专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

SG143083A1 METHOD FOR RECORDING ERASE PATTERN INFORMATION ON AN OPTICAL RECORDING MEDIUM 未知
公开(公告)号：SG143083A1
公开(公告)日：2008-06-27
申请号：SG2006079867
申请日：2002-09-04
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LEE KYUNG-GEUN , AHN YONG-JIN , PARK IN-SIK , KIM SEONG-SUE , YOON DU-SEOP
IPC分类号： G11B7/24 , G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/007 , G11B7/125 , G11B20/10 , G11B011/00
摘要： METHOD FOR RECORDING ERASE PATTERN INFORMATION ON AN OPTICAL RECORDING MEDIUM An optical recording medium storing information about powers of an erase pulse is provided. The optical recording medium allows data to be recorded on, erased from, and reproduced from. In the optical recording medium, erase pattern information including information about power levels of start and last pulses of an erase pattern for erasing data is recorded. The start and last pulses of the erase pattern that can be differently set depending on kinds of recording layers of disks, kinds of disks, or each layer of a multi- layered recording layer are recorded in a reproducible only area of the optical recording medium. Thus, the time required for selecting an optimal erase power for the optical recording medium in which the recording apparatus is inserted can be considerably reduced.

2. 发明申请

US20040257920A1 Magneto-optical recording medium 审中-公开
标题翻译：磁光记录介质
公开(公告)号：US20040257920A1
公开(公告)日：2004-12-23
申请号：US10874342
申请日：2004-06-24
申请人： TOSOH CORPORATION
发明人： Koyata Takahashi , Toshio Inase , Keiichiro Nishizawa
IPC分类号： G11B011/00
CPC分类号： G11B11/10584
摘要： Disclosed are magneto-optical recording media comprising at least a reflection layer, a recording layer and a dielectric layer laminated on a substrate in this order, wherein the thickness of the dielectric layer is not less than 140 nm or wherein the dielectric layer is provided by the lamination of upper dielectric layer and lower dielectric layer in which the thermal conductivity of the upper dielectric layer is higher than that of the lower dielectric layer. By arranging the thickness of the dielectric layer in a specific range, the surface roughness of a media in not more than 1.5 nm, and providing a reflection layer composed of a noble metal alloy, achieved is a magneto-optical recording medium able to record constantly in near-field magneto-optical recording, suitable for narrow track pitch, and having excellent SNR, resolution, and recording sensitivity.
摘要翻译：公开了磁光记录介质，其至少包括层叠在基板上的反射层，记录层和电介质层，其中电介质层的厚度不小于140nm，或者其中介电层由上介电层和下电介质层的叠层，其中上电介质层的导热率高于下电介质层的导热率。通过将电介质层的厚度设定在特定范围内，介质的表面粗糙度不大于1.5nm，并且提供由贵金属合金构成的反射层，是能够恒定记录的磁光记录介质在近场磁光记录中，适用于窄轨道间距，并且具有优异的SNR，分辨率和记录灵敏度。

3. 发明申请

US20040252402A1 Magnetic head lifting and lowering device 审中-公开
标题翻译：磁头升降装置
公开(公告)号：US20040252402A1
公开(公告)日：2004-12-16
申请号：US10857524
申请日：2004-05-27
申请人： Matsushita Electric Industrial Co., Ltd.
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G11B011/00 , G11B021/02
CPC分类号： G11B11/10597 , G11B5/48 , G11B5/54 , G11B11/10558 , G11B11/1058
摘要： It is an object of the present invention to provide a magnetic head lifting and lowering device that allows a thin magneto-optical disk recording and reproducing device to be provided. A magnetic head lifting and lowering device is provided with a fastening plate, a magnetic head having a first position at which information is recorded and which is near or in contact with the information recording medium and a second position that is away from the information recording medium, a support member including an attachment portion to which the magnetic head element is attached, a fastened portion fastened to the fastening plate, and a leaf spring portion oblique to the fastening plate between the attachment portion and the fastened portion position, and a lifter. The lifter includes a connected sliding member that is connected to the fastening plate in such a manner that it is capable of sliding in a direction linking the attachment portion and the fastened portion of the support member. The connected sliding member has a lifting and lowering portion disposed on the leaf spring portion side of the fastening plate. The lifting and lowering portion, when the magnetic head element is in the first position, is disposed away from the leaf spring portion on the side of the leaf spring portion that is opposite the magnetic head side.
摘要翻译：本发明的目的是提供一种能够提供薄磁光盘记录和再现装置的磁头提升和降低装置。一种磁头提升和降低装置设置有紧固板，磁头具有记录信息的第一位置和与信息记录介质接近或接触的第一位置以及远离信息记录介质的第二位置包括固定有所述磁头元件的安装部的支撑部件，紧固于所述固定板的紧固部以及在所述安装部与所述固定部位置之间相对于所述固定板倾斜的板簧部，以及升降器。升降机包括连接的滑动构件，其以能够沿着连接附接部分和支撑构件的紧固部分的方向滑动的方式连接到紧固板。连接的滑动构件具有设置在紧固板的板簧部分侧上的提升和降低部分。当磁头元件处于第一位置时，提升和下降部分远离板簧部分的与磁头侧相对的一侧的板簧部分设置。

4. 发明申请

US20040244027A1 Magneto-optical recording medium and signal reproduction method 失效
标题翻译：磁光记录介质和信号再现方法
公开(公告)号：US20040244027A1
公开(公告)日：2004-12-02
申请号：US10765601
申请日：2004-01-27
发明人： Tetsuhiro Sakamoto , Kazutomo Miyata , Teruyuki Ota , Makoto Watanabe , Yasuhito Tanaka , Goro Fujita , Takeshi Miki , Kazuhiko Fujiie
IPC分类号： G11B011/00
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593
摘要： In reproduction from a magneto-optical recording medium by the domain wall displacement detection method, it is possible to avoid occurrence of ghost signals and to improve dropout, and moreover design of magnetic layers is made easy. A configuration is adopted having at least, in order from the side of incidence of laser light for reproduction, a first magnetic layer 11 constituting a reproduction layer, a second magnetic layer 12 constituting a control layer, a third magnetic layer 13 constituting a blocking layer, and a fourth magnetic layer 14 constituting a recording layer, which if the respective Curie temperatures thereof are TC1, TC2, TC3 and TC4, satisfy the relations TC1>TC3>TC2 and TC4>TC3. At the same time, if the magnetic anisotropy of the second magnetic layer is Ku2 and the magnetic anisotropy of the third magnetic layer is Ku3, the relation Ku3>Ku2 is satisfied. A configuration is adopted in which a magnetic domain wall in the first magnetic layer 11 in front of the spot irradiated by the reproduction light on the optical recording medium in the direction of travel is displaced toward the peak temperature portion occurring in the proximity of the center of the reproduction light spot due to irradiation by reproduction light, so that a recorded domain is expanded, and in addition displacement in the spot direction of a domain wall in the first magnetic layer 11 behind the reproduction light spot in the direction of travel is suppressed; moreover, the second magnetic layer 12 and the third magnetic layer 13 control the magnetic exchange coupling between the first magnetic layer 11 and the fourth magnetic layer 14.
摘要翻译：在通过畴壁位移检测方法从磁光记录介质的再现中，可以避免重影信号的发生和改善压差，并且进一步使得磁性层的设计变得容易。从构成再现层的第一磁性层11，构成控制层的第二磁性层12，构成阻挡层的第三磁性层13至少按照从再现用激光入射侧开始的顺序，以及构成记录层的第四磁性层14，如果各自的居里温度为TC1，TC2，TC3和TC4，则满足关系TC1> TC3> TC2和TC4> TC3。同时，如果第二磁性层的磁各向异性为Ku2，第三磁性层的磁各向异性为Ku3，则满足关系Ku3> Ku2。采用这样的结构，其中在光记录介质上沿着行进方向由再现光照射的光斑前面的第一磁性层11中的磁畴壁朝着在中心附近发生的峰值温度部分移位由于再现光的照射而产生的再现光点，使得记录的域被扩展，并且另外抑制在行进方向上的再现光点后面的第一磁性层11中的畴壁的光斑方向上的位移 ; 此外，第二磁性层12和第三磁性层13控制第一磁性层11和第四磁性层14之间的磁交换耦合。

5. 发明申请

US20040240326A1 Storage apparatus 失效
标题翻译：储存装置
公开(公告)号：US20040240326A1
公开(公告)日：2004-12-02
申请号：US10885957
申请日：2004-07-07
申请人： FUJITSU LIMITED
发明人： Nobuhide Aoyama , Ryota Akiyama , Yasuaki Morimoto , Tetsuo Hosokawa
IPC分类号： G11B005/09 , G11B011/00
CPC分类号： G11B20/1403 , G11B7/005 , G11B7/0079 , G11B7/126 , G11B7/1263 , G11B7/24085 , G11B11/1051 , G11B11/10515 , G11B11/10543 , G11B11/10554 , G11B11/10584 , G11B11/10597 , G11B20/10 , G11B2007/0013 , G11B2020/1259
摘要： A storage apparatus, capable of record or reproduce of an optical information recording medium in which ROM information is recorded with phase pits and RAM information is recorded on top of a recording region of the phase pits, has a main controller that, when the output of the recording information detection systemnulla system for detecting reflected light of a laser beam from the optical information recording medium and generating signals corresponding to ROM and RAM informationnullsimultaneously contains ROM and RAM signals corresponding to ROM and RAM information, performs negative feedback control of a semiconductor laser emission using ROM signal in the output of the recording information detection system and performs control so as to obtain read-out and played-back ROM signal from the output of an optical intensity detection system for detecting the intensity of the laser light.
摘要翻译：能够记录或再现其中记录有相位凹坑和RAM信息的ROM信息的光信息记录介质的存储装置，其记录在相位坑的记录区域的顶部，具有主控制器，当输出记录信息检测系统 - 用于检测来自光学信息记录介质的激光束的反射光并产生与ROM和RAM信息相对应的信号的系统，同时包含对应于ROM和RAM信息的ROM和RAM信号，执行负反馈控制在记录信息检测系统的输出端使用ROM信号的半导体激光发射，并且执行控制，以从用于检测激光强度的光强度检测系统的输出获得读出和重放的ROM信号。

6. 发明申请

US20040190858A1 Data recording and reproduction apparatus and method capable of time shift playback 有权
标题翻译：能够进行时移播放的数据记录和再现装置和方法
公开(公告)号：US20040190858A1
公开(公告)日：2004-09-30
申请号：US10807609
申请日：2004-03-24
发明人： Akinobu Sugihara
IPC分类号： G11B011/00
CPC分类号： G11B27/105 , G11B20/10009 , G11B2220/20 , H04N5/76 , H04N5/781 , H04N9/8042
摘要： In a time shift playback operation a read position and a write position are located in a time shift region and when a user changes the time shift reproduction operation to a recording operation the time shift region has a read position associated sector through a write position associated sector having their respective attributes altered into a recording region and in response a recording region has a partial region having an attribute altered into a time shift region. A region having an attribute altered from a recording region into a time shift region has the same size as a region having an attribute altered from a time shift region into a recording region.
摘要翻译：在时移播放操作中，读取位置和写入位置位于时移区域中，并且当用户将时移再现操作改变为记录操作时，时移区域具有通过写入位置相关扇区的读取位置相关联的扇区将其各自的属性改变成记录区域，并且作为响应，记录区域具有将属性改变为时移区域的部分区域。具有从记录区域改变为时移区域的属性的区域具有与具有从时移区域改变为记录区域的属性的区域相同的大小。

7. 发明申请

US20040187145A1 Magnet-optical disk 审中-公开
标题翻译：磁光盘
公开(公告)号：US20040187145A1
公开(公告)日：2004-09-23
申请号：US10480648
申请日：2003-12-29
发明人： Tomiji Tanaka , Yoshiyuki Teraoka , Tamotsu Ishii , Makoto Watanabe
IPC分类号： G11B011/00 , G11B007/24
CPC分类号： G11B7/24079 , G11B7/0938 , G11B11/10578 , G11B20/1217 , G11B20/1403 , G11B20/1833 , G11B27/24 , G11B27/3027 , G11B27/329 , G11B2020/1238 , G11B2020/1268 , G11B2020/1272 , G11B2020/1292 , G11B2220/235 , G11B2220/2525 , G11B2220/2529
摘要： The present invention is a magneto-optical disk adopting the magnetic domain wall displacement detection type ultra-high resolution playback method. The magneto-optical disk has a recording track whose width Tw given as Twnull0.046null(null/NA), where null is a wavelength of a laser light which is irradiated to a magneto-optical disk to play back recorded signals recorded on the magneto-optical disk and NA is a numerical aperture. Thus, the detrack tolerance can be 160 nmpp or more, which is contributed to easier design of the disk drive tracking.
摘要翻译：本发明是采用磁畴壁位移检测型超高分辨率重放方法的磁光盘。磁光盘具有记录轨道，其宽度Tw给定为Tw <= 0.046×（λ/ NA），其中λ是照射到磁光盘上的激光的波长，以记录记录在磁光盘和NA是数值孔径。因此，脱轨公差可以是160nmpp或更大，这有助于更容易地设计磁盘驱动器跟踪。

8. 发明申请

US20040184361A1 Thermally-assisted magnetic recording device, thermally-assisted magnetic reproducing device and electron beam recorder 审中-公开
标题翻译：热辅助磁记录装置，热辅助磁再现装置和电子束记录装置
公开(公告)号：US20040184361A1
公开(公告)日：2004-09-23
申请号：US10792929
申请日：2004-03-05
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Katsutaro Ichihara , Junichi Akiyama , Akira Kikitsu , Tsutomu Tanaka , Kuniyoshi Tanaka
IPC分类号： G11B011/00
CPC分类号： G11B5/00 , G11B5/1278 , G11B9/10 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： Electrons are directed from an electron emitter towards a magnetic recording medium to heat a recording portion of the magnetic recording medium and magnetic information is written by a magnetic recording head to the temperature-elevated recording portion. Otherwise, a magnetic head having a magnetic pole is used and the magnetic pole serves as an electron emitter as well. Alternatively, a space between the electron emitter and recording medium is made shorter smaller the mean free path of electrons in the atmosphere to considerably improve the recording density.
摘要翻译：电子从电子发射器朝向磁记录介质被引导以加热磁记录介质的记录部分，并且磁信息由磁记录头写入升温记录部分。否则，使用具有磁极的磁头并且磁极也用作电子发射器。或者，电子发射器和记录介质之间的空间使得气氛中的电子的平均自由程更短，从而显着地提高了记录密度。

9. 发明申请

US20040182999A1 Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser 失效
标题翻译：在用激光照射的结构的相互作用区域内检测嵌入钢筋的方法和装置
公开(公告)号：US20040182999A1
公开(公告)日：2004-09-23
申请号：US10803267
申请日：2004-03-18
发明人： Paul E. Denney , Jay R. Eastman , Ta-Chieh Huang
IPC分类号： G01J003/28 , G11B011/00
CPC分类号： B23K26/032 , B23K26/03 , B23K26/034 , B23K26/043 , B23K26/12 , B23K26/123 , B23K26/128 , B23K26/142 , B23K26/16 , G01J3/02 , G01J3/0218 , G01J3/0291 , G01J3/28
摘要： A detection system is used during irradiation of an interaction region of a structure including embedded material with laser light. The detection system includes a collimating lens positioned to receive light emitted from the interaction region. The detection system further includes an optical fiber optically coupled to the collimating lens and a spectrometer optically coupled to the optical fiber. The spectrometer is adapted for analysis of the light for indications of the embedded material within the interaction region. The spectrometer includes an input slit adapted to receive light from the optical fiber. The input slit has a width selected to provide sufficient light transmittance and sufficient resolution. The spectrometer further includes an optical grating adapted to receive light from the input slit and to separate the light into a spectrum of wavelengths. The spectrometer further includes a collection lens adapted to receive a selected range of wavelengths of the separated light from the optical grating. The spectrometer further includes a light sensor adapted to receive the selected range of wavelengths and to generate a signal corresponding to an intensity of the received light.
摘要翻译：在包括具有激光的嵌入材料的结构的相互作用区域的照射期间使用检测系统。检测系统包括准直透镜，定位成接收从相互作用区域发出的光。检测系统还包括光学耦合到准直透镜的光纤和光学耦合到光纤的光谱仪。光谱仪适用于分析相互作用区域内的嵌入材料的光的光。光谱仪包括适于接收来自光纤的光的输入狭缝。输入狭缝具有选择的宽度以提供足够的透光率和足够的分辨率。光谱仪还包括适于接收来自输入狭缝的光并将光分离成波长范围的光栅。光谱仪还包括适于接收来自光栅的分离光的选定波长范围的收集透镜。光谱仪还包括适于接收所选择的波长范围并且产生对应于所接收的光的强度的信号的光传感器。

10. 发明申请

US20040160860A1 Magneto-optical recording/reproducing method and apparatus 审中-公开
标题翻译：磁光记录/再现方法和装置
公开(公告)号：US20040160860A1
公开(公告)日：2004-08-19
申请号：US10369360
申请日：2003-02-18
发明人： Hongwei Song , Jingfeng Liu , Vijayakumar Bhagavatula , Akira Inaba , Katsusuke Shimazaki , Norio Ota
IPC分类号： G11B011/00
CPC分类号： G11B20/10009 , G11B11/1051 , G11B20/10055 , G11B2220/2525 , H03M13/1102
摘要： Recording/reproducing methods and apparatuses for a magneto-optical recording medium are disclosed. The magneto-optical recording medium may include a recording layer in which information can be recorded and a reproducing layer to which information in the recording layer can be transferred. According to one embodiment, the method includes encoding the data to be recorded/reproduced with a low-density parity check code, writing the encoded data to the recording layer of the magneto-optical recording medium, transferring the encoded data from the recording layer to the reproducing layer, and decoding the encoded data from the reproducing layer.
摘要翻译：公开了用于磁光记录介质的记录/再现方法和装置。磁光记录介质可以包括其中可以记录信息的记录层和可以传送记录层中的信息的再现层。根据一个实施例，该方法包括用低密度奇偶校验码对要记录/再现的数据进行编码，将编码数据写入磁光记录介质的记录层，将编码数据从记录层传送到再现层，并且从再现层解码编码数据。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式