公开(公告)号：US5157650A

公开(公告)日：1992-10-20

申请号：US746061

申请日：1991-08-12

申请人： Tadashi Ozue ,  Masahiko Chaya ,  Tatsuya Narahara

发明人： Tadashi Ozue ,  Masahiko Chaya ,  Tatsuya Narahara

IPC分类号： G11B7/003 ,  G11B7/12 ,  G11B7/14

CPC分类号： G11B7/14 ,  G11B7/0031 ,  G11B7/12

摘要： An optical recording apparatus employing a plurality of modulated laser beams as means for recording information on an optical recording medium, comprising a laser beam source which emits a laser beam, a plurality of carrier sources which generate carriers respectively of different frequencies, a plurality of switching circuits respectively connected to the carrier sources to interrupt the carriers intermittently for modulation according to information data signals applied respectively thereto to provide driving signals, an acoustooptic reflector which splits the laser beam into a plurality of discrete laser beam intermittently interrupted respectively according to the driving signals, a focusing lens for focusing the plurality of discrete laser beams on spots on the recording surface of a recording medium, and a polygonal rotating mirror disposed between the acoustooptic deflector and the focusing lens to reflect the plurality of discrete laser beams so as to sweep the recording surface of the recording medium for information recording simultaneously on a plurality of recording tracks on the recording medium.

摘要翻译： 一种采用多个调制激光束的光记录装置，用于在光记录介质上记录信息的装置，包括发射激光束的激光束源，分别产生不同频率的载波的多个载波源，多个切换 分别连接到载波源的电路，以根据分别施加的信息数据信号间歇地中断载波，以提供驱动信号;声光反射器，其将激光束分裂成分别根据驱动信号间歇地中断的多个离散激光束 ，用于将多个离散激光束聚焦在记录介质的记录表面上的点上的聚焦透镜，以及设置在声光偏转器和聚焦透镜之间的多边形旋转镜，以反射多个离散的激光束，以便扫描 录音 用于在记录介质上的多个记录轨道上同时进行信息记录的记录介质。

公开(公告)号：US5138603A

公开(公告)日：1992-08-11

申请号：US273082

申请日：1988-11-18

申请人： Tatsuya Narahara ,  Masahiko Chaya

发明人： Tatsuya Narahara ,  Masahiko Chaya

IPC分类号： G11B7/003 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/0908 ,  G11B7/003

摘要： A system and method for processing an optical information on an optical record medium are disclosed in which a timing at which a scanning of a light spot on one record track of the optical record medium derived from an acoustooptic deflector is started is controlled on the basis of a tracking error signal indicating that a scanning trajectory of the light spot is deviated from a center line of the one record track on the optical record medium. Therefore, the light spot can accurately be tracked on each record track on the high density optical record medium such as a tape in a simple construction.

摘要翻译： 公开了一种用于处理光学记录介质上的光学信息的系统和方法，其中基于从声光偏转器导出的光学记录介质的一个记录轨道上的光斑的扫描开始的时间被控制在 指示光点的扫描轨迹偏离光记录介质上的一个记录轨道的中心线的跟踪误差信号。 因此，可以在简单结构的高密度光学记录介质（例如磁带）上的每个记录轨道上精确地跟踪光斑。

公开(公告)号：US5128919A

公开(公告)日：1992-07-07

申请号：US270518

申请日：1988-11-14

申请人： Tatsuya Narahara ,  Masahiko Chaya

发明人： Tatsuya Narahara ,  Masahiko Chaya

IPC分类号： G11B7/125 ,  G11B7/005 ,  G11B7/14

CPC分类号： G11B7/005 ,  G11B7/14

摘要： An apparatus for reproducing an optically recorded information on an optical record medium is disclosed in which a plurality of light sources which irradiate light beams on a plurality of record tracks are illuminated in a time sharing mode and a reproduced signal derived by a receipt of reproduced lights with a signal photo detecting element is processed so as to reproduce the information on the tracks, whereby a crosstalk due to the light sources which simultaneously irradiate the light beams on the plurality of mutually adjacent record tracks can be avoided and a simple construction of the optically recorded information reproducing apparatus can be achieved.

摘要翻译： 公开了一种用于在光学记录介质上再现光学记录信息的装置，其中在多个记录磁道上照射光束的多个光源以时间共享模式被照亮，并且通过接收再现的光来导出再生信号 对信号光检测元件进行处理以再现轨道上的信息，由此可以避免同时照射多个相邻记录轨道上的光束的光源引起的串扰，并且可以简单地构造光学 可以实现记录信息再现装置。

公开(公告)号：US5046061A

公开(公告)日：1991-09-03

申请号：US232690

申请日：1988-08-16

申请人： Masahiko Chaya ,  Tatsuya Narahara

发明人： Masahiko Chaya ,  Tatsuya Narahara

IPC分类号： G11B7/12 ,  G11B7/135

CPC分类号： G11B7/12 ,  G11B7/1353

摘要： An optical recording and/or reproducing apparatus employs an optical tape, an optical disc or the like as a record medium. The apparatus comprises an acousto-optic deflector which receives a light beam and generates a zero order beam which passes straight through the deflector and a first order beam which is deflected by the deflector. The zero and first order beams are separated from each other by a polarized beam splitter. The first order beam is projected via a 1/4 wavelength plate onto an optical record medium, while the zero order beam, which does not contribute to recording or reproduction of information signals, is shunted aside so that it does not reach the optical record medium. The reflected light beam from the optical record medium is extracted by the same polarized beam splitter and used for reproduction of the information signals.

摘要翻译： 光学记录和/或再现装置使用光学带，光盘等作为记录介质。 该装置包括声光偏转器，其接收光束并产生直接通过偏转器的零级光束和由偏转器偏转的第一级光束。 零级和一级光束通过偏振分束器彼此分离。 第一级光束通过1/4波长板投射到光学记录介质上，而不对信息信号的记录或再现有贡献的零级光束被分流，使得其不到达光学记录介质 。 来自光学记录介质的反射光束被相同的偏振光束分离器提取，并用于信息信号的再现。

公开(公告)号：US5979755A

公开(公告)日：1999-11-09

申请号：US552107

申请日：1995-11-02

申请人： Masahiko Chaya

发明人： Masahiko Chaya

IPC分类号： G11B15/68 ,  G06K13/12 ,  G11B17/22 ,  G11B17/26 ,  G11B27/10 ,  G06K5/00

CPC分类号： G11B17/225 ,  G06K13/12

摘要： An auto-changer has a shelf which holds magazines that contained differently sized cartridges. The magazines are conveyed to a recording/reproducing device and include discrimination information concerning the cartridges contained therein. Sensors detect the discrimination information, and a conveyor conveys the magazine between the housing shelf and the recording/reproducing devices based on the detected information.

摘要翻译： 自动更换器具有一个搁板，其上装有包含不同尺寸的墨盒的杂志。 杂志被传送到记录/再现装置，并且包括关于其中包含的盒的辨别信息。 传感器检测识别信息，并且传送器基于检测到的信息传送外壳搁架和记录/再现设备之间的盒。

公开(公告)号：US5361242A

公开(公告)日：1994-11-01

申请号：US59729

申请日：1993-05-11

申请人： Masahiko Chaya ,  Toru Takahashi

发明人： Masahiko Chaya ,  Toru Takahashi

IPC分类号： G11B11/105 ,  G11B13/04

CPC分类号： G11B11/10536

摘要： Disclosed is an external magnetic field application device for use in an optical information recording and reproducing apparatus. The device has a winding wound on an outer periphery of a magnetic pole piece and a magnetic plate attached to the magnetic pole piece to form a magnetic circuit. The device includes a heat dissipation member arranged to contact an outer periphery of the winding for conducting heat generated in the winding, when the winding is energized, to the magnetic plate, and a metal plate arranged on top of the heat dissipation member for dissipating heat of the heat dissipation member.

摘要翻译： 公开了一种用于光信息记录和再现装置的外部磁场施加装置。 该装置具有卷绕在磁极片的外周上的绕组和附接到磁极片的磁性板以形成磁路。 所述装置包括散热构件，其布置成接触所述绕组的外周，用于当所述绕组被通电时将在所述绕组中产生的热量传导到所述磁性板;以及金属板，布置在所述散热构件的顶部用于散热 的散热构件。

公开(公告)号：US5872766A

公开(公告)日：1999-02-16

申请号：US784959

申请日：1997-01-16

申请人： Masahiko Chaya

发明人： Masahiko Chaya

IPC分类号： G11B21/02 ,  G11B7/085 ,  G11B17/02

CPC分类号： G11B7/08582

摘要： An optical pickup apparatus is guided in a predetermined direction along a pair of guide shafts, and includes a supporting mechanism for supporting the optical pickup relative to the guide shafts, a preloading mechanism for providing a preload force on the supporting mechanism against the guide shafts, and an adjusting mechanism for adjusting the preload force of the preloading mechanism.

摘要翻译： 光拾取装置沿着一对导向轴在预定方向上被引导，并且包括用于相对于导向轴支撑光学拾取器的支撑机构，用于在支撑机构上相对于引导轴提供预载力的预加载机构， 以及用于调节预加载机构的预载力的调节机构。

公开(公告)号：US5818666A

公开(公告)日：1998-10-06

申请号：US766106

申请日：1996-12-16

申请人： Masahiko Chaya

发明人： Masahiko Chaya

IPC分类号： G11B21/02 ,  G11B7/085 ,  G11B11/105 ,  G11B21/08 ,  H02K41/035

CPC分类号： G11B11/10571 ,  G11B21/081 ,  H02K41/0356 ,  G11B21/083

摘要： A linear motor drive apparatus for moving a head carriage in a direction perpendicular to tracks on a recording medium includes a permanent magnet, first yoke for supporting the permanent magnet, a second yoke, and a coil fixed on the head carriage and wound around the second yoke. The permanent magnet is disposed in a direction parallel to a moving direction of the head carriage. The second yoke is disposed to be spaced apart from the permanent magnet at a predetermined interval. An adjusting mechanism is provided in the apparatus so as to adjust a relative position between the first and second yokes to adjust the predetermined interval.

摘要翻译： 一种用于沿着垂直于记录介质上的轨道的方向移动磁头托架的线性马达驱动装置包括：永磁体，用于支撑永磁体的第一磁轭，固定在磁头托架上的第二磁轭和卷绕在第二磁盘上的线圈 轭。 永磁体设置在平行于头架的移动方向的方向上。 第二磁轭设置成以预定间隔与永磁体隔开。 在该装置中设置调节机构，以便调整第一和第二轭之间的相对位置以调整预定间隔。

公开(公告)号：US5594708A

公开(公告)日：1997-01-14

申请号：US467395

申请日：1995-06-06

申请人： Masahiko Chaya

发明人： Masahiko Chaya

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B17/04 ,  G11B19/12 ,  G11B11/00 ,  G11B33/02

CPC分类号： G11B11/10558 ,  G11B11/10597 ,  G11B17/043 ,  G11B19/12 ,  G11B11/10508 ,  G11B11/10552 ,  G11B11/1058

摘要： An information recording/reproducing apparatus for effecting recording of information on and/or reproduction of information from a recording medium by applying a magnetic field modulated according to information while irradiating a light beam to the recording medium by an optical pickup, includes a magnetic head for generating the magnetic field, a floating type slider for supporting the magnetic head, a discriminating device for discriminating a kind of the recording medium, an escaping device, including a driving source, for escaping the magnetic head away from the recording medium in accordance with a discrimination result and a carriage on which the magnetic head, the floating slider and the escaping device are mounted.

摘要翻译： 一种信息记录/再现装置，用于通过在通过光学拾取器向记录介质照射光束的同时施加根据信息调制的磁场来进行从记录介质记录信息和/或再现信息，所述信息记录/再现装置包括用于 产生磁场，用于支撑磁头的浮动型滑块，用于鉴别记录介质的种类的识别装置，包括驱动源的逃逸装置，用于根据磁场使磁头远离记录介质 识别结果和安装有磁头，浮动滑块和逃逸装置的滑架。

公开(公告)号：US5590095A

公开(公告)日：1996-12-31

申请号：US295141

申请日：1994-08-24

申请人： Masahiko Chaya

发明人： Masahiko Chaya

IPC分类号： G11B11/105 ,  G11B21/21 ,  G11B7/00 ,  G11B5/54 ,  G11B17/00

CPC分类号： G11B21/21 ,  G11B11/10558 ,  G11B11/1058

摘要： Disclosed is magnetoptical disc apparatus for recording information in magnetoptical recording medium using a floating type magnetic head. The apparatus includes a floating type magnetic head for applying a modulated magnetic field to the medium, a leaf spring for supporting the magnetic head floatably above the medium, a retreating mechanism for moving the magnetic head from a position at which the magnetic head can contact the medium and a limiting device for limiting a deflection of the leaf spring when the retreating mechanism moves the magnetic head from the above-mentioned position. The driving stroke needed for moving the magnetic head can be reduced, and as a result, the retreating mechanism can be made small in size.

摘要翻译： 公开了一种用于使用浮动型磁头在磁光记录介质中记录信息的磁光盘装置。 该装置包括用于向介质施加调制磁场的浮动型磁头，用于将磁头支撑在介质上方的用于支撑磁头的片簧;用于使磁头从磁头可接触的位置移动的后退机构 介质和限制装置，用于当后退机构从上述位置移动磁头时，限制板簧的偏转。 可以减少用于移动磁头所需的驱动行程，结果，可以使后退机构尺寸小。