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1. 发明授权

US5859819A Tracking and focus control system for optical disk apparatus 失效
标题翻译：光盘设备跟踪和对焦控制系统
公开(公告)号：US5859819A
公开(公告)日：1999-01-12
申请号：US637936
申请日：1996-04-23
申请人： Kyoko Miyabe , Koichi Tezuka , Shingo Hamaguchi
发明人： Kyoko Miyabe , Koichi Tezuka , Shingo Hamaguchi
IPC分类号： G11B7/09 , G11B7/12 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/1353 , G11B11/10597 , G11B7/0901 , G11B7/0943 , G11B7/123 , G11B7/131 , G11B7/1356 , G11B7/1359 , G11B7/1381 , G11B11/10545
摘要： An optical disk apparatus comprising an optical element for dividing the reflected light into a plurality of light beams for generating a tracking error signal and a focus error signal, and deflecting these light beams into different directions from each other, a first calculating means for calculating the focus error signal on the basis of outputs from said photodetecting means, and a second calculating means for calculating the tracking error signal on the basis of the outputs from said photodetecting means in accordance with a structure of a track. The second calculating means outputs a tracking error signal by a push-pull method when a track has a successive groove. The second calculating means outputs a tracking error signal by a heterodyne method when a track has only a row of pits.
摘要翻译：一种光盘装置，包括用于将反射光分成多个光束的光学元件，用于产生跟踪误差信号和聚焦误差信号，并将这些光束彼此偏向不同的方向;第一计算装置，基于来自所述光检测装置的输出的聚焦误差信号;以及第二计算装置，用于根据所述光检测装置的输出根据轨道的结构计算跟踪误差信号。当轨道具有连续的凹槽时，第二计算装置通过推挽方法输出跟踪误差信号。第二计算装置当轨道仅具有一排凹坑时通过外差方法输出跟踪误差信号。

2. 发明授权

US5619482A Optical head unit for an optical disk using a diffraction grating 失效
$Optical head unit for an optical disk using a diffraction grating$
标题翻译：使用衍射光栅的光盘的光头单元
公开(公告)号：US5619482A
公开(公告)日：1997-04-08
申请号：US529270
申请日：1995-09-15
申请人： Koichi Tezuka , Kyoko Miyabe , Shingo Hamaguchi
发明人： Koichi Tezuka , Kyoko Miyabe , Shingo Hamaguchi
IPC分类号： G11B7/09 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/131 , G11B11/10576 , G11B7/0901 , G11B7/0908 , G11B7/0916 , G11B7/094 , G11B7/123 , G11B7/127 , G11B7/1353
摘要： An optical information recording-and-reproducing unit includes a diffraction section provided with a reflected optical beam reflected on a storage medium. The diffraction section has at least first and second areas, and from each of the first and second areas, a +1-order diffraction light and a -1-order diffraction light are produced. The unit further includes first and second optical detection sections respectively provided with one of a pair of +1-order diffraction lights and a pair of -1-order diffraction lights produced from the first and second areas of the diffraction section. The unit still further includes a first circuit section for generating a tracking error signal based on output signals of the first and second optical detection sections. In the unit, the light provided to the first optical detection section forms a first spot in a far-field state before convergence, and the light provided to the second optical detection section forms a second spot in a far-field state after convergence.
摘要翻译：光信息记录和再现单元包括具有在存储介质上反射的反射光束的衍射部分。衍射部分至少具有第一和第二区域，并且从第一和第二区域中的每一个产生+ 1级衍射光和-1级衍射光。该单元还包括分别设置有一对+ 1级衍射光和从衍射部的第一和第二区域产生的一对-1级衍射光中的一个的第一和第二光学检测部。该单元还包括用于基于第一和第二光学检测部分的输出信号产生跟踪误差信号的第一电路部分。在该单元中，提供给第一光学检测部的光在会聚之前形成处于远场状态的第一光点，并且提供给第二光检测部的光在会聚后形成远场状态的第二光点。

3. 发明授权

US06185166B2 Optical information recording/reproducing apparatus 失效
公开(公告)号：US06185166B2
公开(公告)日：2001-02-06
申请号：US08993703
申请日：1997-12-18
申请人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki , Kazushi Uno
发明人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki , Kazushi Uno
IPC分类号： G11B7095
CPC分类号： G11B7/131 , G11B7/0901 , G11B7/0903 , G11B7/0908 , G11B7/0912 , G11B7/0916 , G11B7/094 , G11B7/0943 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1381 , G11B11/10543 , G11B11/10576 , G11B11/10597
摘要： An optical information recording/reproducing apparatus records information on and/or reproduces information from an optical recording medium based on a reflected light beam from the optical recording medium. The apparatus includes a light splitting part having a plurality of light splitting stages which split the reflected light beam from the optical recording medium into a plurality of light beams, and a photodetector unit including a plurality of photodetectors which receive the plurality of light beams from the light splitting part. The photodetector unit includes a plurality of photodetectors which receive light beams used to detect a focal error, at least one photodetector which receives a light beam used to detect a tracking error, and a plurality of photodetectors which receive light beams used to detect magneto-optic information recorded on the optical recording medium.

4. 发明授权

US5793725A Optical information recording/reproducing apparatus having a composite prism with a plurality of emission surfaces 失效
标题翻译：具有具有多个发射面的复合棱镜的光信息记录/重放装置
公开(公告)号：US5793725A
公开(公告)日：1998-08-11
申请号：US742764
申请日：1996-11-01
申请人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki
发明人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/131 , G11B11/10543 , G11B11/10576 , G11B11/10597 , G11B7/0903 , G11B7/0908 , G11B7/0916 , G11B7/094 , G11B7/0943 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1381
摘要： An optical information recording/reproducing apparatus records information on and/or reproduces information from an optical recording medium and detects a focal error based on a reflected light beam from the optical recording medium. The apparatus includes a composite prism which deflects a part of the reflected light beam to at least two positions excluding a central part of the reflected light beam, and a photodetector device having a plurality of photodetectors which respectively detect the deflected parts of the reflected light beam and output detection outputs. The focal error is detected based on the detection outputs of the photodetector device.
摘要翻译：光学信息记录/再现装置从光学记录介质记录信息和/或再现信息，并且基于来自光学记录介质的反射光束来检测焦点误差。该装置包括将反射光束的一部分偏转到除了反射光束的中心部分之外的至少两个位置的复合棱镜，以及具有多个光电检测器的光电检测器件，其分别检测反射光束的偏转部分并输出检测输出。基于光检测器件的检测输出来检测焦点误差。

5. 发明授权

US5600618A Optical data recording/reproducing device and integrated head 失效
标题翻译：光学数据记录/再现装置和集成头
公开(公告)号：US5600618A
公开(公告)日：1997-02-04
申请号：US416044
申请日：1995-04-04
申请人： Koichi Tezuka , Kyoko Miyabe
发明人： Koichi Tezuka , Kyoko Miyabe
IPC分类号： G11B7/09 , G11B7/12 , G11B7/135 , G11B7/00
CPC分类号： G11B7/0916 , G11B7/094 , G11B7/123 , G11B7/1356 , G11B7/1362
摘要： An optical data recording/reproducing device, wherein the number of reflection in an optical path of coherent light formed between a coherent light source and an optical disk is twice or a larger even number of times, and the array direction of the coherent light source and photodetectors is substantially parallel to the face of the optical disk, resulting in a smaller size in the direction corresponding to the thickness of the optical disk.
摘要翻译：一种光学数据记录/再现装置，其中在相干光源和光盘之间形成的相干光的光路中的反射次数是偶数倍的两倍或更大，并且相干光源的阵列方向和光电检测器基本上平行于光盘的表面，导致在对应于光盘厚度的方向上的较小的尺寸。

6. 发明授权

US06339564B2 Optical information recording/reproducing apparatus 失效
标题翻译：光信息记录/重放装置
公开(公告)号：US06339564B2
公开(公告)日：2002-01-15
申请号：US09734217
申请日：2000-12-12
申请人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki , Kazushi Uno
发明人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki , Kazushi Uno
IPC分类号： G11B7095
CPC分类号： G11B7/131 , G11B7/0901 , G11B7/0903 , G11B7/0908 , G11B7/0912 , G11B7/0916 , G11B7/094 , G11B7/0943 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1381 , G11B11/10543 , G11B11/10576 , G11B11/10597
摘要： An optical information recording/reproducing apparatus records information on and/or reproduces information from an optical recording medium based on a reflected light beam from the optical recording medium. The apparatus includes a light splitting part having a plurality of light splitting stages which split the reflected light beam from the optical recording medium into a plurality of light beams, and a photodetector unit including a plurality of photodetectors which receive the plurality of light beams from the light splitting part. The photodetector unit includes a plurality of photodetectors which receive light beams used to detect a focal error, at least one photodetector which receives a light beam used to detect a tracking error, and a plurality of photodetectors which receive light beams used to detect magneto-optic information recorded on the optical recording medium.
摘要翻译：光信息记录/再现装置基于来自光记录介质的反射光束从光记录介质记录信息和/或再现信息。该装置包括具有多个分光台的分光部，该多个分光台将来自光记录介质的反射光束分成多个光束;以及光检测器单元，包括多个光电检测器，其接收来自该光束的多个光束分光部分。光检测器单元包括多个光电检测器，其接收用于检测焦点误差的光束，至少一个接收用于检测跟踪误差的光束的光电检测器，以及接收用于检测磁光的光束的多个光电检测器记录在光学记录介质上的信息。

7. 发明授权

US5742572A Optical information recording/reproducing apparatus which detects focal error 失效
标题翻译：检测焦点误差的光信息记录/再现装置
公开(公告)号：US5742572A
公开(公告)日：1998-04-21
申请号：US806706
申请日：1997-02-27
申请人： Koichi Tezuka , Kyoko Miyabe
发明人： Koichi Tezuka , Kyoko Miyabe
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/131 , G11B11/10543 , G11B11/10576 , G11B11/10597 , G11B7/0903 , G11B7/0908 , G11B7/0916 , G11B7/094 , G11B7/0943 , G11B7/1353 , G11B7/1356 , G11B7/1381
摘要： An optical information recording/reproducing apparatus records information on and/or reproduces information from an optical recording medium and detects a focal error based on a reflected light beam from the optical recording medium. The apparatus includes an optical element which deflects a part of the reflected light beam to at least two positions excluding a central part of the reflected light beam, and a photodetector device having a plurality of photodetectors which respectively detect the deflected parts of the reflected light beam and output detection outputs. The focal error is detected based on the detection outputs of the photodetector device.
摘要翻译：光学信息记录/再现装置从光学记录介质记录信息和/或再现信息，并且基于来自光学记录介质的反射光束来检测焦点误差。该装置包括将反射光束的一部分偏转到除了反射光束的中心部分之外的至少两个位置的光学元件，以及具有多个光电检测器的光电检测器件，其分别检测反射光束的偏转部分并输出检测输出。基于光检测器件的检测输出来检测焦点误差。

8. 发明授权

US5623462A Optical information recording/reproducing apparatus 失效
标题翻译：光信息记录/重放装置
公开(公告)号：US5623462A
公开(公告)日：1997-04-22
申请号：US513578
申请日：1995-08-10
申请人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki
发明人： Koichi Tezuka , Kyoko Miyabe , Satoshi Itami , Tohru Fujimaki
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B11/105 , C11B7/00
CPC分类号： G11B7/131 , G11B11/10543 , G11B11/10576 , G11B11/10597 , G11B7/0903 , G11B7/0908 , G11B7/0916 , G11B7/094 , G11B7/0943 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1381
摘要： An optical information recording/reproducing apparatus records information on and/or reproduces information from an optical recording medium and detects a focal error based on a reflected light beam from the optical recording medium. The apparatus includes a composite prism which deflects a part of the reflected light beam to at least two positions excluding a central part of the reflected light beam, and a photodetector device having a plurality of photodetectors which respectively detect the deflected parts of the reflected light beam and output detection outputs. The focal error is detected based on the detection outputs of the photodetector device.
摘要翻译：光学信息记录/再现装置从光学记录介质记录信息和/或再现信息，并且基于来自光学记录介质的反射光束来检测焦点误差。该装置包括将反射光束的一部分偏转到除了反射光束的中心部分之外的至少两个位置的复合棱镜，以及具有多个光电检测器的光电检测器件，其分别检测反射光束的偏转部分并输出检测输出。基于光检测器件的检测输出来检测焦点误差。

9. 发明授权

US5610895A Optical head having light blocking means positioned in front of a detector for super-resolution detection 失效
标题翻译：具有位于检测器前方的遮光装置的光学头用于超分辨率检测
公开(公告)号：US5610895A
公开(公告)日：1997-03-11
申请号：US604362
申请日：1996-02-21
申请人： Haruhiko Izumi , Kyoko Miyabe
发明人： Haruhiko Izumi , Kyoko Miyabe
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/135 , G11B11/105
CPC分类号： G11B7/005 , G11B11/10543 , G11B7/1381 , G11B7/0045
摘要： An optical head includes a lens system forming light reflected from an optical disk into parallel rays, a focal error and tracking error detection system detecting focal error and tracking error based on the parallel rays, an optical reproduced signal detection system detecting a reproduced signal reproduced from the optical disk based on the parallel rays, and a light blocking part for blocking, out of the parallel rays, at least a central portion in a light amplitude distribution of parallel rays supplied to the optical reproduced signal detection system.
摘要翻译：光学头包括将从光盘反射的光转换为平行光的透镜系统，基于平行光检测焦点误差和跟踪误差的焦点误差和跟踪误差检测系统，检测从基于平行光线的光盘，以及用于阻挡平行射线中至少一个供给光学再现信号检测系统的平行光的光振幅分布中的中心部分的遮光部分。

10. 发明授权

US5402411A Constant amplitude of tracking error signals generated from a head guide track and a performed track 失效
标题翻译：从头导轨和执行轨迹产生的跟踪误差信号的恒定幅度
公开(公告)号：US5402411A
公开(公告)日：1995-03-28
申请号：US25637
申请日：1993-03-02
申请人： Miyozo Maeda , Mineo Moribe , Susumu Satoh , Kyoko Miyabe
发明人： Miyozo Maeda , Mineo Moribe , Susumu Satoh , Kyoko Miyabe
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/26 , G11B11/105 , G11B27/19 , G11B27/24 , G11B27/30
CPC分类号： G11B7/00745 , G11B11/10565 , G11B11/10576 , G11B11/10578 , G11B11/10597 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B7/00718 , G11B7/00736 , G11B7/0938 , G11B7/261 , G11B7/0901
摘要： An optical disk is adapted for use in an optical disk unit which irradiates a light beam spot on a target track on the optical disk and controls tracking of the light beam spot based on a tracking error signal which is generated based on a reflected light beam from the optical disk. The optical disk includes a disk shaped substrate, a spiral or concentric guide tracks provided on the substrate, a writable region provided on the substrate between two mutually adjacent track turns of the guide track, and a preformed track provided within the guide track and prerecorded with read-only information in a form of variations of a topological feature. The guide track and the topological feature have mutually different height positions so that a tracking error signal which is generated when the light beam spot scans the guide track has the same amplitude as a tracking error signal which is generated when the light beam spot scans the preformed track, and the height positions of the guide track and the topological feature are different from a height position which generates a maximum tracking error signal amplitude when scanned by the light beam spot.
摘要翻译：光盘适用于在光盘上照射光束点的光盘单元，该光盘单元基于基于从...的反射光束产生的跟踪误差信号来控制光束点的跟踪光盘。光盘包括盘形基板，设置在基板上的螺旋或同心引导轨道，设置在基板上的可引导区域，该可写入区域位于引导轨道的两个相互相邻的轨道之间，以及设置在引导轨道内并预先记录拓扑特征变体形式的只读信息。引导轨道和拓扑特征具有相互不同的高度位置，使得当光束点扫描导轨时产生的跟踪误差信号具有与当光束点扫描预成形件时产生的跟踪误差信号相同的幅度轨道，导轨和拓扑特征的高度位置不同于当由光束点扫描时产生最大跟踪误差信号幅度的高度位置。

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