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    Optical reproducing device and optical memory medium
    1.
    发明授权
    Optical reproducing device and optical memory medium 失效
    光学再现装置和光学存储介质

    公开(公告)号：US06288992B1

    公开(公告)日：2001-09-11

    申请号：US09103869

    申请日：1998-06-24

    申请人： Tetsuya Okumura ,  Hiroshi Fuji

    发明人： Tetsuya Okumura ,  Hiroshi Fuji

    IPC分类号： G11B700

    CPC分类号： G11B7/126 ,  G11B7/005 ,  G11B7/00745 ,  G11B7/013 ,  G11B11/10515 ,  G11B11/10595 ,  G11B27/3027

    摘要： An optical reproducing device according to the present invention detects mean amplitude values of short marks and long marks, which are recorded marks for reproducing power control, by means of a short mark level detecting circuit and a long mark level detecting circuit. Then a differential amplifier compares a ratio between these two mean amplitude values with a standard value, and outputs the result of this comparison. Thereafter, a reproducing power control circuit controls reproducing power of a semiconductor laser such that the absolute value of this comparison result is reduced. Since mean values of the amplitude values of the short marks and long marks are detected, the detection results are very accurate, and the precision of control of reproducing power can be greatly improved.

    摘要翻译： 根据本发明的光学再现装置通过短标记电平检测电路和长标记电平检测电路检测作为用于再现功率控制的记录标记的短标记和长标记的平均幅度值。 然后，差分放大器将这两个平均幅度值之间的比率与标准值进行比较，并输出该比较的结果。 此后，再现功率控制电路控制半导体激光器的再现功率，使得该比较结果的绝对值降低。 由于检测到短标记和长标记的振幅值的平均值，因此检测结果非常准确，可以大大提高再现功率的控制精度。

    Optical recording method and device for optimally controlling the width of the recording marks
    2.
    发明授权
    Optical recording method and device for optimally controlling the width of the recording marks 失效
    用于最佳地控制记录标记宽度的光记录方法和装置

    公开(公告)号：US6125085A

    公开(公告)日：2000-09-26

    申请号：US108472

    申请日：1998-07-01

    申请人： Hiroshi Fuji ,  Tetsuya Okumura ,  Shigemi Maeda

    发明人： Hiroshi Fuji ,  Tetsuya Okumura ,  Shigemi Maeda

    IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B11/00

    CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B7/007 ,  G11B7/24085

    摘要： A method and apparatus are provided for optimally controlling the width of recording marks formed by a light beam on an optical recording medium in an optical recording apparatus. The method is accomplished by selecting and storing in a storage device a predetermined optimal read signal value, and then setting a plurality of selectable predetermined recording conditions in the optical recording apparatus. These conditions differ from one another in the quantity of light in the light beam, or in the strength of an external magnetic field. In the optical recording apparatus, a set of first test patterns then are recorded by the light beam on separate first tracks of the optical recording medium under each of the predetermined conditions. Similarly, a second test track is recorded onto the optical recording medium under the same predetermined conditions adjacent to each of the first test tracks. The first test tracks are thereafter read by the optical recording apparatus, and the amplitude of the read signals is stored in the storage device, along with an indication of the predetermined recording signal condition under which it was generated. Finally, using a comparison device, the stored signal quantities are compared to the predetermined optimal read signal value. The optimal one of the predetermined recording conditions to be used by the optical recording apparatus is determined to be the condition associated with the one of the stored signals that most closely approximates the predetermined optimal signal value.

    摘要翻译： 提供了一种方法和装置，用于最佳地控制光记录装置中的光记录介质上由光束形成的记录标记的宽度。 该方法通过在存储装置中选择和存储预定的最佳读取信号值，然后在光学记录装置中设置多个可选择的预定记录条件来实现。 这些条件在光束中的光量或外部磁场的强度彼此不同。 在光学记录装置中，在每个预定条件下，将一组第一测试图案由光束记录在光学记录介质的分开的第一轨道上。 类似地，在与每个第一测试轨道相邻的相同的预定条件下，将第二测试轨迹记录在光学记录介质上。 随后由光学记录装置读取第一测试轨迹，并将读出的信号的幅度与其产生的预定记录信号条件的指示一起存储在存储装置中。 最后，使用比较装置，将所存储的信号量与预定的最佳读取信号值进行比较。 将由光学记录装置使用的预定记录条件中的最佳一个确定为与最接近预定最佳信号值的存储信号之一相关联的条件。

    Optical reproducing device and optical memory medium
    3.
    发明授权
    Optical reproducing device and optical memory medium 失效
    光学再现装置和光学存储介质

    公开(公告)号：US06847592B2

    公开(公告)日：2005-01-25

    申请号：US09909291

    申请日：2001-07-19

    申请人： Tetsuya Okumura ,  Hiroshi Fuji

    发明人： Tetsuya Okumura ,  Hiroshi Fuji

    IPC分类号： G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B27/30 ,  G11B11/00

    CPC分类号： G11B7/126 ,  G11B7/005 ,  G11B7/00745 ,  G11B7/013 ,  G11B11/10515 ,  G11B11/10595 ,  G11B27/3027

    摘要： An optical reproducing device according to the present invention detects mean amplitude values of short marks and long marks, which are recorded marks for reproducing power control, by means of a short mark level detecting circuit and a long mark level detecting circuit. Then a differential amplifier compares a ratio between these two mean amplitude values with a standard value, and outputs the result of this comparison. Thereafter, a reproducing power control circuit controls reproducing power of a semiconductor laser such that the absolute value of this comparison result is reduced. Since mean values of the amplitude values of the short marks and long marks are detected, the detection results are very accurate, and the precision of control of reproducing power can be greatly improved.

    摘要翻译： 根据本发明的光学再现装置通过短标记电平检测电路和长标记电平检测电路检测作为用于再现功率控制的记录标记的短标记和长标记的平均幅度值。 然后，差分放大器将这两个平均幅度值之间的比率与标准值进行比较，并输出该比较的结果。 此后，再现功率控制电路控制半导体激光器的再现功率，使得该比较结果的绝对值降低。 由于检测到短标记和长标记的振幅值的平均值，因此检测结果非常准确，可以大大提高再现功率的控制精度。

    Optical reproducing device and optical memory medium
    4.
    发明授权
    Optical reproducing device and optical memory medium 失效
    光学再现装置和光学存储介质

    公开(公告)号：US06404717B1

    公开(公告)日：2002-06-11

    申请号：US09163516

    申请日：1998-09-30

    申请人： Tetsuya Okumura ,  Hiroshi Fuji ,  Shigemi Maeda

    发明人： Tetsuya Okumura ,  Hiroshi Fuji ,  Shigemi Maeda

    IPC分类号： G11B509

    CPC分类号： G11B7/126 ,  G11B7/005 ,  G11B7/00745 ,  G11B11/10584 ,  G11B11/10595 ,  G11B20/10 ,  G11B27/3027 ,  G11B2220/2525

    摘要： A magneto-optical disk reproducing device includes a clock producing circuit, which, on the basis of a reproducing signal from recorded marks recorded in a magneto-optical disk, produces a timing offset from peak positions of the reproducing signal; an A/D converter, which samples the reproducing signal in accordance with the timing, and outputs a reproducing signal quantity; and a short mark signal quantity averaging circuit and a long mark signal quantity averaging circuit, each of which averages a plurality of reproducing signal quantities. When projecting a light beam onto a magneto-optical disk, the magneto-optical disk reproducing device controls light quantity of the light beam on the basis of a ratio between the respective values outputted by the foregoing averaging circuits. By this means, the A/D converter is able to sample the reproducing signal at more timings than when a reproducing signal is detected at peak positions thereof, and the magneto-optical disk reproducing device can detect the foregoing ratio more precisely. Consequently, the magneto-optical disk can control the light quantity of the light beam more accurately.

    摘要翻译： 磁光盘再现装置包括时钟产生电路，其基于记录在磁光盘中的记录标记的再现信号，产生与再现信号的峰值位置的定时偏移; A / D转换器，其根据定时对再现信号进行采样，并输出再现信号量; 以及短标记信号量平均电路和长标记信号量平均电路，其中每个均衡多个再现信号量。 当将光束投影到磁光盘上时，磁光盘再现装置基于由上述平均电路输出的各个值之间的比率来控制光束的光量。 通过这种方式，A / D转换器能够比在其峰值位置处检测到再现信号时更多的定时对再现信号进行采样，并且磁光盘再现装置可以更精确地检测上述比率。 因此，磁光盘可以更精确地控制光束的光量。

    Superconducting wire and superconducting coil employing it
    6.
    发明申请
    Superconducting wire and superconducting coil employing it 有权
    超导线和超导线圈采用它

    公开(公告)号：US20060077025A1

    公开(公告)日：2006-04-13

    申请号：US10514194

    申请日：2004-07-13

    申请人： Kazuo Funaki ,  Masataka Iwakuma ,  Takanobu Kisu ,  Akira Tomioka ,  Toshio Uede ,  Hiroshi Fuji ,  Teruo Izumi ,  Yuh Shiohara

    发明人： Kazuo Funaki ,  Masataka Iwakuma ,  Takanobu Kisu ,  Akira Tomioka ,  Toshio Uede ,  Hiroshi Fuji ,  Teruo Izumi ,  Yuh Shiohara

    IPC分类号： H01F6/00

    CPC分类号： H01L39/143 ,  H01F6/02 ,  H01F6/06 ,  H01F27/2852 ,  H01F27/2871 ,  H01F27/346 ,  Y10S505/704 ,  Y10S505/705 ,  Y10S505/879 ,  Y10S505/884 ,  Y10S505/887

    摘要： Tape-shaped superconducting wires are made by forming a superconducting film on the substrate. At least the superconducting film is slit, electrically separated into a plurality of superconducting film parts each having a rectangular cross section and arranged in parallel to form parallel conductors. This provides superconducting wires capable of containing AC loss. A superconducting coil is made by winding the superconducting wires described above, wherein the provision of a coil structure containing at least partially a part wherein the perpendicular interlinkage magnetic flux acting among various conductor elements of the parallel conductors by the distribution of the magnetic field generated by the superconducting coils cancel mutually enables a simple structure without transposition to cancel mutually the interlinkage magnetic flux by the perpendicular magnetic field against wires, to contain circulating current within the wires by the perpendicular magnetic field and to make shunt current uniform. This provides a low-loss superconducting coil.

    摘要翻译： 带状超导线通过在基板上形成超导膜而制成。 至少超导膜被切割，电分离成多个超导膜部件，每个超导膜部件具有矩形横截面并且平行布置以形成平行的导体。 这提供了能够包含AC损耗的超导线。 通过缠绕上述超导线来制造超导线圈，其中提供线圈结构，其至少部分地包含部分，其中通过由所述平行导体的各个导体元件中的磁场分布产生的磁场的分布而作用的垂直互连磁通量 超导线圈相互抵消，能够实现简单的结构，而不会发生转移，以相互抵消通过垂直磁场对线的互连磁通，以通过垂直磁场包含线内的循环电流并使分流电流均匀。 这提供了一个低损耗超导线圈。

    Cable connection
    9.
    发明授权
    Cable connection 失效
    电缆连接

    公开(公告)号：US5997339A

    公开(公告)日：1999-12-07

    申请号：US970494

    申请日：1997-11-14

    申请人： Hiroshi Fuji ,  Hajimu Iwai ,  Fabio Righi

    发明人： Hiroshi Fuji ,  Hajimu Iwai ,  Fabio Righi

    IPC分类号： H01R13/58 ,  H01R13/56

    CPC分类号： H01R13/562

    摘要： A method and apparatus for a cable connection system is provided. The connection system includes a cable termination coupled to the end of a cable. The cable termination includes a body and two substantially circular pivots, and a cable input in the body of the cable termination for receiving the cable. The cable termination is designed to fit rotatable into a device having a mating housing. The device includes a groove on both sides of the mating housing, for fitting the cable in either direction, such that the cable termination may be rotated into the mating housing in either direction.

    摘要翻译： 提供了一种用于电缆连接系统的方法和装置。 连接系统包括耦合到电缆端部的电缆终端。 电缆终端包括主体和两个基本上圆形的枢轴，以及用于接收电缆的电缆终端的主体中的电缆输入。 电缆终端设计成可旋转地装配到具有配合壳体的装置中。 该装置包括在配合壳体的两侧的凹槽，用于沿任一方向装配电缆，使得电缆终端可沿任一方向旋转到配合壳体中。

    Multibeam recording/reproducing apparatus in which direction of movement of plurality of light beams is determined based on order in which each of light beams crosses track
    10.
    发明授权
    Multibeam recording/reproducing apparatus in which direction of movement of plurality of light beams is determined based on order in which each of light beams crosses track 失效
    多光束记录/再现装置，其中根据光束横越轨迹的顺序确定多个光束的移动方向

    公开(公告)号：US5638350A

    公开(公告)日：1997-06-10

    申请号：US355622

    申请日：1994-12-14

    申请人： Hiroshi Fuji

    发明人： Hiroshi Fuji

    IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/14 ,  G11B7/00

    CPC分类号： G11B7/08541 ,  G11B7/0903

    摘要： A multibeam recording/reproducing apparatus is disclosed in which respective light beams are arranged so as to have a predetermined interval in the direction in which the light beams cross a track. Reflected light from an optical recording medium which is produced by irradiation with each of the light beams is detected. The order in which each of the light beams crosses a track is determined based on change, which occurs for every crossing of the track by each of the light beams, of each received reflected light. A number representative of change of reflected light is counted. Based on the crossing order and the number of change, the direction of movement and the speed of movement of the light beams are determined. Based on this information, the light beams are moved to a desired track.

    摘要翻译： 公开了一种多光束记录/再现装置，其中各光束被布置成在光束穿过轨道的方向上具有预定的间隔。 检测由通过每个光束照射而产生的光记录介质的反射光。 基于每个接收到的反射光，基于每个光束的轨道的每个交叉发生的变化来确定每个光束与轨道交叉的顺序。 计数反射光变化的代表数字。 基于交叉顺序和变化次数，确定光束的移动方向和移动速度。 基于该信息，光束被移动到期望的轨道。