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11.发明授权Dither mask generation with calibration-independent number of threshold levels 有权具有校准无关数阈值电平的抖动掩码生成公开(公告)号：US06515770B1
公开(公告)日：2003-02-04
申请号：US09270042
申请日：1999-03-16
IPC分类号： G06K1500
CPC分类号： H04N1/4051 , H04N1/4078
摘要： Calibrated dither masks adaptable to most printers are constructed in such a way that the threshold values can be adapted to a printer so that said printer can print the originally intended number of distinct tone levels. This adaptation can be done computationally so that the time it takes is not prohibitive. Furthermore, the resulting calibrated dither mask is such that there is no need for a tone reproduction curve in the halftoning process.
摘要翻译： 适用于大多数打印机的校准的抖动掩码被构造成使得阈值可以适应于打印机，使得所述打印机可以打印原始预期数量的不同色调级别。 这种适应可以在计算上完成，所以它所需的时间并不太高。 此外，所得到的校准抖动掩模使得在半色调处理中不需要色调再现曲线。
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12.发明授权公开(公告)号：US06450403B1
公开(公告)日：2002-09-17
申请号：US09989697
申请日：2001-11-21
IPC分类号： G06F1760
CPC分类号： G06Q20/04 , G06K7/10861 , G06Q20/042
摘要： An apparatus and method allow to deposit ordinary checks from home or office. A special scanner is used to scan an endorsed check for deposit. The check may have printed thereon encryptions in at least selected locations. Scanning the endorsed check with the scanner to generates a digitized version of the check. The scanner virtually partitions the digitized version of the check into a plurality of regions. These regions may be stripes or zones. Each region is successively examined to extract from the digitized version of the check information from that region. The information extracted from a region is encrypted and transmitted to a bank. Upon acknowledgment from the bank, at least some of the regions of the plurality of regions voided by a form of indelible but non-invasive (e.g. allowing reading after voiding) marking such as punched holes, burned areas, overprinting of a pattern. The processing by the scanner continues until all regions have been processed. This progressively voiding scheme is an important security feature of the invention. The scanner is preferably contained in a secure housing with an encryption processor and the housing preferably includes an arrangement for detecting tampering and preventing normal operation if tampering is detected.
摘要翻译： 一种装置和方法允许从家庭或办公室存放普通支票。 使用特殊扫描仪扫描支票支票以进行存款。 该检查可以在至少选定的位置上印刷有加密。 用扫描仪扫描已核准的支票，以生成支票的数字化版本。 扫描仪将支票的数字化版本实际上分成多个区域。 这些区域可以是条纹或区域。 连续检查每个区域以从该区域的检查信息的数字化版本中提取。 从区域提取的信息被加密并传送到银行。 在来自银行的确认之后，多个区域的至少一些区域通过不可磨灭但非侵入性的形式（例如，允许在排空之后读取）标记被消除，例如冲孔，烧焦区域，图案的套印。 扫描仪继续处理，直到所有区域都被处理。 这种逐渐排空方案是本发明的重要的安全特征。 扫描器优选地包含在具有加密处理器的安全壳体中，并且壳体优选地包括用于检测篡改并且如果检测到篡改则防止正常操作的装置。
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公开(公告)号：US06714318B1
公开(公告)日：2004-03-30
申请号：US09412645
申请日：1999-10-05
申请人： Charles H. Morris, III , Joan L. Mitchell , Chai W. Wu , Gerhard R. Thompson , Charles P. Tresser , Nenad Rijavec
发明人： Charles H. Morris, III , Joan L. Mitchell , Chai W. Wu , Gerhard R. Thompson , Charles P. Tresser , Nenad Rijavec
IPC分类号： H04N140
CPC分类号： H04N1/40087
摘要： Digital halftoning techniques in printers which construct and utilize a mask in a dithering algorithm for a multitone printer are generalized by using a decision matrix in conjunction with a dithering matrix. For each pixel in the image, pixel grey value and a mask threshold value are obtained. Based on these values, a decision is made on the grey level to be printed at each pixel. For extensions to multiple component color images, each component is treated independently as if it were a grey scale image. The mask threshold values and sizes are likely to be tuned per component and therefore different.
摘要翻译： 通过使用结合抖动矩阵的决策矩阵来推广在多音频打印机的抖动算法中构造和利用掩码的打印机中的数字半色调技术。 对于图像中的每个像素，获得像素灰度值和掩码阈值。 基于这些值，对要在每个像素上打印的灰度级进行判定。 对于多组分彩色图像的扩展，每个组件被独立地处理，就像它是灰度图像一样。 掩模阈值和尺寸可能会被调整到每个组件，因此不同。
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公开(公告)号：US06603573B1
公开(公告)日：2003-08-05
申请号：US09182420
申请日：1998-10-30
申请人： Roy L. Adler , Marco Martens , Joan L. Mitchell , Nenad Rijavec , Robert H. Risch , Charles P. Tresser , Chai W. Wu
发明人： Roy L. Adler , Marco Martens , Joan L. Mitchell , Nenad Rijavec , Robert H. Risch , Charles P. Tresser , Chai W. Wu
IPC分类号： H04N152
CPC分类号： H04N1/6058 , H04N1/52
摘要： A method and apparatus for halftoning digital images renders color data subject to constraints on the number of colorants which can be deposited on a single pixel and constraints on consecutive pixels rendered with the same color. The color data to be rendered is mapped into a second data set in an achievable color gamut space. Then, using a digital halftoning method in the achievable color gamut space, the second data set is rendered, so that the constraints are satisfied.
摘要翻译： 用于对数字图像进行半色调的方法和装置使得颜色数据受到可以沉积在单个像素上的着色剂数量的限制，并且以相同颜色呈现的连续像素的约束。 要呈现的颜色数据被映射到可实现的色域空间中的第二数据集。 然后，在可实现的色域空间中使用数字半色调方法，渲染第二数据集，从而满足约束。
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15.发明授权公开(公告)号：US06597813B1
公开(公告)日：2003-07-22
申请号：US09265861
申请日：1999-03-11
IPC分类号： G06K936
CPC分类号： H04N1/4051
摘要： A technique combines most of the advantages of both blue noise and clustering in generating a partially clustered aperiodic mask and using it in a dither array algorithm for halftoning, such that the amount of clustering can be modulated. A method to create an enlarged partially clustered aperiodic dither mask, appearing as a modulated version of a periodic enlargement of original mask, is used when the original mask generates patterns that are not visually pleasing or the original mask doesn't generate enough distinct grey levels. The method of halftoning of grey scale images utilizes a pixel-by-pixel comparison of the image against a partially clustered aperiodic mask in which the clustered aperiodic mask is comprised of a partly random and partly deterministic single valued function which is designed to produce visually pleasing dot configurations when thresholded at any level of grey. A method for changing a number of distinct grey levels a mask can produce to be used in halftoning of grey scale images produces advantages for some printing devices.
摘要翻译： 一种技术将蓝噪声和聚类的大部分优点结合在生成部分聚集的非周期性掩模中，并将其用于用于半色调的抖动阵列算法中，使得可以调制聚类量。 当原始掩模产生不令人满意的图案或者原始掩模不产生足够的不同灰度级时，使用一种形成放大的部分聚集的非周期性抖动掩模的方法，作为原始掩模的周期性放大的调制版本 。 灰度图像的半色调的方法利用图像与部分聚集的非周期掩模的逐像素比较，其中聚集的非周期性掩模由部分随机和部分确定性的单值函数组成，其被设计为产生视觉上令人满意的 在任何灰度级别进行阈值处理时的点配置。 用于改变掩模可以产生用于灰度图像的半色调的不同灰度级数的方法为一些打印设备产生了优势。
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公开(公告)号：US06564322B1
公开(公告)日：2003-05-13
申请号：US09237226
申请日：1999-01-26
IPC分类号： H04L900
CPC分类号： H04N1/32128 , G06F21/10 , G06F21/64 , G06F2211/008 , G06F2221/0733 , G06F2221/0737 , G06T1/0035 , G11B20/00086 , G11B20/0021 , G11B20/00507 , G11B20/00557 , G11B20/00884 , G11B20/0092 , G11B20/1833 , H04L9/3247 , H04L2209/34 , H04L2209/608 , H04N2201/3233
摘要： A watermark in the form of an added message is attached to a digital recording so that a significant content of the recording is completely unchanged by the process in the sense that any reader commonly used for such recording will extract from the recording exactly what would have been extracted in the case the added message had not been attached. This is done by hiding the added message in the error correcting code (ECC) for the significant content of the recording.
摘要翻译： 附加消息形式的水印被附加到数字记录，使得通过该过程完全不改变记录的重要内容，这是因为通常用于这种记录的任何读取器将从记录中精确提取将会是什么 在附加消息未附加的情况下提取。 这通过在纠错码（ECC）中隐藏添加的消息来获得重要的记录内容。
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公开(公告)号：US6055065A
公开(公告)日：2000-04-25
申请号：US132881
申请日：1998-08-12
CPC分类号： H04N1/405 , H04N1/4078
摘要： A method and apparatus for matching the print outputs of two printers having different characteristics. For the purpose of laser printing, or more generally for reproduction on any printing device with limited number of printing levels, a color or grayscale image has to be transformed into an array of printing decisions at each pixel of the output image. Sometimes this array is the only available representation of the original image. One may desire to print this array on a printer with different characteristics from the printer for which the array was originally prepared. The method and apparatus solve this problem by generating a printing decision matrix which takes into account the differences between the two printers.
摘要翻译： 一种用于匹配具有不同特征的两台打印机的打印输出的方法和装置。 为了激光打印的目的，或者更通常地，在具有有限数量的打印级别的任何打印设备上再现，颜色或灰度图像必须被变换成输出图像的每个像素处的打印决定的阵列。 有时这个数组是原始图像的唯一可用表示。 可能希望在具有与原始准备阵列的打印机不同的特征的打印机上打印该阵列。 该方法和装置通过产生考虑到两个打印机之间的差异的打印决策矩阵来解决这个问题。
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公开(公告)号：US5946455A
公开(公告)日：1999-08-31
申请号：US942624
申请日：1997-10-02
申请人： Charles P. Tresser , Chai Wah Wu
发明人： Charles P. Tresser , Chai Wah Wu
CPC分类号： H04N1/4053
摘要： A printing method and apparatus takes into account the errors in the amount of black due to dot shape and size at the pixel where these errors occur, propagates corrections of these errors in order to preserve the logics of error diffusion, and permits a trade-off between completeness of the correction and computational time. The method and apparatus corrects for the actual shape of the printer dots in most error diffusion methods usable in digital halftoning.
摘要翻译： 打印方法和装置考虑到由于这些错误发生的像素处的点形状和大小引起的黑色量的误差，传播这些误差的校正以保持误差扩散的逻辑，并且允许权衡 在校正的完整性和计算时间之间。 该方法和装置在可用于数字半色调的大多数误差扩散方法中校正打印机点的实际形状。
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公开(公告)号：US09064364B2
公开(公告)日：2015-06-23
申请号：US10690778
申请日：2003-10-22
申请人： Naoki Abe , Carl E. Abrams , Chidanand V. Apte , Bishwaranjan Bhattacharjee , Kenneth A. Goldman , Matthias Gruetzner , Matthew A. Hilbert , John Langford , Sriram K. Padmanabhan , Charles P. Tresser , Kathleen M. Troidle , Philip S. Yu
发明人： Naoki Abe , Carl E. Abrams , Chidanand V. Apte , Bishwaranjan Bhattacharjee , Kenneth A. Goldman , Matthias Gruetzner , Matthew A. Hilbert , John Langford , Sriram K. Padmanabhan , Charles P. Tresser , Kathleen M. Troidle , Philip S. Yu
CPC分类号： G06Q20/4016 , G06F21/121 , G06F21/602 , G06F21/6218 , G06F21/6245 , G06F21/72 , G06F2221/07 , G06F2221/2101 , G06Q20/341 , G06Q20/3829 , G06Q2220/00 , G07F7/1008 , G07F7/1083 , G07F19/207 , H04L63/04
摘要： Various embodiments for maintaining security and confidentiality of data and operations within a fraud detection system. Each of these embodiments utilizes a secure architecture in which: (1) access to data is limited to only approved or authorized entities; (2) confidential details in received data can be readily identified and concealed; and (3) confidential details that have become non-confidential can be identified and exposed.
摘要翻译： 用于维护欺诈检测系统内的数据和操作的安全性和机密性的各种实施例。 这些实施例中的每一个都利用安全架构，其中：（1）对数据的访问仅限于批准或授权的实体; （2）接收到的数据的机密细节可以很容易地识别和隐藏; 和（3）可以识别和暴露出非机密的机密细节。
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公开(公告)号：US07370366B2
公开(公告)日：2008-05-06
申请号：US09988320
申请日：2001-11-16
IPC分类号： G06F17/30
CPC分类号： G06F21/6245
摘要： A data management system and method are provided. Specifically, the present invention includes a system for controlling access to data and ensuring that the confidentiality of the data is maintained. In addition, the present invention provides a system for updating data so that confidential data, which has become non-confidential, can be identified and exposed.
摘要翻译： 提供了一种数据管理系统和方法。 具体地说，本发明包括用于控制对数据的访问并确保保持数据的机密性的系统。 此外，本发明提供了一种用于更新数据的系统，使得可以识别和暴露已成为非机密的机密数据。
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