公开(公告)号：US06980489B2

公开(公告)日：2005-12-27

申请号：US10421019

申请日：2003-04-21

申请人： Kousei Sano ,  Shin-ichi Kadowaki

发明人： Kousei Sano ,  Shin-ichi Kadowaki

IPC分类号： G11B5/584 ,  G11B5/78 ,  G11B5/82 ,  G11B7/09 ,  G11B11/105 ,  G11B15/60 ,  G11B11/00 ,  G11B7/24

CPC分类号： G11B15/602 ,  G11B5/584 ,  G11B5/78 ,  G11B5/82 ,  G11B7/0938 ,  G11B11/10578

摘要： A magnetic tape has a guide track for optically obtaining a tracking signal and an independent information track for storing information. The magnetic tape is partitioned into different kinds of zones. The guide tracks are provided with grooves or pits serving as tracking marks, and the tracking marks are selectively located in the zones depending on the kind of zone. Thus, the track spacing of the guide tracks in each zone can be increased, so that a tracking control can be performed for a high density recording medium without reducing the spot size of the light.

摘要翻译： 磁带具有用于光学获得跟踪信号的引导轨道和用于存储信息的独立信息轨迹。 磁带被分割成不同种类的区域。 引导轨道设置有用作跟踪标记的凹槽或凹坑，并且跟踪标记根据区域的种类选择性地位于区域中。 因此，可以增加每个区域中的导轨的轨道间隔，使得可以对高密度记录介质执行跟踪控制，而不会减小光的斑点尺寸。

公开(公告)号：US06810002B1

公开(公告)日：2004-10-26

申请号：US09481268

申请日：2000-01-11

申请人： Kousei Sano ,  Shin-ichi Kadowaki

发明人： Kousei Sano ,  Shin-ichi Kadowaki

IPC分类号： G11B724

CPC分类号： G11B15/602 ,  G11B5/584 ,  G11B5/78 ,  G11B5/82 ,  G11B7/0938 ,  G11B11/10578

摘要： A magnetic tape has a guide track for optically obtaining a tracking signal and an independent information track for storing information. The magnetic tape is partitioned into different kinds of zones. The guide tracks are provided with grooves or pits serving as tracking marks, and the tracking marks are selectively located in the zones depending on the kind of zone. Thus, the track spacing of the guide tracks in each zone can be increased, so that a tracking control can be performed for a high density recording medium without reducing the spot size of the light.

摘要翻译： 磁带具有用于光学获得跟踪信号的引导轨道和用于存储信息的独立信息轨迹。 磁带被分割成不同种类的区域。 引导轨道设置有用作跟踪标记的凹槽或凹坑，并且跟踪标记根据区域的种类选择性地位于区域中。 因此，可以增加每个区域中的导轨的轨道间隔，使得可以对高密度记录介质执行跟踪控制，而不会减小光的斑点尺寸。

公开(公告)号：US06327110B1

公开(公告)日：2001-12-04

申请号：US09045149

申请日：1998-03-19

申请人： Kousei Sano ,  Shin-ichi Kadowaki

发明人： Kousei Sano ,  Shin-ichi Kadowaki

IPC分类号： G11B700

CPC分类号： G11B5/59677 ,  G11B7/0901

摘要： For example, because an optical position detector for positioning a head for a high-density floppy disk is constituted so that openings 111 and 112 are used in which the thickness of a returning optical path bound for photodetectors 108R and 108L from a disk 107 is larger than the thickness of an advancing optical path bound for the disk 107 from a light source 101, a light beam is not easily interrupted in the middle of an optical path even if a light beam falls due to a tilt of the disk and therefore, it is possible to stably obtain position detection signals. Moreover, by reducing the luminous energy to be returned to a light source, it is possible to obtain a signal having less noises even if the distance between object images decreases and downsize an apparatus. In the case of a conventional optical position detector for positioning a head for a high-density floppy disk, a light beam is tilted due to a tilt of a disk and interrupted in its returning path because the numerical aperture of an optical system is small and the quality of a signal used for position detection is easily deteriorated. Moreover, when decreasing the distance between object images in order to downsize an apparatus, noises of a light source increase and the quality of a signal is deteriorated.

摘要翻译： 例如，由于用于定位用于高密度软盘的磁头的光学位置检测器被构成为使用开口111和112，其中光盘检测器108R和108L从磁盘107绑定的返回光路的厚度较大 比光源101对于盘107的前进光路的厚度，即使光束由于盘的倾斜而落在光路的中间也不容易中断，因此， 可以稳定地获得位置检测信号。 此外，通过减少要返回到光源的光能，即使物体图像之间的距离减小并且尺寸减小，也可以获得具有较小噪声的信号。在用于定位物体的常规光学位置检测器的情况下 由于光学系统的数值孔径小，用于位置检测的信号的质量很容易恶化，所以由于光盘的倾斜而导致光束倾斜而导致光束的返回路径中断，因此， 。 此外，当减小对象图像之间的距离以便缩小装置尺寸时，光源的噪声增加并且信号的质量劣化。

公开(公告)号：US06172959B2

公开(公告)日：2001-01-09

申请号：US09187862

申请日：1998-11-06

申请人： Kousei Sano ,  Shin-ichi Tanaka ,  Shin-ichi Kadowaki

发明人： Kousei Sano ,  Shin-ichi Tanaka ,  Shin-ichi Kadowaki

IPC分类号： G11B700

CPC分类号： G11B11/10515 ,  G11B7/005

摘要： An optical information processing apparatus includes: an optical head for radiating a light beam onto an information storage medium and generating a reproduction signal from the light beam reflected an/or diffracted from the information storage medium, the information storage medium carrying optically readable information recorded thereon; a transportation member for causing a relative movement of the optical head with respect to the information storage medium; and a signal processing circuit for receiving the reproduction signal generated by the optical head and processing the reproduction signal. The reproduction signal obtained from the information storage medium irradiated with the light beam includes first information from a mark near a boundary between a region which is heated by the light beam to no less than a predetermined temperature and a first region which is at a temperature below the predetermined temperature, and second information from a mark near a boundary between the region which is heated to no less than the predetermined temperature and a second region which is at a temperature below the predetermined temperature. The signal processing circuit separates the first information from the second information, or vice versa, thereby obtaining from the reproduction signal the information recorded on the information storage medium.

摘要翻译： 一种光学信息处理设备包括：光头，用于将光束辐射到信息存储介质上，并且从信息存储介质反射或衍射的光束产生再现信号，所述信息存储介质承载在其上记录的光学可读信息 ; 用于使所述光学头相对于所述信息存储介质相对移动的传送部件; 以及信号处理电路，用于接收由光头产生的再现信号并处理再现信号。 从照射光束的信息存储介质获得的再现信号包括从由光束加热到不低于预定温度的区域之间的边界附近的标记和处于低于预定温度的第一区域的第一信息 预定温度和来自加热到不低于预定温度的区域之间的边界附近的标记的第二信息和处于低于预定温度的温度的第二区域。 信号处理电路将第一信息与第二信息分开，反之亦然，从而从再现信号获得记录在信息存储介质上的信息。

公开(公告)号：US6091690A

公开(公告)日：2000-07-18

申请号：US18255

申请日：1998-02-04

申请人： Kousei Sano ,  Shin-ichi Kadowaki

发明人： Kousei Sano ,  Shin-ichi Kadowaki

IPC分类号： G11B7/09 ,  G11B7/135

CPC分类号： G11B7/0908 ,  G11B7/0901 ,  G11B7/1353 ,  G11B7/1359 ,  G11B7/1381

摘要： An optical head apparatus comprises: a light source for emitting light; a front-end converging optical system for converging the light emitted from the light source onto a multi-layer information storage medium; a back-end converging optical system for reconverging the light reflected from a layer on the multi-layer information storage medium; wavefront converting means for accepting the reconverged light, and for forming an wavefront to enable detection of a focus error signal and/or a tracking error signal; and a photodetector for receiving the light from the wavefront converting means, and for outputting a signal proportional to the amount of the received light.

摘要翻译： 一种光头装置，包括：用于发光的光源; 前端会聚光学系统，用于将从光源发射的光聚焦到多层信息存储介质上; 后端会聚光学系统，用于使从多层信息存储介质上的层反射的光重新收敛; 波前转换装置，用于接收再聚光，并且用于形成波前以使得能够检测聚焦误差信号和/或跟踪误差信号; 以及光电检测器，用于接收来自波前转换装置的光，并用于输出与所接收的光的量成比例的信号。

公开(公告)号：US6009054A

公开(公告)日：1999-12-28

申请号：US206589

申请日：1998-12-07

申请人： Shin-ichi Kadowaki ,  Shinichi Tanaka ,  Seiji Nishiwaki ,  Kousei Sano ,  Seiji Nishino

发明人： Shin-ichi Kadowaki ,  Shinichi Tanaka ,  Seiji Nishiwaki ,  Kousei Sano ,  Seiji Nishino

IPC分类号： G11B5/016 ,  G11B5/55 ,  G11B7/09 ,  G11B21/10 ,  G11B7/00

CPC分类号： G11B21/10 ,  G11B5/5556 ,  G11B5/016 ,  G11B5/5565 ,  G11B7/0903 ,  G11B7/0941

摘要： In a magnetic recording medium to detect tracking error signals optically where an optical head and a magnetic head scan different tracks, two signals having phases different by .pi./2 are generated and added or subtracted. By changing the amplitude of the two signals with a changeable gain amplifying means, a phase of a tracking error signal is changed so that the servo operation is conducted at the middle of the amplitude of the tracking error signal to keep the magnetic head on track.

公开(公告)号：US5881039A

公开(公告)日：1999-03-09

申请号：US965470

申请日：1997-11-06

申请人： Kousei Sano ,  Shin-ichi Kadowaki

发明人： Kousei Sano ,  Shin-ichi Kadowaki

IPC分类号： G11B7/005 ,  G11B7/14 ,  G11B20/10 ,  G11B7/00

CPC分类号： G11B20/10009 ,  G11B7/005 ,  G11B7/14

摘要： A signal processing device for an optical information reproducing apparatus is provided. The reproducing apparatus reproduces information using a light beam from an information recording medium having tracks in which the information is recorded in such a manner that optically readable marks are digitally and selectively formed with a discrete length which is a substantially integral multiple of a basic period T. the device includes: an optical pickup head device outputting a signal mainly containing information recorded at a desired position; an equalizer receiving the signal and emphasizing an amplitude of a high frequency component of the signal relative to a low frequency component of the signal in accordance with a coefficient capable of being arbitrarily set; a clock signal generator generating a clock signal representing a timing synchronized with an edge of digital information recorded as marks or spaces on the information recording medium; an index processor receiving an output signal from the equalizer to calculate an index; and a signal processing circuit outputting a control signal for controlling the coefficient in the equalizer based on the index.

摘要翻译： 提供了一种用于光信息再现装置的信号处理装置。 再现装置使用来自信息记录介质的光束再现信息，该信息记录介质具有其中记录有信息的光道，使得光学可读标记被数字地选择性地形成，其具有基本周期T的基本上整数倍的离散长度 该装置包括：光学拾取头装置，其输出主要包含记录在期望位置的信息的信号; 接收信号并根据能够被任意设定的系数相对于信号的低频分量强调信号的高频分量的振幅的均衡器; 时钟信号发生器，产生表示与在信息记录介质上记录为标记或空格的数字信息的边缘同步的定时的时钟信号; 接收来自所述均衡器的输出信号以计算索引的索引处理器; 信号处理电路根据该索引输出用于控制均衡器中的系数的控制信号。

公开(公告)号：US20110085430A1

公开(公告)日：2011-04-14

申请号：US12951220

申请日：2010-11-22

申请人： Shin-ichi Kadowaki ,  Mamoru Shoji ,  Atsushi Nakamura ,  Takashi Ishida

发明人： Shin-ichi Kadowaki ,  Mamoru Shoji ,  Atsushi Nakamura ,  Takashi Ishida

IPC分类号： G11B27/36 ,  G11B7/00

CPC分类号： G01R31/31709 ,  G01N21/9506 ,  G01R31/312 ,  G11B7/00375 ,  G11B7/00456 ,  G11B7/00458 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/10296 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B20/225 ,  G11B2020/1239 ,  G11B2020/1274 ,  G11B2020/1298 ,  G11B2220/2537

摘要： An optical disc drive having an optical pickup head emitting a light beam to an optical storage medium, detecting the light beam reflected from the optical storage medium, and outputting a signal based on the received reflected light, having a jitter measuring unit measuring jitter in signals output from the optical pickup head and having an evaluation unit determining from the measured jitter if the optical storage medium is good or defective. The jitter measuring unit measures jitter in a train of 3T or longer marks or spaces from an optical storage medium to which digital information is recorded as a train of marks or spaces of length kT based on a period T and an integer k of two or more.

摘要翻译： 一种光盘驱动器，具有将光束发射到光存储介质的光拾取头，检测从光存储介质反射的光束，并输出基于接收到的反射光的信号，具有测量信号中的抖动的抖动测量单元 从光拾取头输出，并且具有评估单元，如果光学存储介质良好或有缺陷，则从所测量的抖动确定。 抖动测量单元测量基于周期T和两个或更多个整数k的记录数字信息作为长度kT的标记或空格的列的光存储介质的3T或更长的标记或间隔的列的抖动 。

公开(公告)号：US20100165307A1

公开(公告)日：2010-07-01

申请号：US11997117

申请日：2006-06-01

申请人： Tetsuro Mizushima ,  Ken'ichi Kasazumi ,  Tatsuo Itoh ,  Tomoya Sugita ,  Kazuhisa Yamamoto ,  Shin-ichi Kadowaki

发明人： Tetsuro Mizushima ,  Ken'ichi Kasazumi ,  Tatsuo Itoh ,  Tomoya Sugita ,  Kazuhisa Yamamoto ,  Shin-ichi Kadowaki

IPC分类号： G03B21/28 ,  G02B27/14 ,  G02B27/18

CPC分类号： H04N9/3161 ,  G02B26/105 ,  G02B27/0961 ,  G03B21/005 ,  H04N9/3129

摘要： A laser image display comprising a laser light source emitting laser light, a beam deflector element for receiving laser light and deflecting its advancing direction, a beam deflecting element control section for controlling the degree of deflection performed by the beam deflector element, an optical integrator for receiving and guiding the deflected laser light to output from its outputting end face, a pseudo surface light source element for scattering the deflected laser light, and a modulation element for receiving and modulating the laser light scattered by the false surface light source element.

摘要翻译： 一种激光图像显示器，包括发射激光的激光光源，用于接收激光并偏转其前进方向的光束偏转元件，用于控制由光束偏转元件执行的偏转程度的光束偏转元件控制部分，用于 接收和引导偏转的激光从其输出端面输出，用于散射偏转的激光的伪平面光源元件，以及用于接收和调制由假面光源元件散射的激光的调制元件。

公开(公告)号：US20090303417A1

公开(公告)日：2009-12-10

申请号：US12093487

申请日：2006-11-15

申请人： Tetsuro Mizushima ,  Ken'ichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Shin-ichi Kadowaki ,  Tatsuo Itoh

发明人： Tetsuro Mizushima ,  Ken'ichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Shin-ichi Kadowaki ,  Tatsuo Itoh

IPC分类号： F21V8/00 ,  G02F1/13357

CPC分类号： G02B5/02 ,  G02B3/0056 ,  G02B6/0028 ,  G02B6/0066 ,  G02B19/0028 ,  G02B19/0057 ,  G02B26/105 ,  G02B27/1053 ,  G02B27/1086 ,  G02B27/144 ,  G02B27/145 ,  G02B27/48 ,  G02F1/133621

摘要： The present invention provides a surface illuminator having a uniform luminance over a large area by using a laser light source, having a wide color reproduction range, and capable of suppressing a speckle noise, as well as a liquid crystal display using the same. The surface illuminator of the present invention includes the laser light source that emits a laser beam; a beam scan section that deflects and scans the laser beam; and a first plate-shaped light guide that makes the laser beam deflected and scanned by the beam scan section to be incident from an end face portion and making the incident laser beam to emit from a first major surface. Further, the liquid crystal display of the present invention includes a liquid crystal display panel and the surface illuminator, wherein the surface illuminator is used as a backlight illuminator that lights the liquid crystal display panel from backside in this liquid crystal display.

摘要翻译： 本发明通过使用具有宽的色彩再现范围并且能够抑制散斑噪声的激光源以及使用其的液晶显示器，提供了在大面积上具有均匀亮度的表面照明器。 本发明的表面照明器包括发射激光束的激光光源; 光束扫描部分，其偏转和扫描激光束; 以及第一板状光导，其使由激光束扫描部偏转和扫描的激光束从端面部入射并使入射的激光束从第一主表面发射。 此外，本发明的液晶显示器包括液晶显示面板和表面照明器，其中表面照明器用作从该液晶显示器的背面照亮液晶显示面板的背光照明器。