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    • 2. 发明授权
    • Objective lens driving unit
    • 物镜驱动单元
    • US4842392A
    • 1989-06-27
    • US52922
    • 1987-05-22
    • Hiroyuki NakamuraMasashi ItoToshiki ItoiAkifumi Hashimoto
    • Hiroyuki NakamuraMasashi ItoToshiki ItoiAkifumi Hashimoto
    • G11B7/09
    • G11B7/093
    • In an objective lens driving unit, an objective lens (12) is fixed to a coil bobbin (11), which has a focus drive coil (13a) wound therearound with its axis coaxial with the axis of the objective lens (12) and tracking dive coils (13b, 13c) wound thereon with their axes perpendicular with the axis of the objective lens (12), and the focus drive coil (13a) and the tracking drive coils (13b, 13c) are put in an open magnetic field produced by a magnetic yoke (14) having permanent magnets (15a, 15b), which makes magnetic flux to cross the coils, thereby to drive the objective lens (12); thus the size of the unit is decreased and made light, and further, the weight of the moving part is made light, to boost sensitivity thereby.
    • 在物镜驱动单元中,物镜(12)被固定到线圈架(11)上,线圈架(11)具有绕其轴线与物镜(12)的轴线同轴的聚焦驱动线圈(13a),并且跟踪 卷绕在其上的潜线圈(13b,13c)的轴线与物镜(12)的轴线垂直,并且聚焦驱动线圈(13a)和跟踪驱动线圈(13b,13c)被置于产生的开放磁场中 通过具有永磁体(15a,15b)的磁轭(14)使磁通量与线圈交叉,从而驱动物镜(12); 因此单元的尺寸减小并变轻,并且进一步使移动部件的重量变轻,从而提高灵敏度。
    • 3. 发明授权
    • Tracking error correction apparatus utilizing phase difference
information derived from four photocells
    • 利用从四个光电池得到的相位差信息的跟踪误差校正装置
    • US4785441A
    • 1988-11-15
    • US4139
    • 1987-01-16
    • Shinichi TanakaHaruo IsakaHiroshi YasudaToshiki Itoi
    • Shinichi TanakaHaruo IsakaHiroshi YasudaToshiki Itoi
    • G11B7/095G11B7/09G11B7/00
    • G11B7/094G11B7/0901G11B7/0909
    • Disclosed herein is an optical information reproducing apparatus having a phase difference tracking system which is free from an influence of a tangential phase difference of output signals from a photodetector. The photodetector comprises first through fourth photocells which are respectively disposed at first through fourth quadrants defined by a first straight line parallel to an information track image and a second straight line perpendicular to the first straight line. Output signals of the first and second photocells are delayed for a specified time by respective first and second delaying circuits. Output signals of the first delaying circuit and the third photocell are added by a first adder, and output signals of the second delaying circuit and the fourth photocell are added by a second adder. A phase comparator produces a tracking error signal from a phase difference between output signals of the first and second adders. Alternatively, a first phase comparator produces a phase difference between the output signals of the first and second photocells, and/or a second comparator produces a phase difference between the output signals of the third and fourth photocells. At least one of output signals of the first and second comparator is used for producing a tracking error signal.
    • 本文公开了一种具有相位差跟踪系统的光信息再现装置,其不受来自光电检测器的输出信号的切向相位差的影响。 光电检测器包括第一至第四光电池,它们分别设置在第一至第四象限之间,第四象限由平行于信息轨道图像的第一直线和垂直于第一直线的第二直线限定。 第一和第二光电管的输出信号由相应的第一和第二延迟电路延迟指定的时间。 第一延迟电路和第三光电池的输出信号由第一加法器相加,第二延迟电路和第四光电管的输出信号由第二加法器相加。 相位比较器从第一和第二加法器的输出信号之间的相位差产生跟踪误差信号。 或者,第一相位比较器产生第一和第二光电池的输出信号之间的相位差,和/或第二比较器产生第三和第四光电池的输出信号之间的相位差。 使用第一和第二比较器的至少一个输出信号来产生跟踪误差信号。
    • 8. 发明授权
    • Assembled battery and battery module
    • 组装电池和电池模块
    • US08197962B2
    • 2012-06-12
    • US13119649
    • 2010-06-28
    • Toshiki ItoiShunsuke YasuiHiroshi Takasaki
    • Toshiki ItoiShunsuke YasuiHiroshi Takasaki
    • H01M6/42
    • H01M2/30H01M2/105H01M2/204
    • In an assembled battery (2), batteries (3) are arranged in such a manner that sealing plates (13) for sealing openings of battery cases (10) face the same direction. Terminal (10) of first electrodes of the batteries (3) are connected to a first electrode connecting pieces (33) arranged near the sealing plates (13), and terminal (13) of second electrodes of the batteries (3) are connected to a second electrode connecting pieces (27) arranged near the sealing plates (13). The first electrode connecting pieces (33) are connected in parallel with each other, and the second electrode connecting pieces (27) are connected in parallel with each other. The first electrode connecting pieces (33) and the second electrode connecting pieces (27) are stacked on the sealing plates (13) with an insulating member (32) interposed therebetween.
    • 在组合电池(2)中,电池(3)以这样的方式布置,即用于密封电池壳体(10)的开口的密封板(13)面向相同的方向。 电池(3)的第一电极的端子(10)连接到设置在密封板(13)附近的第一电极连接片(33),并且电池(3)的第二电极的端子(13)连接到 连接件(27)的第二电极连接在密封板(13)附近。 第一电极连接片(33)彼此并联连接,第二电极连接片(27)彼此并联连接。 第一电极连接片(33)和第二电极连接片(27)之间通过绝缘部件(32)堆叠在密封板(13)上。