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51. 发明授权

US06608701B1 Compact high addressability rendering 有权
标题翻译：紧凑的高可寻址性渲染
公开(公告)号：US06608701B1
公开(公告)日：2003-08-19
申请号：US09348378
申请日：1999-07-07
申请人： Robert P. Loce , Michael Branciforte , Fritz F. Ebner , Douglas N. Curry , Yeqing Zhang , Leon C. Williams
发明人： Robert P. Loce , Michael Branciforte , Fritz F. Ebner , Douglas N. Curry , Yeqing Zhang , Leon C. Williams
IPC分类号： G06K936
CPC分类号： H04N1/4052 , H04N1/4056
摘要： A compact rendering processor for processing image data including a multi-bit halftone region generates high addressability pixels. The compact rendering processor includes a tagging sub-processor operating on the image data to identify a target pixel and a neighboring pixel to determine a fill-order. The compact rendering processor also includes a rendering sub-processor that converts the target pixel into a high addressability pixel based upon the fill-order. Optionally, a diffusion sub-processor can be included to diffuse an error resulting from the conversion of the target pixel into a high addressability pixel to other pixels within the image data.
摘要翻译：用于处理包括多位半色调区域的图像数据的紧凑渲染处理器产生高可寻址性像素。紧凑渲染处理器包括对图像数据进行操作的标记子处理器，以识别目标像素和相邻像素以确定填充顺序。紧凑渲染处理器还包括渲染子处理器，其基于填充顺序将目标像素转换为高可寻址性像素。可选地，可以包括扩散子处理器以将由目标像素转换成高可寻址性像素所产生的误差扩散到图像数据内的其他像素。

52. 发明授权

US06346993B1 Tone-variation-resistant phase-shiftable halftone screen system and method of using 有权
标题翻译：色差变相相移半色调屏幕系统及其使用方法
公开(公告)号：US06346993B1
公开(公告)日：2002-02-12
申请号：US09244767
申请日：1999-02-05
申请人： Douglas N. Curry
发明人： Douglas N. Curry
IPC分类号： H04N146
CPC分类号： H04N1/52 , H04N1/4058
摘要： An image generating system that warps both the image data and halftone screens of a halftone screen system to minimize moirè patterns. Merely warping image data to minimize moirè patterns results in offsets within the image data which should have a corresponding adjustment or warp in halftone screens used in the image generating system to render the color image separation layers. Therefore, the image generating system provides moirè pattern minimization by warping screens of the halftone screen system to correspond to the warping of the image data. The image generating system uses line screens for halftoning the chromatic image separation layers of color images and a hexagonal dot screen for halftoning the luminescent image separation layer. The halftone screen system uses the relatively large average screen displacement angles offered by line screening while providing a dynamic tone range performance similar to that of the performance of dot screening.
摘要翻译：一种图像产生系统，其使所述半色调屏幕系统的图像数据和半色调屏幕扭曲，以最小化莫尔图案。只有翘曲的图像数据才能最小化莫尔图形，导致在图像数据中的偏移，该图像数据应该在图像生成系统中使用的半色调屏幕中具有相应的调整或扭曲以渲染彩色图像分离层。因此，图像生成系统通过对半色调屏幕系统的屏幕进行翘曲来提供莫尔图案最小化，以对应于图像数据的翘曲。图像生成系统使用用于半色调彩色图像的彩色图像分离层的线条画面和用于半色调发光图像分离层的六边形点划线。半色调屏幕系统使用线路屏蔽提供的相对较大的平均屏幕位移角度，同时提供类似于点划线性能的动态色调范围性能。

53. 发明授权

US06239829B1 Systems and methods for object-optimized control of laser power 有权
标题翻译：激光功率对象优化控制的系统和方法
公开(公告)号：US06239829B1
公开(公告)日：2001-05-29
申请号：US09195165
申请日：1998-11-18
申请人： Douglas N. Curry
发明人： Douglas N. Curry
IPC分类号： B41J247
CPC分类号： H04N1/40037
摘要： A method and apparatus for altering a drive signal provided to an image forming element of a printer based on the type of object being printed, e.g., text and/or lineart, halftone, etc., to provide an optimal exposure level for producing the particular object. The apparatus provides an increased drive signal which, for example, provides an increased laser power during text and/or lineart production using a high setpoint and re-normalizes laser power by providing a decreased drive signal which, for example, provides a decreased laser power during halftone production using a low setpoint. This increased power offers improved appearance of text and/or lineart and the re-normalization offers more quantization levels for tone adjustment, better highlight production, and better overall control of tone during halftone production in a write black printer.
摘要翻译：一种用于基于正在打印的对象的类型（例如文本和/或线性，半色调等）来改变提供给打印机的图像形成元件的驱动信号的方法和装置，以提供用于产生特定的目的。该装置提供增加的驱动信号，其例如在使用高设定点的文本和/或线段生产期间提供增加的激光功率，并通过提供减小的驱动信号来重新归一化激光功率，所述减小的驱动信号例如提供降低的激光功率在使用低设定点的半色调制作过程中。这种增加的功率提供了改进的文本和/或线条的外观，并且重新归一化提供了更多的音调调整量化水平，更好地突出了生产，并且在黑色黑色打印机的半色调生产期间更好地总体控制色调。

54. 发明授权

US6081345A Line screen having extended dynamic tone range for embedding machine readable data in halftone images 失效
标题翻译：线屏幕具有扩展的动态色调范围，用于在半色调图像中嵌入机器可读数据
公开(公告)号：US6081345A
公开(公告)日：2000-06-27
申请号：US015671
申请日：1998-01-29
申请人： Douglas N. Curry
发明人： Douglas N. Curry
IPC分类号： H04N1/387 , G03G21/04 , G06K1/12 , G06K19/06 , G06T1/00 , H04N1/32 , H04N1/405
CPC分类号： G06T1/0021 , G06K1/121 , G06K19/06018 , H04N1/32203 , H04N1/32256 , H04N2201/327
摘要： A high performance halftone shape for embedding machine readable data in printed documents is based on a hyperbola to accommodate the embedded data over an extended dynamic tone range. The shape enables precise tone control and can used for color printing. By rotating the shape 45-degrees, two alternate "ortho-serpentine" structures can be constructed which can be added to the diagonal structures, creating an embedded data system with four orientations. The quadrature system also allows more and varied patterns, but has the disadvantage of additional noise.
摘要翻译：用于在打印文档中嵌入机器可读数据的高性能半色调形状基于双曲线以在扩展动态色调范围内适应嵌入数据。该形状可以进行精确的色调控制，可用于彩色打印。通过旋转45度的形状，可以构造两个可替代的“邻蛇形结构”，可以将其添加到对角线结构中，从而创建具有四个方向的嵌入式数据系统。正交系统还允许更多和多样的模式，但具有附加噪声的缺点。

55. 发明授权

US5233367A Multiple beam interlaced scanning system 失效
标题翻译：多光束隔行扫描系统
公开(公告)号：US5233367A
公开(公告)日：1993-08-03
申请号：US946717
申请日：1992-09-18
申请人： Douglas N. Curry
发明人： Douglas N. Curry
IPC分类号： B41J2/44 , G02B26/10 , G02B26/12 , H04N1/191
CPC分类号： G02B26/123 , H04N1/1912
摘要： An image forming apparatus and method for interlace scanning plural light beams by deflecting the plural beams with a rotating polygon onto a recording medium wherein the spacing between adjacent beams hold the relation ##EQU1## wherein I is an interlace factor equal to the number of reference scans between adjacent beams from a single facet of the polygon on the photoreceptor. The photoreceptor velocity is V.sub.o, w is the polygon angular velocity, f is a number of facets per revolution of the polygon, Q is the number of beams and B is the beam spacing.
摘要翻译：一种图像形成装置和方法，用于通过将旋转多边形的多个光束偏转到记录介质上来隔行扫描多个光束，其中相邻光束之间的间隔保持关系“IMAGE”，其中I是等于参考扫描次数的交错因子在感光体上的多边形的单个面的相邻光束之间。感光体速度为Vo，w为多边形角速度，f为多边形每转面数，Q为光束数，B为光束间距。

56. 发明授权

US4935891A Pseudo-random phase shifted arithmetic bit clock generators for digital printers 失效
标题翻译：用于数字打印机的伪随机相移算术位时钟发生器
公开(公告)号：US4935891A
公开(公告)日：1990-06-19
申请号：US288526
申请日：1988-12-22
申请人： Douglas N. Curry
发明人： Douglas N. Curry
IPC分类号： B41J2/44 , G06K15/12 , H04L7/02 , H04L7/033 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/23
CPC分类号： G06K15/1219 , H04N1/0473 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04786
摘要： An arithmetic frequency synthesizer for generating a bit clock for the flying spot scanner of a digital printer includes means for loading a pseudo-random offset value, accm.sub.i ; into its accumulator at the start of each scan. The offset values for successive scans pseudo-randomly vary within a range 0.ltoreq.accm.sub.i
摘要翻译：一种用于产生数字打印机的飞点扫描仪的位时钟的算术频率合成器，包括用于加载伪随机偏移值的装置，在每次扫描开始时进入其累加器。对于打印机的正常操作所需的所有位时钟频率，连续扫描的偏移值伪随机在0

57. 发明授权

US09030515B2 Single-pass imaging method using spatial light modulator and anamorphic projection optics 有权
标题翻译：使用空间光调制器和变形投影光学的单程成像方法
公开(公告)号：US09030515B2
公开(公告)日：2015-05-12
申请号：US13216877
申请日：2011-08-24
申请人： Timothy David Stowe , Douglas N. Curry , Patrick Y. Maeda
发明人： Timothy David Stowe , Douglas N. Curry , Patrick Y. Maeda
IPC分类号： B41J2/465 , B41J2/447 , B41J2/45
CPC分类号： B41J2/465 , B41J2/447 , B41J2/45
摘要： Substantially one-dimensional scan line images at 1200 dpi or greater are generated in response to predetermined scan line image data. A substantially uniform two-dimensional homogenous light field is modulated using a spatial light modulator in accordance with the predetermined scan line image data such that the modulated light forms a two-dimensional modulated light field. The modulated light field is then anamorphically imaged and concentrated to form the substantially one-dimensional scan line image. The spatial light modulator includes light modulating elements arranged in a two-dimensional array. The light modulating elements are disposed such that each modulating element receives an associated homogenous light portion, and is individually adjustable between an “on” modulated state and an “off” modulated state, whereby in the “on” modulated state each modulating element directs its received light portion onto a corresponding region of the anamorphic optical system, and in the “off” state blocks or diverts the light portion.
摘要翻译：响应于预定的扫描线图像数据，产生基于1200dpi或更大的一维扫描线图像。使用根据预定扫描线图像数据的空间光调制器调制基本上均匀的二维均匀光场，使得调制光形成二维调制光场。然后将调制的光场变形成像并集中以形成基本上一维的扫描线图像。空间光调制器包括以二维阵列布置的光调制元件。光调制元件被布置成使得每个调制元件接收相关联的均匀光部分，并且可以在“接通”调制状态和“关闭”调制状态之间单独调节，由此在“接通”调制状态下，每个调制元件引导其接收光部分到变形光学系统的对应区域，并且在“关闭”状态下阻挡或转移光部分。

58. 发明授权

US08767270B2 Single-pass imaging apparatus with image data scrolling for improved resolution contrast and exposure extent 有权
标题翻译：具有图像数据滚动以提高分辨率对比度和曝光程度的单通成像设备
公开(公告)号：US08767270B2
公开(公告)日：2014-07-01
申请号：US13216702
申请日：2011-08-24
申请人： Douglas N. Curry , Timothy David Stowe , Patrick Y. Maeda
发明人： Douglas N. Curry , Timothy David Stowe , Patrick Y. Maeda
IPC分类号： G02B26/00 , G02B26/08 , G02B26/10 , G02B26/12 , H04N1/04
CPC分类号： H04N1/047 , H04N1/1215 , H04N1/195 , H04N1/19584 , H04N1/19589 , H04N2201/04765 , H04N2201/04789 , H04N2201/04791
摘要： An imaging (e.g., lithographic) apparatus for generating an elongated concentrated scan image on an imaging surface of a scan structure (e.g., a drum cylinder) that moves in a process (cross-scan) direction. The apparatus includes a spatial light modulator having a two-dimensional array of light modulating elements for modulating a two-dimensional light field in response to predetermined scan image data, and an anamorphic optical system is used to anamorphically image and concentrate the modulated light onto an elongated imaging region defined on the imaging surface. To avoid smearing, movement of the imaging surface is synchronized by an image position controller with the modulated states of the light modulating elements such that image features of the scan image are scrolled (moved in the cross-scan direction) at the same rate as the cross-scan movement of the imaging surface, whereby the features remain coincident with the same portion of the imaging surface.
摘要翻译：一种成像（例如，光刻）设备，用于在扫描结构（例如，鼓圆筒）的成像表面上产生细长的浓缩扫描图像，该扫描结构（例如，鼓圆筒）在过程（交叉扫描）方向上移动。该装置包括具有用于响应于预定扫描图像数据调制二维光场的光调制元件的二维阵列的空间光调制器，并且变形光学系统被用于变形图像并将调制的光集中到限定在成像表面上的细长成像区域。为了避免拖尾，成像表面的移动由具有调制光调制元件的调制状态的图像位置控制器同步，使得扫描图像的图像特征以与扫描图像相同的速率滚动（在横扫扫描方向上移动）成像表面的交叉扫描运动，由此特征与成像表面的相同部分保持一致。

59. 发明申请

US20130050775A1 Single-Pass Imaging Apparatus With Image Data Scrolling For Improved Resolution Contrast And Exposure Extent 有权
标题翻译：具有图像数据滚动的单通道成像设备，用于改善分辨率对比度和曝光范围
公开(公告)号：US20130050775A1
公开(公告)日：2013-02-28
申请号：US13216702
申请日：2011-08-24
申请人： Douglas N. Curry , Timothy David Stowe , Patrick Y. Maeda
发明人： Douglas N. Curry , Timothy David Stowe , Patrick Y. Maeda
IPC分类号： H04N1/04
CPC分类号： H04N1/047 , H04N1/1215 , H04N1/195 , H04N1/19584 , H04N1/19589 , H04N2201/04765 , H04N2201/04789 , H04N2201/04791
摘要： An imaging (e.g., lithographic) apparatus for generating an elongated concentrated scan image on an imaging surface of a scan structure (e.g., a drum cylinder) that moves in a process (cross-scan) direction. The apparatus includes a spatial light modulator having a two-dimensional array of light modulating elements for modulating a two-dimensional light field in response to predetermined scan image data, and an anamorphic optical system is used to anamorphically image and concentrate the modulated light onto an elongated imaging region defined on the imaging surface. To avoid smearing, movement of the imaging surface is synchronized by an image position controller with the modulated states of the light modulating elements such that image features of the scan image are scrolled (moved in the cross-scan direction) at the same rate as the cross-scan movement of the imaging surface, whereby the features remain coincident with the same portion of the imaging surface.
摘要翻译：一种成像（例如，光刻）设备，用于在扫描结构（例如，鼓圆筒）的成像表面上产生细长的浓缩扫描图像，该扫描结构（例如，鼓圆筒）在过程（交叉扫描）方向上移动。该装置包括具有用于响应于预定扫描图像数据调制二维光场的光调制元件的二维阵列的空间光调制器，并且变形光学系统被用于变形图像并将调制的光集中到限定在成像表面上的细长成像区域。为了避免拖尾，成像表面的移动由具有调制光调制元件的调制状态的图像位置控制器同步，使得扫描图像的图像特征以与扫描图像相同的速率滚动（在横扫方向上移动）成像表面的交叉扫描运动，由此特征与成像表面的相同部分保持一致。

60. 发明授权

US07359091B2 Multi-bit output sampled threshold array halftoner 失效
标题翻译：多位输出采样阈值阵列半色调
公开(公告)号：US07359091B2
公开(公告)日：2008-04-15
申请号：US10248384
申请日：2003-01-15
申请人： Douglas N. Curry
发明人： Douglas N. Curry
IPC分类号： H04N1/40 , H04N1/405 , G06K15/00
CPC分类号： H04N1/405 , H04N1/4053
摘要： Xerox Reference No. D/A0639A system and method for improving xerographic halftoning by magnifying a threshold array, interpolating the in-between values, enabling multiple thresholds to be accessed simultaneously and presented to multiple comparators, to cause multi-bit output. A threshold array is sampled at distinct locations separated by the sparse sampling distance to allow warping of the threshold array dots by adjusting the sampling distance in small, fractional portions (deltas) of the magnified distance. By adding more thresholds, amplitude or intensity modulation is used to move dot edges in a process direction for further flexibility in printing irrational or warpable screens.
摘要翻译：施乐参考号D / A0639A系统和方法，通过放大阈值阵列来改进静电复印半色调，内插值之间，允许多个阈值被同时访问并呈现给多个比较器，以产生多位输出。在由稀疏采样距离分开的不同位置处对阈值阵列进行采样，以通过调整放大距离的小部分（三角形）中的采样距离来允许阈值阵列点的翘曲。通过添加更多的阈值，可以使用幅度或强度调制来移动过程方向上的点边缘，以进一步灵活地打印不合理或可弯曲的屏幕。

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