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    • 1. 发明授权
    • Distributed PWM halftoning unit and printer
    • 分布式PWM半色调单元和打印机
    • US06191868B1
    • 2001-02-20
    • US09146348
    • 1998-09-03
    • Takeshi ShibuyaTadashi OkadaMasayuki KandaEiji YoshinoAtsushi OnoseTatsuki InuzukaToshiaki Nakamura
    • Takeshi ShibuyaTadashi OkadaMasayuki KandaEiji YoshinoAtsushi OnoseTatsuki InuzukaToshiaki Nakamura
    • H04N152
    • H04N1/4058
    • In a halftoning unit of a laser printer and the like, a high speed, high density and high gradations halftoning is realized by multi-value implementation by clustered dot concentrated dither halftoning (known as a sub-matrix method) and PWM distributing gradation among the plurality of halftone dots with a small memory and circuit. For this purpose, the value of the difference between an input gradation value ni and a threshold value nc, &Dgr;n=ni−nc, is shortened within a range of 0 to &Dgr;h and the lower s bit of &Dgr;h is removed by a round-down or round-up process. Meanwhile, a threshold array is generated from an extended threshold pattern obtained by combining threshold patterns of 2s whose threshold interval is &Dgr;h, i.e. &Dgr;Ah×K, &Dgr;h×K+1, . . . , &Dgr;×K+2(s−1). Thereby, a halftone dot dither process in which the PWM gradation increases distributively among the 2s dots may be realized with a small scale memory and circuit.
    • 在激光打印机等的半色调单元中,通过集群点集中抖动半色调(称为子矩阵法)的多值实现和PWM分配灰度等级来实现高速,高密度和高等级的半色调 多个具有小存储器和电路的半色调点。 为此,输入灰度值ni和阈值nc之间的差值DELTAn = ni-nc在0到DELTAh的范围内缩短,并且通过向下舍入来去除DELTAh的较低s位 或综合处理。 同时,通过组合其阈值间隔为DELTAh的2s的阈值模式(即DELTAAhxK,DELTAhxK + 1)获得的扩展阈值模式来生成阈值阵列。 。 。 ,DELTAxK + 2(s-1)。 由此,可以利用小尺度的存储器和电路来实现其中PWM等级在2s点之间分布增加的半色调点抖动处理。
    • 4. 发明授权
    • Apparatus for reading original
    • 读取原件的装置
    • US5012353A
    • 1991-04-30
    • US201869
    • 1988-06-03
    • Eiji YoshinoYasumasa MatsudaTakahiro Yamada
    • Eiji YoshinoYasumasa MatsudaTakahiro Yamada
    • H04N1/10H04N1/38
    • H04N1/1026H04N1/1017H04N1/1043H04N1/38H04N2201/0422H04N2201/0436
    • An original reading apparatus reads out an original which is laid with its surface to be read being directed upward, to thereby convert the read information into an image information. The original reading apparatus has a digitizer function so that a partial reading region of the original is assigned and read out after operator's confirmation by direct observation from an upper side of the surface to be read of the original. A transparent plate on which is depicted reference coordinates for showing a readable region of the apparatus is provided in the vicinity of the original, and a position of the original is finely adjusted on the basis of the reference coordinates. A reading sensor and a carriage mechanism of the original reading apparatus are received in a rotatable upper cover of the apparatus. In case of a large size original, the information thereof is read without any fold or cut of the original.
    • 原稿读取装置读出被放置的要被读取的表面向上的原件,从而将读取的信息转换为图像信息。 原始读取装置具有数字化器功能,使得在操作者通过从原件的待读取表面的上侧直接观察确认之后,分配原稿的部分读取区域并读出。 在原件附近设置有用于示出装置的可读区域的参考坐标的透明板,并且基于参考坐标精细地调整原件的位置。 原始读取装置的读取传感器和滑架机构被容纳在装置的可旋转上盖中。 在大尺寸原稿的情况下,读取其信息而没有原稿的折叠或切割。
    • 5. 发明申请
    • IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREFOR
    • 图像拾取装置及其控制方法
    • US20090040332A1
    • 2009-02-12
    • US12185743
    • 2008-08-04
    • Eiji YoshinoChiyumi NiwaDaisuke Hirohashi
    • Eiji YoshinoChiyumi NiwaDaisuke Hirohashi
    • H04N5/228H04N5/222
    • H04N5/23293H04N5/2354
    • An image pickup apparatus includes a display unit configured to display a setting item screen for displaying setting items regarding a photographic condition, and a setting value screen configured to display setting values regarding the setting item selected on the setting item screen; an operation unit configured to select one of the setting items on the setting item screen and to select one of the setting values on the setting value screen; and a control unit configured to set a setting item regarding the photographic condition according to the setting value selected on the setting value screen, wherein if a state of the image pickup apparatus is changed from a state in which the selected setting item is active to non-active, the display unit continuously displays information indicating that the selected setting item is currently selected even when the selected setting item is non-active.
    • 图像拾取装置包括:显示单元,被配置为显示用于显示关于照相条件的设置项目的设置项目屏幕;以及设置值屏幕,被配置为显示关于在设置项目屏幕上选择的设置项目的设置值; 操作单元,被配置为选择所述设置项目屏幕中的一个设置项目并且在所述设置值屏幕上选择所述设置值中的一个; 以及控制单元,被配置为根据在设定值画面上选择的设定值来设定与摄影条件有关的设定项目,其中,如果摄像设备的状态从所选择的设定项目有效的状态改变为非 即使当所选择的设置项目不活动时,显示单元也连续地显示指示所选择的设置项目当前被选择的信息。