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1. 发明授权

US5828649A Magneto-optical memory element 失效
标题翻译：磁光存储元件
公开(公告)号：US5828649A
公开(公告)日：1998-10-27
申请号：US447738
申请日：1995-05-23
申请人： Kenji Ohta , Yoshikazu Fujii , Tetuya Inui , Toshihisa Deguchi , Shigemi Maeda
发明人： Kenji Ohta , Yoshikazu Fujii , Tetuya Inui , Toshihisa Deguchi , Shigemi Maeda
IPC分类号： G11B7/007 , G11B7/013 , G11B7/09 , G11B7/24 , G11B11/10 , G11B11/105
CPC分类号： G11B11/10597 , G11B11/10563 , G11B11/10565 , G11B11/10578 , G11B11/10582 , G11B11/10584 , G11B7/0938 , G11B7/24 , G11B7/24085 , G11B7/007
摘要： An optical memory element includes a guide track groove portion and address signal pit portion for indicating the address of the guide track groove. The address signal pit portion has a pit width narrower than the groove width of the guide track groove portion.
摘要翻译：光学存储元件包括用于指示导轨槽的地址的导轨槽部分和地址信号凹坑部分。地址信号凹坑部具有比导轨槽部的槽宽窄的凹坑宽度。

2. 发明授权

US5365501A Information recording and reproducing device 失效
标题翻译：信息记录和再现装置
公开(公告)号：US5365501A
公开(公告)日：1994-11-15
申请号：US853863
申请日：1992-03-20
申请人： Hiroshi Fuji , Takeshi Yamaguchi , Toshihisa Deguchi
发明人： Hiroshi Fuji , Takeshi Yamaguchi , Toshihisa Deguchi
IPC分类号： G11B11/10 , G11B7/00 , G11B7/004 , G11B7/0055 , G11B11/105 , G11B20/10 , G11B27/19 , G11B27/30 , G11B17/32
CPC分类号： G11B11/1053 , G11B11/10597 , G11B20/10 , G11B27/19 , G11B27/3027 , G11B7/004
摘要： An information recording and reproducing device records, erases and reproduces information on and from a memory device. The memory device has pre-format sections. The information recording and reproducing device includes a pre-recorded area detection circuit for detecting a pre-recorded area having information predeterminately recorded and located on the memory device and timing control circuits for providing timing control of an information recording, erasing or reproducing operation according to a pre-recorded area detecting signal released from the pre-recorded area detection circuit, thereby enabling each timing of recording, reproducing, or erasing operation is accurately determined. The timing control may be performed according to both of the pre-recorded area detecting signal of the present invention and the conventional synchronization detection signal. In that case, if an error should occur in the synchronization detection signals, since the pre-recorded area detecting signal is released every time pre-recorded information for a sector mark or the like is reproduced, an accurate timing control without time lag is achieved according to the pre-recorded area detecting signals.
摘要翻译：信息记录和再现设备在存储设备上记录，擦除和再现信息。存储器设备具有预格式化部分。信息记录和再现装置包括一个预先记录的区域检测电路，用于检测具有预先记录和定位在存储装置上的信息的预先记录的区域和定时控制电路，用于提供根据以下的信息记录，擦除或再现操作的定时控制从预记录区域检测电路释放的预先记录区域检测信号，从而能够准确地确定记录，再现或擦除操作的每个定时。可以根据本发明的预先记录的区域检测信号和传统的同步检测信号来执行定时控制。在这种情况下，如果在同步检测信号中发生错误，则由于每当再现用于扇区标记等的预先记录的信息被再现时，预先记录的区域检测信号被释放，所以实现了没有时间延迟的准确的定时控制根据预先记录的区域检测信号。

3. 发明授权

US5341362A Optical memory device having guide tracks shaped for increasing the quality of information signals 失效
标题翻译：具有引导轨道的光存储器件，其形状用于提高信息信号的质量
公开(公告)号：US5341362A
公开(公告)日：1994-08-23
申请号：US978039
申请日：1992-11-18
申请人： Yoshikazu Fujii , Tetsuya Inui , Toshihisa Deguchi , Kenji Ohta
发明人： Yoshikazu Fujii , Tetsuya Inui , Toshihisa Deguchi , Kenji Ohta
IPC分类号： G11B7/013 , G11B11/105 , G11B7/24 , G11B13/04
CPC分类号： G11B7/24085 , G11B11/10565 , G11B11/10578 , G11B11/10584
摘要： An optical memory device comprising a substrate and guide tracks having a depth of .lambda./8n or less formed on said substrate, wherein .lambda. is the wavelength of laser light used for the optical memory device, and n is the refraction index of the guide track portion of the substrate.
摘要翻译：一种光学存储器件，包括衬底和在所述衬底上形成的深度为λ/ 8n或更小的导轨，其中λ是用于光存储器件的激光的波长，n是导轨部分的折射率的基底。

4. 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。

5. 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。

6. 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.

7. 发明授权

US5170389A Semiconductor laser driving circuit with control circuit power voltage monitor for preventing inadvertent recording 失效
标题翻译：具有控制电路电压监测器的半导体激光器驱动电路，用于防止无法记录
公开(公告)号：US5170389A
公开(公告)日：1992-12-08
申请号：US538340
申请日：1990-06-15
申请人： Tomiyuki Numata , Kunio Kojima , Toshihisa Deguchi , Shigeo Terashima
发明人： Tomiyuki Numata , Kunio Kojima , Toshihisa Deguchi , Shigeo Terashima
IPC分类号： G11B7/125 , H01S5/068
CPC分类号： G11B7/126 , H01S5/06825
摘要： The invention provides an improvement of the conventional laser driving circuit mainly including a control logic circuit, a reproducing power producing circuit, and a recording power producing circuit for preventing a recording film of a disk from being damaged by a laser in a reproducing mode. The improved respect is addition of a voltage monitoring circuit and a bypass transistor for an abnormal signal. The voltage monitoring circuit monitors a voltage drop caused in the control logic circuit and supplies a voltage abnormality indicating signal, thereby causing the bypass transistor to be conductive for allowing the abnormal signal to be flown therethrough.

8. 发明授权

US5008888A Semiconductor laser driving apparatus 失效
标题翻译：半导体激光驱动装置
公开(公告)号：US5008888A
公开(公告)日：1991-04-16
申请号：US384213
申请日：1989-07-21
申请人： Tomiyuki Numata , Takashi Iwaki , Kunio Kojima , Toshihisa DeGuchi
发明人： Tomiyuki Numata , Takashi Iwaki , Kunio Kojima , Toshihisa DeGuchi
IPC分类号： G11B11/10 , G11B7/125 , G11B11/105 , H01S5/06 , H01S5/062 , H01S5/0683
CPC分类号： G11B7/126 , H01S5/06209 , H01S5/0617 , H01S5/0683
摘要： A semiconductor laser driving apparatus for supplying a driving current to a semiconductor laser device of an optical disk recording and reproducing system, the level of which is changed to adjust the optical output of the laser device to one of plural levels corresponding to positions of an optical disk which is irradiated by a laser beam emitted from the laser device. The apparatus comprises: a current source for sequentially supplying plural reference driving currents having a different predetermined level to the laser device; a monitor for detecting the optical output level of the laser device when each of the reference driving currents is supplied to the laser device; a setting device for setting several optimum values on the basis of the detected optical output levels; a selecting device for selecting one of the several optimum values, depending upon the position of an optical disk where is to be irradiated by a laser beam; and said current source for supplying a driving current for recording information on an optical disk, to the laser device, the level of the driving current corresponding to the selected optimum value.

9. 发明授权

US4939710A Optical magnetic memory device utilizing non-recorded portions of recording medium to represent data 失效
标题翻译：利用记录介质的非记录部分来表示数据的光磁存储器件
公开(公告)号：US4939710A
公开(公告)日：1990-07-03
申请号：US214930
申请日：1988-07-01
申请人： Hiroshi Fuji , Shigemi Maeda , Takeshi Yamaguchi , Toshihisa Deguchi , Shozou Kobayashi
发明人： Hiroshi Fuji , Shigemi Maeda , Takeshi Yamaguchi , Toshihisa Deguchi , Shozou Kobayashi
IPC分类号： G11B11/105
CPC分类号： G11B11/10515 , G11B11/10506 , G11B11/10597
摘要： An optical magnetic memory device includes an optical magnetic recording medium such as a disc having recording magnetic film at least on one side thereof and initialized in a certain direction in advance, a recording section for recording data in such a manner that data-recorded portions and non-recorded portions are alternately formed, and a reproducing section for reproducing data from the recording medium by detecting the interval between the recorded or non-recorded portions. The reproducing section comprises a detector for detecting positive and negative peaks of signals reproduced from the recorded or non-recorded portion and a selector for selecting either of the detection outputs from the detector according to a control signal.
摘要翻译：一种光磁存储器件包括：光磁记录介质，例如至少在其一侧具有记录磁膜的光磁记录介质，并且预先沿某个方向初始化;记录部分，用于以数据记录部分和交替地形成非记录部分，以及再现部分，用于通过检测记录或非记录部分之间的间隔从记录介质再现数据。再现部分包括检测器，用于检测从记录或非记录部分再现的信号的正峰值和负峰值，以及选择器，用于根据控制信号选择来自检测器的检测输出。

10. 发明授权

US4864125A Extra magnetic field positioning apparatus 失效
标题翻译：额外的磁场定位装置
公开(公告)号：US4864125A
公开(公告)日：1989-09-05
申请号：US104968
申请日：1987-10-06
申请人： Hisashi Minami , Toshihisa Deguchi , Masaru Nomura , Takao Hyuga
发明人： Hisashi Minami , Toshihisa Deguchi , Masaru Nomura , Takao Hyuga
IPC分类号： H02P3/08 , G11B11/10 , G11B11/105
CPC分类号： G11B11/1056
摘要： An extra magnetic field positioning apparatus includes a motor which does not have stable points for defining the extra magnetic field. An encoder is provided which is rotated with the motor and individually has the information which indicates rotating displacement and the information which indicates rotating position. Further, a sensor detects the information indicating the rotating position recorded on the encoder, and another sensor detects the information indicating the rotating displacement recorded on the encoder.
摘要翻译：一种额外的磁场定位装置包括不具有用于限定额外磁场的稳定点的电动机。提供与电动机一起旋转的编码器，并且分别具有指示旋转位移的信息和指示旋转位置的信息。此外，传感器检测指示记录在编码器上的旋转位置的信息，并且另一个传感器检测指示记录在编码器上的旋转位移的信息。

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