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1. 发明授权

US06608641B1 Electrophotographic apparatus and method for using textured receivers 有权
标题翻译：电子照相设备和使用纹理接收器的方法
公开(公告)号：US06608641B1
公开(公告)日：2003-08-19
申请号：US10184351
申请日：2002-06-27
申请人： Peter Steven Alexandrovich , Richard George Allen , Muhammed Aslam , Jiann-Hsing Chen , Diane M. Herrick , Robert Arthur Lancaster , Yee Seung Ng , Joseph A. Pavlisko , Hwai-Tzuu Tai , Thomas Nathaniel Tombs
发明人： Peter Steven Alexandrovich , Richard George Allen , Muhammed Aslam , Jiann-Hsing Chen , Diane M. Herrick , Robert Arthur Lancaster , Yee Seung Ng , Joseph A. Pavlisko , Hwai-Tzuu Tai , Thomas Nathaniel Tombs
IPC分类号： G03G1500
CPC分类号： G03G15/5029 , G03G15/0105 , G03G15/0131 , G03G2215/0119
摘要： A printer for printing color toner images on a receiver member of any of a variety of textures. The printer has a number of tandemly arranged electrophotographic image-forming modules respectively including a plurality of imaging subsystems to form a colored toner image transferred to a receiver member, the transfer of toner images from each of the modules forming a color print of the receiver member which is fused to form a desired color print. The image quality of the color print is produced by control of nonoperational co-optimization of fusing parameters and imaging subsystem parameters enabling printing on the variety of textures of receiver member.
摘要翻译：用于在各种纹理中的任一种的接收器构件上印刷彩色调色剂图像的打印机。打印机具有多个串联布置的电子照相图像形成模块，分别包括多个成像子系统以形成转印到接收器构件的着色调色剂图像，从形成接收器构件的彩色图案的每个模块转印调色剂图像其被熔化以形成期望的彩色印刷。通过控制融合参数和成像子系统参数的非工作协同优化来实现彩色打印的图像质量，从而能够对接收器构件的各种纹理进行打印。

2. 发明授权

US06466331B1 Multi-bit rendering with single color and two-color capability 失效
标题翻译：具有单色和双色能力的多位渲染
公开(公告)号：US06466331B1
公开(公告)日：2002-10-15
申请号：US08630294
申请日：1996-04-10
申请人： Hwai-Tzuu Tai , Yee Seung Ng , Richard George Allen
发明人： Hwai-Tzuu Tai , Yee Seung Ng , Richard George Allen
IPC分类号： G06F1300
CPC分类号： G03G15/0415 , G03G15/04045 , G03G2215/0402 , G03G2215/0495 , H04N1/502
摘要： In an electrostatographic recording apparatus and method of forming images on a charge retentive surface such as a photoconductive member using a single writer source, the surface is uniformly charged by a corona charger to a predetermined voltage potential level. An image frame is then exposed on a pixel by pixel basis with varying amounts of exposure by the source for at least some pixels to form a tri-state type of latent image on the image frame including a charged area developable (CAD) latent image having at least some exposed pixels at various different sub-levels of exposure within the CAD latent image, a discharged-area developable (DAD) latent image having at least some exposed pixels at various different sub-levels of exposure within said discharged area developable image, and a background area The DAD and CAD latent images are then developed with toners of two different colors by two different developer sources. A second image frame of the uniformly charged surface is also exposed on a pixel by pixel basis with varying amounts of exposure by the source for at least some pixels to form a monochrome latent image wherein at least some exposed pixels are exposed at various different levels of exposure. The monochrome latent image is developed using one of the developer sources and this source is biased differently on the monochrome exposure made from the bias used in the two-color exposure mode. Data representing multicolor pixels are analyzed in accordance with criteria and a determination is made as to whether the pixel is to be recorded in black or another color in the tri-state recording mode.
摘要翻译：在使用单个写入器源的诸如感光体的电荷保持表面上形成图像的静电记录装置和方法中，通过电晕充电器将表面均匀地充电至预定电压电位。然后，以逐个像素为基础对图像帧进行曝光，对于至少一些像素，通过源的不同曝光量在图像帧上形成三态类型的潜像，包括具有带电区域的可显影（CAD）潜像，其具有至少一些曝光像素在CAD潜像内的各种不同的曝光水平，具有在所述放电区域可显影图像内的各种不同子曝光水平下的至少一些曝光像素的放电区可展开（DAD）潜像，和背景区域然后使用两种不同的显影剂来源，使用两种不同颜色的调色剂来开发DAD和CAD潜像。均匀带电的表面的第二图像帧也被逐个像素地曝光，并且通过源至少一些像素的不同曝光量来形成单色潜像，其中至少一些曝光像素以各种不同的等级曝光。使用其中一个显影剂源显影单色潜像，并且在由双色曝光模式中使用的偏压制成的单色曝光上该源偏置不同。根据标准分析表示多色像素的数据，并且确定在三态记录模式中该像素是以黑色还是另一种颜色记录。

3. 发明授权

US07548343B2 Color enhancement method and system 有权
标题翻译：颜色增强方法和系统
公开(公告)号：US07548343B2
公开(公告)日：2009-06-16
申请号：US11262142
申请日：2005-10-28
申请人： Yee Seung Ng , Hwai-Tzuu Tai , Chung-Hui Kuo , Dmitri Anatolyevich Gusev
发明人： Yee Seung Ng , Hwai-Tzuu Tai , Chung-Hui Kuo , Dmitri Anatolyevich Gusev
IPC分类号： G06F15/00 , G06K15/00 , H04N1/40 , G03F3/08 , G06K9/00 , B41J2/385 , B41J2/325
CPC分类号： H04N1/6033 , G03G15/0194 , G03G15/5062 , G03G2215/00063 , G03G2215/00067
摘要： An apparatus and method for calibrating a multi-color imaging system are provided. Color values are measured for each of the different color patches, and compared to target process-sensitive colors color values, representing a weight-adjusted memory color. An error value is calculated. The error value represents a deviation of the measured color values from the target color values. The input values for each colorant then are independently adjusted to reduce the error value to a predetermined degree.
摘要翻译：提供了一种用于校准多色成像系统的装置和方法。对于每个不同的色块测量颜色值，并与目标过程敏感颜色颜色值进行比较，表示重量调整的记忆颜色。计算出错误值。误差值表示测量的颜色值与目标颜色值的偏差。然后，各个着色剂的输入值被独立地调整以将误差值减小到预定的程度。

4. 发明授权

US07139521B2 Gloss and differential gloss control methodology 有权
标题翻译：光泽度和差异光泽度控制方法
公开(公告)号：US07139521B2
公开(公告)日：2006-11-21
申请号：US11021250
申请日：2004-12-21
申请人： Yee Seung Ng , Hwai-Tzuu Tai
发明人： Yee Seung Ng , Hwai-Tzuu Tai
IPC分类号： G03G15/20
CPC分类号： G03G15/6585 , G03G15/2021 , G03G2215/00805 , G03G2215/2074
摘要： Gloss, differential gloss, and image relief of a printed image may be controlled by utilizing a combination of technologies in the appropriate manner. These technologies include the use of transparent toner overcoats, negative transparent toner masks, variable screen transparent toner screen masks, UV coaters, and post-press belt fusing. Unlike conventional systems, which may increase gloss at a cost of also increasing image relief, the present invention may produce an image having a controlled gloss, differential gloss, and image relief.
摘要翻译：可以通过以适当的方式利用技术的组合来控制印刷图像的光泽度，差异光泽度和图像浮雕。这些技术包括使用透明调色剂外涂层，负透明调色剂面罩，可变屏幕透明调色剂屏幕面罩，UV涂布机和后压榨带式定影。与传统的系统不同，传统的系统可以以增加图像浮雕的代价增加光泽度，本发明可以产生具有可控光泽，差别光泽和图像浮雕的图像。

5. 发明授权

US6088050A Non-impact recording apparatus operable under variable recording conditions 失效
标题翻译：在可变记录条件下可操作的非冲击记录装置
公开(公告)号：US6088050A
公开(公告)日：2000-07-11
申请号：US775815
申请日：1996-12-31
申请人： Yee Seung Ng
发明人： Yee Seung Ng
IPC分类号： H04N1/401 , H04N1/407 , H04N1/21
CPC分类号： H04N1/407 , H04N1/4015
摘要： In a non-impact recording apparatus that includes a plurality of recording elements, there is provided a source of first data signals representing for each of plural pixels density, size or percentage of coverage for recording. A first look-up table memory is responsive to the first data signals for adjusting the density, size or percentage coverage of each of the pixels with a gamma adjustment related to density development by the apparatus and generates multibit gamma adjusted second data signals. A second look-up table memory generates a third signal related to a characteristic of the recording elements such as for nonuniformity correction. A process look-up table memory is responsive to the gamma adjusted second data signals and the third signals for generating fourth multibit signals relating to exposure on-times for recording pixels by the recording elements. The use of the three look-up table memories results in substantial saving in memory requirements.
摘要翻译：在包括多个记录元件的非冲击记录装置中，提供表示用于记录的多个像素密度，尺寸或百分比中的每一个的第一数据信号源。第一查找表存储器响应于第一数据信号，用于利用与该设备的密度显影相关的伽马调整来调整每个像素的密度，尺寸或百分比覆盖，并产生多位伽马调整的第二数据信号。第二查找表存储器产生与记录元件的特性相关的第三信号，例如用于不均匀性校正。处理查找表存储器响应于经伽马校正的第二数据信号和第三信号，用于产生与由记录元件记录像素的曝光时间相关的第四多位信号。使用三个查找表存储器可大大节省内存需求。

6. 发明授权

US07508545B2 Color contour detection and correction 有权
标题翻译：颜色轮廓检测和校正
公开(公告)号：US07508545B2
公开(公告)日：2009-03-24
申请号：US10951013
申请日：2004-09-27
申请人： Yee Seung Ng , Chung-Hui Kuo , Dmitri Anatolyevich Gusev
发明人： Yee Seung Ng , Chung-Hui Kuo , Dmitri Anatolyevich Gusev
IPC分类号： H04N1/60 , G03F3/08 , G03G15/00 , G06K9/40
CPC分类号： H04N1/58 , G06T7/12 , G06T2207/10008 , G06T2207/20064 , G06T2207/30176 , H04N1/6033
摘要： A method of printing comprising the steps of detecting a contour in a first color space image, locating the contour, mapping the image into the second image space, and changing the mapping curve shape, changing the printer profile (e.g. changing the printer mapping function), editing the image, or other method to reduce or eliminate perceived contouring.
摘要翻译：一种打印方法，包括以下步骤：检测第一色彩空间图像中的轮廓，定位轮廓，将图像映射到第二图像空间，以及改变映射曲线形状，改变打印机配置文件（例如改变打印机映射功能），编辑图像或其他方法以减少或消除感知的轮廓。

7. 发明授权

US5937147A Printing of enhanced images 失效
标题翻译：打印增强图像
公开(公告)号：US5937147A
公开(公告)日：1999-08-10
申请号：US708272
申请日：1996-09-03
申请人： Yee Seung Ng
发明人： Yee Seung Ng
IPC分类号： G06K15/02 , G06T11/00 , H04N1/40 , G06K15/00
CPC分类号： G06K15/02 , G06T11/001 , H04N1/40068 , G06K2215/006 , G06K2215/0071
摘要： A problem of mismatch in pixel resolution between a front-end device, at one relatively low pixel resolution, and an output device such as a non-impact printer or a display at a higher pixel resolution is overcome by providing for grey level enhancement of low pixel resolution binary image data to minimize jaggies in a printed or displayed image, and then increasing the pixel resolution of the grey level enhanced image data to match that of the output device.
摘要翻译：在一个相对较低的像素分辨率的前端设备和诸如非冲击打印机之类的输出设备或更高像素分辨率的显示器之间的像素分辨率不匹配的问题通过提供低的灰度级增强来克服像素分辨率二进制图像数据以最小化打印或显示图像中的锯齿，然后增加灰度级增强图像数据的像素分辨率以匹配输出设备的像素分辨率。

8. 发明授权

US5739841A Apparatus and method for grey level printing with uniformity correction 失效
标题翻译：用于均匀校正的灰度级打印的装置和方法
公开(公告)号：US5739841A
公开(公告)日：1998-04-14
申请号：US579749
申请日：1995-12-28
申请人： Yee Seung Ng , Hieu Trong Pham
发明人： Yee Seung Ng , Hieu Trong Pham
IPC分类号： H04N1/401 , H04N1/407 , B41J2/435 , B41J2/47
CPC分类号： H04N1/4015 , H04N1/407
摘要： A non-impact printer apparatus includes a printhead having a plurality of recording elements. Nonuniformities in emission characteristics of the recording elements are corrected using look-up tables (LUT) assemblages that include a first LUT wherein the recording elements are binned in accordance with bin values associated with their emission characteristics and a second LUT wherein bin values, output from the first LUT are used to address various tables providing exposure correction. The first and second LUTs are advantageously dual port RAM devices that allow operation during printing while simultaneously allowing loading of data into the tables for use for subsequent printing. Thus, process conditions may be continually monitored and correction data updated without delaying of current printing which may occur using correction data already stored in the LUT assemblages.
摘要翻译：无冲击打印机装置包括具有多个记录元件的打印头。使用包括第一LUT的查找表（LUT）组合来校正记录元件的发射特性的不均匀性，其中记录元素根据与它们的发射特性相关联的二进制数值进行分类，并且其中二进制值输出第一LUT用于提供提供曝光校正的各种表格。第一和第二LUT有利地是双端口RAM设备，其允许在打印期间操作，同时允许将数据加载到表中用于随后的打印。因此，可以连续地监视处理条件并更新校正数据，而不会延迟可能使用已经存储在LUT组合中的校正数据而发生的当前打印。

9. 发明授权

US5914744A Apparatus and method of printing with non-uniformity correction of exposure parameters to reduce low spatial frequency printed artifacts 失效
标题翻译：使用曝光参数的非均匀性校正打印的装置和方法，以减少低空间频率的印刷伪像
公开(公告)号：US5914744A
公开(公告)日：1999-06-22
申请号：US837064
申请日：1997-04-11
申请人： Yee Seung Ng
发明人： Yee Seung Ng
IPC分类号： B41J2/435 , G06K15/12 , H04N1/401 , B41J2/45
CPC分类号： G06K15/1247 , B41J2/435 , H04N1/4015
摘要： A non-impact printer apparatus and method employs a printhead including a plurality of recording elements and drivers for driving respective recording elements in response to data relative to respective corrected exposure times for recording respective pixels. A first data storage device stores data relative to associating sets of respective recording elements with respective bins. The first data storage device is responsive to first input signals identifying respective recording elements and outputs second signals relative to respective bin assignment numbers for the respective recording elements. A second data storage device is responsive to the second signals for outputting data relative to corrected exposure times for recording respective pixels by respective recording elements. The bin assignment determination for recording elements are established by propagating exposure error calculated from an adjacent respective recording element. This is done so that low resolution spatial frequency errors in cross-track recording noticeable by the eye are generally substantially lower than high resolution spatial frequency errors to reduce visible artifacts in recording.
摘要翻译：无冲击打印机装置和方法采用包括多个记录元件和驱动器的打印头，以响应于相对于记录各个像素的相应校正曝光时间的数据来驱动各个记录元件。第一数据存储装置将相对于各个记录元件的相关组的数据与相应的箱存储。第一数据存储设备响应于识别相应记录元件的第一输入信号，并且相对于各个记录元件的相应的箱分配号输出第二信号。第二数据存储装置响应于第二信号，用于相对于由各个记录元件记录各个像素的校正曝光时间输出数据。通过传播从相邻的各个记录元件计算出的曝光误差来建立记录元件的纸盒分配确定。这样做使得由眼睛显着的交叉轨道记录中的低分辨率空间频率误差通常显着低于高分辨率空间频率误差，以减少记录中的可见伪影。

10. 发明授权

US5818501A Apparatus and method for grey level printing with improved correction of exposure parameters 失效
标题翻译：用于灰度级打印的设备和方法，具有改进的曝光参数校正
公开(公告)号：US5818501A
公开(公告)日：1998-10-06
申请号：US580263
申请日：1995-12-28
申请人： Yee Seung Ng , Isaac I. Ajewole , William J. Noonan
发明人： Yee Seung Ng , Isaac I. Ajewole , William J. Noonan
IPC分类号： G06K15/12 , H04N1/401 , B41J2/47 , B41J2/435 , B41J2/45
CPC分类号： H04N1/4015 , G06K15/1247
摘要： A non-impact printer apparatus includes a printhead having a plurality of recording elements. The printhead further includes a non-volatile memory that stores prebinned data representing recording characteristics relative to the recording elements. The prebinned data includes (a) data associating respective recording elements with respective bins; and (b) data relative to a characteristic of each bin. A controller means is located off of the printhead for generating tables for correcting for non-uniformity of the recording elements. The controller uses the prebinned data for generating the tables.
摘要翻译：无冲击打印机装置包括具有多个记录元件的打印头。打印头还包括非易失性存储器，其存储表示相对于记录元件的记录特性的预定数据。预先装入的数据包括（a）将各个记录元素与相应的箱相关联的数据; 和（b）相对于每个仓的特征的数据。控制器装置位于打印头之外，用于产生用于校正记录元件的不均匀性的表格。控制器使用预先装入的数据来生成表。

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