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11. 发明申请

US20040141426A1 Magneto-optical head and method of making coil for the same 审中-公开
标题翻译：磁光头及其制作方法
公开(公告)号：US20040141426A1
公开(公告)日：2004-07-22
申请号：US10617284
申请日：2003-07-10
申请人： Fujitsu Limited
发明人： Goro Kawasaki , Tsuyoshi Matsumoto , Kazushi Uno
IPC分类号： G11B011/00
CPC分类号： G11B11/10554 , G11B11/10534 , G11B11/1058
摘要： A magneto-optical head includes a slider, an objective lens, a coil and a transparent insulating layer. The coil is provided with upper and lower conductive patterns, wherein the lower pattern is brought closer to a storage medium than the upper pattern is. The lower pattern is made smaller in inner diameter than the upper pattern. The insulating layer fills the center of the coil.
摘要翻译：磁光头包括滑块，物镜，线圈和透明绝缘层。线圈设置有上下导电图案，其中下图案比上图案更靠近存储介质。下部图案的内径比上部图案小。绝缘层填充线圈的中心。

12. 发明申请

US20040105349A1 Method and apparatus for reproducing a data stream having multiple reproduction paths recorded on a recording medium 有权
标题翻译：用于再现具有记录在记录介质上的多个再现路径的数据流的方法和装置
公开(公告)号：US20040105349A1
公开(公告)日：2004-06-03
申请号：US10720284
申请日：2003-11-25
发明人： Kang Soo Seo , Byung Jin Kim , Soung Hyun Um
IPC分类号： G11B011/00
CPC分类号： H04N9/8042 , G11B7/08505 , G11B19/04 , G11B20/10527 , G11B27/105 , G11B27/329 , G11B2020/10814 , G11B2220/20 , G11B2220/2541 , H04N5/85 , H04N9/8205
摘要： The present invention relates to method and apparatus for reproducing a data stream having a multiple reproduction paths recorded on a high-density optical disk. The present method ensures seamless reproduction of video and audio data of a multi-path data stream by removing possible buffer underrun even when the reproduction path is changed during reproduction.
摘要翻译：本发明涉及用于再现具有记录在高密度光盘上的多个再现路径的数据流的方法和装置。本方法通过去除可能的缓冲器欠载甚至在再现期间改变再现路径时，确保多路径数据流的视频和音频数据的无缝再现。

13. 发明申请

US20040090875A1 Optical disk and method for producing the same 失效
标题翻译：光盘及其制造方法
公开(公告)号：US20040090875A1
公开(公告)日：2004-05-13
申请号：US10699937
申请日：2003-11-03
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO.
发明人： Kiyoshi Uchida , Yasumori Hino , Motoyoshi Murakami , Norio Miyatake
IPC分类号： G11B011/00
CPC分类号： G11B11/10582 , B32B3/02 , G11B11/10578 , G11B11/10584 , G11B11/10586 , Y10T428/31
摘要： An optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident from the substrate side. The optical disk further includes a first dielectric layer disposed between the substrate and the recording layer and a second dielectric layer disposed on the recording layer opposite to the substrate, wherein the recording layer is initialized with light having a wavelength null incident from the second dielectric layer side, and the thickness of the second dielectric layer is in a range of null/(12nulln) to null/(2nulln) (where n is a refractive index of the second dielectric layer).
摘要翻译：本发明的光盘包括基板和设置在基板上方的记录层，并且使用从基板侧入射的光由DWDD系统再现信息信号。光盘还包括设置在基板和记录层之间的第一介质层和设置在与基板相对的记录层上的第二介电层，其中记录层由具有从第二介电层入射的波长λ的光初始化并且第二电介质层的厚度在λ/（12xn）至λ/（2xn）（其中n是第二介电层的折射率）的范围内。

14. 发明申请

US20040081033A1 Multiple layer optical storage device 审中-公开
标题翻译：多层光存储设备
公开(公告)号：US20040081033A1
公开(公告)日：2004-04-29
申请号：US10467405
申请日：2003-12-11
发明人： Yoel Arieli , Shay Wolfling
IPC分类号： G11B011/00
CPC分类号： G11B7/13 , G11B7/08 , G11B7/24 , G11B7/24038 , G11B2007/0013
摘要： A multi-layer optical information storage system comprising several layers of generally flat waveguide, arranged one on top of the other in a stack. The reading energy is projected through the layers perpendicularly, and is focussed onto the layer to be read. A detector disposed at the side of the layers detects the energy scattered or reflected from information or data points within the layer. The points within the layers may be in the form of defects of a type that can carry the information assigned to each point, generally by means of the presence or absence of the defect. The energy scattered or reflected from the defects in any specific layer is preferably contained within that layer because of waveguiding properties imparted to the layers by means of a graded or stepped index structure.
摘要翻译：一种多层光学信息存储系统，包括多层平面波导，一层叠置在另一层之上。读取能量通过垂直的层被投影，并被聚焦到待读取的层上。设置在层的侧面的检测器检测从层内的信息或数据点散射或反射的能量。层内的点可以是可以携带分配给每个点的信息的类型的缺陷的形式，通常通过存在或不存在缺陷。由于通过分级或阶梯式折射率结构赋予层的波导特性，在任何特定层中的缺陷散射或反射的能量优选地包含在该层内。

15. 发明申请

US20040052165A1 Optical recording medium inspecting method and optical recording medium manufacturing method 审中-公开
标题翻译：光记录介质检查方法和光记录介质制造方法
公开(公告)号：US20040052165A1
公开(公告)日：2004-03-18
申请号：US10432859
申请日：2003-05-27
发明人： Isamu Kuribayashi , Masanori Shibahara , Hajime Utsunomiya , Toshiki Aoi
IPC分类号： G11B011/00
CPC分类号： G11B7/26 , G11B7/00 , G11B7/00375
摘要： It is an object of the present invention to provide an inspection method for judging whether or not a phase change type medium can be used as a write-once type medium. In the present invention, shortest signals are recorded in an optical recording medium having a phase change type recording layer so that the CNR of the shortest signal is equal to or higher than 45 dB, an area in which the shortest signal was recorded is irradiated with a constant-current laser beam whose power level cannot melt the recording layer at the same linear speed as that at which the shortest signal was recorded, and decrease in the carrier of the shortest signal is measured. When the decrease in the carrier of the shortest signal is equal to or lower than 20 dB, the optical recording medium is judged to be a write-once type medium.
摘要翻译：本发明的目的是提供一种用于判断相变型介质是否可以用作一次写入式介质的检查方法。在本发明中，最短信号被记录在具有相变型记录层的光记录介质中，使得最短信号的CNR等于或高于45dB，记录最短信号的区域被照射其功率电平不能以与记录最短信号相同的线速度熔化记录层并且测量最短信号的载波的减小的恒流激光束。当最短信号的载波的减小等于或低于20dB时，光记录介质被判断为一次写入式介质。

16. 发明申请

US20040027929A1 Optical head and coil assembly used for the same 失效
标题翻译：光头和线圈组件用于相同
公开(公告)号：US20040027929A1
公开(公告)日：2004-02-12
申请号：US10400263
申请日：2003-03-27
申请人： Fujitsu Limited
发明人： Tohru Fujimaki , Koji Matsumoto , Koichi Tezuka
IPC分类号： G11B011/00 , G11B007/135
CPC分类号： B82Y10/00 , G11B5/127 , G11B5/17 , G11B11/10534 , G11B11/10543 , G11B11/10554 , G11B11/1058 , Y10T29/4906
摘要： A coil assembly includes a coil arranged around a vertical axis, and a supporting member for carrying the coil. The supporting member is formed with a through hole corresponding to the vertical axis. The coil includes a plurality of coil elements which are connected in parallel.
摘要翻译：线圈组件包括围绕垂直轴布置的线圈和用于承载线圈的支撑构件。支撑构件形成有与垂直轴对应的通孔。线圈包括并联连接的多个线圈元件。

17. 发明申请

US20040001394A1 Apparatus and method for producing a small spot of optical energy 有权
公开(公告)号：US20040001394A1
公开(公告)日：2004-01-01
申请号：US10391729
申请日：2003-03-19
申请人： Seagate Technology LLC
发明人： William Albert Challener , Christophe Daniel Mihalcea , Tim Rausch
IPC分类号： G11B011/00 , G11B007/135
CPC分类号： G11B5/127 , G11B5/012 , G11B2005/0005 , G11B2005/0021
摘要： An apparatus for producing a small spot of optical energy comprises a planar waveguide shaped to direct a linearly polarized electromagnetic wave to a focal point within the waveguide, and a metallic pin positioned at the focal point whereby the linearly polarized electromagnetic wave creates surface plasmons on a surface of the pin. The apparatus can further comprise means for phase shifting a portion of the linearly polarized electromagnetic wave. Recording heads comprising a magnetic write pole, a planar waveguide positioned adjacent to the magnetic write pole, the planar waveguide being shaped to direct a linearly polarized electromagnetic wave to a focal point within the waveguide, and a metallic pin positioned at the focal point whereby the linearly polarized electromagnetic wave creates surface plasmons on a surface of the pin, and disc drives that use such recording heads are also disclosed.

18. 发明申请

US20040001393A1 Motor-kinetic identification apparatus and method 失效
标题翻译：动力识别装置及方法
公开(公告)号：US20040001393A1
公开(公告)日：2004-01-01
申请号：US10185452
申请日：2002-06-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： Valdimir R. Pisarsky , Mark B. Hoffberg
IPC分类号： G11B011/00
CPC分类号： F41A17/066 , F41A17/20 , G06K9/00 , G07C9/00158 , G07C2209/65
摘要： A motor-kinetic identification apparatus includes a pliant material, a source of a magnetic field embedded in the pliant material and a magneto metric element embedded in the material. The pliant is adapted to be gripped by a user. The pliant material has a normally biased rest shape and the shape becomes deformed upon the material being gripped. The magnetic field has a field contour dependent on said shape of said material. The magneto metric element is disposed within the field and has a detectable state commensurate with the magnetic field contour.
摘要翻译：电机动力学识别装置包括柔性材料，嵌入在柔性材料中的磁场源和嵌入在该材料中的磁公差元件。柔顺适合用户抓住。柔软的材料具有通常偏置的静止形状，并且形状在被夹持的材料上变形。磁场具有取决于所述材料的所述形状的场轮廓。磁公差元件设置在场内并且具有与磁场轮廓相当的可检测状态。

19. 发明申请

US20030210615A1 Method for recording plural rows of record marks in one track in a magneto-optical recording device 失效
公开(公告)号：US20030210615A1
公开(公告)日：2003-11-13
申请号：US10460803
申请日：2003-06-11
申请人： Fujitsu Limited
发明人： Akiyoshi Uchida , Masakazu Taguchi , Michio Matsuura
IPC分类号： G11B011/00
CPC分类号： G11B7/127 , G11B7/0045 , G11B7/14 , G11B7/24085 , G11B7/24088 , G11B11/10504 , G11B11/10515 , G11B11/10528 , G11B20/18
摘要： An optical disk recording method of recording data on an optical disk by applying laser light to a track of the optical disk, includes the steps of a) driving a plurality of laser light sources in sequence in a time division manner, and applying a light flux to one track of the optical disk successively, and b) producing a plurality of rows of record marks in the one track.

20. 发明申请

US20030202430A1 Domain wall displacement type magneto-optical recording medium and method of producing same 审中-公开
标题翻译：畴壁位移型磁光记录介质及其制造方法
公开(公告)号：US20030202430A1
公开(公告)日：2003-10-30
申请号：US10410351
申请日：2003-04-10
发明人： Koichiro Nishikawa
IPC分类号： G11B011/00
CPC分类号： G11B11/10584 , G11B11/10582
摘要： A domain wall displacement type magneto-optical recording medium is provided that can perform stable domain wall movement and prevent cross-write while adopting the land/groove recording to attain a narrow track pitch. The magneto-optical recording medium includes a magnetic layer of a stack structure formed of a domain wall displacement type reproducing layer, a switching layer and a record holding layer, wherein both a land and a groove are used as a recording/reproducing track, and wherein a side wall portion located between the land and the groove is irradiated with a light beam to be annealed.
摘要翻译：提供一种域壁位移型磁光记录介质，其可以在采用平台/凹槽记录时实现稳定的畴壁移动并防止交叉写入，以获得窄的轨道间距。磁光记录介质包括由畴壁位移型再现层，开关层和记录保持层形成的堆叠结构的磁性层，其中焊盘和凹槽都用作记录/再现轨道，以及其中位于所述焊盘和所述槽之间的侧壁部分被照射待退火的光束。

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