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71. 发明授权

US07403279B2 Information recording medium examining apparatus and method 有权
标题翻译：信息记录介质检查装置和方法
公开(公告)号：US07403279B2
公开(公告)日：2008-07-22
申请号：US11248612
申请日：2005-10-13
申请人： Keiichi Tohyama , Nobuharu Noji , Shoji Yoshikawa
发明人： Keiichi Tohyama , Nobuharu Noji , Shoji Yoshikawa
IPC分类号： G01N21/00
CPC分类号： G11B7/268 , H01J2237/2441 , H01J2237/2446
摘要： In an examining apparatus, an electron gun irradiates an intended position of an information recording medium with an electron beam. A stage holds the information recording medium such that the information recording medium can be moved along a rotation direction and a radial direction. A detector detects electrons which have acquired information of a surface of the information recording medium by irradiating the information recording medium with the electron beam. An image producing unit acquires an image of the surface of the information recording medium based on the electrons detected by the detector. The examining apparatus can examine as to whether or not a defect of an information recording medium such as a CD and a DVD is present, but also can examine a shape of the defect thereof. The examining apparatus can also examine an information recording medium having a large storage capacity.
摘要翻译：在检查装置中，电子枪用电子束照射信息记录介质的预定位置。信息记录介质可以沿着旋转方向和径向移动，从而保持信息记录介质。检测器通过用电子束照射信息记录介质来检测已经获取信息记录介质的表面的信息的电子。图像产生单元基于由检测器检测到的电子来获取信息记录介质的表面的图像。检查装置可以检查诸如CD和DVD之类的信息记录介质的缺陷是否存在，还可以检查其缺陷的形状。检查装置还可以检查具有大存储容量的信息记录介质。

72. 发明授权

US4577320A Light power controlling apparatus 失效
标题翻译：光功率控制装置
公开(公告)号：US4577320A
公开(公告)日：1986-03-18
申请号：US575042
申请日：1984-01-30
申请人： Shoji Yoshikawa , Masaharu Sakamoto
发明人： Shoji Yoshikawa , Masaharu Sakamoto
IPC分类号： H01L33/00 , G11B7/1263 , G11B7/1267 , H01S5/06 , H01S5/0683 , H01S3/13
CPC分类号： H01S5/06832 , G11B7/125
摘要： A light power controlling apparatus contains a semiconductor laser and a photosensor for receiving part of light emitted from the semiconductor laser to produce a corresponding electrical signal. The semiconductor laser is connected to first and second current circuits. The first current circuit averages a voltage signal based on the electrical signal of the photosensor by a first low-pass filter, thereby to have a detected voltage. The detected voltage is compared with a desired voltage by an error amplifier. The error amplifier produces a signal representing a difference between the detected voltage and the desired voltage. The difference signal is integrated by an integrator. According to the integrated signal, the first current circuit supplies a forward current to the semiconductor laser. The second current circuit is set at a peak power value in a modulating mode according to a voltage signal of a peak power setting member. The second current circuit supplies to the semiconductor laser a forward current according to a modulating signal, with superposing on the forward current of the first current circuit. The modulating signal is averaged by a second low pass filter. A voltage representing the product of the averaged value and the peak power value is added to the desired value. The sum voltage is then supplied to the error amplifier where it is compared with the detected voltage.
摘要翻译：光功率控制装置包含半导体激光器和用于接收从半导体激光器发射的一部分光以产生相应的电信号的光电传感器。半导体激光器连接到第一和第二电流电路。第一电流电路根据光传感器的电信号通过第一低通滤波器平均电压信号，从而具有检测电压。通过误差放大器将检测到的电压与期望的电压进行比较。误差放大器产生表示检测到的电压和期望电压之间的差的信号。差分信号由积分器积分。根据积分信号，第一电流电路向半导体激光器提供正向电流。根据峰值功率设定部件的电压信号，将第二电流电路设定在调制模式的峰值功率值。第二电流电路根据调制信号向半导体激光器提供正向电流，并叠加在第一电流电路的正向电流上。调制信号由第二低通滤波器平均。表示平均值和峰值功率值的乘积的电压被加到期望值。然后将和电压提供给误差放大器，在其中与检测到的电压进行比较。

73. 发明授权

US4505585A System for detecting defects on an optical surface 失效
标题翻译：用于检测光学表面上的缺陷的系统
公开(公告)号：US4505585A
公开(公告)日：1985-03-19
申请号：US362680
申请日：1982-03-29
申请人： Shoji Yoshikawa , Ken Ohshima , Hiroshi Kodama , Kunio Yamamiya , Masaharu Sakamoto , Kiichi Kato
发明人： Shoji Yoshikawa , Ken Ohshima , Hiroshi Kodama , Kunio Yamamiya , Masaharu Sakamoto , Kiichi Kato
IPC分类号： G01N21/84 , G01N21/88 , G01N21/95 , G06T7/00 , G11B7/0037 , G01B11/30 , G06F15/20
CPC分类号： G01N21/9506 , G11B7/00375 , G01N2021/8864 , G01N21/9501
摘要： In a system for detecting defects on an optical surface, a disk to be inspected is mounted on a turntable, and is attracted on the surface of the turntable. On the disk is provided an optical head having an objective lens located at its focal point on the surface of the disk. A laser beam emitted from a laser unit is projected through the optical head onto the disk, is reflected on the disk, and is then directed through the optical head to a photo detector. The optical head is moved in the radial direction of the disk as the turntable is rotated, and the disk is helically scanned by the laser beam. Only a defect signal is extracted from an electrical signal generated from the photo detector in a defect signal generator. The defect signal is compared in a data processing unit, and is converted to defect information of different size. When it is judged that a prescribed region on the surface of the disk is scanned by a position signal from a position sensor for detecting the position of the optical head, the data processing unit generates an address, and the defect information is stored in each size in specific assigned locations of the RAM. The defect information thus stored is displayed on a CRT or is printed out by a printer.
摘要翻译：在用于检测光学表面上的缺陷的系统中，待检查的盘安装在转盘上，并且被吸引在转台的表面上。在光盘上设置有一个光学头，该光学头具有位于其表面上的焦点处的物镜。从激光单元发射的激光束通过光头投影到盘上，在盘上被反射，然后被引导通过光头到光检测器。当转盘旋转时，光头在盘的径向上移动，并且盘被激光束螺旋扫描。在缺陷信号发生器中仅从光电检测器产生的电信号中提取缺陷信号。在数据处理单元中比较缺陷信号，并将其转换为不同大小的缺陷信息。当通过来自用于检测光头的位置的位置传感器的位置信号来判断盘的表面上的规定区域被扫描时，数据处理单元生成地址，并且以每个尺寸存储缺陷信息在RAM的特定分配位置。由此存储的缺陷信息显示在CRT上，或由打印机打印出来。

74. 发明授权

US4499514A Disc drive apparatus 失效
标题翻译：盘驱动装置
公开(公告)号：US4499514A
公开(公告)日：1985-02-12
申请号：US362614
申请日：1982-03-29
申请人： Kunio Yamamiya , Hiroshi Kodama , Ken Ohshima , Shoji Yoshikawa , Kiichi Kato , Masaharu Sakamoto
发明人： Kunio Yamamiya , Hiroshi Kodama , Ken Ohshima , Shoji Yoshikawa , Kiichi Kato , Masaharu Sakamoto
IPC分类号： G11B17/028 , G11B19/20 , G11B23/00 , G11B25/04 , G11B5/012
CPC分类号： G11B17/0282 , G11B19/2009 , G11B23/00 , G11B25/043
摘要： A disc drive apparatus for driving a disc selected from discs of various diameters with and without a central hole comprises: a turntable with a hole at the center of rotation thereof; a turntable support for rotatably supporting the turntable; a motor for driving the turntable; a centering member to be detachably inserted in the hole of the turntable and for mounting a disc with a central hole; a plurality of elastic disc support members which are coaxial with the center of rotation of the turntable, which extend from the surface of the turntable, and which form a plurality of annular shapes; centering index marks, disposed on the turntable, for centering a disc without a central hole; a vacuum pump; and suction channels, one end of which is open to the surface of the turntable and the other end of which is connected to the vacuum pump, for fixing on some of the disc support members the disc selected from discs of various diameters with and without a central hole and placed on some of said disc support members.
摘要翻译：一种盘驱动装置，用于驱动选自具有和不具有中心孔的各种直径的盘的盘，包括：具有在其旋转中心的孔的转台; 用于可旋转地支撑转盘的转盘支撑件; 用于驱动转台的电机; 定心构件可拆卸地插入转盘的孔中并用于安装具有中心孔的盘; 与转盘的旋转中心同轴的多个弹性盘支撑构件，其从转台的表面延伸并且形成多个环形形状; 设置在转盘上的定心折痕标记，用于使没有中心孔的圆盘定心; 真空泵; 以及抽吸通道，其一端通向转台的表面，另一端连接到真空泵，用于将一些盘支撑件固定在盘片上，该碟片选自具有和不具有中心孔并放置在一些所述盘支撑构件上。

75. 发明授权

US06227496B1 Attitude determination system for artificial satellite 失效
标题翻译：人造卫星姿态确定系统
公开(公告)号：US06227496B1
公开(公告)日：2001-05-08
申请号：US09610603
申请日：2000-07-05
申请人： Shoji Yoshikawa , Katsuhiko Yamada , Hiroshi Sakashita , Hiroo Yonechi
发明人： Shoji Yoshikawa , Katsuhiko Yamada , Hiroshi Sakashita , Hiroo Yonechi
IPC分类号： B64G136
CPC分类号： G05D1/0883 , B64G1/24 , B64G1/288 , B64G1/36 , B64G1/361 , G01C21/025
摘要： An attitude determination system for an artificial satellite capable of performing star identification without need for the aid of ground station includes an image processing module (17) for processing star images observed at predetermined time points by a star sensor (16) mounted on the artificial satellite (1) for arithmetically determining direction vectors of the observed stars, a rotation estimating module (18) for estimating a rotational motion of the artificial satellite (1) between an attitude of the artificial satellite at a predetermined time point and an attitude of the artificial satellite at another time point, an elongation estimating module (19) for estimating elongations between the direction vectors of plural stars the images of which are picked up at a same time point by the star sensor and estimating the elongations between the direction vectors of plural stars the images of which are picked up at different time points by the star sensor on the basis of the estimated rotational motion, a star identifying module (20) for establishing correspondences between a plurality of the stars for which relation of the elongation has been determined and stars on a star catalog for identifying the stars, and an attitude angle estimating module (21) for estimating an attitude angle of the artificial satellite on the basis of result of identification of the stars.
摘要翻译：能够在不需要地面站的帮助下进行星型识别的人造卫星的姿势确定系统包括：图像处理模块（17），用于处理在预定时间点由安装在人造卫星上的星形传感器（16）观察到的星形图像（1），用于对所述观测星的方向矢量进行算术确定;旋转估计模块，用于估计所述人造卫星在预定时间点的姿态与人造卫星的姿态之间的旋转运动; 卫星在另一个时间点，延伸率估计模块（19），用于估计多个恒星的方向向量之间的延伸，其中图像由星形传感器在同一时间点被拾取并且估计多个恒星的方向向量之间的伸长其基于估计的星形传感器在不同时间点拾取图像旋转运动的星形识别模块（20），用于在已经确定了伸长关系的多个星星之间建立对应关系，并且用于识别恒星的星形目录上的恒星;以及姿态角估计模块（21），用于估计人造卫星的姿态角基于星星识别的结果。

76. 发明授权

US5657301A Automatic changer system capable of rewriting a control program for controlling the system 失效
标题翻译：自动更换系统能够重写用于控制系统的控制程序
公开(公告)号：US5657301A
公开(公告)日：1997-08-12
申请号：US446818
申请日：1995-08-25
申请人： Shoji Yoshikawa , Shinya Matsumoto
发明人： Shoji Yoshikawa , Shinya Matsumoto
IPC分类号： G06F3/06 , G06F9/06 , G06F11/00 , G11B17/22
CPC分类号： G11B17/22
摘要： This automatic changer system easily performs the operation of rewriting a program and acquiring the data of the system. The system includes program rewriting means (12) responsive to the application of a program rewrite command for selecting a storage medium (10) storing a new control program, reading in the new control program, erasing the previously stored control program stored in storage means (11) and storing the new control program in the storage means (11).
摘要翻译： PCT No.PCT / JP94 / 01672 Sec。 371日期1995年8月25日 102（e）日期1995年8月25日PCT 1994年10月6日提交本自动更换系统轻松执行重写程序和获取系统数据的操作。该系统包括响应于应用程序重写命令的程序重写装置（12），用于选择存储新的控制程序的存储介质（10），读取新的控制程序，擦除存储在存储装置中的先前存储的控制程序 11）并将新的控制程序存储在存储装置（11）中。

77. 发明申请

US20090086209A1 Method for marking defect and device therefor 有权
标题翻译：标记缺陷的方法及其设备
公开(公告)号：US20090086209A1
公开(公告)日：2009-04-02
申请号：US12228478
申请日：2008-08-13
申请人： Mitsuaki Uesugi , Shoji Yoshikawa , Masaichi Inomata , Tsutomu Kawamura , Takahiko Oshige , Hiroyuki Sugiura , Akira Kazama , Tsuneo Suyama , Yasuo Kushida , Shuichi Harada , Hajime Tanaka , Osamu Uehara , Shuji Kaneto , Masahiro Iwabuchi , Kozo Harada , Shinichi Tomonaga , Shigemi Fukuda
发明人： Mitsuaki Uesugi , Shoji Yoshikawa , Masaichi Inomata , Tsutomu Kawamura , Takahiko Oshige , Hiroyuki Sugiura , Akira Kazama , Tsuneo Suyama , Yasuo Kushida , Shuichi Harada , Hajime Tanaka , Osamu Uehara , Shuji Kaneto , Masahiro Iwabuchi , Kozo Harada , Shinichi Tomonaga , Shigemi Fukuda
IPC分类号： G01N21/89 , B05C1/06
CPC分类号： B21C51/005 , G01N21/89
摘要： A defect marking device includes a flaw inspection device which has a plurality of light-receiving parts that identify reflected lights coming from an inspection plane of a metal strip under two or more of optical conditions different from each other; a signal processing section that judges the presence/absence of surface flaw on the inspection plane based on a combination of reflected light components identified under these optical conditions different from each other; and a marking device which applies marking that indicates information relating to the flaw on the surface of the metal strip.
摘要翻译：缺陷标记装置包括：瑕疵检查装置，其具有多个受光部，该多个受光部在两个以上的光学条件彼此不同的情况下识别来自金属条的检查平面的反射光; 信号处理部，其基于在这些彼此不同的光学条件下识别的反射光分量的组合来判断检查平面上的表面缺陷的存在/不存在; 以及标记装置，其在金属带的表面上施加指示与缺陷有关的信息的标记。

78. 发明授权

US07305149B2 Image pickup information recognition system 失效
标题翻译：摄像信息识别系统
公开(公告)号：US07305149B2
公开(公告)日：2007-12-04
申请号：US10230251
申请日：2002-08-29
申请人： Shoji Yoshikawa , Katsuhiko Yamada , Masafumi Yamaguchi , Akito Takeya
发明人： Shoji Yoshikawa , Katsuhiko Yamada , Masafumi Yamaguchi , Akito Takeya
IPC分类号： G06K9/54 , G06K9/60
CPC分类号： G06T19/006 , G01C21/26 , G06T7/74 , G06T17/05 , G06T2200/16
摘要： An image collating center has a communication unit, a processing unit, and a memory unit. The processing unit accesses a geographic information database through a communication network, extracts appropriate geographic information from the geographic information database based on a picked-up image and additional information transmitted from an image provider, and generates a simulated image assumed to be viewed from the image provider. Further, the image collating center estimates the image pickup position and the image pickup attitude of the image provider through collating the simulated image with the picked-up image and returns the estimated image pickup position and image pickup attitude of the image provider to the image provider through the communication network.
摘要翻译：图像对照中心具有通信单元，处理单元和存储单元。处理单元通过通信网络访问地理信息数据库，基于拍摄的图像和从图像提供者发送的附加信息从地理信息数据库中提取适当的地理信息，并且生成假设从图像中观看的模拟图像提供者此外，图像对照中心通过将模拟图像与拾取图像进行核对来估计图像提供者的图像拾取位置和图像拾取姿势，并将图像提供者的估计图像拾取位置和图像拾取姿态返回给图像提供者通过通信网络。

79. 发明授权

US06480787B2 GPS receiving system 失效
标题翻译： GPS接收系统
公开(公告)号：US06480787B2
公开(公告)日：2002-11-12
申请号：US09903744
申请日：2001-07-13
申请人： Shoji Yoshikawa , Katsuhiko Yamada , Jun Tsukui
发明人： Shoji Yoshikawa , Katsuhiko Yamada , Jun Tsukui
IPC分类号： G01C2100
CPC分类号： G01S19/51 , B64G1/36 , G01S5/0072 , G01S19/23 , G01S19/52
摘要： A global positioning system (GPS) receiving system which achieves an equivalent synchronization in time measurement of GPS signals utilizing software without requiring highly accurate synchronization for receiver clocks with time information embedded in the GPS signals. The GPS receiving system performs a relative navigation process after correcting a pseudorange with a time tag error which is attributable to inaccuracy of receiver clocks of first and second moving objects. A relative navigation process correcting an absolute error of a time tag with a clock bias is also described. A differential computation unit calculates a difference between the first pseudorange and the second pseudorange commonized by the time tag commonizing unit. Correction in a time tag error correction unit is performed for the selected GPS data with a common GPS satellite identification number.
摘要翻译：一种全球定位系统（GPS）接收系统，其利用软件实现GPS信号的时间测量中的等效同步，而不需要在GPS信号中嵌入时间信息的接收机时钟的高精度同步。 GPS接收系统在利用可归因于第一和第二移动物体的接收器时钟的不准确的时间标签误差校正伪距之后执行相对导航处理。还描述了用时钟偏差校正时间标签的绝对误差的相对导航处理。差分计算单元计算第一伪距和由时间标签公用化单元公共的第二伪距之差。对于具有公共GPS卫星识别号码的所选择的GPS数据执行时间标签误差校正单元的校正。

80. 发明授权

US5109367A Optical information recording and reproducing apparatus performing focus and/or track control by normalized error signals 失效
标题翻译：通过归一化误差信号进行聚焦和/或跟踪控制的光信息记录和再现装置
公开(公告)号：US5109367A
公开(公告)日：1992-04-28
申请号：US585566
申请日：1990-09-20
申请人： Shoji Yoshikawa
发明人： Shoji Yoshikawa
IPC分类号： G02B7/28 , G11B7/09
CPC分类号： G11B7/094
摘要： For an output signal of an error signal generating circuit generating a focus error signal and/or track error signal, it is materialized that a highly precise servo system can sufficiently deal with the case in which the change of the light intensity by switching recording and reproducing or the like and the dispersion of offset and sensitivity by an optical system exist, by providing with a compensating operational circuit generating a normalized focus and/or track error signal being independent of the reflected light intensity from a recording medium and/or the light intensity distribution and also the difference of sensitivity, and by providing with a bias applying circuit applying a bias component for deleting offset and so forth in the signal of this compensating operational circuit.
摘要翻译：对于产生聚焦误差信号和/或轨道误差信号的误差信号发生电路的输出信号，实现高精度伺服系统能够充分地处理通过切换记录和再现的光强度变化的情况存在通过光学系统的偏移和灵敏度的偏差，通过提供补偿操作电路，产生与来自记录介质的反射光强度和/或光强度无关的标准化焦点和/或轨道误差信号分布以及灵敏度的差异，并且通过提供施加偏置分量的偏置施加电路来消除该补偿运算电路的信号中的偏移等。

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