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21. 再颁专利

USRE39447E1 Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses 有权
公开(公告)号：USRE39447E1
公开(公告)日：2006-12-26
申请号：US09609699
申请日：1999-11-22
申请人： Naoyasu Miyagawa , Yasuhiro Gotoh
发明人： Naoyasu Miyagawa , Yasuhiro Gotoh
IPC分类号： G11B7/00
CPC分类号： G11B7/085 , G11B7/0037 , G11B7/08505 , G11B7/12 , G11B7/124 , G11B7/1245 , G11B7/1353 , G11B7/1374 , G11B7/1378 , G11B7/13925 , G11B19/12 , G11B23/0302 , G11B23/30 , G11B2007/0006
摘要： An optical disc apparatus for recording, reproducing or erasing an information signal by converging a light flux onto a recording layer through a transparent substrate. The apparatus includes one or a plurality of optical heads having a plurality of objective lenses whose aberrations have respectively been corrected for a plurality of disc substrates of different thicknesses, a cartridge for enclosing the optical disc, a discrimination hole which is formed on the cartridge, and a sensor for detecting the opening/closing state of the discrimination hole and for generating a discrimination signal. In accordance with the result of the discrimination as to the thickness of the loaded optical disc, the objective lens, in which the occurrence of the aberration is smallest, is used, so that the information signal can preferably be recorded, reproduced or erased onto/from the optical discs having different substrate thicknesses. Instead of an optical head having objective lenses, an optical head having a waveguide and a plurality of converging grating couplers whose aberrations have respectively been corrected for a plurality of disc substrates of different thicknesses is provided to achieve the same object. An optical recording/reproducing apparatus for recording, reproducing or erasing an information signal onto/from an optical disc having at least a transparent substrate and an information layer by converging a light flux on the information layer through the transparent substrate. The apparatus includes optical converging devices, with different numerical apertures, focal distances or working distances, such as objective lenses or grating lenses, for performing aberration correction over a plurality of transparent substrates of different thicknesses of optical discs and a device for discriminating the type of optical disc based on the thicknesses of the transparent substrates. One of the optical converging devices that generates the least aberration is used according to a result of the discrimination of the thickness of the optical disk loaded in the apparatus to cause the information signal to be suitably recorded, reproduced or erased onto/from the optical discs having the different substrate thicknesses.

22. 发明申请

US20050230647A1 Method and apparatus for detecting foriegn body on object surface, and optical disk apparatus 失效
标题翻译：用于检测物体表面上的物体的方法和装置以及光盘装置
公开(公告)号：US20050230647A1
公开(公告)日：2005-10-20
申请号：US10516023
申请日：2003-05-30
申请人： Yasuhiro Gotoh , Seiji Nishiwaki , Yoshiaki Komma
发明人： Yasuhiro Gotoh , Seiji Nishiwaki , Yoshiaki Komma
IPC分类号： G01N21/90 , G01N21/94 , G01N21/95 , G11B7/0037 , G11B19/04 , G01N21/88
CPC分类号： G11B7/00375 , G01N21/94 , G01N21/9506 , G01N2201/1045 , G11B19/04
摘要： In an foreign body detection apparatus, an optical signal detection unit (1) irradiates a light spot onto a surface of an object to be inspected while scanning the surface by the light spot in a predetermined direction, and receives a reflected beam from the surface of the inspected object to generate a photodetection signal (HF) corresponding to the light intensity of the reflected beam. A foreign body detection unit (2a to 2h) generates a foreign body detection signal (C) appearing with respect to a leader and a trailer in the scanning direction of a foreign body adhering to the inspected object from the photodetection signal (HF). The foreign body detection signal is obtained for example as a difference signal between the photodetection signal (HF) and the delayed photodetection signal (HF) with a predetermined delay time. A foreign body discrimination unit (3) generates a foreign body discriminating signal (H) indicating a region in which the foreign body is present from the foreign body detection signal (C).
摘要翻译：在异物检测装置中，光信号检测单元（1）在预定方向上通过光点扫描表面而将光斑照射到待检查对象的表面上，并且从表面接收反射光束被检查对象以产生对应于反射光束的光强度的光电检测信号（HF）。异物检测单元（2 a〜2 h）从光检测信号（HF）生成与检测对象物附近的异物的扫描方向上的引导部和拖车相对的异物检测信号（C）。异物检测信号例如作为光检测信号（HF）和延迟光检测信号（HF）之间的差信号以预定的延迟时间获得。异物识别单元（3）从异物检测信号（C）生成表示异物存在的区域的异物识别信号（H）。

23. 发明授权

US06791681B2 Apparatus and method for determining existence range of foreign substance 失效
标题翻译：用于确定异物存在范围的装置和方法
公开(公告)号：US06791681B2
公开(公告)日：2004-09-14
申请号：US10172084
申请日：2002-06-13
申请人： Yasuhiro Gotoh , Seiji Nishiwaki
发明人： Yasuhiro Gotoh , Seiji Nishiwaki
IPC分类号： G01N2100
CPC分类号： G11B33/1446 , G01N21/94 , G01N21/9506
摘要： An apparatus for determining an existence range of a foreign substance which is present on a surface of an object, includes: an optical system including a light source for emitting a light beam on to the surface of the object; a movement section for relatively moving the object with respect to the light beam; a light detection section for detecting a light quantity of the light beam reflected by the surface of the object to generate a light detection signal which indicates the light quantity; a difference signal generation section for generating a difference signal; a perimeter signal generation section for comparing the difference signal with a reference value to generate a perimeter signal; and a foreign substance determination section for determining an existence range of the foreign substance using the perimeter signal.
摘要翻译：一种用于确定存在于物体表面上的异物的存在范围的装置，包括：光学系统，包括用于将光束发射到物体表面的光源; 用于相对于所述光束相对移动所述物体的运动部分; 光检测部分，用于检测由物体表面反射的光束的光量，以产生指示光量的光检测信号; 差信号生成部，用于产生差分信号; 周边信号生成部分，用于将差分信号与参考值进行比较以产生周边信号; 以及异物判定部，其使用周边信号来确定异物的存在范围。

24. 发明授权

US6118752A Optical information recording medium offset pre-pit array indicating identification information 失效
标题翻译：光信息记录介质偏移预坑阵列指示识别信息
公开(公告)号：US6118752A
公开(公告)日：2000-09-12
申请号：US674583
申请日：1996-07-02
申请人： Naoyasu Miyagawa , Yasuhiro Gotoh
发明人： Naoyasu Miyagawa , Yasuhiro Gotoh
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/24 , G11B7/24079 , G11B7/24085 , G11B11/105
CPC分类号： G11B7/0938 , G11B7/00718 , G11B7/00745 , G11B7/0904 , G11B7/24085 , G11B11/10586 , G11B7/0045 , G11B7/005 , G11B7/24 , G11B7/24079
摘要： An optical information recording medium according to the present invention includes at least one groove track and at least one land track allowing information to be recorded on or reproduced from the groove track and the land track, the groove track and the land track adjoining each other. The optical information recording medium further includes: an identification signal region including a pre-pit array, the pre-pit array indicating identification information concerning the groove track and the land track; and a servo control region disposed ahead of the identification signal region along the groove track and the land track, the servo control region including wobble pits positioned so as to shift to opposite sides of a center line of either the groove track or the land track.
摘要翻译：根据本发明的光学信息记录介质包括至少一个凹槽轨道和至少一个脊迹道，其允许将信息记录在凹槽轨道和脊迹道，凹槽轨道和脊迹道之间彼此相邻的凹槽轨迹和/ 所述光信息记录介质还包括：包括预凹坑阵列的识别信号区域，所述预凹坑阵列指示关于所述凹槽轨道和所述脊迹轨迹的识别信息; 以及伺服控制区域，其设置在沿着凹槽轨道和槽脊轨迹的识别信号区域前方，所述伺服控制区域包括摆动凹坑，定位成移动到凹槽轨道或槽脊轨迹的中心线的相对侧。

25. 发明授权

US5452284A Optical recording/reproducing medium and apparatus using land and groove encoded information signals and identification signals including position information 失效
标题翻译：光记录/再现介质和使用平面和凹槽编码信息信号的装置和包括位置信息的识别信号
公开(公告)号：US5452284A
公开(公告)日：1995-09-19
申请号：US120216
申请日：1993-09-13
申请人： Naoyasu Miyagawa , Yasuhiro Gotoh
发明人： Naoyasu Miyagawa , Yasuhiro Gotoh
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/085 , G11B7/09 , G11B7/095 , G11B19/04 , G11B27/19 , G11B27/24 , G11B27/30 , G11B7/00
CPC分类号： G11B7/24085 , G11B19/04 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/08505 , G11B7/0941 , G11B2220/20 , G11B7/0045 , G11B7/0901 , G11B7/0953 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： Both concave and convex portions formed spirally or concentrically on an optical information recording medium are used as recording tracks, in which identification signals including position information on the optical information recording medium and so on are recorded in advance, and information signals are recorded by use of the change of a local optical constant or a physical shape caused by radiating a light beam. The identification signals are disposed in recording tracks of the concave portions, and shifted before and behind in the track direction so as not to be adjacent to each other in the radial direction.
摘要翻译：使用螺旋状或同心地形成在光学信息记录介质上的凹凸部分作为记录磁道，其中预先记录包括关于光学信息记录介质等的位置信息的识别信号，并且使用通过辐射光束引起的局部光学常数或物理形状的变化。识别信号被设置在凹部的记录轨道中，并且在轨道方向上前后移动，以便在径向方向上彼此不相邻。

26. 发明授权

US5616390A Optical recording medium permitting detection of identification signals in land areas and groove areas, optical information recording/reproducing apparatus and apparatus for producing an original disk for forming a disk substrate 失效
标题翻译：允许检测陆地区域和沟槽区域中的识别信号的光学记录介质，光学信息记录/再现装置和用于制造用于形成盘基板的原始盘的装置
公开(公告)号：US5616390A
公开(公告)日：1997-04-01
申请号：US503846
申请日：1995-07-18
申请人： Naoyasu Miyagawa , Yasuhiro Gotoh
发明人： Naoyasu Miyagawa , Yasuhiro Gotoh
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/085 , G11B7/09 , G11B7/095 , G11B19/04 , G11B27/19 , G11B27/24 , G11B27/30 , B32B3/00
CPC分类号： G11B7/24085 , G11B19/04 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/08505 , G11B7/0941 , G11B2220/20 , G11B7/0045 , G11B7/0901 , G11B7/0953 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： An optical information recording medium is configured so that grooves and lands formed spirally or concentrically on a disk substrate are used as recording tracks. Identification signal areas are provided in which identification signals including positional information are formed in advance on the disk substrate. Information signal areas are formed separately from the identification signal areas so that information signals are recorded by irradiation with a light beam. The identification signals are formed on the grooves and lands not independently of each other, but so that each identification signal is formed so as to be shared by a respective adjacent groove and land. The period of arrangement of the identification signals in the radial direction of the recording tracks is twice the period of the recording tracks and crosstalk at the time of reproduction of the identification signals is suppressed. Accordingly, the identification signals can be reproduced well even where each of the identification signals is recorded both on a land and on a groove.
摘要翻译：光学信息记录介质被配置为使得在盘基片上螺旋或同心地形成的凹槽和平台用作记录轨道。提供识别信号区域，其中预先在盘基片上形成包括位置信息的识别信号。信息信号区域与识别信号区域分开形成，以便通过用光束照射来记录信息信号。识别信号彼此独立地形成在沟槽和沟槽上，但是每个识别信号形成为由各个相邻的沟槽和平台共享。识别信号在记录磁道的径向上的布置周期是记录磁道周期的两倍，并且抑制了识别信号再现时的串扰。因此，即使在陆地和凹槽上都记录了每个识别信号也能够良好地再现识别信号。

27. 发明授权

US5235581A Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses 失效
标题翻译：用于光盘的光学记录/再现装置，具有各种不同的磁盘基板厚度
公开(公告)号：US5235581A
公开(公告)日：1993-08-10
申请号：US740629
申请日：1991-08-05
申请人： Naoyasu Miyagawa , Yasuhiro Gotoh
发明人： Naoyasu Miyagawa , Yasuhiro Gotoh
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/085 , G11B7/12 , G11B7/135 , G11B19/12 , G11B23/03 , G11B23/30
CPC分类号： G11B7/085 , G11B19/12 , G11B23/0302 , G11B23/30 , G11B7/0037 , G11B7/08505 , G11B7/12 , G11B7/124 , G11B7/1245 , G11B7/1353 , G11B7/1374 , G11B7/1378 , G11B7/13925 , G11B2007/0006
摘要： An optical disc apparatus for recording, reproducing or erasing an information signal by converging a light flux onto a recording layer through a transparent substrate. The apparatus includes one or a plurality of optical heads having a plurality of objective lenses whose aberrations have respectively been corrected for a plurality of disc substrates of different thicknesses, a cartridge for enclosing the optical disc, a discrimination hole which is formed on the cartridge, and a sensor for detecting the opening/closing state of the discrimination hole and for generating a discrimination signal. In accordance with the result of the discrimination as to the thickness of the loaded optical disc, the objective lens, in which the occurrence of the aberration is smallest, is used, so that the information signal can preferably be recorded, reproduced or erased onto/from the optical discs having different substrate thicknesses. Instead of an optical head having objective lenses, an optical head having a waveguide and a plurality of converging grating couplers whose aberrations have respectively been corrected for a plurality of disc substrates of different thicknesses is provided to achieve the same object.

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