专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US06657927B1 Optical head and apparatus provided therewith 失效
标题翻译：光头及其设备
公开(公告)号：US06657927B1
公开(公告)日：2003-12-02
申请号：US09366548
申请日：1999-08-04
申请人： Hiroyuki Awano , Hitoshi Watanabe
发明人： Hiroyuki Awano , Hitoshi Watanabe
IPC分类号： G11B1100
CPC分类号： G11B7/1387 , G11B7/122 , G11B7/123 , G11B7/127 , G11B7/1356 , G11B7/1362 , G11B7/1374 , G11B11/10532 , G11B11/10554 , G11B11/1058 , G11B2007/13727
摘要： An optical head comprises a laser light source, detectors, a reflecting mirror, a magnetic coil, and a driving circuit which are formed in a monolithic manner on a surface of a substrate. A diffraction grating is formed on the reflecting mirror. A reflected light beam can be divided into those directed to the detectors. Optical paths from the reflecting mirror to the respective detectors are disposed in directions along the substrate. Accordingly, the thickness of the optical head can be made thin. The substrate can be also processed into a slider. The optical head is capable of high speed access and high speed data transfer, in which a miniaturized size and a light weight are realized.
摘要翻译：光头包括在基板的表面上以整体方式形成的激光源，检测器，反射镜，电磁线圈和驱动电路。衍射光栅形成在反射镜上。反射光束可以分为针对检测器的那些。从反射镜到各个检测器的光路沿着衬底设置。因此，可以使光学头的厚度变薄。衬底也可以加工成滑块。光头能够实现高速访问和高速数据传输，其中实现了小型化和轻量化。

12. 发明授权

US06633514B1 Magneto-optical reproducing method using a plural of different reproducing beams 失效
标题翻译：使用多个不同再现光束的磁光再现方法
公开(公告)号：US06633514B1
公开(公告)日：2003-10-14
申请号：US09601196
申请日：2000-08-16
申请人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa
发明人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa
IPC分类号： G11B1100
CPC分类号： G11B11/10515 , G11B11/10528 , G11B11/10584 , G11B11/10586 , G11B11/10595
摘要： A magneto-optical recording medium has magneto-optical recording layers (11, 12, 13) and reproducing layers (21, 22, 23). The information recorded in the reproducing layers are reproduced by means of reproducing light beams (31, 32, 33) of different wavelengths, respectively. In reproduction, magnetic domains (4) recorded in the recording layers are transferred in the reproducing layers formed on the respective recording layers, the transferred magnetic domains (5) are enlarged with an external magnetic field, and the information is reproduced. Since information is recorded and reproduced for each recording layer, the recording density is improved. Further since the reproduction signals are amplified by the magnetic domain enlargement, the C/N is improved.
摘要翻译：磁光记录介质具有磁光记录层（ 11,12,13，）和再现层（ 21,22,23 ）。记录在再现层中的信息分别通过再现不同波长的光束（ 31,32,33 ）来再现。在再现中，记录在记录层中的磁畴（ 4 PDAT>）被传送到形成在各个记录层上的再现层中，转移的磁畴（ 5 ）用外部磁场放大，信息被再现。由于为每个记录层记录和再现信息，因此提高了记录密度。此外，由于再现信号被磁畴放大放大，因此C / N得到改善

13. 发明授权

US06608799B2 Magneto-optical reproduction apparatus with detecting of displacement of domain wall of recording domain 失效
标题翻译：磁光再现装置，用于检测记录域的畴壁位移
公开(公告)号：US06608799B2
公开(公告)日：2003-08-19
申请号：US09839307
申请日：2001-04-23
申请人： Yasushi Hozumi
发明人： Yasushi Hozumi
IPC分类号： G11B1100
CPC分类号： G11B11/10515
摘要： Recorded information is reproduced based on the displacement of a domain wall using an optical system having a reproducing optical beam with the beam waist diameter thereof satisfying a condition of 2Wo
摘要翻译：使用具有满足条件为2Wo <900nm的具有再现光束的光束的光束系统，基于畴壁的位移再现记录信息。在记录介质中形成明显的温度分布，磁壁的位移速度增加。即使当盘旋转速度增加时，由此实现可靠的畴壁位移再现。

14. 发明授权

US06593014B1 Thermomagnetic recording medium, thermomagnetic recording and reproducing method, and thermomagnetic recording and reproducing device 有权
标题翻译：热磁记录介质，热磁记录和再现方法以及热磁记录和再现装置
公开(公告)号：US06593014B1
公开(公告)日：2003-07-15
申请号：US09580812
申请日：2000-05-26
申请人： Yasushi Ogimoto , Kenji Nakanishi , Masaki Hamamoto , Kunio Kojima , Hiroyuki Katayama
发明人： Yasushi Ogimoto , Kenji Nakanishi , Masaki Hamamoto , Kunio Kojima , Hiroyuki Katayama
IPC分类号： G11B1100
CPC分类号： G11B11/10584 , G11B5/74 , G11B5/82 , G11B11/10515 , G11B11/10586 , G11B11/10595 , G11B2005/0005 , G11B2005/0021 , Y10T428/12611
摘要： A thermomagnetic recording medium includes a thermal change layer whose thermal conductivity is induced to change by a metal-to-insulator transition, is greater on a lower temperature side of a transition temperature and is smaller on a higher temperature side thereof. A thermomagnetic recording method includes setting a recording or reproducing temperature higher than the temperature of the recording medium at the circumference of a light spot and higher than a threshold temperature for change of the thermal conductivity of the thermal change layer. A thermomagnetic recording and reproducing device is provided with the above-mentioned thermomagnetic recording medium, an optical pickup and a magnetic head and conducts recording and reproduction by the above-mentioned thermomagnetic recording and reproducing device.
摘要翻译：热磁记录介质包括其热导率被金属 - 绝缘体转变而变化的热变化层在转变温度的较低温度侧较大，并且在其较高温度侧较小。热磁记录方法包括在光点的周围设置高于记录介质的温度的记录或再现温度，并且高于用于改变热变性层的热导率的阈值温度。具有上述热磁记录介质，光拾取器和磁头的热磁记录和再现装置，并通过上述热磁记录和再现装置进行记录和再现。

15. 发明授权

US06542443B1 Efficient linearization of saturation channels 有权
标题翻译：饱和通道的高效线性化
公开(公告)号：US06542443B1
公开(公告)日：2003-04-01
申请号：US09692503
申请日：2000-10-18
申请人： William D. Huber
发明人： William D. Huber
IPC分类号： G11B1100
CPC分类号： G11B5/03 , G11B5/012 , G11B5/09 , G11B7/004 , G11B11/10508 , G11B11/10515 , G11B20/10 , G11B2005/0029
摘要： A data storage system achieves improved bandwidth efficiency using a modulated recording signal, channel linearization, and a compressor circuit for compressing peak amplitude of the recording signal. In a preferred embodiment, quadrature amplitude modulation and demodulation is utilized. Another embodiment achieves improved bandwidth efficiency using a recording medium having a substantially rectangular magnetic flux versus magnetic field intensity hysteresis characteristic and a substantially rectangular Kerr rotation versus magnetic field intensity hysteresis characteristic. Yet another embodiment achieves improved bandwidth efficiency using a storage medium having a substantially abrupt flux transition.
摘要翻译：数据存储系统使用调制的记录信号，信道线性化以及用于压缩记录信号的峰值幅度的压缩器电路来实现带宽效率的提高。在优选实施例中，利用正交幅度调制和解调。另一个实施例使用具有基本上矩形磁通量相对于磁场强度滞后特性和基本上矩形克尔旋转与磁场强度滞后特性的记录介质来实现改进的带宽效率。另一个实施例使用具有基本上急剧的通量转变的存储介质来实现改进的带宽效率。

16. 发明授权

US06535464B1 Magneto-optic head with burnishing feature 失效
标题翻译：具有抛光功能的磁光头
公开(公告)号：US06535464B1
公开(公告)日：2003-03-18
申请号：US09100442
申请日：1998-06-19
申请人： Zine-Eddine Boutaghou
发明人： Zine-Eddine Boutaghou
IPC分类号： G11B1100
CPC分类号： G11B5/6005 , Y10T29/49041
摘要： A magneto-optical head assembly includes waffle-like burnishing features incorporated into the air bearing surfaces of the head assembly. The magneto-optical mesa, or operative feature of the magneto-optical head assembly, is configured such that the burnishing features are closer to the disc surface than the mesa. During operation, media asperities are contacted by the burnishing features rather than the mesa, and media debris generated by contact with the burnishing features is accumulated within the burnishing features, preventing degradation of read/write performance. Various methods for fabricating the magneto-optical head assembly and alternative configurations of the burnishing features are discussed.
摘要翻译：磁光头组件包括结合到头组件的空气轴承表面中的华夫顿抛光特征。磁光台面或磁光头组件的操作特征被配置为使得抛光特征比台面更靠近盘表面。在操作期间，介质粗糙度与抛光特征而不是台面相接触，并且与抛光特征接触产生的介质碎片积累在抛光特征内，防止读/写性能下降。讨论了用于制造磁光头组件的各种方法和抛光特征的替代配置。

17. 发明授权

US06504797B1 Magneto-optical recording medium having multiple magnetic layers and reproducing method thereof 失效
标题翻译：具有多个磁性层的磁光记录介质及其再现方法
公开(公告)号：US06504797B1
公开(公告)日：2003-01-07
申请号：US09603492
申请日：2000-06-23
申请人： Motoyoshi Murakami , Takeshi Sakaguchi , Yasumori Hino
发明人： Motoyoshi Murakami , Takeshi Sakaguchi , Yasumori Hino
IPC分类号： G11B1100
CPC分类号： G11B11/10578 , G11B11/10515 , G11B11/10582 , G11B11/10584 , G11B11/10586
摘要： A magneto-optical recording medium includes a first magnetic layer and a second magnetic layer. The first magnetic layer is an in-plane magnetized film at room temperature, but changes to a perpendicular magnetized film at a predetermined temperature higher than room temperature, and is thin enough to allow a light beam to pass through it. The second magnetic layer has perpendicular magnetic anisotropy and is arranged to allow magnetic coupling to the first magnetic layer when a light beam for reproduction comes from the first magnetic layer side. The rotation of the polarization plane of a light beam which is reflected off the first magnetic layer and the rotation of the polarization plane of the light beam which passed through the first magnetic layer and reflected off the second magnetic layer compensate each other, thereby canceling each other.
摘要翻译：磁光记录介质包括第一磁性层和第二磁性层。第一磁性层是在室温下为平面内的磁化膜，但在高于室温的预定温度下变为垂直磁化膜，并且足够薄以允许光束通过。第二磁性层具有垂直的磁各向异性，并且被布置成当用于再现的光束来自第一磁性层侧时允许磁耦合到第一磁性层。从第一磁性层反射的光束的偏振面的旋转以及通过第一磁性层并从第二磁性层反射的光束的偏振面的旋转彼此补偿，从而取消每个其他。

18. 发明授权

US06477119B2 Magnetic head drive circuit including paired auxiliary coils, paired switching elements, and switch element control circuit, and magneto-optical recording device using the same 失效
标题翻译：包括成对辅助线圈，成对开关元件和开关元件控制电路的磁头驱动电路，以及使用其的磁光记录装置
公开(公告)号：US06477119B2
公开(公告)日：2002-11-05
申请号：US09736243
申请日：2000-12-15
申请人： Kazuyoshi Ishii
发明人： Kazuyoshi Ishii
IPC分类号： G11B1100
CPC分类号： G11B11/10595 , G11B5/02 , G11B11/10508
摘要： To provide a magnetic head drive circuit or a magneto-optical recording device used with the circuit including a pair of auxiliary coils and a magnetic field generating coil for generating a magnetic field by alternately receiving electric currents flowing in opposite directions through the pair of auxiliary coils, and recording an information signal. When the recording of an information signal is stopped, a current for recording an information signal is maintained in a flowing state and gradually reduced, thereby shifting the recording toward a stop state. Thus, the voltage generated in the auxiliary coil by electromagnetic induction when the recording is stopped is reduced, the consumption of electric power is reduced, and the recording speed is improved.
摘要翻译：为了提供磁头驱动电路或磁光记录装置，该电路包括一对辅助线圈和磁场产生线圈，用于通过交替地接收通过一对辅助线圈沿相反方向流动的电流来产生磁场，并记录信息信号。当信息信号的记录停止时，用于记录信息信号的电流保持在流动状态并逐渐减小，从而将记录转移到停止状态。因此，当记录停止时通过电磁感应在辅助线圈中产生的电压减小，电力消耗降低，并且提高记录速度。

19. 发明授权

US06469960B1 Magneto-optical storage apparatus capable of adjusting the magnetic field strength 失效
标题翻译：能够调整磁场强度的磁光存储装置
公开(公告)号：US06469960B1
公开(公告)日：2002-10-22
申请号：US09541884
申请日：2000-03-31
申请人： Yasuo Miyoshi
发明人： Yasuo Miyoshi
IPC分类号： G11B1100
CPC分类号： G11B11/10595 , G11B7/1267 , G11B11/10504 , G11B11/10515
摘要： In an information storage apparatus for recording information in a recording medium by applying an external magnetic field to a position illuminated by the light beam, an external magnetic field control part controls an external magnetic field strength based on the illuminated position on the recording medium.
摘要翻译：在通过对由光束照射的位置施加外部磁场而将信息记录在记录介质中的信息存储装置中，外部磁场控制部分基于记录介质上的照明位置来控制外部磁场强度。

20. 发明授权

US06466523B1 Displacement of magnetic head and optical head in magneto-optical recording apparatus 失效
标题翻译：磁光记录装置中磁头和光头的位移
公开(公告)号：US06466523B1
公开(公告)日：2002-10-15
申请号：US09649233
申请日：2000-08-29
申请人： Kazuyoshi Ishii
发明人： Kazuyoshi Ishii
IPC分类号： G11B1100
CPC分类号： G11B11/10573 , G11B11/10552
摘要： A magneto-optical recording head includes a magnetic head for applying a magnetic field to a magneto-optical recording medium, and an optical head placed with interposition of the recording medium in opposition to the magnetic head for projecting a light spot through a condenser lens onto the region to which the magnetic field is applied. A first supporter supports the magnetic head, and a second supporter supports the condenser lens. Relative displacement of a magnetic field-generating portion of the magnetic head and the light spot in a horizontal direction parallel to a surface of the recording medium caused by displacements of the magnetic field-generating portion and the light spot in a direction perpendicular to a surface of the recording medium is smaller than the displacement of the magnetic field-generating portion of the magnetic head in the horizontal direction parallel to the surface of the recording medium.
摘要翻译：磁光记录头包括用于向磁光记录介质施加磁场的磁头，以及配置有与磁头相对的记录介质的光学头，用于将光点通过聚光透镜投影到施加磁场的区域。第一支撑件支撑磁头，第二支撑件支撑聚光透镜。磁场产生部分与磁场的平行于记录介质表面的水平方向的相对位移由磁场产生部分和光点在与表面垂直的方向上的位移而引起的记录介质的磁场小于磁头的磁场产生部分在平行于记录介质表面的水平方向上的位移。

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