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111. 发明公开

EP1030294A3 Optical information memory apparatus and optical head 审中-公开
标题翻译：光学信息存储装置和光学头
公开(公告)号：EP1030294A3
公开(公告)日：2000-10-18
申请号：EP99114944.4
申请日：1999-07-30
申请人： FUJITSU LIMITED
发明人： Aoyama, Nobuhide, c/o Fujitsu Limited , Yoshikawa, Hiroyasu, c/o Fujitsu Limited , Hasegawa, Shinya, c/o Fujitsu Limited
IPC分类号： G11B7/125
CPC分类号： B82Y10/00 , G11B7/0901 , G11B7/0908 , G11B7/122 , G11B7/1372 , G11B7/1376 , G11B7/1387 , G11B11/10532 , G11B11/10554 , G11B11/10576 , G11B11/1058 , G11B2007/13727
摘要： Each of an optical information memory apparatus and an optical head has a collimator for collimating beams of light emitted from a semiconductor laser (10) to form a parallel luminous flux (la), and control mechanism for controlling the collimator (20) to control a parallelism of the parallel luminous flux (la) formed by the collimator (20).
摘要翻译：光学信息存储装置和光学头中的每一个具有准直器，用于准直从半导体激光器（10）发射的光束以形成平行光通量（1a）;以及控制机构，用于控制准直器（20）以控制由准直器（20）形成的平行光通量（1a）的平行度。

112. 发明公开

EP0994466A2 Magneto-optical head device having integrated auxiliary lens and magnetic reproducing head and recording and reproducing device using magneto-optical head device 审中-公开
标题翻译：一种磁光头装置具有集成辅助透镜和磁光再生磁头和磁 - 光学头装置使用的记录 - 再现装置
公开(公告)号：EP0994466A2
公开(公告)日：2000-04-19
申请号：EP99120477.7
申请日：1999-10-14
申请人： Sharp Kabushiki Kaisha
发明人： Nakajima, Junsaku
IPC分类号： G11B5/00 , G11B7/10 , G11B11/105 , G11B13/00
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/17 , G11B7/122 , G11B7/1372 , G11B7/22 , G11B11/10536 , G11B11/10543 , G11B11/10554 , G11B11/1058 , G11B2005/0002 , G11B2005/0021 , G11B2005/3996
摘要： A magneto-optical head device includes a light source (1), an objective lens (5) which condenses a light beam emitted from the light source (1), an auxiliary lens (6) which converts an effective numerical aperture of the light beam condensed by the objective lens (5) to irradiate a recording medium (8) with the light beam, and a magnetic reproducing head (7, 72) which is integrated into the auxiliary lens (6). The magneto-optical head device can thus be decreased in size and information can be reproduced from both surfaces of a disk since the magnetic reproducing head (7, 72) is integrated into the auxiliary lens (6). Further, when a thermomagnetic recording medium is employed as the recording medium (8), the magneto-optical head device can reproduce information recorded at a high track density and a high line density.
摘要翻译：一种磁光头装置包括：光源（1），在物镜（5），会聚从所述光源（1）至辅助透镜发射的光束（6）转换为光束的有效数值孔径由物镜会聚（5）照射在记录介质（8）的光束，和一个磁头再现（7，72），所有这些被集成到辅助透镜（6）。磁光头装置可以因此被减少的尺寸和信息可以从磁盘的两面由于磁再生头（7，72）被集成到（6）的辅助透镜来再现。此外，当热磁记录介质被用作记录介质（8），所述磁光头设备可以再现记录在高磁道密度和高密度线的信息。

113. 发明公开

EP0944049A3 Optical head, disk apparatus, method for manufacturing optical head and optical element 有权
标题翻译：一种光学头，光盘装置，一种用于制造光学头和光学元件的方法
公开(公告)号：EP0944049A3
公开(公告)日：2000-03-08
申请号：EP99105015.4
申请日：1999-03-19
申请人： FUJI XEROX CO., LTD.
发明人： Ueyanagi, Kiichi , Baba, Kazuo
IPC分类号： G11B7/12 , G11B7/135 , G11B7/125
CPC分类号： G11B5/00 , B82Y10/00 , G11B5/012 , G11B5/127 , G11B7/122 , G11B7/123 , G11B7/1374 , G11B7/1387 , G11B7/14 , G11B7/22 , G11B11/10543 , G11B11/10554 , G11B11/1058 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , G11B2007/13725 , G11B2007/13727
摘要： An optical head which implements high recording density of a recording medium and which is miniaturized in size and improved in data transfer rate, a disk apparatus, and a method for manufacturing the optical head are provided. A laser beam is emitted from a semiconductor laser, the laser beam is collimated by the collimator lens to a collimated beam and reflected by a mirror, condensed by an condense lens, and incident to an incident surface of a transparent condensing medium. The condensed beam which was incident to the incident surface is refracted by the incident surface, the refracted beam is condensed on a condense surface, a beam spot is formed on the condense surface, and a near field wave leaks from a small aperture. The near field wave leaked from the small aperture propagates in a recording layer of a recording. The beam is served for recording/reproduction on the recording layer.
摘要翻译：提供它实现了一个记录介质的高记录密度的光学头的速率和所有其在尺寸小型化，并且在数据传送时，磁盘设备的改善，以及用于制造该光学头的方法。的激光束从半导体激光器发射的激光束由准直透镜在一个透明冷凝介质的入射面准直以准直光束，并反射由反射镜，通过冷凝以凝结透镜，和入射到。将冷凝的光束，入射到入射面由入射表面折射，折射光束会聚在一个冷凝表面，一个束斑形成在表面上冷凝，并从一个小孔径的近场波泄漏。从小孔漏出的近场波传播在记录的记录层。光束被用于提供在记录层上记录/再现。

114. 发明公开

EP0742557A3 Thin film magnetic head for use with magneto-optic disc drive 失效
标题翻译：用于磁光盘驱动器的薄膜磁头
公开(公告)号：EP0742557A3
公开(公告)日：1996-11-27
申请号：EP96109404.2
申请日：1991-12-11
申请人： SONY CORPORATION OF AMERICA
发明人： Smith, Christopher, c/o Sony Corp. of America
IPC分类号： G11B11/10
CPC分类号： G11B11/10534 , G11B11/10532 , G11B11/10554
摘要： A magnetic overwrite head for a magneto-optical recording system has a magnetically permeable substrate (410) in which a recess (418) is formed to receive a plurality of thin layer coils of conductive material (414,415) on top of one another separated by an insulator (417). By mounting the coils (414,415) in a recess, the flux path between the poles (412,413) of the head is shortened and the field strength of the head is improved for a given amount of current passing through the coils (414,415). The coils (414,415) are oppositely wound and the lower coil (414) has more windings and extends further radially outwardly from the pole (412) than the upper coil (415).
摘要翻译：一种用于磁光记录系统的磁性重写磁头具有导磁衬底（410），其中形成凹槽（418）以在导电材料（414,415）的顶部彼此接收多个薄层线圈，所述多个薄层线圈由绝缘体（417）。通过将线圈（414,415）安装在凹槽中，头部磁极（412,413）之间的磁通路径缩短，并且对于通过线圈（414,415）的给定量的电流，磁头的场强度得到改善。线圈（414,415）相反地缠绕，并且下线圈（414）具有更多绕组并且比上线圈（415）从杆（412）进一步径向向外延伸。

115. 发明授权

EP0392777B1 Track access control system in rotating disc devices with eccentricity correction 失效
标题翻译：为寻轨的控制系统中的设备与该偏心的校正旋转盘
公开(公告)号：EP0392777B1
公开(公告)日：1996-02-07
申请号：EP90303788.5
申请日：1990-04-09
申请人： FUJITSU LIMITED
发明人： Yanagi, Shigenori
IPC分类号： G11B7/09 , G11B7/095
CPC分类号： G11B7/0953 , G11B7/08505 , G11B11/10554 , G11B11/10556 , G11B11/10563 , G11B11/10576 , G11B21/085

116. 发明公开

EP0666565A2 Card drive apparatus and card 失效
标题翻译： Kartenantriebsgerätund Karte。
公开(公告)号：EP0666565A2
公开(公告)日：1995-08-09
申请号：EP95101625.2
申请日：1995-02-07
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA
发明人： Kamo, Masaoyshi, c/o Mitsubishi Denki K.K., , Hasegawa, Kazuo, c/o Mitsubishi Denki K.K. , Onoda, Atsuo, c/o Mitsubishi Denki K.K. , Oomura, Yuuji, c/o Mitsubishi Denki K.K. , Sato, Masao, c/o Mitsubishi Denki K.K. , Nagaoka, Hidetada, c/o Mitsubishi Denki K.K. , Izumi, Yukio, c/o Mitsubishi Denki K.K. , Hashimoto, Akira, c/o Mitsubishi Denki K.K. , Nishikawa, Keiichi, c/o Mitsubishi Denki K.K. , Muratomi, Yoichi, c/o Mitsubishi Denki K.K. , Mizutani, Yasutaka, c/o Mitsubishi El. Eng. Co.,Lt
IPC分类号： G11B25/04 , G11B23/00
CPC分类号： G06K19/044 , G11B5/00808 , G11B5/39 , G11B5/53 , G11B7/0031 , G11B7/0033 , G11B11/10554 , G11B11/1058 , G11B11/10584 , G11B17/0408 , G11B21/04 , G11B25/046 , G11B2007/0013
摘要： A head assembly moving along a long side of a magnetic card (1a), more than one magnetic head (13a,13b) rotating in the head assembly for reading/writing data, a rotary transformer and a carriage with a card holding mechanism for keeping a card at a predefined position are provided in a card reader of the present invention. A rotating part of the rotary transformer (15) in the head assembly receives and sends a signal to the magnetic head (13a,13b) and a fixing part of the rotary transformer is connected to a reading/writing circuit. On the card (1a) of the present invention, which is usually rectangular, there are tracks defined by plural arcs. The arcs are on plural same-size circles whose centers are aligned on one line along the long side of the card. A magnetic card or an optical card can be used for the present invention.
摘要翻译：磁头组件沿着磁卡（1a）的长边移动，在用于读/写数据的磁头组件中旋转的多个磁头（13a，13b），旋转变压器和具有用于保持的卡保持机构的滑架在本发明的读卡器中提供了在预定位置处的卡。头部组件中的旋转变压器（15）的旋转部分接收并发送信号到磁头（13a，13b），并且旋转变压器的固定部分连接到读/写电路。在通常为矩形的本发明的卡（1a）上，存在由多个弧定义的轨道。圆弧在多个相同大小的圆上，其中心沿着卡的长边在一条线上对准。磁卡或光卡可用于本发明。

117. 发明公开

EP0373707A3 Magneto optic data recording system with variable field strength, actuator therefor and method of providing 失效
标题翻译：具有可变场强的MAGNETO光学数据记录系统，其执行器及其提供方法
公开(公告)号：EP0373707A3
公开(公告)日：1991-06-19
申请号：EP89203124.6
申请日：1989-12-08
申请人： Philips Electronics N.V.
发明人： Jansen, Gerardus Lucien Mathildus , Hecht, Matthew Winchester
IPC分类号： G11B11/10
CPC分类号： G11B11/10554 , G11B11/1056
摘要： A magneto-optic data recording system is provided in which the magnetic field production apparatus is disposed on the same side of the disk as the optics, to provide reduced height requirements. Preferably, two magnets are disposed on either side of the optics to provide a resultant magnetic field which is perpendicular to the plane of the disk. By using permanent magnets which are rotatable in opposite directions, a variable field strength is achieved. Preferably, two permanent magnets extending across the recording medium are related by gears to produce equal and opposite rotation which is mechanically independent of movement of other portions of the apparatus.

118. 发明公开

EP0427325A1 Method of and apparatus for writing and reading a magneto-optical record carrier 失效
标题翻译：用于写入和读出的磁光记录介质的方法和装置。
公开(公告)号：EP0427325A1
公开(公告)日：1991-05-15
申请号：EP90202896.8
申请日：1990-11-02
申请人： Philips Electronics N.V.
发明人： Greidanus, Franciscus Johannes Antonius Maria , Spruit, Johannes Hendrikus Maria , Jacobs, Bernardus Antonius Johannus
IPC分类号： G11B11/10 , G11B13/04
CPC分类号： G11B11/10528 , G11B11/10508 , G11B11/10513 , G11B11/10554
摘要： A method and apparatus are described for optically writing and reading information in a pattern of magnetic domains (4, 5) in an information layer (3) of a record carrier (1) by means of an optical scanning beam (b) focused to a diffraction-limited radiation spot (V) and a magnetic field which is generated by means of a coil (13) through which a square-wave energising current is passed which is modulated in dependence upon an information signal (S i ). By modulating the amplitude of the energising current in accordance with the information signal to be written, domains (4) having a variable magnetisation ratio are written, and the information density can be increased.
摘要翻译：的方法和装置是通过来描述用于光学写入和读出信息在磁畴（4,5）的记录载体（1）的信息层（3）的图案的光学扫描光束（b）中聚焦到的受限衍射辐射光点（V）和由通过该方波激励电流被传递的线圈（13），其是依赖于信息信号（Si）的调制手段产生的磁场。通过调节与所述信息信号雅舞蹈激励电流的幅度将被写入;（4）具有可变磁化率域被写入，且信息密度可以增加。

119. 发明公开

EP0426763A1 BIAS FIELD SWITCHING SYSTEM FOR MAGNETO-OPTIC DISK DRIVE 失效
标题翻译： SYSTEM FOR磁极化用于磁光盘单元的转换。
公开(公告)号：EP0426763A1
公开(公告)日：1991-05-15
申请号：EP89910985.0
申请日：1989-09-19
申请人： Hewlett-Packard Company
发明人： BERG, Thomas, E.
IPC分类号： G11B5 , G11B11
CPC分类号： G11B11/10517 , G11B11/10504 , G11B11/10536 , G11B11/1055 , G11B11/10554
摘要： Une unité à disque magnéto-optique (50) comprend un disque magnéto-optique (20) et un bras rotatif (52) servant à positionner un assemblage de commutation de focalisation/champ de polarisation (84) adjacent à des positions binaires sur le disque. Un assemblage de commutation de champ de polarisation (84) comprend un aimant permanent annulaire (10) monté à l'intérieur d'un guide (144) permettant le mouvement entre des positions d'écriture et d'effacement, ainsi qu'une lentille d'objectif (98). L'aimant (10) présente une ouverture centrale (14) qui est placée de manière concentrique autour de la lentille d'objectif (98), et des surfaces polaires (S, N) généralement parallèles au disque (20). Des bobines (148, 150) sur les guides (144) sont mises sous tension pour entraîner l'aimant (10) entre les positions d'écriture et d'effacement. Dans la position d'effacement, l'aimant (10) vient en contact avec un champ magnétique d'effacement présentant une première polarité sur le disque (20). Dans la position d'écriture, l'aimant (10) vient en contact avec un champ magnétique d'écriture présentant une deuxième polarité sur le disque (20). L'aimant (10) est verrouillé de manière libérable tant dans la position d'écriture que dans la position d'effacement par des éléments ferro-magnétiques (162) montés sur le guide (144).

120. 发明公开

EP0392777A2 Track access control system in rotating disc devices with eccentricity correction 失效
标题翻译：为轨道的控制系统中的设备寻求与该偏心的校正旋转盘。
公开(公告)号：EP0392777A2
公开(公告)日：1990-10-17
申请号：EP90303788.5
申请日：1990-04-09
申请人： FUJITSU LIMITED
发明人： Yanagi, Shigenori
IPC分类号： G11B7/09 , G11B7/095
CPC分类号： G11B7/0953 , G11B7/08505 , G11B11/10554 , G11B11/10556 , G11B11/10563 , G11B11/10576 , G11B21/085
摘要： A track access control system in a rotating disc storage device including: a data writing/reading head (2) which is movable in a radial direction of a rotating disc; and an impinging beam moving mechanism is mounted on the data writing/reading head (2), for moving am impinging position of the optical beam for the data writing/reading, on the data writing/reading head (2). A relative position of the impinging beam on the disc from an optimum position is detected. The position of the head (2) is controlled responding to a low frequency component of the above detected deviation, and the operation of the impinging beam moving mechanism is controlled responding to a high frequency component of the above detected deviation, so that the deviation is reduced during a track servo operation. A waveform memorizing circuit records a waveform of the movement of the head (2) during a track servo operation. A track jump control mechanism moves the head (2) and the above relative position of the impinging beam so that the position of the impinging beam moves to a requested track. During the track jump operation, control quantities to move the head (2) and the above relative position of the impinging beam is modified by adding the above recorded data of the waveform memorizing circuit thereto, corresponding to a current rotation angle of the disc. Further, when an erasing beam outputting unit is mounted on the head (2′), a displacement of an outputting position of the erasing beam on the head (2′) from a predetermined position, is memorized during a track servo operation, and is added in the above modification during the track jump operation.
摘要翻译：甲轨道访问控制系统中的旋转盘存储设备，包括：一数据读/写头（2），它是一个旋转盘的径向方向移动; 并撞击束移动机构安装在数据写入/用于移动所述光束的入射位置的数据写入/读取，对数据写入/读出磁头（2）（2）读出头。当检测到光束在最佳位置碰撞在盘上从的相对位置。头部（2）的位置被控制响应于上述检测到的偏差的低频成分，并撞击束移动机构的外科手术来控制响应于上述检测到的偏差的高频分量，所以没有偏差轨道伺服操作过程中降低。波形记忆电路轨道伺服操作期间记录头（2）的运动的波形。轨道跳跃控制机构使所述头部（2）和所述撞击梁的上述相对位置所以没有撞击光束移动到所请求的轨道的位置。在轨道跳跃操作，控制量来移动所述头部（2）和所述撞击梁的上述相对位置是通过将波形的上述记录的数据记忆电路于此改性，对应于盘的当前旋转角。此外，当擦除光束输出廷单元被安装在所述头部（2分钟），在从预定位置的头部（2分钟）的擦除光束的输出开始位置的位移，跟踪伺服手术期间被存储，并且是轨道跳跃操作期间在上述变形例中加入。

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