emits the reference light to the hologram of the recording medium and reproduces information, a laser light source that generates the signal light and the reference light; a light angle control unit that controls an angle of the reference light incident on the recording medium; a light detecting unit that detects diffracted light when the reference light is radiated; a positioning unit that allocates an address to the recording medium and performs positioning of the recording medium for the address; a tilt measuring unit that measures a tilt of the recording medium; and a control unit that controls the incidence angle of the reference light, on the basis of a tilt measurement result in a recording mode, in a reproduction mode, are included.

摘要翻译： 在将信号光和参考光照射到记录介质的光学信息记录/再现装置中，形成全息图，并记录信息并将参考光发射到记录介质的全息图并再现信息;激光源， 信号灯和参考灯; 光角控制单元，其控制入射在记录介质上的参考光的角度; 光检测单元，其在参考光被照射时检测衍射光; 定位单元，其向所述记录介质分配地址并执行所述地址的记录介质的定位; 倾斜测量单元，其测量记录介质的倾斜度; 并且包括在再现模式中基于记录模式的倾斜测量结果来控制参考光的入射角的控制单元。

公开(公告)号：US09019805B2

公开(公告)日：2015-04-28

申请号：US13798747

申请日：2013-03-13

申请人： Kabushiki Kaisha Toshiba

发明人： Masahiro Saito

IPC分类号： G11B7/00 ,  G11B7/24 ,  G11B7/095 ,  G11B7/24038 ,  G11B7/007

CPC分类号： G11B7/0956 ,  G11B7/00736 ,  G11B7/24038 ,  G11B2007/0013

摘要： According to one embodiment, a multilayer optical recording medium including a substrate, a guide layer group that is provided on the substrate and has guide layers in which positional information in a radial direction is recorded, and a recording layer group that is provided on the substrate and has recording layers in which information can be recorded. In the recording layer group, positional information of the recording layers associated with the positional information recorded in the guide layers and control information of the optical device where reflected light volumes of the laser beams on the guide layers and the recording layers become maximum at the positions in the radial direction are recorded at the positions in the radial direction of the recording layers.

摘要翻译： 根据一个实施例，一种多层光学记录介质，包括基板，设置在基板上并具有记录有径向位置信息的引导层的引导层组以及设置在基板上的记录层组 并且具有能够记录信息的记录层。 在记录层组中，与记录在引导层中的位置信息相关联的记录层的位置信息和在引导层和记录层上的激光束的反射光体积在位置处的位置变得最大的光学装置的控制信息 在记录层的径向位置上记录径向。

公开(公告)号：US08619521B2

公开(公告)日：2013-12-31

申请号：US13352099

申请日：2012-01-17

申请人： Yuichi Suzuki

发明人： Yuichi Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/08517 ,  G11B7/00452 ,  G11B7/0956 ,  G11B7/2405 ,  G11B2007/0009 ,  G11B2007/0013

摘要： A disc drive includes an optical pickup that emits laser light to a predetermined layer position via an objective lens and detects reflection light of the laser light, a tracking mechanism that drives the objective lens in a tracking direction, a tracking error signal generation unit that generates a tracking error signal, based on a light detecting signal for the reflection light obtained by the optical pickup, a tracking servo control unit that performs a tracking servo control based on the tracking error signal, and a control unit that makes the tracking servo control unit perform tracking servo pull-in on the basis of a frequency measurement result of the tracking error signal and a recording or non-recording determination result based on the light detecting signal.

摘要翻译： 磁盘驱动器包括通过物镜将激光发射到预定层位置并检测激光的反射光的跟踪机构，跟踪方向驱动物镜的跟踪机构，跟踪误差信号产生单元， 基于由光学拾取器获得的反射光的光检测信号的跟踪误差信号，基于跟踪误差信号执行跟踪伺服控制的跟踪伺服控制单元，以及使跟踪伺服控制单元 基于跟踪误差信号的频率测量结果和基于光检测信号的记录或非记录确定结果执行跟踪伺服拉入。

公开(公告)号：US08599660B2

公开(公告)日：2013-12-03

申请号：US13626594

申请日：2012-09-25

申请人： Shunichi Morimoto ,  Shingo Matsuzaki

发明人： Shunichi Morimoto ,  Shingo Matsuzaki

IPC分类号： G11B7/00

CPC分类号： G11B7/0933 ,  G11B7/0935 ,  G11B7/0956

摘要： Provided are an objective lens driving device capable of strengthening the effective magnetic fluxes of the magnets while preventing increases in size and costs of the device; and an optical pickup apparatus including the same. The objective lens driving device of the invention includes an actuator frame for movably supporting an OBL holder. Four tracking coils are attached to sidewalls of the OBL holder, and four magnets are attached to the back yokes of the actuator frame to be opposed to the tracking coils, respectively. In addition, two of the tracking coils are placed tilting to one of the sidewalls of the OBL holder.

摘要翻译： 提供一种能够在防止装置的尺寸和成本增加的同时加强磁体的有效磁通量的物镜驱动装置; 以及包括该拾取装置的光学拾取装置。 本发明的物镜驱动装置包括用于可移动地支撑OBL保持器的致动器框架。 四个跟踪线圈附接到OBL保持器的侧壁，并且四个磁体分别附接到致动器框架的后轭以与跟踪线圈相对。 另外，两个跟踪线圈倾斜到OBL支架的一个侧壁上。

公开(公告)号：US20130290991A1

公开(公告)日：2013-10-31

申请号：US13925892

申请日：2013-06-25

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Johannes Antonius van Rooij ,  Myriam Sabine Josee SPLETS

IPC分类号： G11B7/12

CPC分类号： G11B7/121 ,  G11B7/08582 ,  G11B7/0956 ,  G11B33/14

摘要： An optical disc recording and/or reproducing device comprising a drive for rotating an optical disc around an axis of rotation, a movable optical pickup unit (5) and a frame (1) having at least one guiding rod (4) for guiding a displacement of the optical pickup unit (5) in a substantially radial direction with respect to the axis of rotation . The guiding rod (4) is provided with a protrusion (17) for restricting the movement of the optical pickup unit (5) when the guiding rod (4) is in a predetermined rotational position. The guiding rod (4) is rotationally drivable by an electric drive motor in order to move the protrusion (17) for either releasing or blocking the optical pickup unit (5).

摘要翻译： 一种光盘记录和/或再现装置，包括用于围绕旋转轴线旋转光盘的驱动器，可移动光学拾取单元（5）和具有至少一个引导杆（4）的框架（1），用于引导位移 的光学拾取单元（5）在相对于旋转轴线的大致径向方向上。 引导杆（4）设置有用于在导杆（4）处于预定旋转位置时限制光学拾取单元（5）的移动的突起（17）。 引导杆（4）可由电动马达旋转驱动，以移动突起（17）以释放或阻挡光学拾取单元（5）。

公开(公告)号：US08547806B2

公开(公告)日：2013-10-01

申请号：US12989297

申请日：2009-01-26

申请人： Yoshihiro Kiyose ,  Tomo Kishigami

发明人： Yoshihiro Kiyose ,  Tomo Kishigami

IPC分类号： G11B7/085

CPC分类号： G11B7/0956

摘要： A recorded area is reproduced during a suspension of a recording operation; when degradation of the recorded signal is detected (S4, S5) by the signal quality detection means (16), a tilt adjustment is performed in the recorded area, the signal quality of the recorded signal is detected after the tilt adjustment (S6), and if it is still degraded, a recording parameter is altered (step S7). The need to obtain tilt adjustment values for tilt corrections at a plurality of radial positions in advance is eliminated, resulting in reduced apparatus overhead and better recording quality.

摘要翻译： 在记录操作暂停期间再现记录区域; 当由信号质量检测装置（16）检测到记录信号的劣化（S4，S5）时，在记录区域中执行倾斜调整，在倾斜调整之后检测记录信号的信号质量（S6） 如果仍然劣化，则改变记录参数（步骤S7）。 预先获得在多个径向位置处获得用于倾斜校正的倾斜调整值的需要，从而减少了设备开销和更好的记录质量。

公开(公告)号：US08531928B2

公开(公告)日：2013-09-10

申请号：US12429194

申请日：2009-04-24

申请人： Yao-Wen Liu

发明人： Yao-Wen Liu

IPC分类号： G11B7/00

CPC分类号： G11B7/0941 ,  G11B7/0953 ,  G11B7/0956

摘要： An optical storage apparatus and a method for automatically adjusting a loop gain thereof are provided. The method includes the following steps. Firstly, a compact disk is written by an erase power. Next, a writing state of the erase power is detected to generate an error signal. Finally, a loop gain of a servo control loop is corrected according to the error signal. Therefore, the loop gain can be corrected by the present invention according to a reflectance of the compact disk.

摘要翻译： 提供了一种用于自动调节其环路增益的光学存储装置和方法。 该方法包括以下步骤。 首先，通过擦除功率写入光盘。 接下来，检测擦除功率的写入状态以产生误差信号。 最后，根据误差信号校正伺服控制环路的环路增益。 因此，通过本发明可以根据光盘的反射率校正环路增益。