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    Color image processing apparatus capable of suppressing moire
    1.
    发明授权
    Color image processing apparatus capable of suppressing moire 失效
    能够抑制莫尔条纹的彩色图像处理装置

    公开(公告)号：US5572600A

    公开(公告)日：1996-11-05

    申请号：US263687

    申请日：1994-06-22

    申请人： Joji Tajima ,  Mitsuo Kaji ,  Miki Ito ,  Akira Ito ,  Youichi Sato

    发明人： Joji Tajima ,  Mitsuo Kaji ,  Miki Ito ,  Akira Ito ,  Youichi Sato

    IPC分类号： H04N1/52 ,  H04N1/40

    CPC分类号： H04N1/52

    摘要： An image data generating circuit of a color image processing apparatus generates multivalued image data for each color in accordance with density of each color of magenta (M), cyan (C) and yellow (Y). An M-screen threshold value generating circuit outputs a plurality of first threshold values, a C-screen threshold value generating circuit outputs a plurality of second threshold values, and a Y-screen threshold value generating circuit for outputting a plurality of third threshold values. A comparing circuit compares the multivalued image data outputted from the image data generating circuit with the first to third threshold values outputted from the M-, C- and Y- screen generating circuits for each color to output a comparison result in the form of a binary signal. The first and second threshold values is assigned to each pixel of an M multi-cell and a C multi-cell constituted by square matrixes having screen angles of .+-.tan.sup.-1 (q/p) and each side of .beta..multidot.p.multidot.q, respectively. For preventing coarse moire, p and q are any value of (11,3), (15,4) and (19,5), and the M multi-cell and the C multi-cell consist of N (=p.sup.2 +q.sup.2) sub-cells arrayed continuously in the directions of the screen angles of .+-.tan.sup.-1 (q/p) and having threshold values in accordance with the predetermined number of gradations. The third threshold value is assigned to a Y multi-cell constituted by a square matrix having a screen angle of 45 degrees and each side of .beta..multidot.p.multidot.q. The Y multi-cell consists of 2(p-q).sup.2 sub-cells arrayed continuously in the direction of the screen angle of 45 degrees. The first to fourth threshold values are repeatedly outputted in a cycle of .beta..multidot.p.multidot.q in synchronism with the multivalued image data of each color.

    摘要翻译： 彩色图像处理装置的图像数据生成电路根据品红色（M），青色（C）和黄色（Y）的各颜色的浓度，生成各颜色的多值图像数据。 M屏幕阈值产生电路输出多个第一阈值，C屏幕阈值产生电路输出多个第二阈值，以及Y屏幕阈值产生电路，用于输出多个第三阈值。 比较电路将从图像数据产生电路输出的多值图像数据与从M，C和Y屏幕生成电路输出的每种颜色的第一至第三阈值进行比较，以二进制形式输出比较结果 信号。 第一和第二阈值被分配给M多单元的每个像素和由具有+/- tan-1（q / p）的屏幕角度和βxpxq的每一边的方阵组成的C多单元格 。 为了防止粗莫尔条纹，p和q是（11,3），（15,4）和（19,5）的任何值，M多单元和C多单元由N（= p2 + q2 ）子单元在+/- tan-1（q / p）的屏幕角度的方向上连续排列并且具有根据预定数量的灰度的阈值。 第三阈值被分配给由具有45度的屏幕角度和βxpxq的每一边的正方形矩阵构成的Y多单元格。 Y多单元由在屏幕角度为45度的方向上连续排列的2（p-q）2个子单元组成。 与每种颜色的多值图像数据同步地，以β×pxq的周期重复输出第一至第四阈值。

    Semiconductor integrated circuit device
    6.
    发明授权
    Semiconductor integrated circuit device 有权

    公开(公告)号：US06452851B1

    公开(公告)日：2002-09-17

    申请号：US09830416

    申请日：2001-04-27

    申请人： Hitoshi Endo ,  Katsuhiko Wakasugi ,  Youichi Sato ,  Kazuyoshi Sato

    发明人： Hitoshi Endo ,  Katsuhiko Wakasugi ,  Youichi Sato ,  Kazuyoshi Sato

    IPC分类号： G11C700

    CPC分类号： G11C11/419 ,  G11C5/025

    摘要： A memory cell array configured using static memory cells is provided with pre-amplifiers each of which receives a signal of a memory cell, which is read into each complementary bit line pair, and a main amplifier which receives a signal outputted from each of the pre-amplifiers. The number of the plurality of memory cells connected to the complementary bit lines is restricted in such a manner that the amplitude of the signal read into each complementary bit line pair, which is supplied to the input of the pre-amplifier, becomes greater than that of a signal outputted from the pre-amplifier during a period of from the selection of a word line to the start of the operation of the main amplifier.

    Policing control apparatus
    8.
    发明授权
    Policing control apparatus 失效
    监管控制装置

    公开(公告)号：US5394408A

    公开(公告)日：1995-02-28

    申请号：US15343

    申请日：1993-02-08

    申请人： Motoo Nishihara ,  Takatoshi Kurano ,  Naoaki Yamanaka ,  Youichi Sato

    发明人： Motoo Nishihara ,  Takatoshi Kurano ,  Naoaki Yamanaka ,  Youichi Sato

    IPC分类号： H04L12/54 ,  H04L12/70 ,  H04Q11/04 ,  G06F11/00 ,  H03M13/00

    CPC分类号： H04L12/5602 ,  H04L2012/5625 ,  H04L2012/5627 ,  H04L2012/5636

    摘要： A policing control apparatus having a cell input terminal receiving asynchronous transmission communication network cells; a policing circuit coupled to the input terminal for policing transmission of cells according to policing information; a cell output terminal from the policing circuit for outputting policed cells; a count memory in the policing circuit for storing a count value of the cells supplied to the policing circuit and for supplying the count value as the policing information; and a self-diagnosing circuit for monitoring problems and abnormalities of stored contents in the count memory and outputting an alarm upon detection of a problem or abnormality.

    摘要翻译： 一种监控控制装置，具有接收异步传输通信网络小区的小区输入终端; 耦合到所述输入终端的监管电路，用于根据监管信息来监管小区的传输; 来自用于输出监控单元的监管电路的单元输出端子; 所述监管电路中的计数存储器，用于存储提供给所述监管电路的小区的计数值，并将所述计数值作为所述监管信息提供; 以及用于监视计数存储器中的存储内容的问题和异常的自诊断电路，并且在检测到问题或异常时输出警报。