-
公开(公告)号：US06442125B1
公开(公告)日：2002-08-27
申请号：US09245892
申请日：1999-02-08
IPC分类号： G11B700
CPC分类号： G11B7/133 , G11B7/1353 , G11B7/1372 , G11B2007/0013
摘要： In an optical pickup, the focal position of the reflected light from the information bearing surface where information is to be reproduced and that of the reflected light from other information bearing surfaces are adjusted by an optical device such that the two reflected light components are separated optically.
摘要翻译： 在光学拾取器中，通过光学装置调整来自信息承载面的反射光的焦点位置以及来自其他信息承载面的反射光的反射光，使得两个反射光成分被光学地分离 。
-
2.发明授权Optical pickup and optical disk drive for use with a high-density optical disk 失效用于高密度光盘的光学拾取器和光盘驱动器公开(公告)号：US06370092B1
公开(公告)日：2002-04-09
申请号：US09239714
申请日：1999-01-29
IPC分类号： G11B709
CPC分类号： G11B7/1353 , G11B7/005 , G11B7/0901 , G11B7/131 , G11B7/1392
摘要： An optical pickup for reading information from a recording medium comprises a light illuminating portion for illuminating a plurality of light beams having different wavefronts onto a recording surface of the recording medium to create a plurality of light spots including a first light spot and a second light spot. The first and second light spots at least partially overlap with each other. A detector receives light beams reflected by the recording medium. The detector has a first light-receiving surface for receiving reflected light of the first light spot and a second light-receiving surface for receiving reflected light of the second light spot.
摘要翻译： 用于从记录介质读取信息的光学拾取器包括用于将具有不同波前的多个光束照射到记录介质的记录表面上的光照射部分，以产生包括第一光点和第二光点的多个光点 。 第一和第二光点彼此至少部分重叠。 检测器接收由记录介质反射的光束。 检测器具有用于接收第一光点的反射光的第一光接收表面和用于接收第二光斑的反射光的第二光接收表面。
-
公开(公告)号：US5572493A
公开(公告)日：1996-11-05
申请号：US467024
申请日：1995-06-06
CPC分类号： G11B7/14
摘要： Optical disk information recording apparatus and reproducing apparatus are designed to efficiently improve the transfer rate in information recording and reproduction, and have compatibility with the existing recording apparatus and reproducing apparatus using a single light beam while keeping the disk form with a single spiral track structure. Beam spots are simultaneously irradiated on a plurality of different radial positions on a disk at a pitch of a predetermined number of tracks to independently record various information signals, and the optical head is allowed to jump over a predetermined number of tracks every time the disk makes a predetermined number of turns. Another feature lies in that beam spots are simultaneously irradiated on a plurality of different radial positions on a disk at a pitch of a predetermined number of tracks to independently record various information signals, and a jump over a predetermined number of tracks is made in a predetermined interval corresponding to a period from the point where each light beam has made a track jump during which period signals are stably reproducible or recordable.
-
公开(公告)号：US5889752A
公开(公告)日：1999-03-30
申请号：US883578
申请日：1997-06-26
申请人： Takanori Maeda , Hajime Koyanagi
发明人： Takanori Maeda , Hajime Koyanagi
CPC分类号： G11B20/22 , G11B7/005 , G11B7/0956 , G11B7/14
摘要： An optical pickup apparatus for properly detecting crosstalk amounts to a read signal for one track from adjacent tracks thereof and their balance. A difference between a second read signal value for one track at a time point when a first read signal value for one adjacent track is smaller than a first threshold value and a third read signal value for the other adjacent track is larger than a second threshold value and a second read signal value at a time point when the first read signal value is larger than the second threshold value and the third read signal value is smaller than the first threshold value is formed as a value indicative of a balance level of crosstalks to the second read signal. A difference between a second read signal value at a time point when the first read signal value is larger than the second threshold value and the third read signal value is larger than the second threshold value and a second read signal value at a time point when the first read signal value is smaller than the first threshold value and the third read signal value is smaller than the first threshold value is formed as a value indicative of a crosstalk amount to the second read signal.
摘要翻译： 用于适当地检测串扰的光学拾取装置相当于来自其相邻轨道的一个轨道的读取信号及其平衡。 当一个相邻磁道的第一读取信号值小于第一阈值的时间点的一个磁道的第二读取信号值与另一个相邻磁道的第三读取信号值之间的差大于第二阈值 并且在第一读取信号值大于第二阈值且第三读取信号值小于第一阈值的时间点处的第二读取信号值被形成为表示与第一阈值的串扰的平衡水平的值 第二读信号。 当第一读取信号值大于第二阈值的时间点处的第二读取信号值和第三读取信号值之间的差值大于第二阈值时的第二读取信号值和在 第一读取信号值小于第一阈值，并且第三读取信号值小于第一阈值形成为指示与第二读取信号的串扰量的值。
-
公开(公告)号：US5784345A
公开(公告)日：1998-07-21
申请号：US791042
申请日：1997-01-28
申请人： Takanori Maeda , Hajime Koyanagi
发明人： Takanori Maeda , Hajime Koyanagi
CPC分类号： G11B7/1359 , G11B7/0903 , G11B7/127 , G11B7/1353 , G11B7/1398 , G11B2007/13727
摘要： An optical pickup device for writing or reading data from an optical information recording medium has a recording layer whose state changes in response to a density of intensity of an irradiated light beam and a track being used for a tracking servo control system. The device includes a first light spot irradiating element for irradiating a writing or reading light beam onto the recording layer to form a writing or reading spot and a second light spot irradiating element for irradiating at least one controlling light beam onto the recording layer to form a controlling spot having a major axis extending along the track and being longer than a transverse axis perpendicular to the major axis within a level of luminous flux density keeping an original state of the recording layer, whereby a tracking servo control signal having a sufficient level is obtained.
摘要翻译： 用于从光学信息记录介质写入或读取数据的光学拾取装置具有响应于照射光束的密度和用于跟踪伺服控制系统的轨道的状态而改变的记录层。 该装置包括用于将写入或读取光束照射到记录层上以形成书写或读取点的第一光点照射元件和用于将至少一个控制光束照射到记录层上的第二光点照射元件，以形成 控制光斑具有在轨道上延伸的长轴，并且在保持记录层原始状态的光通量密度水平内比长轴垂直的横轴更长，从而获得具有足够电平的跟踪伺服控制信号 。
-
6.发明授权Optical pickup device with three beam tracking servo control using oval beams 失效采用椭圆形光束的三光束跟踪伺服控制的光学拾取装置
公开(公告)号：US5633844A
公开(公告)日：1997-05-27
申请号：US364185
申请日：1994-12-27
申请人： Takanori Maeda , Hajime Koyanagi
发明人： Takanori Maeda , Hajime Koyanagi
CPC分类号： G11B7/1359 , G11B7/0903 , G11B7/127 , G11B7/1353 , G11B7/1398 , G11B2007/13727
摘要： An optical pickup device for writing or reading data from an optical information recording medium has a recording layer whose state changes in response to a density of intensity of an irradiated light beam and a track being used for a tracking servo control system. The device includes a first light spot irradiating element for irradiating a writing or reading light beam onto the recording layer to form a writing or reading spot and a second light spot irradiating element for irradiating at least one controlling light beam onto the recording layer to form a controlling spot having a major axis extending along the track and being longer than a transverse axis perpendicular to the major axis within a level of luminous flux density keeping an original state of the recording layer, whereby a tracking servo control signal having a sufficient level is obtained.
摘要翻译： 用于从光学信息记录介质写入或读取数据的光学拾取装置具有响应于照射光束的密度和用于跟踪伺服控制系统的轨道的状态而改变的记录层。 该装置包括用于将写入或读取光束照射到记录层上以形成书写或读取点的第一光点照射元件和用于将至少一个控制光束照射到记录层上的第二光点照射元件，以形成 控制光斑具有在轨道上延伸的长轴，并且在保持记录层原始状态的光通量密度水平内比长轴垂直的横轴更长，从而获得具有足够电平的跟踪伺服控制信号 。
-
7.发明授权Optical disk information recording apparatus and reproducing apparatus having a plurality of read or write beams 失效具有多个读取或写入光束的光盘信息记录装置和再现装置
公开(公告)号：US5457670A
公开(公告)日：1995-10-10
申请号：US162842
申请日：1993-12-07
CPC分类号： G11B7/14
摘要： Optical disk information recording apparatus and reproducing apparatus are designed to efficiently improve the transfer rate in information recording and reproduction, and have compatibility with the existing recording apparatus and reproducing apparatus using a single light beam while keeping the disk form with a single spiral track structure. Beam spots are simultaneously irradiated on a plurality of different radial positions on a disk at a pitch of a predetermined number of tracks to independently record various information signals, and the optical head is allowed to jump over a predetermined number of tracks every time the disk makes a predetermined number of turns. Another feature lies in that beam spots are simultaneously irradiated on a plurality of different radial positions on a disk at a pitch of a predetermined number of tracks to independently record various information signals, and a jump over a predetermined number of tracks is made in a predetermined interval corresponding to a period from the point where each light beam has made a track jump during which period signals are stably reproducible or recordable.
摘要翻译： 光盘信息记录装置和再现装置被设计为有效地提高信息记录和再现中的传送速率，并且与使用单个光束的现有记录装置和再现装置兼容，同时保持盘形式具有单个螺旋轨道结构。 光束同时以预定数量的轨道的间距在盘上的多个不同的径向位置上照射，以独立地记录各种信息信号，并且每次磁盘制造时允许光头跳过预定数量的磁道 预定圈数。 另一个特征在于，以预定数量的轨道的间距在光盘上的多个不同的径向位置上同时照射光束斑点，以独立地记录各种信息信号，并且以预定的数量的轨迹跳过预定的 间隔对应于从每个光束已经进行轨道跳跃的点的周期，在该周期期间信号是稳定可重现的或可记录的。
-
公开(公告)号：US07750296B2
公开(公告)日：2010-07-06
申请号：US11866426
申请日：2007-10-03
CPC分类号： H01J37/28 , H01J37/265 , H01J2237/2826
摘要： In method and apparatus for obtaining a scanning electron microscope image devoid of distortion by measuring a scanning distortion and calibrating the scanning distortion, there occurs a problem that an error takes place in dimension control owing to a scanning distortion of an electron beam. To cope with this problem, an image is obtained by scanning a predetermined region with the electron beam, a plurality of regions are selected from the image, the pattern pitch is measured in each of the regions and a scanning distortion amount is calculated from the result of measurement and then corrected.
摘要翻译： 在通过测量扫描失真和校准扫描失真来获得没有失真的扫描电子显微镜图像的方法和装置中，存在由于电子束的扫描失真引起的尺寸控制中出现误差的问题。 为了解决这个问题，通过用电子束扫描预定区域来获得图像，从图像中选择多个区域，在每个区域中测量图案间距，并根据结果计算扫描失真量 的测量，然后校正。
-
9.发明授权Precision machining method precision machining apparatus and data storage apparatus using the same 失效精密加工方法精密加工装置及使用其的数据存储装置
公开(公告)号：US5627815A
公开(公告)日：1997-05-06
申请号：US521925
申请日：1995-08-31
申请人： Hajime Koyanagi , Sumio Hosaka , Ryo Imura
发明人： Hajime Koyanagi , Sumio Hosaka , Ryo Imura
IPC分类号： B82B3/00 , G01Q30/02 , G01Q60/00 , G01Q60/10 , G01Q60/12 , G01Q60/18 , G01Q60/24 , G01Q60/40 , G01Q60/56 , G01Q60/58 , G01Q70/14 , G01Q80/00 , G11B9/00 , G11B9/14 , G11B11/00 , G11B11/03 , H01J37/28 , H01J37/30 , G21K5/10
CPC分类号： B82B3/00 , B82Y10/00 , B82Y30/00 , B82Y40/00 , G11B11/007 , G11B9/14 , G11B9/1409 , G11B9/1418 , G11B9/1445 , G11B9/149 , G11B11/03 , G11B2005/0021 , H01J2237/31738 , Y10S977/856 , Y10S977/857 , Y10S977/86 , Y10S977/875 , Y10S977/879 , Y10S977/947
摘要： A method and apparatus for precision machining a surface suitable for use as a data recorder, using a scanning probe microscope (SPM) capable of observing an electrically insulating surface. The SPM includes a probe which comprises a tip having a pointed end, and also including a conductive layer applied on a surface of the tip. The tip is brought into close proximity to the surface which is to be machined and a machining voltage is applied between the tip and the surface to machine the surface.
摘要翻译： 一种用于使用能够观察电绝缘表面的扫描探针显微镜（SPM）来精密加工适于用作数据记录器的表面的方法和装置。 SPM包括探针，其包括具有尖端的尖端，并且还包括施加在尖端的表面上的导电层。 尖端被接近要加工的表面，并且在尖端和表面之间施加加工电压以加工表面。
-
10.发明申请Charged particle beam measurement equipment, size correction and standard sample for correction 有权带电粒子束测量设备，尺寸校正和标准样品进行校正公开(公告)号：US20080203285A1
公开(公告)日：2008-08-28
申请号：US12010852
申请日：2008-01-30
IPC分类号： G01D18/00
CPC分类号： H01J37/28 , B82Y15/00 , H01J2237/2826
摘要： Correction of widths obtained by measurement of a sample with the use of a scanning electron microscope is executed with greater precision. Use is made of a standard sample 40 for correction comprising a plurality of correction mark members 42a, 42b, . . . , the respective correction mark members 42a, 42b, being lined up at specified intervals kept therebetween in a specified direction, and respective widths thereof, in the specified direction, differing from each other so as to be of respective sizes as pre-set. Measurement of the respective widths of the correction mark members 42a, 42b, . . . is made to obtain respective measurement widths while authorized widths of the respective widths of the correction mark members 42a, 42b, . . . are kept stored in an image processing unit of the scanning electron microscope to thereby find differences between the respective measurement widths, and authorized widths corresponding thereto, and the differences are stored as respective correction functions, which are used in correcting the measurement width of the sample.
摘要翻译： 以更高的精度执行通过使用扫描电子显微镜测量样品获得的宽度的校正。 使用由用于校正的标准样品40组成，包括多个校正标记构件42,4a，42b。 。 。 ，各个校正标记部件42,4a，42b以规定的间隔排列成规定的方向，并且在规定的方向上保持其各自的宽度彼此不同，从而具有预先设定的各自的尺寸 。 校正标记部件42,4a，42b，...的各自宽度的测量。 。 。 被制成以获得相应的测量宽度，同时校正标记部件42,4a，42b的相应宽度的授权宽度。 。 。 保存在扫描电子显微镜的图像处理单元中，从而发现各测量宽度与其对应的授权宽度之间的差异，并且将这些差值存储为用于校正样品的测量宽度的各种校正函数 。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.023 秒)
