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    • 12. 发明授权
    • Display apparatus based on a digital convergence scheme
    • 基于数字融合方案的显示装置
    • US5194783A
    • 1993-03-16
    • US893944
    • 1992-06-04
    • Masanori OginoTakeo YamadaMiyuki IkedaTakashi AzumaSatoshi Ootomo
    • Masanori OginoTakeo YamadaMiyuki IkedaTakashi AzumaSatoshi Ootomo
    • G09G1/00G09G1/04H04N9/28
    • G09G1/04G09G1/002H04N9/28
    • A digital convergence correction circuit for a CRT display unit deals with the problem of an excessive calculation time of the microprocessor expended for the vertical interpolation by using at least two pieces of ROM (read only memory) devices connected together. The circuit deals with the problem of a step variation of brightness by employment of a novel slope interpolation means which implements interpolation based on a continuous waveform of the first-order differential coefficient at the lattice points of the display screen and a curve interpolation means which forms a more superior convergence system. The circuit uses a blanking means to prevent abnormal states from appearing on the display screen during the transfer period of the digital convergence correction data of a new format at the switching of the scanning format for a video signal to be displayed. The circuit includes a two-dimensional interpolation means which evaluates a set of lattice point data of the new format based on the parameter of the new format from a set of lattice point data of the old format. Consequently, the circuit eliminates the need of having many expensive ROMs for each scanning line and for each format individually, allowing a smaller ROM capacity and a shorter format switching time, and moreover a reduced number of adjustment steps required for individual formats.
    • 用于CRT显示单元的数字会聚校正电路通过使用连接在一起的至少两条ROM(只读存储器)装置来处理为垂直内插所花费的微处理器的计算时间过长的问题。 该电路通过使用基于显示屏的格子点处的一阶微分系数的连续波形来实现插值的新颖的斜率插值装置和形成图形的曲线插值装置来处理亮度的阶跃变化的问题 更优越的融合系统。 在切换要显示的视频信号的扫描格式的新格式的数字会聚校正数据的传送期间,电路使用消隐装置来防止异常状态出现在显示屏上。 电路包括二维插值装置,其基于来自旧格式的一组格点数据的新格式的参数来评估新格式的一组格点数据。 因此,电路消除了对于每个扫描线和每个格式分别具有许多昂贵的ROM的需要,允许更小的ROM容量和更短的格式切换时间,并且还减少了各种格式所需的调整步骤数量。
    • 13. 发明授权
    • Miss convergence compensating device for projection type display
    • 用于投影型显示的会聚补偿装置
    • US4961030A
    • 1990-10-02
    • US353787
    • 1989-05-18
    • Masanori OginoTakeo YamadaMiyuki IkedaToshiyuki Kimoto
    • Masanori OginoTakeo YamadaMiyuki IkedaToshiyuki Kimoto
    • H04N9/28H04N9/31H04N17/00
    • H04N9/28H04N9/31
    • The present invention relates to a miss convergence compensating circuit of a projection type display. The projection type display is provided with three projection tubes for red, green and blue colors and a color image is obtained by combining three colors from three projection tubes on a screen. When such projection tubes are arranged slant to the screen, miss convergence is generated on the screen. A convergence yoke for auxiliary deflection of electron beam is generally provided in order to compensate for such miss convergence, but this convergence yoke has the deflection sensitivity which is worse than that of deflection yoke. Therefore, the present invention contributes to compensate for miss convergence using the deflection yokes. For this purpose, at least two deflection coils are provided with a transformer coupling which allow the compensating currents corresponding to the miss convergence compensating signals to flow. In this case, the transformer coupling is coupled so that the currents of opposite polarities are caused to flow into at least two deflection coils as the compensating currents.
    • 本发明涉及一种投影型显示器的未来会聚补偿电路。 投影型显示器具有用于红色,绿色和蓝色三种的投影管,并且通过在屏幕上组合来自三个投影管的三种颜色获得彩色图像。 当这样的投影管倾斜地布置在屏幕上时,屏幕上产生错过的会聚。 通常提供用于电子束的辅助偏转的会聚轭,以补偿这种错过会聚,但是该会聚轭的偏转灵敏度比偏转线圈的偏转灵敏度差。 因此,本发明有助于补偿使用偏转轭的未结合。 为此,至少两个偏转线圈设置有变压器耦合,其允许对应于未结收敛补偿信号的补偿电流流动。 在这种情况下,变压器耦合被耦合,使得相反极性的电流作为补偿电流被引入至少两个偏转线圈。
    • 14. 发明授权
    • Horizontal deflection circuit
    • 水平偏转电路
    • US4952850A
    • 1990-08-28
    • US378905
    • 1989-07-12
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • H04N3/22G09G1/00G09G1/04G09G1/16H04N3/27
    • H04N3/27
    • A horizontal deflection circuit for a multiple scan display, capable of controlling the horizontal deflection voltage for a plurality of horizontal scanning frequencies. The output power of the amplifier is controlled on the basis of the result of detection of the data of horizontal size of the image plane so that the horizontal size of the image plane is adjusted to a predetermined size. The data of horizontal size of the image plane is obtained through the detection of the amplitude of a flyback pulse signal. The amplitude of a sawtooth signal for horizontal scanning is controlled according to the deviation of the detected amplitude of the flyback pulse signal from a predetermined value. The horizontal deflection circuit is very simple in construction and is capable of carrying out continuous horizontal deflection according to the horizontal scanning frequency varying in a plurality of levels.
    • 一种用于多扫描显示的水平偏转电路,能够控制多个水平扫描频率的水平偏转电压。 基于对图像平面的水平尺寸的数据的检测结果来控制放大器的输出功率,使得将图像平面的水平尺寸调整到预定的尺寸。 通过检测回扫脉冲信号的幅度来获得图像平面的水平尺寸的数据。 根据检测到的回扫脉冲信号的幅度与预定值的偏差来控制用于水平扫描的锯齿波信号的幅度。 水平偏转电路的结构非常简单,能够根据以多个等级变化的水平扫描频率进行连续的水平偏转。
    • 15. 发明授权
    • Horizontal deflection circuit
    • 水平偏转电路
    • US4897581A
    • 1990-01-30
    • US296824
    • 1989-01-13
    • Masanori OguinoTakeo YamadaMiyuki Ikeda
    • Masanori OguinoTakeo YamadaMiyuki Ikeda
    • H04N3/16H03K4/62H03K4/69
    • H03K4/62H03K4/696
    • A horizontal deflection circuit which including a horizontal output transistor; a damper diode connected in parallel with the horizontal output transistor; a resonant capacitor connected in parallel with the damper diode; a horizontal deflection coil connected in parallel with the horizontal output transistor; and a series resonant circuit connected in parallel with the resonant capacitor. The series resonant circuit is constituted by a series connection of a capacitor and an inductor to perform composite resonance in cooperation with the resonant capacitor. The capacitor and the inductor of the series resonant circuit are designed to have a tertiary resonant frequency. The composite resonance by means of the series resonant circuit and the resonant capacitor enables the top of the flyback pulse to be flattened, so that the waveform of the flyback pulse becomes near the form of rectangular wave. Accordingly, a horizontal deflection circuit having higher retracing capacity can be provided through the same horizontal output transistor as generally used in the prior art.
    • 一种水平偏转电路,包括一个水平输出晶体管; 与水平输出晶体管并联连接的阻尼二极管; 与阻尼二极管并联连接的谐振电容器; 与水平输出晶体管并联连接的水平偏转线圈; 以及与谐振电容器并联连接的串联谐振电路。 串联谐振电路由电容器和电感器的串联连接构成,以与谐振电容器协作进行复合谐振。 串联谐振电路的电容器和电感被设计为具有三次谐振频率。 通过串联谐振电路和谐振电容器的复合谐振使回扫脉冲的顶部变平,使得反激脉冲的波形变成接近矩形波的形式。 因此,可以通过与现有技术中通常使用的相同的水平输出晶体管来提供具有较高回波能力的水平偏转电路。
    • 17. 发明授权
    • Liquid crystal Projection display
    • 液晶投影显示
    • US5758940A
    • 1998-06-02
    • US682030
    • 1996-07-16
    • Masanori OginoYoshiaki IwaharaTakeo YamadaShigeru MoriFumio InoueAkio Yamamoto
    • Masanori OginoYoshiaki IwaharaTakeo YamadaShigeru MoriFumio InoueAkio Yamamoto
    • G03B21/14H04N9/31
    • H04N9/3108G03B21/006G03B21/14G03B21/208H04N9/315H04N9/3155H04N9/3194
    • A liquid crystal projection display capable of functioning at a high light capturing efficiency and a high relative corner illuminance comprises a light source means including a light source, a liquid crystal panel means, a projection lens means and a screen means. A liquid lens formed by sealing a liquid in a space between opposite transparent members is disposed near the light source or the real image of the light source to enhance the relative corner illuminance without reducing the light capturing efficiency by multiplying the angle of divergence of light rays emitted by the light source by the reciprocal of the refractive index of the liquid. A first optical system disposed on the entrance side of the liquid crystal panel is provided with a relative corner illuminance enhancing means comprising a first light converging means disposed relatively near to the light source means, and a second light converging means disposed relatively remote from the light source means. The first light converging means enhances the relative corner illuminance on the entrance surface of the second light converging means.
    • 能够以高的光捕获效率和高的相对角照度起作用的液晶投影显示器包括光源装置,其包括光源,液晶面板装置,投影透镜装置和屏幕装置。 通过在相对的透明构件之间的空间中密封液体而形成的液体透镜设置在光源附近或光源的实像附近,以通过将光线的发散角相乘来降低光捕获效率,从而提高相对的角度照度 由光源发射的液体的折射率的倒数。 设置在液晶面板的入口侧的第一光学系统设置有相对角照明增强装置,包括相对靠近光源装置设置的第一聚光装置和相对远离光的第二聚光装置 源意味着。 第一聚光装置增强第二聚光装置的入射面上的相对角照度。
    • 18. 发明授权
    • Liquid crystal projection display
    • 液晶投影显示
    • US5537171A
    • 1996-07-16
    • US320313
    • 1994-10-11
    • Masanori OginoYoshiaki IwaharaTakeo YamadaShigeru MoriFumio InoueAkio Yamamoto
    • Masanori OginoYoshiaki IwaharaTakeo YamadaShigeru MoriFumio InoueAkio Yamamoto
    • G03B21/14G03B21/62H04N9/31G03B21/00
    • H04N9/3108G03B21/006G03B21/14G03B21/208G03B21/625H04N9/3155H04N9/3194
    • A liquid crystal projection display capable of functioning at a high light capturing efficiency and a high relative corner illuminance comprises a light source means including a light source, a liquid crystal panel means, a projection lens means and a screen means. A liquid lens formed by sealing a liquid in a space between opposite transparent members is disposed near the light source or the real image of the light source to enhance the relative corner illuminance without reducing the light capturing efficiency by multiplying the angle of divergence of light rays emitted by the light source by the reciprocal of the refractive index of the liquid. A first optical system disposed on the entrance side of the liquid crystal panel is provided with a relative corner illuminance enhancing means comprising a first light converging means disposed relatively near to the light source means, and a second light converging means disposed relatively remote from the light source means. The first light converging means enhances the relative corner illuminance on the entrance surface of the second light converging means.
    • 能够以高的光捕获效率和高的相对角照度起作用的液晶投影显示器包括光源装置,其包括光源,液晶面板装置,投影透镜装置和屏幕装置。 通过在相对的透明构件之间的空间中密封液体而形成的液体透镜设置在光源附近或光源的实像附近,以通过将光线的发散角相乘来降低光捕获效率,从而提高相对的角度照度 由光源发射的液体的折射率的倒数。 设置在液晶面板的入口侧的第一光学系统设置有相对角照明增强装置,其包括相对靠近光源装置设置的第一聚光装置和相对远离光的第二聚光装置 源意味着。 第一聚光装置增强第二聚光装置的入射面上的相对角照度。
    • 19. 发明授权
    • Apparatus for detecting a geometric distortion of an image on a display
device
    • 用于检测显示装置上的图像的几何失真的装置
    • US5432404A
    • 1995-07-11
    • US215060
    • 1994-03-21
    • Masanori OginoTakeo YamadaTakashi AzumaJun Onoda
    • Masanori OginoTakeo YamadaTakashi AzumaJun Onoda
    • H01J9/42H04N9/28H04N17/04H01J31/26
    • H04N9/28H01J9/42H04N17/04
    • For the purpose of detecting a geometric distortion of an image on a screen of a CRT display device, i.e., the deviation of the positional coordinates at a high speed and with a high accuracy, the positions of window images having about 10 rows and 10 columns which are arranged in a matrix on the screen of the display device, including a screen frame, are photographed through a predetermined low-pass filter by a monochromatic CCD camera, and further, both the low-light field picture and the high-light field picture are photographed, whereby the positions of the window images can be detected with a high accuracy within 0.1 CCD pixel by the elimination of a dark current, the normalization of detection sensitivity and the interpolation calculation. Therefore, the detection of the geometric distortion can be performed at a high speed and with a high accuracy by an inexpensive monochromatic CCD camera which has the number of pixels less than the total number of pixels of the display device.
    • 为了检测CRT显示装置的屏幕上的图像的几何失真,即高速和高精度的位置坐标的偏差,具有大约10行10列的窗口图像的位置 通过单色CCD摄像机通过预定的低通滤波器对包括屏幕框在内的显示装置的屏幕上排列成矩阵的方式进行拍摄,此外,低光场图像和高光场 通过消除暗电流,检测灵敏度的归一化和内插计算,可以在0.1 CCD像素内以高精度检测窗口图像的位置。 因此,可以通过具有小于显示装置的像素总数的像素数的便宜的单色CCD照相机,以高速和高精度地进行几何失真的检测。