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21. 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。

22. 发明授权

US5278814A Apparatus for recording and reproducing information on and from an optical disk 失效
标题翻译：用于在光盘上记录和再现信息的装置
公开(公告)号：US5278814A
公开(公告)日：1994-01-11
申请号：US508200
申请日：1990-04-12
申请人： Toshihisa Deguchi , Hiroshi Fuji , Shigeo Terashima
发明人： Toshihisa Deguchi , Hiroshi Fuji , Shigeo Terashima
IPC分类号： G11B7/00 , G11B7/004 , G11B7/005 , G11B7/007 , G11B7/09 , G11B20/12 , G11B20/14 , G11B21/10 , G11B27/30
CPC分类号： G11B7/0079 , G11B20/1258 , G11B20/1403 , G11B27/30 , G11B7/004 , G11B2020/1282 , G11B7/0053 , G11B7/00745
摘要： An apparatus for recording and reproducing information on and from an optical disk is disclosed in which at least one optical beam and a reference clock signal are used. The optical disk comprises recording tracks which are divided into a plurality of blocks and concentrically arranged along the radial direction. The apparatus comprises: a block judging unit for judging one of the blocks that the one block is currently impinged by the optical beam; a clock signal generator for generating a plurality of clock signals which are different in frequency from each other; and a clock signal selecting unit for selecting one of the clock signals as the reference clock signal, on the basis of the judgement of the block judging unit.
摘要翻译：公开了一种用于在光盘上记录和再现信息的装置，其中使用至少一个光束和参考时钟信号。光盘包括被分成多个块并且沿径向同心布置的记录轨道。该装置包括：块判断单元，用于判断该块当前被光束照射的块之一; 时钟信号发生器，用于产生频率不同的多个时钟信号; 以及时钟信号选择单元，用于基于块判断单元的判断来选择时钟信号之一作为参考时钟信号。

23. 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.

24. 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.

25. 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。

26. 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。

27. 发明授权

US5361247A Information recording and reproducing device with reproduction and automatic gain control circuit 失效
标题翻译：具有再现和自动增益控制电路的信息记录和再现装置
公开(公告)号：US5361247A
公开(公告)日：1994-11-01
申请号：US581218
申请日：1990-09-11
申请人： Hiroshi Fuji , Toshihisa Deguchi , Shigeo Terashima , Takeshi Yamaguchi
发明人： Hiroshi Fuji , Toshihisa Deguchi , Shigeo Terashima , Takeshi Yamaguchi
IPC分类号： G11B7/005 , G11B20/10 , G11B20/12 , G11B7/00
CPC分类号： G11B7/005 , G11B20/10009 , G11B20/1217
摘要： An information recording and reproducing device having an automatic gain control device wherein its amplification degree is adjusted according to an AGC voltage varying with an amplitude of a reproduced signal. The automatic gain control device has a holding circuit which holds the AGC voltage in each of recording and erasing operations, and also holds the AGC voltage in reproducing an un-recorded area of information. The AGC voltage is also used for determining an optimum recording condition for a recording medium. Instead of the holding circuit, by installing a limiter circuit for limiting an amplitude of a reproduced signal, and by the use of transient response of the reproduced signal due to an coupling situated before the limiter circuit, an appropriate amplification degree can also be obtained in the automatic gain control device. Further, the limiter circuit which is disposed at a stage before a reproduction circuit and also before a capacitor having the ac coupling, may restrain influence of the transient response of the ac coupling given on the reproduced signal, thereby making it possible to reproduce a signal with small amplitude immediately after recording or erasing operation.
摘要翻译：一种具有自动增益控制装置的信息记录和再现装置，其中根据以再现信号的幅度变化的AGC电压来调节其放大度。自动增益控制装置具有在每次记录和擦除操作中保持AGC电压的保持电路，并且还保持AGC电压再现未记录的信息区域。 AGC电压也用于确定记录介质的最佳记录条件。代替保持电路，通过安装用于限制再现信号的幅度的限制电路，并且由于由于位于限幅器电路之前的耦合而使用再现信号的瞬态响应，也可以获得适当的放大度自动增益控制装置。此外，设置在再现电路之前的阶段以及具有交流耦合的电容器之前的限幅器电路可以抑制对再现信号给出的交流耦合的瞬态响应的影响，从而可以再现信号在记录或擦除操作后立即具有小幅度。

28. 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。

29. 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。

30. 发明授权

US5377167A Recording/reproducing device 失效
标题翻译：记录/再现装置
公开(公告)号：US5377167A
公开(公告)日：1994-12-27
申请号：US122172
申请日：1993-09-17
申请人： Shigemi Maeda , Shigeo Terashima
发明人： Shigemi Maeda , Shigeo Terashima
IPC分类号： G11B11/10 , G11B7/013 , G11B11/105 , G11B27/02 , G11B27/031 , G11B27/034 , G11B27/036 , G11B27/10 , G11B27/11 , G11B27/30 , G11B27/32 , G11B27/34 , G11B27/36 , G11B7/00
CPC分类号： G11B27/034 , G11B11/105 , G11B11/10563 , G11B11/10595 , G11B27/036 , G11B27/105 , G11B27/11 , G11B27/329 , G11B27/36 , G11B7/24085 , G11B2220/216 , G11B2220/2525 , G11B2220/2529 , G11B2220/2545 , G11B2220/65 , G11B2220/913 , G11B27/031 , G11B27/3063
摘要： A recording/reproducing device for recording and reproducing on a rewritable recording medium which comprises absolute addresses, a sound information recording region for recording sound information entered thereto from outside and a TOC area for recording additional information on the sound information recorded in the sound information recording region. The device includes an optical head as well as a magnetic coil for recording silencing information or fading information in the TOC area, each of which respectively specifies that a desired range in the sound information recording region should be erased or a fade-in/fade-out operation adjacent to the recording start/end position of desired sound information should be executed in reproducing sound information in the sound information region, a TOC memory wherein the silencing information or the fading information read from the TOC area is stored when the recording medium is placed in the device, and a muting circuit which performs the silencing operation within the range specified by the silencing information stored in the TOC memory or a fading circuit which performs the fade-in/fade-out operation according to the fading information stored in the TOC memory.
摘要翻译：一种用于在包括绝对地址的可重写记录介质上记录和再现的记录/再现装置，用于记录从外部输入的声音信息的声音信息记录区域和用于记录记录在声音信息记录中的声音信息的附加信息的TOC区域地区。该装置包括光头以及用于在TOC区域中记录消音信息或衰落信息的磁线圈，其中每个分别指定声音信息记录区域中的期望范围应被擦除或淡入/淡出 - 应在声音信息区域的再现声音信息中执行与所需声音信息的记录开始/结束位置相邻的输出操作，其中当记录介质是从存储信息或从TOC区读取的衰落信息时存储的TOC存储器放置在该设备中的静音电路，以及静音电路，其在由存储在TOC存储器中的消音信息指定的范围内进行消音操作，或者根据存储在该存储器中的衰落信息执行淡入/淡出操作的衰落电路 TOC记忆

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