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1. 发明授权

US5001732A Track counter for optical disk 失效
标题翻译：磁盘跟踪计数器
公开(公告)号：US5001732A
公开(公告)日：1991-03-19
申请号：US458367
申请日：1989-12-28
申请人： Masaru Nomura , Hirotsugu Matoba , Toshihisa Deguchi , Shigeo Terashima
发明人： Masaru Nomura , Hirotsugu Matoba , Toshihisa Deguchi , Shigeo Terashima
IPC分类号： G11B7/085 , G11B21/08
CPC分类号： G11B7/08541
摘要： The track counter for optical disk in accordance with the present invention, that counts the number of tracks a light beam passes upon when an optical head moves over an optical disk in the radial direction, comprises a passage signal generating circuit for detecting based on a reflected light of the light beam from the optical disk, that the light beam passed upon a track and for releasing a passage signal on that occasion, a counter that counts the passage signals released by the passage signal generating circuit, a count suspending circuit for forecasting that the light beam will pass upon a specific position of a track and for suspending the count by the aforementioned counter of the passage signals during this forecasted period, and a count value compensating circuit for assuming, when the count of the passage signals is suspended by the count suspending circuit, the number of tracks the light beam passed upon during that period, and for adding this assumed number to the count value of the counter. This track counter for optical disk is arranged such that it is able to count accurately the number of tracks the light beam passed upon even when the light beam passed upon the ID sections of a track, or when the passage upon a track cannot be detected because of a scratch on the surface of the disk or the like. Thereby, when the optical head moves and slides, the access speed may be enhanced.

2. 发明授权

US5301174A Optical disk recording and reproducing apparatus 失效
标题翻译：光盘记录和再现装置
公开(公告)号：US5301174A
公开(公告)日：1994-04-05
申请号：US550973
申请日：1990-07-11
申请人： Hirotsugu Matoba , Masaru Nomura , Toshihisa Deguchi , Shigeo Terashima
发明人： Hirotsugu Matoba , Masaru Nomura , Toshihisa Deguchi , Shigeo Terashima
IPC分类号： G11B7/085 , G11B7/00
CPC分类号： G11B7/08529 , G11B7/08517
摘要： An optical disk recording and reproducing apparatus in which during coarse access, an adjustable target speed is obtained using a speed offset value stored in a speed offset memory. The speed offset value being determined between a plurality of reference velocities and a plurality of adjustable offset velocity values. The system also performs fine access within a defined distance from the optical head to the designated track upon completion of the coarse access mode. The speed offset values are continually updated by to improve the accuracy of the coarse access operation saving overall access time.
摘要翻译：一种光盘记录和再现装置，其中在粗略访问期间，使用存储在速度偏移存储器中的速度偏移值来获得可调节的目标速度。速度偏移值在多个参考速度和多个可调偏移速度值之间确定。在粗略访问模式完成时，该系统还在从光头到指定轨迹的限定距离内执行精细的访问。速度偏移值不断更新，以提高粗略访问操作的精度，从而节省总体访问时间。

3. 发明授权

US5331623A Optical retrieval system for encoding pit angular data and optical recording element therefor 失效
标题翻译：用于编码凹坑角度数据的光学检索系统及其光学记录元件
公开(公告)号：US5331623A
公开(公告)日：1994-07-19
申请号：US948098
申请日：1992-09-21
申请人： Hirotsugu Matoba , Toshihisa Deguchi , Shigeo Terashima , Hideyoshi Yamaoka
发明人： Hirotsugu Matoba , Toshihisa Deguchi , Shigeo Terashima , Hideyoshi Yamaoka
IPC分类号： G11B7/00 , G11B7/004 , G11B7/005 , G11B7/013
CPC分类号： G11B7/24085 , G11B7/005 , G11B7/013
摘要： In the optical recording element of the invention, alignments of long thin pits inclined in various directions with respect to the track direction are formed on the tracks and information is recorded therein according to the different inclines of the pits, thereby performing higher-density and larger-volume recording without reducing the spacing between each pit and the track pitch. The invention also discloses an optical data retrieval system for use with the above optical recording element, which scans the pit alignments with a laser beam spot, detects the inclines of the pits by obtaining the distribution of the intensity of reflected light which is caused by light diffraction at the pits, and plays back information in accordance with the inclines. Therefore, not only can the substantially same structure as that of a standard type optical data retrieval system be applied to the invention without making any complicated change, but also cross-talk is less likely to be produced in the read out signals.
摘要翻译：在本发明的光记录元件中，在轨道上形成在各个方向上相对于轨道方向倾斜的长细孔的排列，并且根据凹坑的不同斜度记录信息，从而执行更高密度和更大的 - 体积记录，而不减少每个凹坑与轨道间距之间的间距。本发明还公开了一种与上述光学记录元件一起使用的光学数据检索系统，其利用激光束点扫描凹坑对准，通过获得由光引起的反射光强度的分布来检测凹坑的倾斜度在凹坑处进行衍射，并根据倾斜回放信息。因此，不仅可以将本质上与标准型光数据检索系统基本相同的结构应用于本发明，而且不会发生任何复杂的变化，而且在读出信号中也不太可能产生串扰。

4. 发明授权

US5200941A Optical retrieval system for encoding pit angular data and optical recording element thereof 失效
标题翻译：用于编码PIT角度数据的光学检索系统及其光学记录元件
公开(公告)号：US5200941A
公开(公告)日：1993-04-06
申请号：US453927
申请日：1989-12-19
申请人： Hirotsugu Matoba , Toshihisa Deguchi , Shigeo Terashima , Hideyoshi Yamaoka
发明人： Hirotsugu Matoba , Toshihisa Deguchi , Shigeo Terashima , Hideyoshi Yamaoka
IPC分类号： G11B7/00 , G11B7/004 , G11B7/005 , G11B7/013
CPC分类号： G11B7/24085 , G11B7/005 , G11B7/013
摘要： In the optical recording element of the invention, alignments of long thin pits inclined in various directions with respect to the track direction are formed on the tracks and information is recorded therein according to the different inclines of the pits, thereby performing higher-density and larger-volume recording without reducing the spacing between each pit and the track pitch. The invention also discloses an optical data retrieval system for use with the above optical recording element, which scans the pit alignments with a laser beam spot, detects the inclines of the pits by obtaining the distribution of the intensity of reflected light which is caused by light diffraction at the pits, and plays back information in accordance with the inclines. Therefore, not only can the substantially same structure as that of a standard type optical data retrieval system be applied to the invention without making any complicated change, but also cross-talk is less likely to be produced in the read out signals.

5. 发明授权

US4849953A Tracking circuit for an optical information recording and reproducing apparatus 失效
标题翻译：光信息记录和再现装置的跟踪电路
公开(公告)号：US4849953A
公开(公告)日：1989-07-18
申请号：US924262
申请日：1986-10-29
申请人： Masaru Nomura , Toshihisa Deguchi , Shigeo Terashima
发明人： Masaru Nomura , Toshihisa Deguchi , Shigeo Terashima
IPC分类号： G11B7/085 , G11B7/09 , G11B7/095
CPC分类号： G11B7/0956 , G11B7/08517 , G11B7/0901 , G11B7/094 , G11B7/0948
摘要： An optical information recording and reproducing apparatus comprising: a circuit for focusing a light beam on a recording track of an optical disk having tracks formed spirally or concentrically; a circuit for recording the information on a track corresponding to the focused position of light beam on the track or reproducing information from on the track; a tracking control circuit for generating a tracking control signal for matching the focused position of the light beam with the track; a circuit for detecting deviation of the focused position of the light beam from the track and generating a deviation signal corresponding to the focused position of the light beam; a holding circuit for holding the deviation signal; a subtracting circuit for subtracting the held deviation signal from the tracking control signal; and a circuit for moving an objective lens for controlling the focused position of the light beam in response the output signal from the subtracting circuit.
摘要翻译：一种光信息记录和再现装置，包括：用于将光束聚焦在具有螺旋或同心的轨道的光盘的记录轨道上的电路; 用于将信息记录在与轨道的聚焦位置对应的轨道上或从轨道上再现信息的电路; 跟踪控制电路，用于产生用于将光束的聚焦位置与轨道匹配的跟踪控制信号; 用于检测来自光道的光束的聚焦位置的偏离并产生对应于光束的聚焦位置的偏差信号的电路; 用于保持偏差信号的保持电路; 减法电路，用于从跟踪控制信号中减去保持的偏差信号; 以及用于响应于来自减法电路的输出信号移动用于控制光束的聚焦位置的物镜的电路。

6. 发明授权

US5274617A Method and device for data management in an optical recording medium 失效
标题翻译：光记录介质中数据管理的方法和装置
公开(公告)号：US5274617A
公开(公告)日：1993-12-28
申请号：US528370
申请日：1990-05-25
申请人： Shigeo Terashima , Toshihisa Deguchi , Kunio Kojima , Shigema Maeda
发明人： Shigeo Terashima , Toshihisa Deguchi , Kunio Kojima , Shigema Maeda
IPC分类号： G11B7/004 , G11B7/007 , G11B11/105 , G11B19/04 , G11B27/034 , G11B27/036 , G11B27/11 , G11B27/32 , G11B27/34 , G11B27/36 , G11B15/04 , G11B7/00
CPC分类号： G11B27/11 , G11B11/10502 , G11B11/10595 , G11B19/04 , G11B27/034 , G11B27/036 , G11B27/329 , G11B27/34 , G11B27/36 , G11B7/004 , G11B7/007 , G11B2220/2525 , G11B2220/65
摘要： A recording and reproducing device, which records and reproduces information on and from a rewritable recording medium having absolute addresses and including an information recording area wherein information entered from external devices is recorded and a Table of Contents area wherein additional address information with respect to the information recorded in the information recording area is recorded. The TOC area contains the absolute addresses of the recording positions of each information recorded in the information recording area. A display section graphically and independently displays the recorded and unrecorded ranges of the information recording area according to the absolute addresses recorded in the TOC area with respect to the recording positions of each piece of information. A warning device alerts the user that a position on the disc is occupied by referring TOC area when it is instructed to record new information in the position of the information recording area where another information has already been recorded.
摘要翻译：一种记录和再现设备，其记录和重放具有绝对地址的可重写记录介质上的信息，并且包括其中记录了从外部设备输入的信息的信息记录区域，以及一个目录区域，其中关于该信息的附加地址信息记录在信息记录区中的记录。 TOC区域包含记录在信息记录区域中的每个信息的记录位置的绝对地址。显示部分根据相对于每条信息的记录位置记录在TOC区域中的绝对地址图形地和独立地显示信息记录区域的记录和未记录的范围。当指示在记录了其他信息的信息记录区域的位置记录新信息时，警告装置通知引导TOC区域来警告用户盘上的位置。

7. 发明授权

US5196978A Cartridge case 失效
标题翻译：弹壳
公开(公告)号：US5196978A
公开(公告)日：1993-03-23
申请号：US48768
申请日：1987-05-12
申请人： Junichi Washo , Kenji Ohta , Shigeo Terashima , Masahiro Horii , Takao Hyuga , Toshihisa Deguchi
发明人： Junichi Washo , Kenji Ohta , Shigeo Terashima , Masahiro Horii , Takao Hyuga , Toshihisa Deguchi
IPC分类号： G11B23/03
CPC分类号： G11B23/0308 , G11B23/0302
摘要： A cartridge case for containing a disk-shaped recording medium has a shutter attached slidably thereon. The shutter is U-shaped sectionally and the edge sections where the shutter contacts the surface of the cartridge case are rounded so that friction therebetween is reduced when the shutter slides on the surface of the cartridge case. The cartridge case is provided with a notch and an indentation on at least one of its side surfaces corresponding to protruding pieces in the device into which the cartridge case is inserted such that a sensor in the device can be activated only when a cartridge case compatible with the device is inserted and these protruding pieces properly engage with the notch and the indentation on the cartridge case.
摘要翻译：用于容纳盘形记录介质的盒壳具有可滑动地附接在其上的挡板。快门是U形截面的，并且快门接触盒壳体的表面的边缘部分是圆形的，使得当快门在盒壳体的表面上滑动时，其间的摩擦力减小。盒壳在其至少一个侧表面上的至少一个侧表面上设有凹口和凹槽，该凹槽和凹槽对应于插入盒壳体的装置中的突出件，使得只有在与盒壳体兼容的盒壳体中才能激活装置中的传感器该装置被插入，并且这些突出部件与卡盘盒上的凹口和凹口适当接合。

8. 发明授权

US5093820A Optical disk recording/reproducing device 失效
标题翻译：光盘记录/再现设备
公开(公告)号：US5093820A
公开(公告)日：1992-03-03
申请号：US561822
申请日：1990-08-02
申请人： Shigemi Maeda , Hiroshi Fuji , Shigeo Terashima , Toshihisa Deguchi
发明人： Shigemi Maeda , Hiroshi Fuji , Shigeo Terashima , Toshihisa Deguchi
IPC分类号： G11B7/004 , G11B19/247 , G11B27/034 , G11B27/036 , G11B27/10 , G11B27/11 , G11B27/19 , G11B27/24 , G11B27/32 , H04N5/85 , H04N5/92
CPC分类号： H04N5/9202 , G11B19/247 , G11B27/036 , G11B27/105 , G11B27/11 , G11B27/24 , G11B27/329 , G11B7/004 , H04N5/85 , G11B2220/216 , G11B2220/218 , G11B2220/2525 , G11B2220/2545 , G11B2220/65 , G11B27/034
摘要： An optical disk recording/reproducing device in accordance with the present invention has a controller that, during recording, performs the rotation control of the optical disk in Constant Linear Velocity according to reproduced signals of pre-recorded information that was pre-recorded on the optical disk, during reproduction, performs the rotation control according to reproduced signals of recorded information, and when the rotation control based on the reproduced signals of the recorded information is infeasible, switches the rotation control and performs the rotation control based on the reproduced signals of the pre-recorded information during reproduction also. As a result, a suitable and appropriate CLV control may be executed during recording and during reproduction.

9. 发明授权

US4920437A Disc clamping device 失效
标题翻译：圆盘夹紧装置
公开(公告)号：US4920437A
公开(公告)日：1990-04-24
申请号：US29610
申请日：1987-03-25
申请人： Junichi Washo , Shigeo Terashima , Toshihisa Deguchi , Masahiro Horii , Takao Hyuga , Kenji Ohta
发明人： Junichi Washo , Shigeo Terashima , Toshihisa Deguchi , Masahiro Horii , Takao Hyuga , Kenji Ohta
IPC分类号： G11B17/028
CPC分类号： G11B17/0284
摘要： A disc clamping device comprises a disc base on which to set a disc and which has a spindle for rotating the disc, and a disc holding member movable in the axial direction of the spindle. The disc holding member comprises a portion for pressing a disc with a centering hub and a portion to be engaged with the center hole of a disc with no centering hub.
摘要翻译：盘夹紧装置包括盘基座，用于设置盘并具有用于旋转盘的主轴的盘基座和可沿主轴的轴向移动的盘保持构件。盘保持构件包括用于按照具有定心毂的盘的部分和与没有定心毂的盘的中心孔接合的部分。

10. 发明授权

US5546364A Magneto-optical memory apparatus utilizing edges or recording mark to manage data 失效
标题翻译：利用记录标记的边缘来管理数据的磁光存储装置
公开(公告)号：US5546364A
公开(公告)日：1996-08-13
申请号：US311452
申请日：1994-09-26
申请人： Hiroshi Fuji , Toshihisa Deguchi , Kunio Kojima , Takeshi Yamaguchi , Shigeo Terashima , Akira Takahashi , Kenji Ohta
发明人： Hiroshi Fuji , Toshihisa Deguchi , Kunio Kojima , Takeshi Yamaguchi , Shigeo Terashima , Akira Takahashi , Kenji Ohta
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/013 , G11B11/105 , G11B13/04 , G11B7/12 , G11B11/12
CPC分类号： G11B7/24085 , G11B11/10504 , G11B11/10515 , G11B11/10528 , G11B7/0045 , G11B7/005 , G11B7/013
摘要： A magneto-optical memory apparatus for enhancing the recording density of a magneto-optical recording medium, thereby to increase its recording capacity. The magneto-optical recording medium having recording marks, each having two ends in which information is recorded. The apparatus also includes an optical head arranged such that at the time of recording onto the magneto-optical recording medium, the recording marks are recorded such that the ends of each recording mark correspond to a second code of digital information composed of two different types of codes; at the time of reproduction, a light beam having a condensing spot is projected to the magneto-optical recording medium and, when a reproduction light containing reproduction information is entered to the optical head from the magneto-optical recording medium, a reproduction signal is supplied; and when the light beam is projected to a recording mark, an information pulse corresponding to the second code is generated in the reproduction signal, only when the reproduction light from the recording mark interferes with the reproduction light from the non-marking part; and a signal detector circuit for detecting the information pulse in the reproduction signal obtained from the optical head and for converting the reproduction signal into a digital reproduction signal.
摘要翻译：一种用于增强磁光记录介质的记录密度的磁光存储装置，从而提高其记录容量。具有记录标记的磁光记录介质，每个记录标记具有记录信息的两端。该装置还包括一个光学头，其被配置为使得在记录到磁光记录介质上时，记录标记被记录为使得每个记录标记的端部对应于由两种不同类型的代码; 在再现时，将具有聚光点的光束投影到磁光记录介质，并且当从磁光记录介质将包含再现信息的再现光输入到光头时，提供再现信号 ; 并且当光束投射到记录标记时，只有当来自记录标记的再现光干扰来自非标记部分的再现光时，才在再现信号中产生与第二代码相对应的信息脉冲; 以及信号检测器电路，用于检测从光头获得的再现信号中的信息脉冲，并将再现信号转换成数字再现信号。

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