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1. 发明授权

US5715232A Recording and reproduction of items of information using ROM-RAM storage media 失效
标题翻译：使用ROM-RAM存储介质记录和再现信息项
公开(公告)号：US5715232A
公开(公告)日：1998-02-03
申请号：US699514
申请日：1995-11-27
申请人： Yoshiharu Chikazawa , Akira Kawamura , Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler
发明人： Yoshiharu Chikazawa , Akira Kawamura , Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler
IPC分类号： G06F3/06 , G06F3/08 , G11B7/007 , G11B11/105 , G11B13/04 , G11B21/08 , G11B21/10 , G11B7/24
CPC分类号： G11B7/0079 , G11B11/10597 , G11B13/04 , G11B21/081 , G11B21/10
摘要： A magneto optical disc system includes a disc having permanently recorded tracks overlain with magneto optical recording material. Data is recorded in the magneto optical material in tracks superimposed over the permanently recorded tracks, using the read-only data to define magneto optical tracks. The magneto optically recorded data is correlated with the prerecorded data for defining the location of data stored in the magneto-optic tracks.
摘要翻译：磁光盘系统包括具有与磁光记录材料重叠的永久记录磁道的盘。数据被记录在叠加在永久记录的轨道上的轨道中的磁光材料中，使用只读数据来定义磁光轨。磁光记录数据与预先记录的数据相关，用于定义存储在磁光轨道中的数据的位置。

2. 发明授权

US5031162A Magneto-optical recorded medium with a transparent substrate layer 失效
标题翻译：具有透明基底层的磁光记录介质
公开(公告)号：US5031162A
公开(公告)日：1991-07-09
申请号：US250729
申请日：1988-09-28
申请人： Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler , Heinz-Jorg Schroder
发明人： Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler , Heinz-Jorg Schroder
IPC分类号： G11B13/00 , G11B7/013 , G11B7/24085 , G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B11/10582 , G11B13/045 , G11B11/10597 , G11B7/24085
摘要： An optically-recorded medium in which a reflecting optomagnetic layer is applied to a transparent substrate layer. The recorded medium stores data magnetically and by pits. The magnetically stored data and the pit stored data are superimposed on each other, so that every spot and region on the recorded medium stores both magnetically stored data and pit stored data. The recorded medium is not divided into separate regions for magnetically stored data and pit stored data, and the magnetically stored data and pit stored data may be read out simultaneously by a single light beam.
摘要翻译：光学记录介质，其中将反射光磁层施加到透明基底层。记录介质通过磁性和凹坑存储数据。磁存储数据和凹坑存储数据彼此叠加，使得记录介质上的每个点和区域都存储磁存储数据和凹坑存储数据。记录介质不被划分成用于磁存储数据和凹坑存储数据的分离区域，并且磁存储数据和凹坑存储数据可以通过单个光束同时读出。

3. 发明授权

US5325350A Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains 失效
标题翻译：拾取器，用于选择性地读写具有凹坑和磁畴的光记录介质
公开(公告)号：US5325350A
公开(公告)日：1994-06-28
申请号：US78346
申请日：1993-06-21
申请人： Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler , Heinz-Jorg Schroder
发明人： Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler , Heinz-Jorg Schroder
IPC分类号： G11B11/105 , G11B13/04 , G11B7/00
CPC分类号： G11B11/10597 , G11B11/10515 , G11B11/10532 , G11B11/10576 , G11B11/10595 , G11B13/04
摘要： The beam of light reflected from an optico-magnetic recorded medium is reflected by an optical pick-up onto one optical or another in accordance with the direction that the beam's plane of polarization is rotated in. A data signal is obtained from the difference in the photovoltages of the two photodetectors.
摘要翻译：从光磁记录介质反射的光束根据光束的偏振平面旋转的方向由光学拾取器反射到一个光学拾取器上。数据信号从两个光电探测器的光电压。

4. 发明授权

US5247507A Optical scanning system for a sinusoidal data track 失效
标题翻译：一种SINUSOIDAL数据跟踪的光学扫描系统
公开(公告)号：US5247507A
公开(公告)日：1993-09-21
申请号：US880940
申请日：1992-01-16
申请人： Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler
发明人： Yasuaki Morimoto , Friedhelm Zucker , Christian Buchler
IPC分类号： G11B7/007 , G11B7/09
CPC分类号： G11B7/0938 , G11B7/0904 , G11B7/24082
摘要： An optical scanning system for a compact disc having a sinusoidal data track radially meandering, at a selected frequency, about the axis of rotation of the disc includes a first laser beam for reading data from the data track. A +1 level laser beam and a -1 level laser beam respectively track the opposite edges of the data track and generate a tracking error signal. The +1 level laser beam and the -1 level laser beam are separated, with respect to the disc, by a distance equal to an odd integer multiple of one half the wavelength corresponding to the selected frequency. The +1 and -1 laser beams are not modulated by the sinusoidal data track and standard tracking circuitry can be used to track the data track.
摘要翻译：具有正弦数据轨道的光盘扫描系统，其以选定的频率径向曲折地围绕盘的旋转轴线包括用于从数据轨道读取数据的第一激光束。 +1级激光束和-1级激光束分别跟踪数据轨道的相对边缘并产生跟踪误差信号。 +1级激光束和-1级激光束相对于盘分离等于与所选频率对应的波长的一半的奇整数倍的距离。 +1和-1激光束不被正弦数据轨道调制，标准跟踪电路可用于跟踪数据轨道。

5. 发明授权

US5812519A ROM-RAM Disk 失效
标题翻译： ROM-RAM磁盘
公开(公告)号：US5812519A
公开(公告)日：1998-09-22
申请号：US647993
申请日：1996-09-20
申请人： Akira Kawamura , Yasuaki Morimoto , Friedhelm Zucker
发明人： Akira Kawamura , Yasuaki Morimoto , Friedhelm Zucker
IPC分类号： G11B7/00 , G11B7/007 , G11B7/14 , G11B7/30 , G11B11/105 , G11B13/04 , G11B19/02 , G11B19/20 , G11B19/247 , G11B19/28 , G11B20/12 , G11B7/24
CPC分类号： G11B7/0079 , G11B13/04 , G11B13/045 , G11B19/02 , G11B19/20 , G11B20/1252 , G11B7/14 , G11B11/10597 , G11B19/247 , G11B19/28 , G11B2020/1259 , G11B2220/211
摘要： The invention concerns a high storage capacity ROM-RAM disk and a process for reading and writing to the ROM-RAM disk. T he aim of the invention is to devise a ROM-RAM disk and a process making it possible to read ROM and RAM simultaneously, to read the ROM area and at the same time write to the RAM area and to provide the largest possible volume of memory. The invention comprises two alternative designs. In a first design a ROM-RAM disk contains an area having both ROM and RAM memory structures as of a certain radius or diameter, establishing therein, at a constant rotational speed, a scanning/writing speed which ensures a reading/separation of the data stored in the ROM-RAM structures. In a second design, the available storage area is taken up entirely by a ROM-RAM storage area, where RAM memory structures have a reduced data rate in order to form, a length of memory structures necessary for separating the data stored in the ROM-RAM storage area.
摘要翻译： PCT No.PCT / EP94 / 03869 Sec。 371日期：1996年9月20日 102（e）1996年9月20日PCT 1994年11月23日PCT公布。第WO95 / 15557号公报日期1995年6月8日本发明涉及高存储容量的ROM-RAM磁盘和用于读取和写入到ROM-RAM磁盘的过程。本发明的目的是设计一个ROM-RAM磁盘和一个使得可以同时读取ROM和RAM的过程，以读取ROM区域并同时写入RAM区域并提供最大可能的容量记忆。本发明包括两种替代设计。在第一设计中，ROM-RAM盘包含具有一定半径或直径的ROM和RAM存储器结构的区域，以恒定的转速建立扫描/写入速度，以确保数据的读取/分离存储在ROM-RAM结构中。在第二种设计中，可用的存储区域完全由ROM-RAM存储区域占用，其中RAM存储器结构具有降低的数据速率以形成用于分离存储在ROM-RAM中的数据所需的存储器结构的长度， RAM存储区。

6. 发明授权

US5822292A Multi beam track system and method for an optical memory 失效
标题翻译：多光束跟踪系统和光学存储器的方法
公开(公告)号：US5822292A
公开(公告)日：1998-10-13
申请号：US642324
申请日：1996-05-03
申请人： Nakao Akutsu , Yasuaki Morimoto , Yoshiharu Chikazawa , Akira Kawamura
发明人： Nakao Akutsu , Yasuaki Morimoto , Yoshiharu Chikazawa , Akira Kawamura
IPC分类号： G11B7/125 , G11B7/135 , G11B7/14 , G11B7/00 , G11B3/74
CPC分类号： G11B7/127 , G11B7/1356 , G11B7/14
摘要： A multi beam track system and method is used for the retrieving of information stored in optical memories like optical disks. The information carrying beams reflected on the surface of such a optical disk results in spots on the surface of a detector array. Because these beams are very close to each other, the resulting spots tend to overlap so that cross talk conditions between neighboring channels occur. As result the S/N ratio becomes worse. According to the present invention a plurality of laser beams arranged in a row is used, where the laser beams are linear polarized and the polarization of neighboring beams differ by 90.o slashed., i.e. neighboring laser beams have perpendicular linear polarization. After reflection on the surface of the optical disk the row of reflected laser beams is separated into two rows by an separating means which is polarization dependent so that beams are separated in space according to the polarization. Such a separator can be a polarizing beamsplitter or a birefringent prism crystal. As a result two spacially separated rows of laser beams are achieved, which can be detected by two separate detectors. As result no overlap between neighboring spots occurs on the surface of the detectors, resulting in the elimination of crosstalk.
摘要翻译：多光束跟踪系统和方法用于检索光存储器如光盘中存储的信息。在这种光盘的表面上反射的光束的信息导致检测器阵列表面上的斑点。由于这些光束彼此非常接近，所得到的光点倾向于重叠，从而发生相邻通道之间的串扰条件。结果，S / N比变差。根据本发明，使用排列成一行的多个激光束，其中激光束是线性偏振的，并且相邻光束的偏振度相差90 + 526，即相邻的激光束具有垂直的线偏振。在光盘表面上反射后，通过分离装置将反射激光束的行分离成两行，该分离装置是偏振相关的，使得根据极化在空间中分离光束。这种分离器可以是偏振分束器或双折射棱镜晶体。结果实现了两个空间分离的激光束行，其可以由两个单独的检测器检测。结果，在检测器的表面上没有出现相邻点之间的重叠，导致消除串扰。

7. 发明授权

US5375109A Magneto-optical recording and/or reproducing device 失效
标题翻译：磁光记录和/或再现装置
公开(公告)号：US5375109A
公开(公告)日：1994-12-20
申请号：US880939
申请日：1992-01-16
申请人： Yasuaki Morimoto , Friedhelm Zucker
发明人： Yasuaki Morimoto , Friedhelm Zucker
IPC分类号： G11B7/125 , G11B11/10 , G11B11/105 , G11B7/085
CPC分类号： G11B11/10576 , G11B11/10597
摘要： The two sets of data stored in pits and a magneto-optical layer of an optical recording/reproducing device can be read separately by the use of two lasers. The laser which reads/records the data stored in the pits operates at a wavelength .lambda..sub.1 approximately four times the depth of the pits. The laser which reads/records the data stored in the magneto-optical layer operates at a wavelength .lambda..sub.2 approximately twice the depth of the pits. The wavelength of the laser which reads the magneto-optical layer is adjusted and interference between the two signals is avoided.
摘要翻译：存储在凹坑中的两组数据和光学记录/再现装置的磁光层可以通过使用两个激光器分开读取。读取/记录存储在凹坑中的数据的激光器在距凹坑深度大约四倍的波长λ1下操作。读/记录存储在磁光层中的数据的激光器的波长λ2大约是凹坑深度的两倍。读取磁光层的激光器的波长被调整，并且避免了两个信号之间的干扰。

8. 发明授权

US5016233A Optical scanning arrangement for maintaining constant the light output of a laser beam or the laser current 失效
标题翻译：用于维持激光束的光输出或激光电流恒定的光学扫描装置
公开(公告)号：US5016233A
公开(公告)日：1991-05-14
申请号：US250726
申请日：1988-09-28
申请人： Yasuaki Morimoto , Heinz J. Schroder , Friedhelm Zucker
发明人： Yasuaki Morimoto , Heinz J. Schroder , Friedhelm Zucker
IPC分类号： G11B7/09 , G11B7/125
CPC分类号： G11B7/0917 , G11B7/0908
摘要： An optical scanning arrangement in which a laser beam is generated by a source with a monitor diode. The laser beam is focused on an optical recording medium. A summing amplifier has a first input connected to a source of a periodic signal. This source of periodic signal is also connected to a first input of a multiplier. The multiplier has an output connected to a second input of the summing amplifier. This summing amplifier has an output connected to a positioning device in the focusing circuit for the laser beam. This focusing circuit has an actual value which is supplied to a third input of the summing amplifier. The multiplier receives a laser controlling signal on a second input for the purpose of maintaining the light output of the laser beam at a constant level.
摘要翻译：一种光学扫描装置，其中激光束由具有监视二极管的源产生。激光束聚焦在光记录介质上。求和放大器具有连接到周期信号源的第一输入端。该周期信号源也连接到乘法器的第一输入端。乘法器具有连接到求和放大器的第二输入的输出。该求和放大器具有连接到用于激光束的聚焦电路中的定位装置的输出。该聚焦电路具有提供给加法放大器的第三输入端的实际值。为了将激光束的光输出保持在恒定水平，乘法器在第二输入端接收激光控制信号。

9. 发明授权

US4959821A Optical pick-up for scanning a magneto-optically recorded medium 失效
标题翻译：用于扫描磁光记录介质的光学拾取器
公开(公告)号：US4959821A
公开(公告)日：1990-09-25
申请号：US250728
申请日：1988-09-28
申请人： Yasuaki Morimoto , Friedhelm Zucker
发明人： Yasuaki Morimoto , Friedhelm Zucker
IPC分类号： G11B11/10 , G11B7/135 , G11B11/105
CPC分类号： G11B11/10532 , G11B11/10515 , G11B11/10543 , G11B11/10576
摘要： An optical pick-up for scanning a magneto-optically recorded disk in which the disk reflects a first principal beam onto a first photodetector. This first principal beam has a plane of polarization which is rotated in one direction. The recorded disk reflects a second principal beam onto a second photodetector. This second principal beam has a plane of polarization that is rotated in another direction. A data signal is generated from the difference between output photovoltages of the first and second photodetectors. A diffraction grating splits the main beam from a light emitting source, into the principal beams and into subsidiary beams. The main beam from the light emitting source is focused on the recorded disk through the diffraction grating. Auxiliary photovoltages are generated from the auxiliary beams, and these are subtracted for generating the data signal. The output voltage of the second photodetector has noise components that are in phase and which are generated by the main beam. This output voltage of the second photodetector contains also noise components of opposite phase that are generated by the subsidiary beams. The output signal of the first photodetector, on the other hand, has only noise components generated by the main beam.
摘要翻译：用于扫描磁光记录盘的光学拾取器，其中盘将第一主光束反射到第一光电检测器上。该第一主光束具有在一个方向上旋转的偏振平面。记录的盘将第二主光束反射到第二光电检测器上。该第二主光束具有在另一方向上旋转的偏振平面。根据第一和第二光电检测器的输出光电压之差产生数据信号。衍射光栅将主光束从发光源分裂成主光束并进入辅助光束。来自发光源的主光束通过衍射光栅聚焦在记录盘上。从辅助光束产生辅助光电压，并且减去这些光电压以产生数据信号。第二光电检测器的输出电压具有同相并由主光束产生的噪声分量。第二光电检测器的该输出电压还包含由辅助光束产生的相位相位的噪声分量。另一方面，第一光电检测器的输出信号仅具有由主光束产生的噪声分量。

10. 发明授权

US06507549B2 Device for reading from and/or writing to optical recording media 失效
标题翻译：用于从光学记录介质读取和/或写入光学记录介质的设备
公开(公告)号：US06507549B2
公开(公告)日：2003-01-14
申请号：US09734623
申请日：2000-12-12
申请人： Yasuaki Morimoto , Friedhelm Zucker , Christian Büchler
发明人： Yasuaki Morimoto , Friedhelm Zucker , Christian Büchler
IPC分类号： G11B700
CPC分类号： G11B7/1362 , G11B7/1353 , G11B7/1365
摘要： A device for reading from and/or writing to optical recording media, the device comprising a light source for producing a scanning beam, a photodetector for detecting the scanning beam reflected by the recording medium and a semi-transparent mirror arranged in the beam path for directing the scanning beam onto the recording medium and the reflected scanning beam onto the photodetector. An object of the invention is to improve a device of this type, in particular with regard to reducing the production costs. This object is achieved by the semi-transparent mirror being a plane-parallel plate with a layered structure, and a partially reflective layer being arranged between two small carrier plates.
摘要翻译：一种用于从光学记录介质读取和/或写入光学记录介质的装置，该装置包括用于产生扫描光束的光源，用于检测由记录介质反射的扫描光束的光电检测器和布置在光束路径中的半透明反射镜将扫描光束引导到记录介质上，将反射的扫描光束引导到光电探测器上。本发明的一个目的是改进这种类型的装置，特别是在降低生产成本方面。该目的通过半透明反射镜是具有层状结构的平面平行板，并且部分反射层布置在两个小载体板之间。

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