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1. 发明授权

US5886969A High-density information recording/reproducing method 失效
标题翻译：高密度信息记录/再现方法
公开(公告)号：US5886969A
公开(公告)日：1999-03-23
申请号：US976011
申请日：1997-11-21
申请人： Takeshi Maeda , Hisataka Sugiyama , Hiroyuki Awano , Harukazu Miyamoto , Keikichi Andoo , Kouichirou Wakabayashi , Atsushi Saito , Takeshi Shimano , Junko Ushiyama , Osamu Komoda , Hideki Saga
发明人： Takeshi Maeda , Hisataka Sugiyama , Hiroyuki Awano , Harukazu Miyamoto , Keikichi Andoo , Kouichirou Wakabayashi , Atsushi Saito , Takeshi Shimano , Junko Ushiyama , Osamu Komoda , Hideki Saga
IPC分类号： G11B7/004 , G11B7/007 , G11B7/013 , G11B7/085 , G11B7/09 , G11B7/13 , G11B7/135 , G11B7/14 , G11B11/105 , G11B20/14 , G11B7/00
CPC分类号： B82Y10/00 , G11B11/10502 , G11B11/10545 , G11B11/10584 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10287 , G11B20/1037 , G11B20/10509 , G11B7/004 , G11B7/00745 , G11B7/08529 , G11B7/0901 , G11B7/0938 , G11B7/0943 , G11B7/133 , G11B7/1365 , G11B20/1496 , G11B2020/10638 , G11B2020/10759 , G11B2220/2537 , G11B7/013 , G11B7/13 , G11B7/14 , G11B7/24088
摘要： An optical recording/reproducing method employs a recording laser beam having a first output and a first wavelength, and a reproducing laser beam having a second output lower than the first output and a second wavelength shorter than the first wavelength. A disk-like recording medium is irradiated with the recording and reproducing laser beams by use of an objective lens having an NA of about 0.55 so that a small mark equal to or smaller than about one fourth of a spot size optically defined from the wavelength of the recording laser beam and the NA of the objective lens is formed on the recording medium by a recording characteristic of the recording medium and a shielding plate provided in an optical system for irradiation with the laser beam. Two-dimensional recording is performed as a recording system to arrange marks at lattice points of a two-dimensional lattice which extend in a track direction and a track radius direction. The reproducing system detects a reproduction signal from the mark on the two-dimensional lattice point, and the reproduction signal from each mark is used to perform a signal processing, thereby detecting information.
摘要翻译：光学记录/再现方法采用具有第一输出和第一波长的记录激光束，以及具有比第一输出低的第二输出和比第一波长短的第二波长的再现激光束。通过使用NA为约0.55的物镜，用记录和再现激光束照射盘状记录介质，使得等于或小于光斑大小的四分之一的小的标记，其光学尺寸从通过记录介质的记录特性和设置在用于照射激光束的光学系统中的屏蔽板，在记录介质上形成记录激光束和物镜的NA。执行二维记录作为记录系统，以在轨道方向和轨道半径方向上延伸的二维网格的格点处布置标记。再现系统检测来自二维格点上的标记的再现信号，并且使用来自每个标记的再现信号进行信号处理，从而检测信息。

2. 发明授权

US5835469A High-density information recording/reproducing method 失效
标题翻译：高密度信息记录/再现方法
公开(公告)号：US5835469A
公开(公告)日：1998-11-10
申请号：US553433
申请日：1995-11-20
申请人： Takeshi Maeda , Hisataka Sugiyama , Hiroyuki Awano , Harukazu Miyamoto , Keikichi Andoo , Kouichirou Wakabayashi , Atsushi Saito , Takeshi Shimano , Junko Ushiyama , Osamu Komoda , Hideki Saga
发明人： Takeshi Maeda , Hisataka Sugiyama , Hiroyuki Awano , Harukazu Miyamoto , Keikichi Andoo , Kouichirou Wakabayashi , Atsushi Saito , Takeshi Shimano , Junko Ushiyama , Osamu Komoda , Hideki Saga
IPC分类号： G11B7/004 , G11B7/007 , G11B7/013 , G11B7/085 , G11B7/09 , G11B7/13 , G11B7/135 , G11B7/14 , G11B11/105 , G11B20/14 , G11B7/00
CPC分类号： B82Y10/00 , G11B11/10502 , G11B11/10545 , G11B11/10584 , G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10287 , G11B20/1037 , G11B20/10509 , G11B7/004 , G11B7/00745 , G11B7/08529 , G11B7/0901 , G11B7/0938 , G11B7/0943 , G11B7/133 , G11B7/1365 , G11B20/1496 , G11B2020/10638 , G11B2020/10759 , G11B2220/2537 , G11B7/013 , G11B7/13 , G11B7/14 , G11B7/24088
摘要： An optical recording/reproducing method employs a recording laser beam having a first output and a first wavelength, and a reproducing laser beam having a second output lower than the first output and a second wavelength shorter than the first wavelength. A disk-like recording medium is irradiated with the recording and reproducing laser beams by use of an objective lens having an NA of about 0.55 so that a small mark equal to or smaller than about one fourth of a spot size optically defined from the wavelength of the recording laser beam and the NA of the objective lens is formed on the recording medium by a recording characteristic of the recording medium and a shielding plate provided in an optical system for irradiation with the laser beam. Two-dimensional recording is performed as a recording system to arrange marks at lattice points of a two-dimensional lattice which extend in a track direction and a track radius direction. The reproducing system detects a reproduction signal from the mark on the two-dimensional lattice point, and the reproduction signal from each mark is used to perform a signal processing, thereby detecting information.
摘要翻译： PCT No.PCT / JP95 / 00542 Sec。 371日期：1995年11月20日 102（e）1995年11月20日日期PCT 1995年3月25日PCT PCT。公开号WO95 / 26548 日期1995年10月5日光记录/再现方法采用具有第一输出和第一波长的记录激光束和具有比第一输出低的第二输出和比第一波长短的第二波长的再现激光束。通过使用NA为约0.55的物镜，用记录和再现激光束照射盘状记录介质，使得等于或小于光斑大小的四分之一的小的标记，其光学尺寸从通过记录介质的记录特性和设置在用于照射激光束的光学系统中的屏蔽板，在记录介质上形成记录激光束和物镜的NA。执行二维记录作为记录系统，以在轨道方向和轨道半径方向上延伸的二维网格的格点处布置标记。再现系统检测来自二维格点上的标记的再现信号，并且使用来自每个标记的再现信号进行信号处理，从而检测信息。

3. 发明授权

US5263015A Magneto-optical recording media and overwrite recording method using the same 失效
标题翻译：磁光记录介质和使用其的重写记录方法
公开(公告)号：US5263015A
公开(公告)日：1993-11-16
申请号：US795506
申请日：1991-11-21
申请人： Toshio Niihara , Harukazu Miyamoto , Makoto Miyamoto , Keikichi Andoo , Tsuyoshi Toda , Atsushi Saito , Masahiro Ojima , Yoshio Suzuki , Hiroyuki Awano
发明人： Toshio Niihara , Harukazu Miyamoto , Makoto Miyamoto , Keikichi Andoo , Tsuyoshi Toda , Atsushi Saito , Masahiro Ojima , Yoshio Suzuki , Hiroyuki Awano
IPC分类号： G11B11/105 , G11B7/00
CPC分类号： G11B11/10586 , G11B11/10517 , G11B11/10584
摘要： According to this invention, since the range of power necessary for erasing an overwritable magneto-optical recording medium is set to 2.5 mW or above, overwriting is possible without erase residue due to mark (magnetic domain) diameter difference, tracking offset, ambient temperature variation and characteristic dispersion between magneto-optical recording media and thus the magneto-optical recording medium has high reliability. Moreover, the rate of change, K of the switching field of the memory layer relative to temperature at around an erase start temperature can be controlled to be a constant value so that an erase power margin can be increased and that the tolerance to the reading light when the ambient temperature rises can be improved.
摘要翻译：根据本发明，由于将可重写磁光记录介质擦除所必需的功率范围设定为2.5mW以上，所以能够进行覆盖，不会由于标记（磁畴）直径差，跟踪偏移，环境温度变化引起的擦除残留并且磁光记录介质和磁光记录介质之间的特征色散具有高可靠性。此外，存储层的开关场相对于擦除开始温度附近的温度的变化率K可以被控制为一个恒定值，使得可以增加擦除功率余量，并且对读取光的容限当环境温度升高时可以改善。

4. 发明授权

US5559777A Optical recording method employing pit edge recording on recording medium divided into a plurality of zones wherein recording parameters vary from zone to zone 失效
标题翻译：在记录介质上采用凹坑边缘记录的光记录方法被划分为多个区域，其中记录参数随区域而变化
公开(公告)号：US5559777A
公开(公告)日：1996-09-24
申请号：US428057
申请日：1995-04-25
申请人： Takeshi Maeda , Shinichi Arai , Kazuo Isaka , Atsushi Saito , Takuya Mizokami , Hisataka Sugiyama , Satoshi Kawamura
发明人： Takeshi Maeda , Shinichi Arai , Kazuo Isaka , Atsushi Saito , Takuya Mizokami , Hisataka Sugiyama , Satoshi Kawamura
IPC分类号： G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/125 , G11B20/10 , G11B20/12 , G11B20/14 , G11B20/18 , G11B23/40 , G11B5/09
CPC分类号： G11B7/005 , G11B20/10 , G11B20/1258 , G11B20/1403 , G11B20/1833 , G11B23/40 , G11B7/004 , G11B7/0045 , G11B7/00736 , G11B7/0079 , G11B7/126 , G11B20/1879 , G11B2020/1277
摘要： An information recording/reproducing method is disclosed for an information recording/reproducing apparatus including a recording medium having a disk-like shape, a unit for rotating the recording medium at a constant angular velocity, a unit for recording code information so that the bit length of the code information becomes approximately constant with respect to a radial position on the recording medium, a unit for modulating the code information to be recorded to form a modulated signal, and a recording unit for forming in the recording medium a localized recording region having a different physical property with respect to an unrecorded region, the recording unit being controlled by the modulated signal so that the code information is recorded to correspond to the edge of the recording region, wherein the bit rate of the code information to be recorded changes depending on a location on the recording medium, and a part of each of a recording characteristic of the apparatus and a reproducing characteristic of the apparatus is changed in accordance with a location on the recording medium.
摘要翻译：公开了一种信息记录/再现方法，用于包括具有盘状形状的记录介质，用于以恒定角速度旋转记录介质的单元的信息记录/再现装置，用于记录代码信息的单元，使得位长度代码信息相对于记录介质上的径向位置变得近似恒定，用于调制要记录的代码信息以形成调制信号的单元，以及记录单元，用于在记录介质中形成具有相对于未记录区域的不同物理特性，记录单元由调制信号控制，使得代码信息被记录为对应于记录区域的边缘，其中要记录的代码信息的比特率根据记录介质上的位置，以及装置和记录介质的记录特性的一部分根据记录介质上的位置改变设备的生产特性。

5. 发明授权

US4835759A Method and apparatus for compensating variation of read data in an optical data storage 失效
标题翻译：用于补偿光学数据存储器中的读取数据的变化的方法和装置
公开(公告)号：US4835759A
公开(公告)日：1989-05-30
申请号：US878436
申请日：1986-06-25
申请人： Atsushi Saito , Takeshi Maeda , Hisataka Sugiyama , Kazuo Shigematsu , Wasao Takasugi
发明人： Atsushi Saito , Takeshi Maeda , Hisataka Sugiyama , Kazuo Shigematsu , Wasao Takasugi
IPC分类号： G11B7/00 , G11B7/004 , G11B7/005 , G11B7/013 , G11B20/10 , G11B20/14 , G11B27/30
CPC分类号： G11B20/10222 , G11B20/10009 , G11B20/1403 , G11B27/3027 , G11B7/004 , G11B7/24085
摘要： When recording domains are formed locally on a recording medium and information is recorded and reproduced by using rise and fall in a reproduced waveform obtained from the recording domains as data, timing patterns indicating start of demodulation are recorded for the lead-edge and the tail-edge of the recording domains, respectively; time interval between the timing signal for starting demodulation detected from the rise in the reproduced waveform and the timing signal for starting demodulation detected from the fall in the reproduced waveform is detected; time shifts of the signals detected from the lead-edge and the tail-edge of the recording domains succeeding the timing patterns for starting demodulation by using the time interval thus detected; and the information is stably detected as time sequential data having no jitter.
摘要翻译：当在记录介质上本地形成记录域时，通过使用从记录域获得的再现波形中的上升和下降来记录和再现信息作为数据，记录指示开始解调的定时模式用于前沿和尾部，分别记录域的边缘; 检测从再生波形的上升检测到的开始解调用定时信号与从再现波形的下降检测到的开始解调用定时信号之间的时间间隔; 通过使用这样检测的时间间隔，从用于开始解调的定时模式的记录区域的前沿和尾边检测到的信号的时移; 并且信息被稳定地检测为没有抖动的时序数据。

6. 发明授权

US5572503A Correcting non-linear distortions of optical information with a non-linear equalizer 失效
标题翻译：用非线性均衡器校正光信息的非线性失真
公开(公告)号：US5572503A
公开(公告)日：1996-11-05
申请号：US358584
申请日：1994-12-13
申请人： Naoki Satoh , Takeshi Maeda , Atsushi Saito , Hisataka Sugiyama , Hirofumi Sukeda , Hiroyuki Tsuchinaga , Yasuhide Ouchi
发明人： Naoki Satoh , Takeshi Maeda , Atsushi Saito , Hisataka Sugiyama , Hirofumi Sukeda , Hiroyuki Tsuchinaga , Yasuhide Ouchi
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B20/10
CPC分类号： G11B20/10046 , G11B20/10009 , G11B7/0045 , G11B7/005
摘要： An optical disk device which uses a light spot for reproducing data, including photodetector, a decoder, and a non-linear equalizer provided between the photodetector and the decoder for correcting non-linear distortions in a reproduced signal from an optical disk. The non-linear equalizer includes a linear equalizer and a decision feedback equalizer provided after the linear equalizer. The non-linear equalizer includes a detector for detecting a signal on the basis of the output of the linear equalizer with the output of the detector being input to the decision feedback equalizer, the output of which is input to the detector along with the output of the linear equalizer in an additive manner.
摘要翻译：一种光盘装置，其使用光点来再现数据，包括设置在光电检测器和解码器之间的光电检测器，解码器和非线性均衡器，用于校正来自光盘的再现信号中的非线性失真。非线性均衡器包括线性均衡器和在线性均衡器之后提供的判决反馈均衡器。非线性均衡器包括用于基于线性均衡器的输出来检测信号的检测器，其中检测器的输出被输入到判决反馈均衡器，其输出与检测器的输出一起输入到检测器线性均衡器。

7. 发明授权

US4980877A Optical recording and reproducing system with high track density and low cross-talk 失效
标题翻译：具有高轨道密度和低串扰的光学记录和再现系统
公开(公告)号：US4980877A
公开(公告)日：1990-12-25
申请号：US239289
申请日：1988-09-01
申请人： Hisataka Sugiyama , Takeshi Maeda , Atsushi Saito
发明人： Hisataka Sugiyama , Takeshi Maeda , Atsushi Saito
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/09 , G11B7/26 , G11B11/105
CPC分类号： G11B7/0901 , G11B11/10502 , G11B11/10578 , G11B11/10597 , G11B7/0938 , G11B7/261 , G11B7/00745
摘要： An optical recording and reproducing system for an optical recording medium on which information pits are disposed in a tracking direction of the optical recording medium along adjacent tracks which are separated from each other by a predetermined gap which is half the diameter of an optical spot radiated onto the optical recording medium for recording and reproducing information using the information pits, thereby providing a high track density. Information on the optical recording medium is reproduced using a low cross-talk method in which an optical detector for detecting a light intensity distribution of the radiated optical spot after impingement on the optical recording medium has a detecting surface divided into first, second, and third detecting areas. The second detecting area is disposed between the first and third detecting areas. The information on the optical recording medium is reproduced using outputs of the first and third detecting areas.

8. 发明授权

US4866692A Method and apparatus for information recording and reproduction of a pit-shape-forming optical recording type 失效
标题翻译：用于凹坑形成光学记录类型的信息记录和再现的方法和装置
公开(公告)号：US4866692A
公开(公告)日：1989-09-12
申请号：US85964
申请日：1987-08-17
申请人： Atsushi Saito , Takeshi Maeda , Hisataka Sugiyama , Wasao Takasugi
发明人： Atsushi Saito , Takeshi Maeda , Hisataka Sugiyama , Wasao Takasugi
IPC分类号： G11B7/00 , G11B7/004 , G11B7/013 , G11B7/125 , G11B11/105 , G11B20/10
CPC分类号： G11B7/126 , G11B11/10528 , G11B11/1053 , G11B20/10009 , G11B20/10222 , G11B7/24085 , G11B11/10595
摘要： A method and an apparatus for recording and reproducing information for use with an optical disk apparatus in which a pit edge recording method is used. According to the pit edge recording method, the leading edge and the trailing edge of a hole pit or a record domain generated during a recording operation are dealt with as information. During the recording, the recording pulse width and the recording power are corrected, and during the reproduction, the variation in the edge position is corrected.
摘要翻译：一种用于记录和再现用于其中使用凹坑边缘记录方法的光盘装置的信息的方法和装置。根据凹坑边缘记录方法，作为信息处理在记录操作期间产生的孔坑或记录域的前缘和后缘。在记录期间，记录脉冲宽度和记录功率被校正，并且在再现期间修正边缘位置的变化。

9. 发明授权

US5703855A Optical disk apparatus and recording and reading method for an optical disk using the same 失效
标题翻译：光盘装置以及使用其的光盘的记录和读取方法
公开(公告)号：US5703855A
公开(公告)日：1997-12-30
申请号：US220428
申请日：1994-03-30
申请人： Fumiyoshi Kirino , Tsuyoshi Toda , Horishi Ide , Hisataka Sugiyama , Atsushi Saito , Hiroyuki Tsuchinaga , Takeshi Maeda , Fumio Kugiya , Toshimitsu Kaku , Seiichi Mita , Kazuo Shigematsu , Yasuhide Ouchi
发明人： Fumiyoshi Kirino , Tsuyoshi Toda , Horishi Ide , Hisataka Sugiyama , Atsushi Saito , Hiroyuki Tsuchinaga , Takeshi Maeda , Fumio Kugiya , Toshimitsu Kaku , Seiichi Mita , Kazuo Shigematsu , Yasuhide Ouchi
IPC分类号： G11B7/0045 , G11B7/095 , G11B7/125 , G11B11/105 , G11B20/12 , G11B20/18 , G11B7/00
CPC分类号： G11B7/126 , G11B11/1053 , G11B11/10595 , G11B7/0045 , G11B7/0956 , G11B20/1258 , G11B20/182
摘要： A super high density optical disk apparatus is obtained by using an exchangeable recording medium having a recording capacity of at least 1.5 Gb/in.sup.2 in an optical recording and reading apparatus for recording or reading at least using a laser beam or by using one of an element which can record on a recording medium only once and another element which can record at least two times repeatedly as recording elements to be used.
摘要翻译：通过在至少使用激光束的记录或读取的光学记录和读取装置中使用具有至少1.5Gb / in2的记录容量的可交换记录介质来获得超高密度光盘装置，或者通过使用元件其可以在记录介质上记录一次，另一个可以重复记录至少两次的元素作为要使用的记录元素。

10. 发明授权

US4969137A Optical recording and reproducing apparatus having a multi-spot positioning control mechanism 失效
标题翻译：具有多点定位控制机构的光记录再生装置
公开(公告)号：US4969137A
公开(公告)日：1990-11-06
申请号：US155697
申请日：1988-02-16
申请人： Hisataka Sugiyama , Takeshi Maeda , Atsushi Saito , Fumio Hara
发明人： Hisataka Sugiyama , Takeshi Maeda , Atsushi Saito , Fumio Hara
IPC分类号： G11B7/085 , G11B7/09 , G11B7/12 , G11B7/14
CPC分类号： G11B7/14 , G11B7/08517 , G11B7/08529 , G11B7/08547 , G11B7/12 , G11B7/0901 , G11B7/0912
摘要： In optically coupling a plurality of light sources to an optical system for focusing light beams from the light sources into spots on a record plane, a center axis of a light beam from a first one of the light sources is aligned to an optical axis of the focusing optical system, and the spots other than a first spot formed by the light beam from the first light source are rotated around the first spot on the record plane to position the spots to the respective target tracks, and a tracking error signal for at least one of the first spot and another spot is detected and the positions of the plurality of spots are integrally controlled based on the detected tracking error signal so that the plurality of spots can follow the respective target tracks. The target tracks to which the spots are to be positioned may be either one track or different tracks. The positioning of the spots to the target tracks may be done either manually or automatically. In the automatic method, a tracking error signal is detected for the first spot, and a deflection mechanism for radially swinging beams from the laser light sources is controlled to control the positions of the spots on the record plane and to cause the first spot to follow the target track.
摘要翻译：在将多个光源光学耦合到用于将来自光源的光束聚焦到记录平面上的光点的光学系统中，来自第一个光源的光束的中心轴线与光源的光轴对齐聚焦光学系统，并且除了由来自第一光源的光束形成的第一光斑之外的光点围绕记录平面上的第一光点旋转，以将光斑定位到各个目标轨道，并且至少跟踪误差信号根据检测到的跟踪误差信号检测第一点和另一个点之一，并且多个点的位置被一体地控制，使得多个点可以跟随相应的目标轨道。斑点要被定位到的目标轨道可以是一个轨道或不同的轨道。斑点到目标轨迹的定位可以手动或自动完成。在自动方法中，对于第一点检测跟踪误差信号，并且控制用于从激光光源径向摆动的光束的偏转机构，以控制记录平面上的点的位置并使第一点跟随目标轨道。

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