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公开(公告)号：US07230657B2
公开(公告)日：2007-06-12
申请号：US10776451
申请日：2004-02-10
IPC分类号： H04N3/26
CPC分类号： H04N9/3155 , H04N5/74 , H04N5/7416 , H04N9/31 , H04N9/3129 , H04N9/3164 , H04N9/3179
摘要： Tools for directing a collection of light emitting devices toward pixel locations to make an image are disclosed. A pixel location is a light emitting device target at least twice during a given frame, and each light emitting device in the collection is directed toward at least two different pixel locations during the frame. Adjacent light emitting devices may be directed toward adjacent pixel locations or toward nonadjacent pixel locations.
摘要翻译： 公开了用于将发光装置的集合引导到像素位置以制作图像的工具。 在给定帧期间，像素位置是发光装置目标至少两次，并且集合中的每个发光装置在帧期间指向至少两个不同的像素位置。 相邻的发光器件可以被引向邻近的像素位置或者朝向不相邻的像素位置。
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公开(公告)号：US06804417B1
公开(公告)日：2004-10-12
申请号：US09539546
申请日：2000-03-31
申请人： Mark D. Lund , Thomas B. Pritchard
发明人： Mark D. Lund , Thomas B. Pritchard
IPC分类号： G06K932
CPC分类号： G06T3/403 , G06K15/02 , G06K15/1871 , H04N1/40068 , H04N1/4092
摘要： Multiple algorithms are applied to expand input image data of a variety of lower resolutions to output image data of a variety of higher resolutions with enhanced text quality, particularly in the black datapath controlling an output device such as an inkjet or laser printer. Enhancement techniques include edge smoothing, bit stripping for large drop weight pens, and drop-weight based ink depletion. Embodiments provide algorithms that convert 600×600 dpi input resolution data to 1200×600 dpi output resolution image data or 300×300 to 600×300 dpi resolution (i.e., asymmetric 2:1 ratio resolution conversion along mutually perpendicular axes), including text edge smoothing, while causing minimal change to gray scaled (halftoned) data within images. The techniques can be applied to other resolutions as well. Some embodiments include unidirectional bitstripping that preserves 1200 dpi edges while applying output pixels at only 600 dpi from 1200 dpi resolution output image data. Some embodiments include drop-weight based depletion to adjust the average ink flux to 32 ng per {fraction (1/600)}th inch cell, thereby preventing excess ink application at high output resolutions, e.g., 1200×600 dpi. In various embodiments, operations are performed in hardware modules and/or performed cooperatively as an integrated process to meet system throughput requirements.
摘要翻译： 应用多种算法来扩展各种较低分辨率的输入图像数据，以输出具有增强文本质量的各种较高分辨率的图像数据，特别是在控制诸如喷墨或激光打印机的输出设备的黑色数据路径中。 增强技术包括边缘平滑，大型液滴重量笔的位剥离和基于液滴重量的油墨消耗。 实施例提供了将600x600dpi输入分辨率数据转换为1200×600dpi输出分辨率图像数据或300×300至600×300dpi分辨率（即，沿相互垂直轴的不对称2:1比例分辨率转换）的算法，包括文本边缘平滑，同时使灰度变化最小 图像中的缩放（半色调）数据。 这些技术也可以应用于其他决议。 一些实施例包括保持1200dpi边缘的单向位条，同时从1200dpi分辨率输出图像数据仅以600dpi应用输出像素。 一些实施方案包括以重量为基础的耗尽，以将平均墨水通量调整至32ng / {部分（1/600英寸的电池，从而防止在高输出分辨率下的多余的墨水施加，例如1200×600dpi）。在各种实施方案中， 硬件模块和/或协同地执行为集成过程以满足系统吞吐量要求。
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公开(公告)号：US5369645A
公开(公告)日：1994-11-29
申请号：US724645
申请日：1991-07-02
IPC分类号： G01R31/28 , G01R31/317 , G01R31/3185 , H01L21/66 , H01L21/822 , H01L27/04 , H04B17/00
CPC分类号： G01R31/3185 , G01R31/31713 , G01R31/31715
摘要： Digital integrated circuit testable input/output pad logic includes modified output driver logic and a latch for storing a test bit provided externally at the I/O pad terminal. The output driver logic selects either the normal pad output signal (O) for output during normal operation, or the stored test bit (S) or its complement (S') for output during a test operation. The output driver logic and latch are controlled by control logic signals (DP,SP,NDN,LS,NLS,NSN) derived from common tri-state (NTR) and latch (NTM) test signals provided externally at dedicated test pins (NTR,NTM). The control logic signals are provided over a bus to all similar testable I/O pads for testing all testable I/O pads within the IC under control of the two test signals.
摘要翻译： 数字集成电路可测试输入/输出焊盘逻辑包括修改的输出驱动器逻辑和用于存储在I / O焊盘端子外部提供的测试位的锁存器。 输出驱动器逻辑在正常操作期间选择正常焊盘输出信号（O）以输出，或者在测试操作期间输出存储的测试位（S）或其补码（S'）。 输出驱动器逻辑和锁存器由来自在专用测试引脚（NTR，NTR）外部提供的公共三态（NTR）和锁存（NTM）测试信号导出的控制逻辑信号（DP，SP，NDN，LS，NLS，NSN） NTM）。 控制逻辑信号通过总线提供给所有类似的可测试I / O焊盘，用于在两个测试信号的控制下测试IC内的所有可测试的I / O焊盘。
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公开(公告)号：US5012257A
公开(公告)日：1991-04-30
申请号：US495011
申请日：1990-03-16
申请人： David J. Lowe , Thomas B. Pritchard
发明人： David J. Lowe , Thomas B. Pritchard
CPC分类号： H04N1/52 , B41J2/2132
摘要： In a color ink jet printing system, an image superpixel (84, 86, 88) consists of a 2 by 2 array of cells (1-4), each cell corresponding to a pixel area on the substrate (80). Each pixel (55) of graphics data is processed to form a 2 by 2 array of bit image data (40), for printing a corresponding superpixel image (68). A superpixel configuration (86), indicating cell location and color of drops of ink for forming a superpixel image, is defined for each desired image color. Superpixel configurations control printing so that drops of ink (Y,M,C) are deposited only an a diagonally adjacent pair of cells (1,4), with no more than two drops of ink per cell, and no more than three drops of ink per superpixel. This superpixel strategy provides for printed images (62,64) perceivable as having the desired image color and having good color saturation, while minimizing bleed across color field boundaries (66).
摘要翻译： 在彩色喷墨打印系统中，图像超像素（84,86,88）由2×2的单元阵列（1-4）组成，每个单元对应于基板（80）上的像素区域。 图形数据的每个像素（55）被处理以形成2×2的位图数据阵列（40），用于打印对应的超像素图像（68）。 为每个期望的图像颜色定义指示单元格位置和用于形成超像素图像的墨的墨滴的颜色的超像素配置（86）。 超像素配置控制打印，使得墨滴（Y，M，C）仅沉积在对角相邻的一对单元（1,4）上，每个单元不超过两滴墨水，并且不超过三滴 每个超级像素的墨水。 该超像素策略提供可感知为具有所需图像颜色并且具有良好色彩饱和度的打印图像（62,64），同时最小化穿过色域边界（66）的渗色。
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公开(公告)号：US06853468B2
公开(公告)日：2005-02-08
申请号：US10615349
申请日：2003-07-08
CPC分类号： H04N1/6016
摘要： A technique is described to greatly reduce or avoid the quantization errors that occur when mapping a relatively linear RGB color space into a greatly non-linear printer CMY color space of equal precision, avoiding the contouring or banding that occurs when printing color gradients in a non-linear printing system. The technique performs a dither-like process on the original RGB continuous tone data. The RGB values are dithered to create a range of values that, when mapped to the non-linear printer continuous tone CMY values, creates a range of CMY values that, on average, represent the correct average tone of the input RGB values. The generated CMY continuous tone values are then halftoned and printed.
摘要翻译： 描述了一种技术，以大大减少或避免将相对线性的RGB颜色空间映射到相当精度的非常非线性的打印机CMY颜色空间中时发生的量化误差，避免了当在非打印机中打印色彩渐变时发生的轮廓或条带 线性打印系统。 该技术对原始RGB连续色调数据执行类似抖动的处理。 RGB值被抖动以创建一定范围的值，当映射到非线性打印机连续色调CMY值时，创建平均来说表示输入RGB值的正确平均色调的CMY值的范围。 然后将生成的CMY连续色调值半色调并打印。
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公开(公告)号：US06650793B1
公开(公告)日：2003-11-18
申请号：US09541798
申请日：2000-03-31
申请人： Mark D. Lund , Thomas B. Pritchard
发明人： Mark D. Lund , Thomas B. Pritchard
IPC分类号： G06K932
CPC分类号： H04N1/40068 , G06K15/02 , G06K15/18 , G06K15/1822 , G06T3/403
摘要： Multiple algorithms are applied to expand input image data of a variety of lower resolutions to output image data of a variety of higher resolutions with enhanced text quality, particularly in the black datapath controlling an output device such as an inkjet or laser printer. Enhancement techniques include edge smoothing, bit stripping for large drop weight pens, and drop-weight based ink depletion. Embodiments provide algorithms that convert 600×600 dpi input resolution data to 1200×600 dpi output resolution image data or 300×300 to 600×300 dpi resolution (i.e., asymmetric 2:1 ratio resolution conversion along mutually perpendicular axes), including text edge smoothing, while causing minimal change to gray scaled (halftoned) data within images. The invention applies to other resolutions as well. Some embodiments include unidirectional bitstripping that preserves 1200 dpi edges while applying output pixels at only 600 dpi from 1200 dpi resolution output image data. Some embodiments include drop-weight based depletion to adjust the average ink flux to 32 ng per {fraction (1/600)}th inch cell, thereby preventing excess ink application at high output resolutions, e.g., 1200×600 dpi. In various embodiments, operations are performed in hardware modules and/or performed cooperatively as an integrated process to meet system throughput requirements.
摘要翻译： 应用多种算法来扩展各种较低分辨率的输入图像数据，以输出具有增强文本质量的各种较高分辨率的图像数据，特别是在控制诸如喷墨或激光打印机的输出设备的黑色数据路径中。 增强技术包括边缘平滑，大型液滴重量笔的位剥离和基于液滴重量的油墨消耗。 实施例提供了将600x600dpi输入分辨率数据转换为1200×600dpi输出分辨率图像数据或300×300至600×300dpi分辨率（即，沿相互垂直轴的不对称2:1比例分辨率转换）的算法，包括文本边缘平滑，同时使灰度变化最小 图像中的缩放（半色调）数据。 本发明也适用于其他决议。 一些实施例包括保持1200dpi边缘的单向位条，同时从1200dpi分辨率输出图像数据仅以600dpi应用输出像素。 一些实施方案包括以重量为基础的耗尽，以将平均墨水通量调整至32ng / {部分（1/600英寸的电池，从而防止在高输出分辨率下的多余的墨水施加，例如1200×600dpi）。在各种实施方案中， 硬件模块和/或协同地执行为集成过程以满足系统吞吐量要求。
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公开(公告)号：US5732151A
公开(公告)日：1998-03-24
申请号：US891248
申请日：1997-07-10
CPC分类号： H04N1/52 , H04N1/6019
摘要： A method adapted for implementation in a computer system for correcting and half toning color data in a list of colors is provided. Starting with the first color in the list, color corrections are performed. Using traditional half toning methods, descriptions of the resulting printable dots for each position in the halftone matrix for that color are determined. Color corrections and half toning are repeated for each of the colors in the list. A lookup table is compiled. As each pixel of the image from which the list of colors was compiled is encountered, the printable dots are determined by reference to the lookup table.
摘要翻译： 提供了一种适用于在计算机系统中实现用于校正和调色列表中的颜色数据的方法。 从列表中的第一个颜色开始，执行颜色校正。 使用传统的半色调方法，确定针对该颜色的半色调矩阵中的每个位置的所得可印刷点的描述。 对于列表中的每种颜色重复颜色校正和半色调。 编译查找表。 当遇到编辑颜色列表的图像的每个像素时，通过参考查找表来确定可打印点。
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8.发明授权Method and apparatus for transferring data between a printer and a replaceable printing component 失效用于在打印机和可更换打印部件之间传送数据的方法和装置公开(公告)号：US06267463B1
公开(公告)日：2001-07-31
申请号：US09076601
申请日：1998-05-11
IPC分类号： B41J29393
CPC分类号： B41J2/17546
摘要： The present disclosure relates to a replaceable printing component for an ink-jet printing system having at least one replaceable printing component. The replaceable printing component includes an electrical storage device responsive to printing system control signals for transferring information between the printing component and the ink-jet printing system. The electrical storage device includes a storage portion containing a plurality of data fields associated with the replaceable printing component. Included in the electrical storage device is a plurality data values stored in each of the plurality of data fields. Also included is a control portion responsive to control signals for selectively transferring a block of data values having a preselected size between the ink-jet printer and the storage portion. The plurality of data fields are sized and arranged in the storage portion to ensure each of the plurality of data fields is transferred in a single data transfer between the ink-jet printer and the storage portion.
摘要翻译： 本公开涉及一种用于喷墨打印系统的可替换打印部件，其具有至少一个可更换打印部件。 可替换的打印部件包括响应于打印系统控制信号的电存储装置，用于在打印部件和喷墨打印系统之间传送信息。 电气存储装置包括包含与可更换打印部件相关联的多个数据字段的存储部分。 包括在电存储装置中的是存储在多个数据字段中的每一个中的多个数据值。 还包括响应于控制信号的控制部分，用于选择性地传送在喷墨打印机和存储部分之间具有预选尺寸的数据值块。 多个数据字段的尺寸和布置在存储部分中，以确保在喷墨打印机和存储部分之间的单个数据传送中传送多个数据字段中的每一个。
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公开(公告)号：US5706414A
公开(公告)日：1998-01-06
申请号：US728419
申请日：1996-10-10
申请人： Thomas B. Pritchard
发明人： Thomas B. Pritchard
CPC分类号： G06K15/102 , G06K15/02 , G06K15/10
摘要： A method for reducing the volume of ink applied to high-density print regions by depleting certain pixels in these regions avoids problems associated with excessive ink, improves economy, and yet retains print quality. Pixels located along the edges of high-density regions are identified and not depleted, thus preserving the sharp image demarcations characteristic of high quality printing. An upper bound for the percentage of depleted pixels may be chosen. A two-dimensional depletion table having certain entries designated as potential depletion candidates is tiled across a pixel image to be depleted. The designated entries are spaced apart within the table. If a pixel in the image is a candidate to be depleted according to the depletion table and if it is not an edge pixel, then it is depleted.
摘要翻译： 通过消耗这些区域中的某些像素来减少施加到高密度打印区域的油墨的量的方法避免了与过量油墨相关的问题，改善了经济性，并且仍然保持了打印质量。 沿着高密度区域的边缘定位的像素被识别并且不被耗尽，从而保持了高质量打印特征的清晰图像分界。 可以选择耗尽像素的百分比的上限。 具有指定为潜在耗尽候选的某些条目的二维耗尽表平铺在要耗尽的像素图像上。 指定的条目在表格中间隔开。 如果图像中的像素是根据耗尽表被耗尽的候选者，并且如果它不是边缘像素，则它被耗尽。
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10.发明授权Method and apparatus for compression and decompression of data used by a serial printer 失效用于串行打印机使用的数据的压缩和解压缩的方法和装置
公开(公告)号：US5596423A
公开(公告)日：1997-01-21
申请号：US399243
申请日：1995-03-02
申请人： Thomas B. Pritchard
发明人： Thomas B. Pritchard
CPC分类号： G06K15/10 , G06K2215/0077
摘要： A data compression and decompression procedure for a serial printer handles data from a print swath that includes Y rows of pixel data. The procedure divides the print swath into N microbands of pixel data, with each microband including y rows of pixel data (where y.times.N.gtoreq.Y). The procedure compresses each microband of the pixel data by breaking up the microband into microblocks and comparing data in each microblock with a seed value to arrive at a compressed microblock based upon data differences from the seed value. Each microblock comprises a block of pixel data that is m bits wide by y rows high, where m is a small fraction of M bits of pixel data that are printable by the printhead across a sheet. All microbands of a swath are subjected to the data compression procedure so as to create positionally corresponding sets of compressed data microblocks for all of the microbands. In preparation for printing, the procedure decompresses all N microbands of raster data by acting on each set of compressed microblocks to recreate a set of N microbands of decompressed pixel data. The procedure then feeds the N microbands of decompressed raster data, in parallel, to the printhead.
摘要翻译： 串行打印机的数据压缩和解压缩过程处理来自包含Y行像素数据的打印条纹的数据。 该过程将打印条划分成N个像素数据的微带，每个微带包括y行像素数据（其中yxN> / = Y）。 该过程通过将微带分解成微块并将每个微块中的数据与种子值进行比较来压缩像素数据的每个微带，以基于与种子值的数据差异来到达压缩微块。 每个微块包括像素数据块，其宽度为y行高y行，其中m是像素数据的M位的一小部分，其可由打印头跨片材打印。 对条的所有微带进行数据压缩处理，以便为所有微带创建位置上对应的压缩数据微块集合。 在准备打印时，该过程通过作用于每组压缩微块来解压所有N个微带的光栅数据，以重建一组解压缩像素数据的N个微带。 然后，该过程将解压缩的栅格数据的N个微带并行地馈送到打印头。
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