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1. 发明授权

US5101236A Light energy control system and method of operation 失效
标题翻译：光能控制系统及其运行方式
公开(公告)号：US5101236A
公开(公告)日：1992-03-31
申请号：US454205
申请日：1989-12-21
申请人： William E. Nelson , Larry D. Mitcham
发明人： William E. Nelson , Larry D. Mitcham
IPC分类号： B41J2/525 , G02B26/08 , G02B27/09 , G03G15/04 , G03G15/043 , G03G15/22 , G06K15/12 , H04N1/23
CPC分类号： G03G15/04 , B41J2/465 , G02B26/0816 , G06K15/12 , G06K15/1252 , G03G15/0435
摘要： There is disclosed a light energy management system for use in conjunction with, in one embodiment, the exposure unit of a xerographic reproduction system. The light management system serves to funnel the unmodulated light for proper impact on a modulating device and to maintain the dark effect of the device when in the unmodulated mode. Light baffles are used for this purpose, some of which are formed as a series of angular steps designed to eliminate unwanted light along the longitudinal axis of the modulated light path. The angular step, in one embodiment, takes the shape of a semi-circular bee thorax. The modulated light path includes a light focus lens and a pair of mirrors for sending the modulated light pulses to the reproduction process surface.
摘要翻译：公开了一种在一个实施例中与静电复印系统的曝光单元结合使用的光能管理系统。光管理系统用于对未调制的光进行漏斗，以适当地影响调制装置，并且在未调制模式下保持装置的暗影响。光挡板用于此目的，其中一些形成为被设计为消除沿调制光路的纵向轴线的不需要的光的一系列角度台阶。在一个实施例中，角阶段采取半圆形的蜂胸部的形状。调制光路包括光聚焦透镜和用于将调制的光脉冲发送到再现处理表面的一对反射镜。

2. 发明授权

US5072239A Spatial light modulator exposure unit and method of operation 失效
标题翻译：空调光调制器曝光单元及其操作方法
公开(公告)号：US5072239A
公开(公告)日：1991-12-10
申请号：US454566
申请日：1989-12-21
申请人： Larry D. Mitcham , William E. Nelson
发明人： Larry D. Mitcham , William E. Nelson
IPC分类号： B41J2/44 , G02B26/10 , G06K15/12
CPC分类号： G06K15/12 , G06K15/1252 , G06K15/1257 , G06K15/1295
摘要： There is disclosed an exposure unit and method of operation having advantage of deformable mirror device (DMD) technology. The exposure unit is used to provide front end image processing for a xerographic process printing system. The unit, in one embodiment, is constructed as a unitary member having a lamp socket, a support for holding a flat DMD substrate, a set of light focusing lenses, an image focusing lens, a light baffle and an extra light trap chamber. The unit is separated from the xerographic drum by a solid base which contains a slot positioned so that the image from the image lens passes therethrough for supplying the image to the drum. The light bundle is directed to the xerographic drum location along an optical path formed by a system of fold mirrors in the lower body of the unitary member.

3. 发明授权

US5247180A Stereolithographic apparatus and method of use 失效
标题翻译：立体照相设备及其使用方法
公开(公告)号：US5247180A
公开(公告)日：1993-09-21
申请号：US814859
申请日：1991-12-30
申请人： Larry D. Mitcham , William E. Nelson
发明人： Larry D. Mitcham , William E. Nelson
IPC分类号： B29C35/08 , B29C67/00 , B29K105/32 , G02B26/08 , G03F7/00 , G03F7/20
CPC分类号： B29C67/007 , G02B26/0841 , G03F7/0037 , G03F7/2012 , G03F7/70416 , B29C2035/0838
摘要： A stereolithographic apparatus is disclosed comprising a vat, a working surface in the vat, an elevating mechanism for controlling the level of liquid within the vat relative to the working surface, an illumination source for emitting radiation, and an area array deformable mirror device. The illumination source emits radiation which is operable to harden a stereolithographic liquid, while the deformable mirror device is operable to reflect the incident radiation onto the surface of the liquid. The deformable mirror device can harden an entire lamina of liquid in one brief exposure interval increasing throughout without sacrificing resolution.

4. 发明申请

US20110188062A1 EXPANSION DIFFICULTY PREDICTION METHOD AND SYSTEM 有权
标题翻译：扩展困难预测方法和系统
公开(公告)号：US20110188062A1
公开(公告)日：2011-08-04
申请号：US12696194
申请日：2010-01-29
申请人： James M. Sweet , William E. Nelson
发明人： James M. Sweet , William E. Nelson
IPC分类号： G06F3/12 , G06K15/02
CPC分类号： G06F3/12 , G06K15/02
摘要： A method and system for predicting expansion difficulty and an expansion time required to perform print-time imaging operations. A print-ready compressed file may be generated by raster image processing of a job description file associated with a rendering job provided by a digital front end. The expansion time with respect to one or more expansion processes may be predicted by a linear equation during assembly of the compressed file. The linear equation may be formulated based on measured compression statistics that relate to profile data within the compressed file. The total expansion time with respect to the rendering job may be then computed by summing the results of the linear equations. The expansion time to perform the print-time imaging operations may be compared with an available time based on an image output terminal speed to improve performance of raster image processing.
摘要翻译：一种用于预测执行打印时成像操作所需的扩展难度和扩展时间的方法和系统。可以通过与由数字前端提供的呈现作业相关联的作业描述文件的光栅图像处理来生成打印就绪压缩文件。相对于一个或多个扩展过程的扩展时间可以通过在压缩文件的组装期间的线性方程来预测。可以基于与压缩文件内的简档数据相关的测量的压缩统计量来形成线性方程式。然后可以通过对线性方程的结果相加来计算相对于再现作业的总扩展时间。可以基于图像输出端速度将执行打印时成像操作的扩展时间与可用时间进行比较，以提高光栅图像处理的性能。

5. 发明授权

US07218784B1 Method and apparatus for controlling image quality and compression ratios 有权
标题翻译：用于控制图像质量和压缩比的方法和装置
公开(公告)号：US07218784B1
公开(公告)日：2007-05-15
申请号：US09562143
申请日：2000-05-01
申请人： Norman W. Zeck , William E. Nelson , Remo J. D'Ortenzio
发明人： Norman W. Zeck , William E. Nelson , Remo J. D'Ortenzio
IPC分类号： G06K9/36
CPC分类号： H04N1/41 , H04N19/12 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/60
摘要： This invention relates to a method and apparatus for controlling image quality and compression ratios in image segmentation. More particularly, the invention is directed to an image segmenting system and method that analyzes and classifies pixel blocks of an image to determine the manner in which the image block should be compressed, e.g. with a lossy or a lossless technique. This approach, which assumes no apriori knowledge of the any specific region of the image, results in effective use of the various known compression techniques and provides improved overall compression ratios and image quality.
摘要翻译：本发明涉及一种用于控制图像分割中的图像质量和压缩比的方法和装置。更具体地，本发明涉及一种图像分割系统和方法，其分析和分类图像的像素块以确定图像块应被压缩的方式，例如，有损或无损技术。这种不考虑图像的任何特定区域的先验知识的方法导致有效地利用各种已知的压缩技术，并提供改进的总体压缩比和图像质量。

6. 发明授权

US06650261B2 Sliding window compression method utilizing defined match locations 有权
标题翻译：使用定义的匹配位置的滑动窗口压缩方法
公开(公告)号：US06650261B2
公开(公告)日：2003-11-18
申请号：US10175242
申请日：2002-06-18
申请人： William E. Nelson , James M. Sweet , Norman W. Zeck , Ronald E. Rider
发明人： William E. Nelson , James M. Sweet , Norman W. Zeck , Ronald E. Rider
IPC分类号： H03M700
CPC分类号： G06T9/005 , H03M7/3086
摘要： An improved sliding window dictionary-based compression method limits the data within the sliding window searched to data strings occurring at each discrete match location within a plurality of predefined discrete match locations, the plurality of predefined discrete match locations comprising a set of non-continuous data positions within the window of data.
摘要翻译：改进的基于滑动窗口字典的压缩方法将搜索到的滑动窗口内的数据限制在多个预定离散匹配位置内的每个离散匹配位置处出现的数据串，所述多个预定离散匹配位置包括一组非连续数据数据窗口内的位置。

7. 发明授权

US5771060A Method for printing control in the process direction 失效
标题翻译：在过程方向上打印控制的方法
公开(公告)号：US5771060A
公开(公告)日：1998-06-23
申请号：US472154
申请日：1995-06-07
申请人： William E. Nelson
发明人： William E. Nelson
IPC分类号： B41J2/465 , B41J2/52 , G06K15/12 , H04N1/04 , H04N1/19 , H04N1/40 , B41J2/47
CPC分类号： H04N1/40031 , B41J2/465 , B41J2/52 , G06K15/1257 , H04N1/00015 , H04N1/00031 , H04N1/00047 , H04N1/0005 , H04N1/00063 , H04N1/00082 , H04N1/04 , H04N1/40025 , H04N1/19 , H04N2201/0458
摘要： Higher quality printing is difficult in implementation in spatial light modulator printers. The two major problems are accomplishing gray scale within the line time constraints, and eliminating staircasing artifacts within the images printed (81). It can be improved by using an alternate way of resetting cells on the spatial light modulator when data is being loaded onto the cells, timing delay (86), horizontal offset (84), and differently sized pixels (80, 82).
摘要翻译：在空间光调制器打印机中实现更高质量的打印是困难的。两个主要问题是在线路时间限制内实现灰度级，并消除了印刷图像中的阶梯伪影（81）。当数据被加载到单元，定时延迟（86），水平偏移（84）和不同大小的像素（80,82）时，可以通过使用在空间光调制器上复位单元的替代方式来改进。

8. 发明授权

US5490009A Enhanced resolution for digital micro-mirror displays 失效
标题翻译：数字微镜显示器增强分辨率
公开(公告)号：US5490009A
公开(公告)日：1996-02-06
申请号：US332023
申请日：1994-10-31
申请人： Vadlamannati Venkateswar , William E. Nelson
发明人： Vadlamannati Venkateswar , William E. Nelson
IPC分类号： G02B26/08 , G02F1/133 , G09G3/34 , G09G5/00 , H04N5/66 , H04N5/74 , G02B26/00
CPC分类号： H04N5/7458 , G02B26/0841
摘要： A display system (20) that uses multiple SLMs (25) to enhance horizontal or vertical resolution, or both. For example, to approximate a two-fold increase in horizontal resolution, the input data is sampled at a doubled rate, and each SLM (25) receives every other sample. Each SLM (25) generates an image, and the two images are partially superposed with a horizontal offset and simultaneously displayed. The resulting output image has a perceived resolution that approximates that of an image generated by an SLM with twice as many pixels per row.
摘要翻译：一种使用多个SLM（25）来增强水平或垂直分辨率或两者的显示系统（20）。例如，为了近似水平分辨率的两倍增加，输入数据以双倍速率进行采样，并且每个SLM（25）接收每隔一个采样。每个SLM（25）生成图像，并且两个图像被部分地叠加有水平偏移并且同时显示。所得到的输出图像具有近似于由SLM生成的图像的感知分辨率，每行具有两倍的像素。

9. 发明授权

US5330878A Method and apparatus for patterning an imaging member 失效
标题翻译：用于图案化成像构件的方法和装置
公开(公告)号：US5330878A
公开(公告)日：1994-07-19
申请号：US47254
申请日：1993-04-14
申请人： William E. Nelson
发明人： William E. Nelson
IPC分类号： G03F7/20 , H01L21/027 , H01L21/30 , H05K3/00 , G03C5/00
CPC分类号： G03F7/70283 , G03F7/2057 , G03F7/70291 , H05K3/0082
摘要： A device for patterning an imaging member (46) is provided. The device comprises a light source (24) which emits light rays (26). Light rays (26) pass through a collimator lens (28) to collimate the light rays (30). The light then strikes a spatial light modulator (32) which is controlled by a computer (40) to reflect the light (42). The light passes through an imaging lens (44) to magnify the pattern for striking imaging member (46). Imaging member (46) is thus patterned by changing modulator (32) by computer (40).
摘要翻译：提供了用于图案化成像构件（46）的装置。该装置包括发射光线（26）的光源（24）。光线（26）穿过准直透镜（28）以准直光线（30）。然后光照射由计算机（40）控制以反射光（42）的空间光调制器（32）。光通过成像透镜（44）以放大用于撞击成像构件（46）的图案。因此，通过用计算机（40）改变调制器（32），成像构件（46）被图案化。

10. 发明授权

US5312779A Color spatial light modulator and method of manufacture 失效
标题翻译：彩色空间光调制器及其制造方法
公开(公告)号：US5312779A
公开(公告)日：1994-05-17
申请号：US888774
申请日：1992-05-26
申请人： William E. Nelson
发明人： William E. Nelson
IPC分类号： G02B26/08 , G02F1/1335 , H01L21/302
CPC分类号： G02B26/0841 , G02F1/133516
摘要： A semiconductor device comprises a plurality of groups of colored cells controllable by electronic circuitry. Each group of colored cells absorb or reflect specified wavelengths of visible light. The electronic signals control the pathways on which each individual cell reflects incident light. A first process for manufacturing such a color spatial light modulator ("SLM") includes aligning a dye-bearing substrate over the spatial light modulator and causing specified portions of the dye to sublimate off of the substrate and condense onto particular cell elements of the spatial light modulator. A second process for producing a colored spatial light modulator places an electrostatic charge in a dye cloud and introduces the charged cloud to the SLM. The dye migrates to those selected cells containing an opposite electrical charge.
摘要翻译：半导体器件包括可由电子电路控制的多组彩色单元。每组彩色细胞吸收或反射指定的可见光波长。电子信号控制各个单元反射入射光的路径。用于制造这种颜色空间光调制器（“SLM”）的第一种方法包括将染料承载衬底对准空间光调制器并使染料的指定部分从衬底升华并冷凝到空间上的特定细胞元件上光调制器。用于产生有色空间光调制器的第二种方法是将静电电荷置于染料云中，并将带电云引入SLM。染料迁移到含有相反电荷的那些选定的细胞。

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