公开(公告)号：USRE38886E1

公开(公告)日：2005-11-22

申请号：US09760896

申请日：2001-01-17

申请人： Joo-youp Kim

发明人： Joo-youp Kim

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  G11B7/20

CPC分类号： G11B7/127 ,  G11B7/123 ,  G11B7/126 ,  G11B7/1353 ,  G11B7/1365

摘要： An optical pick-up apparatus comprising an optical modular device having two light sources for emitting light beams of different power levels, a photo-refractive crystal device disposed on the optical modular device and a recording medium for coupling the powers of the light beams emitted from the two light sources, and an objective lens disposed on the optical path between the photo-refractive crystal device and the recording medium for focusing the light beam emitted from the light sources on the recording medium. The optical modular device is comprised of a substrate, a mount installed on the substrate, first and second light sources installed on opposing sides of the mount, a photo-detector installed on the mount for receiving a light beam which is reflected from a recording medium, a housing having an opening in the upper portion thereof and incorporated on the upper surface of the substrate, an optical path changing unit installed at the opening of the housing for changing the path of an incident light beam.

摘要翻译： 一种光学拾取装置，包括具有用于发射不同功率水平的光束的两个光源的光学模块化装置，设置在光学模块化装置上的光折射晶体装置和用于耦合从光学模块装置发射的光束的功率的记录介质 两个光源，以及设置在光折射晶体装置和记录介质之间的光路上的物镜，用于将从光源发射的光束聚焦在记录介质上。 光学模块化装置包括基板，安装在基板上的安装座，安装在安装座的相对侧上的第一和第二光源，安装在安装件上的光电检测器，用于接收从记录介质反射的光束 ，在其上部具有开口并且结合在基板的上表面上的壳体，安装在壳体的开口处的光路改变单元，用于改变入射光束的路径。

公开(公告)号：US20050013223A1

公开(公告)日：2005-01-20

申请号：US10875793

申请日：2004-06-25

申请人： Kyung-geun Lee

发明人： Kyung-geun Lee

IPC分类号： G11B7/007 ,  G11B7/125 ,  G11B7/24 ,  G11B5/09 ,  G11B7/20

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

摘要： An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, or partially overlap each other and lock out use of the overlapped portion. Therefore, when an OPC area of one information storage layer performs OPC, this OPC does not affect another information storage layer.

公开(公告)号：US6031809A

公开(公告)日：2000-02-29

申请号：US986181

申请日：1997-12-05

申请人： Akitomo Ohba

发明人： Akitomo Ohba

IPC分类号： G11B7/135 ,  G02F1/03 ,  G11B7/00 ,  G11B7/125 ,  G11B7/20

CPC分类号： G11B7/139 ,  G02F1/0316 ,  G11B7/1369 ,  G11B7/1381 ,  G11B2007/0006 ,  G11B2007/13727

摘要： The optical head has a light source, a collimating lens, an aperture-limiting element and an objective lens in the mentioned order in the direction of progress of light emitted from the light source, and a photo-detecting system for detecting return light having been transmitted through the objective lens and reflected by an optical disk. The aperture-limiting element includes a plurality of stripe transparent electrodes spaced apart at a predetermined interval on an electro-optical crystal substrate, and a substantially circular non-electrode area lacking the stripe transparent electrodes at a center portion of the substrate. The aperture-limiting element can be constructed with a reduced number of components as compared with the prior art construction.

摘要翻译： 光头具有从光源发出的光的进行方向上的上述顺序的光源，准直透镜，孔径限制元件和物镜，以及用于检测回光的光检测系统 通过物镜透射并被光盘反射。 孔径限制元件包括在电光晶体基板上以预定间隔隔开的多个条状透明电极和在基板的中心部分处缺少条形透明电极的大致圆形非电极区域。 与现有技术的结构相比，孔径限制元件可以构造成具有减少数量的部件。

公开(公告)号：US5706269A

公开(公告)日：1998-01-06

申请号：US824270

申请日：1997-03-26

申请人： Yasuhiro Ogura ,  Ayataka Nishio

发明人： Yasuhiro Ogura ,  Ayataka Nishio

IPC分类号： G11B20/12 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/20 ,  G11B19/12 ,  G11B19/26 ,  G11B20/10 ,  G11B23/00 ,  G11B23/36 ,  G11B7/24

CPC分类号： G11B20/10527 ,  G11B19/12 ,  G11B19/26 ,  G11B7/013 ,  G11B7/24 ,  G11B23/0021 ,  G11B23/36 ,  G11B7/0045 ,  G11B7/005

摘要： A recording medium which realizes high sound quality and is playable on a conventional playback device has a recording layer provided with a double-layered structure having at least a first layer L1 and a second layer L2, an audio data program is recorded on the first layer in the first data format, which is the conventional format, and the audio data program is recorded on the second layer in a second, new data format. The audio data programs recorded on the first layer and on the second layer are the same program and can be produced using 1-bit .DELTA..SIGMA. modulation having a high sampling rate as the new format, the .DELTA..SIGMA. modulated signal being passed through successive decimation filters to form the lower sampling rate signal of the conventional format. The double-layered disk can be played back using a disk judging unit that detects the disk's table of contents and controls a laser beam focus of a pick up, an operating clock frequency, and the decoder for reading out the data recorded in pits formed on the disk.

摘要翻译： 实现高音质并且可以在常规播放装置上播放的记录介质具有设置有至少具有第一层L1和第二层L2的双层结构的记录层，音频数据程序被记录在第一层 在作为传统格式的第一数据格式中，音频数据程序以第二种新的数据格式记录在第二层上。 记录在第一层和第二层上的音频数据程序是相同的程序，并且可以使用具有高采样率的1比特DELTA SIGMA调制作为新格式，DELTA SIGMA调制信号通过连续的抽取滤波器 以形成常规格式的较低采样率信号。 可以使用检测盘的目录并控制拾取的激光束聚焦，操作时钟频率和解码器的盘判断单元来回放双层盘，以读出记录在 磁盘。

公开(公告)号：US5347506A

公开(公告)日：1994-09-13

申请号：US968529

申请日：1992-10-29

申请人： Yasunori Matsudo ,  Hisashi Naka

发明人： Yasunori Matsudo ,  Hisashi Naka

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/14 ,  G11B7/20 ,  G11B11/18 ,  G11B19/28 ,  G11B20/10 ,  G11B21/08

CPC分类号： G11B20/10 ,  G11B7/005 ,  G11B7/14

摘要： An optical disk player for simultaneously reading data recorded on different areas of the optical disk is disclosed. The optical disk player provides a plurality of pairs of optical pick-ups and pick-up positioning mechanisms. A rotational speed of the optical disk is controlled according to a synchronization signal obtained from a first pick-up and the first pick-up can read the recorded data by a normal method, however, other pick-ups need to change read rates according to respective linear velocity. Therefore, reading speed changing circuits are provided for each of the optical pick-ups except a first pick-up and they change read rates according to linear velocities of the optical disk at reading positions.

摘要翻译： 公开了一种用于同时读取记录在光盘的不同区域上的数据的光盘播放器。 光盘播放器提供多对光学拾取和拾取定位机构。 根据从第一拾取器获得的同步信号控制光盘的旋转速度，并且第一拾取器可以通过常规方法读取记录的数据，然而，其他拾取器需要根据 各自的线速度。 因此，除了第一拾取器之外，为每个光学拾取器提供读取速度改变电路，并且它们根据读取位置处的光盘的线速度改变读取速率。

公开(公告)号：US5210738A

公开(公告)日：1993-05-11

申请号：US683914

申请日：1991-04-11

申请人： Hiroki Iwata ,  Yutaka Murakami

发明人： Hiroki Iwata ,  Yutaka Murakami

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/007 ,  G11B7/20 ,  G11B7/24

CPC分类号： G11B7/24082 ,  Y10S428/913 ,  Y10S430/146

摘要： An optical information recording medium, such as an optical disk, includes a meandering guide groove being varied in period according to first additional information and in amplitude according to second additional information. The optical information recording medium enables recording a plurality of kinds of information in addition to the first and second additional information in accordance with a multiple recording system.

摘要翻译： 诸如光盘的光学信息记录介质包括根据第一附加信息和根据第二附加信息的幅度在周期中变化的曲折引导槽。 光信息记录介质可以根据多重记录系统除了第一和第二附加信息之外还能记录多种信息。

公开(公告)号：US4868820A

公开(公告)日：1989-09-19

申请号：US170130

申请日：1988-03-14

申请人： Michiyoshi Nagashima ,  Isao Satoh

发明人： Michiyoshi Nagashima ,  Isao Satoh

IPC分类号： G11B7/135 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/09 ,  G11B7/14 ,  G11B7/20 ,  G11B7/24

CPC分类号： G11B7/24 ,  G11B7/0055 ,  G11B7/00557 ,  G11B7/09 ,  G11B7/0901 ,  G11B7/14 ,  G11B7/24076

摘要： An optical disk and a method of recording, reproducing or erasing information on the disk by using laser beams. The optical disk is provided thereon with grooves each having a V-shaped groove in the radial direction. At least two laser beams are focused on two adjoining slants of each V-shaped groove so that these two slants are used concurrently for high-density recording reproducing or erasing of high-quality information.

摘要翻译： 一种光盘和通过使用激光束在盘上记录，再现或擦除信息的方法。 光盘在其上设置有在径向方向上具有V形槽的凹槽。 至少两个激光束聚焦在每个V形槽的两个邻接的斜面上，使得这两个斜面同时用于高密度记录再现或擦除高质量信息。

公开(公告)号：US4577302A

公开(公告)日：1986-03-18

申请号：US475026

申请日：1983-03-14

申请人： Ioan R. Allen

发明人： Ioan R. Allen

IPC分类号： G03B31/00 ,  G03B31/02 ,  G11B7/003 ,  G11B7/007 ,  G11B7/085 ,  G11B15/60 ,  G11B33/10 ,  G11B7/20

CPC分类号： G11B7/007 ,  G11B15/602 ,  G11B33/10 ,  G11B7/0032 ,  G11B7/085

摘要： Apparatus for reproducing motion picture photographic (optical) sound-tracks is disclosed in which significant information regarding track placement, slit illumination, azimuth and impulse noise is derived by dynamically processing and comparing the signals obtained by reading each half of a bilateral sound-track. In a further embodiment a pair of detector elements monitors the septum between two tracks in order to detect lateral film misalignment.

摘要翻译： 公开了用于再现电影摄影（光学）声轨的装置，其中通过动态地处理和比较通过读取双边声轨的每一半而获得的信号，导出关于轨道放置，狭缝照明，方位角和脉冲噪声的重要信息。 在另一实施例中，一对检测器元件监测两个轨道之间的隔膜，以便检测侧向膜偏移。

公开(公告)号：US4001493A

公开(公告)日：1977-01-04

申请号：US502558

申请日：1974-09-03

申请人： Donald R. Cone

发明人： Donald R. Cone

IPC分类号： H01J37/30 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/20 ,  G11B9/10 ,  G11B23/00 ,  H04N5/76

CPC分类号： G11B7/261 ,  G11B23/0057 ,  G11B9/10

摘要： A wideband beam exposure recording system including a recording beam directed along a path. An object mask having spaced apertures formed therein is positioned in the path of the beam to provide spaced and shaped beams along said path. Means is provided for selectively and independently controlling each of said beams as a function of the information to be recorded. A conductive plate lens having a single aperture formed therein is spaced from the object mask and the entrance of the aperture formed in said plate lens is positioned in the path of the spaced beams. A movable target, beam-sensitive surface is positioned adjacent the exit of the lens and voltage means is applied between the lens and the target for imaging the beams on the target in spaced relationship. The article provided by the recording system and method is also disclosed.

公开(公告)号：US09005699B2

公开(公告)日：2015-04-14

申请号：US11862410

申请日：2007-09-27

申请人： Yoshiaki Sonobe ,  Teiichiro Umezawa ,  Koichi Wago

发明人： Yoshiaki Sonobe ,  Teiichiro Umezawa ,  Koichi Wago

IPC分类号： B05D5/12 ,  G11B5/66 ,  G11B5/84 ,  G11B5/74 ,  G11B23/00 ,  G11B7/20

CPC分类号： G11B5/66 ,  G11B5/84

摘要： A method for manufacturing a magnetic recording medium includes the steps of (a) forming a perpendicular magnetic recording layer and (b) applying an ion beam to regions between tracks of the perpendicular magnetic recording layer so as to form separation regions for magnetically separating the tracks from each other. In the step (a), a continuous film layer composed of a multilayer film is formed, and CoB layers and Pd layers are laminated in the multilayer film. In the step (b), the CoB layers and the Pd layers are melted by the ion beam so as to form an alloy of metals contained in the CoB layers and the Pd layers to thereby form the separation regions.

摘要翻译： 一种制造磁记录介质的方法包括以下步骤：（a）形成垂直磁记录层，和（b）将离子束施加到垂直磁记录层的轨道之间的区域，以便形成用于磁分离轨道的分离区域 从彼此。 在步骤（a）中，形成由多层膜构成的连续膜层，并且在多层膜中层叠CoB层和Pd层。 在步骤（b）中，CoB层和Pd层通过离子束熔化，以形成CoB层和Pd层中所含的金属的合金，从而形成分离区域。