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    • 93. 发明公开
    • Ionographic imaging
    • Ionographische Bilderzeugung。
    • EP0578882A1
    • 1994-01-19
    • EP92306575.9
    • 1992-07-17
    • XEROX CORPORATION
    • Stearns, Richard G.
    • G03G15/05
    • G03G15/323G06K15/14H04N1/29
    • A method and apparatus which solve the problem of poor density and definition of an image formed by an ion current (20) projected from an ionographic print head (10), caused by electric field crosstalk between adjacent modulation electrodes (22) in the head (10). By applying a partial modulation voltage (V M ') to the adjacent modulation electrodes (22), the density of an individual pixel charge is increased and the pixel charge is "addressed" or deflected to a position on a receptor surface (26) more precisely than the pitch dimension between modulation electrodes (22). A data processor (46) intercepts printing driver commands (44) and constructs therefrom values of partial modulation voltage (V M ') by means of an algorithm making deliberate use of the crosstalk phenomenon. The algorithm is pre-defined with respect to image- dependent modulation voltage states and implemented as programmed software or firmware. The partial modulation voltage (V M ') is applied to correlated modulation electrodes (22) in response to the printing driver commands (44), by a controller (50) using modified printing commands (48) to produce a corrected image.
    • 一种解决由离子印刷头(10)突出的离子电流(20)形成的图像的不良密度和定义的问题的方法和装置,其由头部中的相邻调制电极(22)之间的电场串扰引起 10)。 通过对相邻的调制电极(22)施加部分调制电压(VM'),单个像素电荷的密度增加,并且像素电荷被“寻址”或更精确地偏转到接收器表面(26)上的位置 而不是调制电极(22)之间的间距尺寸。 数据处理器(46)通过使故意使用串扰现象的算法截取打印驱动程序命令(44)并从其构建部分调制电压(VM')的值。 该算法相对于图像相关的调制电压状态是预定义的,并且被实现为编程的软件或固件。 响应于打印驱动器命令(44),通过使用修改的打印命令(48)的控制器(50)将部分调制电压(VM')应用于相关调制电极(22)以产生校正图像。
    • 95. 发明公开
    • In situ ionographic uniformity correction
    • 在现代离子平均校正
    • EP0493952A3
    • 1993-03-31
    • EP91311924.4
    • 1991-12-23
    • XEROX CORPORATION
    • Stearns, Richard G.
    • G03G15/05B41J2/415
    • H04N1/401B41J2/415G03G15/323
    • The In Situ Ionographic Uniformity Correction is a method and apparatus which solves the problem of non-uniform density of ion current projected from an ionographic print head (10) caused chiefly by variations in the dimensions of the modulation channel (24). During calibration, the present invention senses ion current (20) using a simplified ion sensor (36) which has an electrode (32), very large in proportion to the width of several modulation electrodes (22). Groups (60), (61) of modulation electrodes (22) are electronically addressed in steps of one modulation electrode (22) each, across the width of the print array (16). To prevent cross-talk from rendering the sensed ion current (20) values unusable, the modulation voltage (Vm(i)) is adjusted by a feedback circuit (42) to achieve a fixed value of ion current (20) for each group (60), (61). Values of this modulation voltage (Vm(i)) are stored in an electronic data file (44). Computation of corrected modulation voltage (Vm(i)') to produce uniform ion current (20), based on average modulation voltage and a print head (10) characteristic constant, is made in a data processor (46) by a programmed algorithm which accesses the data file (44). Corrected values of modulation voltage (Vm(i)') are applied to each correlated modulation electrode (22) through a switching circuit (52). Corrected values of modulation voltage (Vm(i)'), when applied to the correlated modulation electrodes (22), produce ion currents (20) of uniform density and result in uniformity of density in large, grey printed areas.
    • 96. 发明公开
    • Electrostatic recorder
    • 静电记录仪
    • EP0516435A2
    • 1992-12-02
    • EP92304869.8
    • 1992-05-28
    • XEROX CORPORATION
    • Hansen, Lorin K.White, Stephen D.
    • G03G15/05G06K15/14H04N1/40B41J2/395
    • B41J2/395
    • An electrostatic recorder for applying electrical charges, in image configuration, upon a movable image record member (16), the recorder including a stylus electrode array (26) and a counter-electrode array (54) which electrode arrays are aligned with one another on opposite sides of the path of the image record member and are positioned so as to extend across the direction of movement of the record member. The counter-electrode array comprises a base member (50) supporting a plurality of electrically conductive traces (54, 56) thereon, each aligned with the direction of movement. The conductive traces are spaced apart by a layer of resistive material, and contact pads (58) are connected to periodically-spaced traces so as to apply electrical potentials to spaced regions of the counter-electrode array. Some conductive traces located intermediate the periodically spaced conductive traces may be electrically floating.
    • 一种静电记录器,用于将图像构造中的电荷施加到可移动图像记录构件(16)上,所述记录器包括触针电极阵列(26)和对电极阵列(54),所述电极阵列彼此对齐 图像记录部件的路径的相对侧,并定位成横跨记录部件的移动方向延伸。 对电极阵列包括支撑其上的多个导电迹线(54,56)的基底构件(50),每个导电迹线与移动方向对齐。 导电迹线由一层电阻材料隔开,并且接触垫(58)连接到周期性间隔的迹线,以便将电势施加到对电极阵列的间隔区域。 位于周期性间隔的导电迹线中间的一些导电迹线可以是电浮置的。
    • 100. 发明申请
    • MULTI-COLOR LASER-ETCHED IMAGES
    • 多色激光刻蚀图像
    • WO2007051088A2
    • 2007-05-03
    • PCT/US2006060142
    • 2006-10-21
    • PRICE THOMAS MPRICE CARRDELLA T
    • PRICE THOMAS MPRICE CARRDELLA T
    • G03G15/05
    • G03G15/2007B41M5/262B41M7/0081B44B7/00B44F1/08G03G15/6591G03G2215/00523G03G2215/2074
    • A color image is fused on a hard surface by a laser beam. A first color layer of toner particles is fused in accordance with a first color separation of a color image at a first screen angle. A second color layer of toner particles is fused in accordance with a second color separation of a color image at a second screen angle. A third color layer of toner particles is fused in accordance with a third color separation of a color image at a third screen angle. A fourth color layer of toner particles is fused in accordance with a fourth color separation of a color image at a fourth screen angle. The screen angles and offsets of the focal point of the laser beam are selected for each color to optimize the colors fused onto the surface.
    • 彩色图像通过激光束融合在硬表面上。 调色剂颗粒的第一颜色层根据第一屏幕角度的彩色图像的第一颜色分离而熔合。 根据第二屏幕角度的彩色图像的第二颜色分离,调色剂颗粒的第二彩色层被熔合。 根据第三屏幕角度的彩色图像的第三颜色分离,调色剂颗粒的第三颜色层熔合。 根据第四屏幕角度的彩色图像的第四颜色分离,熔融调色剂颗粒的第四颜色层。 为每种颜色选择激光束的焦点的屏幕角度和偏移,以优化融合到表面上的颜色。