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1. 发明授权

US5696742A Optical disk device for reproducing address information from wobbled groove 失效
标题翻译：用于从摆动槽再现地址信息的光盘装置
公开(公告)号：US5696742A
公开(公告)日：1997-12-09
申请号：US637829
申请日：1996-04-25
申请人： Nobuo Ogata , Yasuo Nakata , Yoshihiro Sekimoto , Kunio Kojima , Hideaki Sato
发明人： Nobuo Ogata , Yasuo Nakata , Yoshihiro Sekimoto , Kunio Kojima , Hideaki Sato
IPC分类号： G11B7/24 , G11B7/00 , G11B7/005 , G11B7/09 , G11B7/13 , G11B11/105 , G11B7/085
CPC分类号： G11B7/094 , G11B7/0941 , G11B11/10576 , G11B7/0904 , G11B7/0943 , G11B7/0948
摘要： A light sensor is divided into two light receiving sections which receive light reflected by an optical disk. A first intermediate address signal is generated from a difference signal of outputs of the light receiving sections. A second intermediate address signal is generated from a sum signal of outputs of the light receiving sections. An address generating circuit generates an address signal by using the first and second intermediate address signals. An optical disk device stably generating an address signal regardless of a displacement of an objective lens and a change in reflectance of the optical disk is thus provided.
摘要翻译：光传感器被分成接收由光盘反射的光的两个光接收部分。从光接收部分的输出的差分信号产生第一中间地址信号。从光接收部分的输出的和信号产生第二中间地址信号。地址产生电路通过使用第一和第二中间地址信号来产生地址信号。因此，提供了不管物镜的位移和光盘的反射率的变化如何稳定地产生地址信号的光盘装置。

2. 发明授权

US5659528A Information recording-reproduction method 失效
标题翻译：信息记录再现方法
公开(公告)号：US5659528A
公开(公告)日：1997-08-19
申请号：US348158
申请日：1994-11-28
申请人： Kunio Kojima , Yoshihiro Sekimoto , Yasuo Nakata , Tomoyuki Miyake , Nobuo Ogata , Toshiharu Inui
发明人： Kunio Kojima , Yoshihiro Sekimoto , Yasuo Nakata , Tomoyuki Miyake , Nobuo Ogata , Toshiharu Inui
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B11/10 , G11B11/105 , G11B20/10 , G11B27/034 , G11B27/10 , G11B5/09
CPC分类号： G11B20/10527 , G11B11/10508 , G11B11/10563 , G11B11/10595 , G11B27/034 , G11B27/105 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B2220/20 , G11B2220/216 , G11B2220/2525 , G11B2220/2545
摘要： An information recording-reproduction method wherein: upon reproducing, recorded information corresponding to a predetermined number of sectors from the leading sector of each of a plurality of information tracks on an optical disk is preliminarily stored on a buffer memory, and during a period in which the optical pickup is shifted to another information track, the recording information, stored in the buffer memory, is reproduced; and upon recording, during a period in which the optical pickup is shifted to another information track, recording information is temporarily stored in the buffer memory, and after completion of the recording, the recording information is recorded on the optical disk. In this method, information tracks, which are formed on the optical disk discontinuously with one .another, are regarded as if they were continuous tracks, and the apparent recording and reproducing operation is carried out continuously.
摘要翻译：一种信息记录再现方法，其中：在再现时，预先将存储在光盘上的多个信息轨道中的每个扇区的预定数量的扇区的记录信息存储在缓冲存储器中，并且在其中光拾取器移动到另一信息轨道，再现存储在缓冲存储器中的记录信息; 并且在记录时，在光学拾取器被移动到另一个信息轨道的时段期间，将记录信息临时存储在缓冲存储器中，并且在完成记录之后，记录信息被记录在光盘上。在这种方法中，在光盘上不连续地形成的信息轨迹被认为是连续轨迹，并且连续执行表观记录和再现操作。

3. 发明授权

US06392970B1 Reproducing light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium 失效
标题翻译：再现光存储装置的光量控制方法，再现光量控制装置和光记录介质
公开(公告)号：US06392970B1
公开(公告)日：2002-05-21
申请号：US09129191
申请日：1998-07-23
申请人： Hiroshi Fuji , Shigemi Maeda , Tomoyuki Miyake , Yasuo Nakata , Nobuo Ogata , Jun Akiyama , Toshiharu Inui , Yoshihiro Sekimoto , Hideaki Sato
发明人： Hiroshi Fuji , Shigemi Maeda , Tomoyuki Miyake , Yasuo Nakata , Nobuo Ogata , Jun Akiyama , Toshiharu Inui , Yoshihiro Sekimoto , Hideaki Sato
IPC分类号： G11B509
CPC分类号： G11B7/126 , G11B7/005 , G11B7/00745 , G11B11/10515 , G11B11/10584 , G11B11/10595
摘要： A reproducing light quantity control method for an optical memory device includes the steps of (1) recording test data on an optical recording medium; (2) reproducing the test data recorded on the optical recording medium by changing a reproducing light quantity in a plurality of light quantity values; (3) measuring a quality value and a signal quantity of each of a plurality of reproducing signals from the test data; (4) selecting an optimum reproducing signal quantity from a plurality of reproducing signal quantities in accordance with quality values of the plurality of reproducing signals so as to decide a target value of reproducing signal quantity; and (5) recording the target value on a target value recording region of the optical recording medium. This method reduces the time required to obtain a target value of a reproducing signal quantity and speeds up an operation from installing of the optical recording medium to finishing of preparation for recording and reproducing.
摘要翻译：一种用于光学存储器件的再现光量控制方法包括以下步骤：（1）将测试数据记录在光学记录介质上; （2）通过改变多个光量值中的再现光量来再现记录在光记录介质上的测试数据; （3）从测试数据测量多个再现信号中的每一个的质量值和信号量; （4）根据多个再现信号的质量值从多个再现信号量中选择最佳再现信号量，以便确定再现信号量的目标值; 和（5）将目标值记录在光学记录介质的目标值记录区上。该方法减少了获得再现信号量的目标值所需的时间，并且加快了从安装光学记录介质到完成记录和再现准备的操作。

4. 发明授权

US5446721A Objective lens drive device with support system 失效
标题翻译：物镜驱动装置带支撑系统
公开(公告)号：US5446721A
公开(公告)日：1995-08-29
申请号：US138014
申请日：1993-10-19
申请人： Yoshihiro Sekimoto , Toshiharu Inui , Yasuo Nakata , Nobuo Ogata , Hideaki Sato
发明人： Yoshihiro Sekimoto , Toshiharu Inui , Yasuo Nakata , Nobuo Ogata , Hideaki Sato
IPC分类号： G11B7/09 , G02B7/02 , G11B7/00
CPC分类号： G11B7/0932
摘要： In an objective lens driving apparatus used in an optical information recording and reproducing apparatus or the like, a vibration is suppressed and a resonance peak on transfer function is suppressed when movable portions are moved in focusing and tracking directions and when these portions are turned around focusing and tracking directions. An elastic body which supports the movable portions movably in two directions, i.e., focusing direction and tracking direction to a fixed portion includes a bent portion in an intermediate portion between the side of movable portion and the side of fixed portion. A damper member is adhered to bridge a gap between a branched arm portion branching from a linear portion extending from the side of movable portion, and a fixed portion. The bent portion couples two linear portions and which are not on the same line.
摘要翻译：在用于光信息记录和再现装置等的物镜驱动装置中，当可移动部分在聚焦和跟踪方向上移动时，并且当这些部分转向聚焦时，抑制振动并抑制传递函数上的共振峰值和跟踪方向。支撑可移动部分的弹性体在朝向固定部分的聚焦方向和跟踪方向的两个方向上可移动地包括在可动部分的侧面和固定部分侧之间的中间部分中的弯曲部分。阻尼构件被粘接以桥接从从可动部分的侧面延伸的直线部分分支的分支臂部分与固定部分之间的间隙。弯曲部分连接两个线性部分，并且不在同一条线上。

5. 发明授权

US5999502A Optical information recording/reproducing apparatus having focus servo control compensation for lands and grooves 失效
标题翻译：具有用于焊盘和凹槽的聚焦伺服控制补偿的光学信息记录/再现装置
公开(公告)号：US5999502A
公开(公告)日：1999-12-07
申请号：US539523
申请日：1995-10-06
申请人： Yasuo Nakata , Nobuo Ogata , Kunio Kojima , Hideaki Sato
发明人： Yasuo Nakata , Nobuo Ogata , Kunio Kojima , Hideaki Sato
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/09 , G11B11/105 , G11B7/095
CPC分类号： G11B7/00718 , G11B7/094 , G11B7/0945 , G11B11/10576 , G11B7/0908
摘要： In an optical information recording-reproduction apparatus, a focus servo control circuit generates a focus error signal and a light beam is accurately converged on a surface of an optical disk according to a focus servo control signal based upon the focus error signal. In accordance with the present invention, the focus error signal is compensated by selecting a land section focus offset amount by a switch when land sections are tracked, and it is compensated by selecting a groove section focus offset amount when groove sections are tracked. As a result, since the land sections and the groove sections are controlled by different focus servo control signals, recording and reproducing operations are carried out at the most optimal focusing positions respectively obtainable, thereby making it possible to significantly improve the quality of a reproduced signal.
摘要翻译：在光信息记录再生装置中，聚焦伺服控制电路根据聚焦误差信号，根据聚焦伺服控制信号，生成聚焦误差信号，光束精确地会聚在光盘的表面上。根据本发明，通过在跟踪陆地部分时通过开关选择陆地区域焦点偏移量来补偿聚焦误差信号，并且当通过跟踪沟槽部分时选择沟槽部分聚焦偏移量来补偿聚焦误差信号。结果，由于通过不同的聚焦伺服控制信号来控制焊盘部分和沟槽部分，所以可以分别获得的最佳聚焦位置进行记录和再现操作，从而可以显着提高再现信号的质量。

6. 发明授权

US5940364A Optical disk including wobbled guiding groove composed of pits, optical disk manufacturing apparatus, and optical disk recording/reproducing apparatus 失效
标题翻译：包括由凹坑构成的摆动导向槽，光盘制造装置和光盘记录/再现装置的光盘
公开(公告)号：US5940364A
公开(公告)日：1999-08-17
申请号：US843699
申请日：1997-04-16
申请人： Nobuo Ogata , Yasuo Nakata , Yoshihiro Sekimoto
发明人： Nobuo Ogata , Yasuo Nakata , Yoshihiro Sekimoto
IPC分类号： G11B7/24 , G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/0055 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/125 , G11B7/135 , G11B7/30 , G11B11/10 , G11B11/105 , G11B13/00 , G11B19/28
CPC分类号： G11B7/24085 , G11B11/10597 , G11B19/28 , G11B7/0045 , G11B7/005 , G11B7/0079 , G11B7/126 , G11B7/24082 , G11B11/10584 , G11B7/00454
摘要： An optical disk having thereon intermittent spiral guiding grooves composed of a pit array, wherein each guiding groove has a wobbling side wall at either side, so that the pit array is used as a data reproduce-only area and spaces between adjacent guiding grooves are used as a data recordable area, thereby realizing a high-density optical disk having both the data reproduce-only area and data recordable area.
摘要翻译：具有由凹坑阵列组成的间歇螺旋导向槽的光盘，其中每个引导槽在任一侧具有摆动侧壁，使得凹坑阵列用作数据再现区域，并且使用相邻引导槽之间的间隔作为数据可记录区域，从而实现了具有数据再现区域和数据可记录区域两者的高密度光盘。

7. 发明授权

US5673247A Optical pickup having two objective lenses 失效
标题翻译：具有两个物镜的光学拾取器
公开(公告)号：US5673247A
公开(公告)日：1997-09-30
申请号：US758010
申请日：1996-11-27
申请人： Yoshihiro Sekimoto , Yasuo Nakata , Nobuo Ogata , Tomoyuki Miyake
发明人： Yoshihiro Sekimoto , Yasuo Nakata , Nobuo Ogata , Tomoyuki Miyake
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/135 , G11B11/105
CPC分类号： G11B7/1374 , G11B11/10543 , G11B7/1365 , G11B7/1369 , G11B7/139 , G11B2007/0006
摘要： An optical pickup for irradiating a first recording medium and a second recording medium with light, at least one of the substrate thickness and the refractive index of the first recording medium being different from that of the second recording medium, where the optical pickup includes: a light source for emitting the light; a polarized beam splitter for receiving the light and for transmitting at least a portion of the light while reflecting the remaining portion of the light depending on the polarization direction of the light; a first objective lens for focusing the portion of the light reflected by the polarized beam splitter onto the first recording medium; and a second objective lens for focusing the portion of the light transmitted through the polarized beam splitter onto the second recording medium.
摘要翻译：一种用于用光照射第一记录介质和第二记录介质的光学拾取器，所述第一记录介质的基板厚度和折射率中的至少一个与所述第二记录介质的折射率不同，其中所述光学拾取器包括：用于发光的光源; 偏振分束器，用于接收光并用于透射至少一部分光，同时根据光的偏振方向反射光的剩余部分; 用于将由偏振分束器反射的光的一部分聚焦到第一记录介质上的第一物镜; 以及用于将透射通过偏振分束器的光的一部分聚焦到第二记录介质上的第二物镜。

8. 发明授权

US5189655A Optical head for optical disk recording/reproducing apparatus including modified Wollaston prism 失效
标题翻译：用于光盘记录/再现设备的光学头包括修改的WOLLASTON PRISM
公开(公告)号：US5189655A
公开(公告)日：1993-02-23
申请号：US580830
申请日：1990-09-11
申请人： Nobuo Ogata , Tetsuo Ueyama , Yoshihiro Sekimoto , Toshiyuki Tanaka , Hideaki Sato
发明人： Nobuo Ogata , Tetsuo Ueyama , Yoshihiro Sekimoto , Toshiyuki Tanaka , Hideaki Sato
IPC分类号： G11B11/10 , G11B7/09 , G11B7/135 , G11B11/105
CPC分类号： G11B7/1356 , G11B11/10541 , G11B7/09
摘要： An optical head, for an optical disk recording/reproducing apparatus, for irradiating a recording medium by a light beam emitted from a light source and introducing an information light formed by a light beam reflected from the recording medium to a photo detector, a shift of an optical axis of the information light being minimized. The optical head includes a unit for receiving the information light which is reflected from the recording medium, a first reflecting unit for reflecting such information light, a second reflecting unit for reflecting the information light reflected by the first reflecting unit and for directing the reflected information light toward the photo detecting system, and a unit for emerging the information light reflected by the second reflecting unit to the photo detecting system. The first reflecting unit has a surface for reflecting the information light thereby, and the second reflecting unit also has a surface for reflecting the reflected information light from the surface of the first reflecting unit. The surface of the first reflecting unit is substantially parallel to the surface of the second reflecting unit. The emerging surface has a surface from which the information light reflected by the surface of the second reflecting unit emerges. An angle between the surface of the receiving unit and the surface of the first reflecting unit is substantially equal to an angle between the surface of the second reflecting unit and the surface of the emerging unit.

9. 发明授权

US5050155A Pick-up device for use in an optical information recording system utilizing a diffraction grating with blaze characteristics 失效
$Pick-up device for use in an optical information recording system utilizing a diffraction grating with blaze characteristics$
标题翻译：拾取装置用于利用具有火焰特征的衍射光栅的光学信息记录系统
公开(公告)号：US5050155A
公开(公告)日：1991-09-17
申请号：US330429
申请日：1989-03-30
申请人： Yukio Kurata , Hideaki Sato , Yasuo Nakata , Nobuo Ogata
发明人： Yukio Kurata , Hideaki Sato , Yasuo Nakata , Nobuo Ogata
IPC分类号： G11B7/12 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/123
摘要： A pick-up device which includes a light source and a condenser lens for effecting recording and reproduction of information by projecting a light beam as collected by the condenser lens onto a recording medium. A diffraction grating is provided between the light source and the condenser lens for dividing light returning from the recording medium by a diffraction grating so as to be directed to a photo-detector, to thereby obtain an optical detection signal.

10. 发明授权

US4849825A Pick-up device for use in an optical information recording system 失效
标题翻译：用于光学信息记录系统的拾取装置
公开(公告)号：US4849825A
公开(公告)日：1989-07-18
申请号：US928395
申请日：1986-11-10
申请人： Yukio Kurata , Hideaki Sato , Yasuo Nakata , Nobuo Ogata , Teruaki Inoue
发明人： Yukio Kurata , Hideaki Sato , Yasuo Nakata , Nobuo Ogata , Teruaki Inoue
IPC分类号： G11B7/12 , G11B7/135
CPC分类号： G11B7/1353 , G11B7/123
摘要： A pick-up device which includes a light source and a condenser lens for effecting recording and reproduction of information by projecting a light beam as collected by the condenser lens onto a recording medium. A diffraction grating is provided between the light source and the condenser lens for dividing light returning from the recording medium by a diffraction grating so as to be directed to a photo-detector, to thereby obtain an optical detection signal.
摘要翻译：一种拾取装置，其包括光源和聚光透镜，用于通过将由聚光透镜收集的光束投射到记录介质上来进行信息的记录和再现。在光源和聚光透镜之间设置衍射光栅，用于通过衍射光栅分离从记录介质返回的光，以便被引导到光检测器，从而获得光检测信号。

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