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    • 71. 发明申请
    • PLASMA DISPLAY MODULE
    • 等离子显示模块
    • US20090231235A1
    • 2009-09-17
    • US11720946
    • 2005-06-20
    • Akira OtsukaTakashi SasakiAkihiro Takagi
    • Akira OtsukaTakashi SasakiAkihiro Takagi
    • G09G3/28
    • G09G3/296G09G2330/02
    • In a plasma display module, the cost and size of a power supply circuit are reduced. A plasma display module comprising a plasma display panel (1) having an address electrode, which selects the address of a display pixel, a Y-electrode, which selects a display pixel, and an X-electrode which applies the sustain discharge voltage of a selected pixel; an address electrode drive circuit (4); a Y-electrode drive circuit (2); an X-electrode drive circuit (3); a control circuit (5); and a power supply circuit (6); wherein the power supply circuit (6) includes, between a discharge sustain voltage line (Vs) and a ground (G), an electric field capacitor (61) and an electric double-layer capacitor (62) the capacitance of which can accumulate a charge that is 20 or more times the discharge current of one frame, and wherein each of the Y-electrode and X-electrode drive circuits (2,3) includes, between the discharge sustain voltage line (Vs) and the ground (G), a film capacitor (Cf), a ceramic capacitor (not shown) and/or an electric field capacitor (Cd) used for flowing a high frequency current.
    • 在等离子体显示模块中,降低了电源电路的成本和尺寸。 一种等离子体显示模块,包括具有寻址电极的等离子体显示面板(1),其选择显示像素的地址,选择显示像素的Y电极和施加了维持放电电压的X电极 所选像素; 地址电极驱动电路(4); Y电极驱动电路(2); X电极驱动电路(3); 控制电路(5); 和电源电路(6); 其中所述电源电路(6)在放电维持电压线(Vs)和地(G)之间包括电容器(61)和双电层电容器(62),其电容可以积累一 电荷为一帧的放电电流的20倍以上,并且其中,所述Y电极和X电极驱动电路(2,3)中的每一个在所述放电维持电压线(Vs)和所述地(G)之间包括, ,薄膜电容器(Cf),陶瓷电容器(未示出)和/或用于流过高频电流的电场电容器(Cd)。
    • 76. 发明申请
    • Method for driving plasma display panel, and plasma display device
    • 用于驱动等离子体显示面板的方法和等离子体显示装置
    • US20090027308A1
    • 2009-01-29
    • US11919629
    • 2005-08-04
    • Takashi SasakiAkira OtsukaAkihiro Takagi
    • Takashi SasakiAkira OtsukaAkihiro Takagi
    • G09G3/28
    • G09G3/2022G09G3/2922G09G3/2927G09G3/2946G09G2320/0238G09G2320/0271G09G2360/16
    • Provided is a method for driving plasma display panel capable of changing the quantity of emission in an erasure discharge. The method drives a plasma display panel including a scan electrode drive circuit (3) for driving scan electrodes (112), a sustain electrode drive circuit (2) for driving sustain electrodes (111), an address electrode drive circuit (4) for driving address electrodes (121), and a control circuit (5) for controlling the actions of the individual drive circuits. The individual drive circuits are driven for a reset period, in which one field is divided for actions into a plurality of sub-fields for adjusting the electric charges in cells, for an address period, in which cells to be issued are designated, for a sustain period, in which discharges are repeated with the scan electrodes and the sustain electrodes to cause the emissions of the cells, and for an erase period, in which the quantity of wall charges formed in the cell having emitted finally of the sustain period is reduced. Erasure waveforms of at least two kinds having different emission quantities are selected and applied by the drive method of the erase period. The erasure waveforms are arbitrarily selected for the erase period of each sub-field.
    • 提供一种用于驱动能够改变擦除放电中的发射量的等离子体显示面板的方法。 该方法驱动等离子体显示面板,其包括用于驱动扫描电极的扫描电极驱动电路(3),用于驱动维持电极(111)的维持电极驱动电路(2),用于驱动的​​寻址电极驱动电路(4) 寻址电极(121)和用于控制各个驱动电路的动作的控制电路(5)。 单独的驱动电路被驱动复位周期,其中一个场被划分为用于调整单元中的电荷的多个子场中的动作,其中指定要发出的单元的地址周期为 维持周期,其中扫描电极和维持电极重复放电以引起单元的发射,以及擦除周期,其中在维持周期最后发射的单元中形成的壁电荷量减少 。 通过擦除周期的驱动方法选择并施加具有不同发射量的至少两种的擦除波形。 对每个子场的擦除周期任意选择擦除波形。
    • 78. 发明授权
    • Optical waveguide circuit
    • 光波导电路
    • US06925228B2
    • 2005-08-02
    • US10320189
    • 2002-12-16
    • Shin KameiMotohaya IshiiAkihiro TakagiTakeshi Kitagawa
    • Shin KameiMotohaya IshiiAkihiro TakagiTakeshi Kitagawa
    • G02B6/12G02B6/122G02B6/125G02B6/34G02B6/26
    • G02B6/12019G02B6/1228G02B6/125G02B2006/121
    • A practical optical waveguide circuit is provided which includes many intersections but is low loss. The width of a waveguide core is w1 at input and output terminal sections and w2 at an intersecting section, where w2>w1. The core width of the intersecting section is made different from that of the input and output terminal sections, or the core height of the intersecting section is made different from that of the input and output terminal sections. The core width is smoothly varied between the intersecting section and the input and output terminal sections by a tapered section. When the number of the waveguides intersecting with the intersecting section is 100, the intersection loss is 5.8 dB for the conventional device where w2=w1=5 μm, but is 1.8 dB when w2=12 μm, thereby being able to reduce the intersection loss sharply.
    • 提供了一种实用的光波导电路,其包括许多交叉点,但是具有低损耗。 在输入和输出端子部分处的波导芯的宽度为w 1,在交叉部分处为w 2 2,其中w 2 2 < SUB> 1 。 使交叉部分的芯部宽度与输入和输出端子部分的芯宽不同,或者使交叉部分的芯高度与输入和输出端子部分的芯高度不同。 芯部宽度通过锥形部分在交叉部分和输入和输出端子部分之间平滑地变化。 当与交叉部分相交的波导的数量为100时,对于其中w 2 2 = w 1 = 5mum的常规装置,交叉损耗为5.8dB,但是 当w 2 2 = 12时为1.8dB,从而能够急剧减少交叉损失。
    • 80. 发明授权
    • Guided-wave optical branching device
    • 导波光分路器
    • US5165001A
    • 1992-11-17
    • US685131
    • 1991-04-15
    • Akihiro TakagiMasao KawachiKaname Jinguji
    • Akihiro TakagiMasao KawachiKaname Jinguji
    • G02B6/122G02B6/125G02B6/28G02B6/34
    • G02B6/2821G02B6/125
    • A guided-wave optical branching device having optical waveguides disposed on a substrate. The waveguides are partially arranged to be close to each other to form a tapered directional coupler in which the waveguides are point symmetrical or line symmetrical. Alternatively, the waveguides are neither line symmetrical nor point symmetrical. The tapered directional coupler reduces the wavelength dependence of the coupling ratio of the output power derived from the branching device. The widths of the waveguides in the parallel coupling region, the length of the coupling region in the symmetrical or asymmetrical directional coupler, the asymmetrical parameters or the like are set at values determined in accordance with the wavelength range used, so that the wavelength dependence of the coupling ratio of the power between the input port and the output port is reduced in a desired wavelength range, for example, 1.2 .mu.m-1.8 .mu.m.
    • 一种具有设置在基板上的光波导的导波光分支装置。 波导部分地布置成彼此靠近以形成锥形定向耦合器,其中波导是点对称或线对称的。 或者,波导既不是线对称的,也不是点对称的。 锥形定向耦合器降低了从分支器件导出的输出功率的耦合比的波长依赖性。 平行耦合区域中的波导的宽度,对称或非对称定向耦合器中的耦合区域的长度,不对称参数等被设置为根据所使用的波长范围确定的值,使得波长依赖性 输入端口和输出端口之间的功率的耦合比在期望的波长范围内减小,例如为1.2μm-1.8μm。