Method for compressing digital documents with control of image quality and compression rate
    41.
    发明授权
    Method for compressing digital documents with control of image quality and compression rate 有权
    用图像质量和压缩率控制压缩数字文档的方法

    公开(公告)号:US06731814B2

    公开(公告)日:2004-05-04

    申请号:US09727824

    申请日:2000-12-04

    IPC分类号: G06K936

    CPC分类号: G06T9/00 H04N1/41

    摘要: A method and apparatus for compressing and decompressing electronic documents, with maximum intradocument independence, and maximum flexibility in optimization of compression modes. The method includes receiving documents containing unknown combinations of a plural data types, including combinations of scanned data, computer rendered data, compressed data and/or rendering tags; dividing the received image into strips of blocks determining from the image itself, which data types are present in each block; compressing data of each data type present in each block with a compression method optimized for its data type. Scanned data may be further segmented into plural scanned data types, where each data type is compressed in said compressing data step with a compression method optimized for said scanned image data type. If the received data type is compressed data, the process may include the additional functions of determining a compression ratio thereof, and accepting the compressed data for use as, or decompressing and recompressing the data, based on acceptability of said compression ration determination. An instruction set is generated that allows detailed decompression instruction data and image data to be combined with transmitted compressed data. A data structure is shown, which segregates data types and instruction data, and allows for block to block and strip to strip processing independence.

    摘要翻译: 用于压缩和解压缩电子文档的方法和装置,具有最大的文献内独立性,并且在压缩模式的优化中具有最大的灵活性。 该方法包括接收包含多种数据类型的未知组合的文档,包括扫描数据,计算机渲染数据,压缩数据和/或渲染标签的组合; 将接收的图像划分为从图像本身确定的块的块,每个块中存在哪些数据类型; 使用为其数据类型优化的压缩方法压缩每个块中存在的每种数据类型的数据。 扫描的数据可以进一步分割成多个扫描数据类型,其中每个数据类型在所述压缩数据步骤中被压缩,并以针对所述扫描图像数据类型优化的压缩方法进行压缩。 如果接收到的数据类型是压缩数据,则处理可以包括确定其压缩比的附加功能,并且基于所述压缩比率确定的可接受性,接受压缩数据以用作数据或解压缩和重新压缩数据。 生成指令集,其允许将详细的解压缩指令数据和图像数据与传送的压缩数据组合。 示出了数据结构,其分隔数据类型和指令数据,并允许块阻止和剥离以处理独立的处理。

    Apparatus for ionographic printing with a focused ion stream
    42.
    发明授权
    Apparatus for ionographic printing with a focused ion stream 失效
    用聚焦离子流进行离子印刷的装置

    公开(公告)号:US5450115A

    公开(公告)日:1995-09-12

    申请号:US331400

    申请日:1994-10-31

    IPC分类号: B41J2/415 G01D15/06

    CPC分类号: B41J2/415

    摘要: An ionographic printer directs a stream of ions from a source to a charge receptor to create an electrostatic latent image thereon. The ion stream passes through a relatively large aperture having associated therewith a pinch electrode for narrowing the ion stream to a preselected width, and displacing electrodes for positioning the narrowed ion stream within the aperture. Varying the biases of the displacing electrodes causes the ion stream to scan across the aperture to deposit multiple spots of charged areas at desired locations on the receptor. The electrodes can be designed to compensate for spot placement skew and anomalies in the cross-sectional shape of the displaced ion stream.

    摘要翻译: 离子印刷机将来自源的离子流引导到电荷受体以在其上产生静电潜像。 离子流通过相对较大的孔,其具有与其相关联的夹紧电极,用于将离子流变窄至预选宽度,以及置换电极以将狭窄的离子流定位在孔内。 改变置换电极的偏压导致离子流扫过孔径以在受体上的所需位置沉积带电区域的多个斑点。 电极可以设计成补偿位移离子流的横截面形状中的斑点位置偏移和异常。

    Printing system
    43.
    发明授权
    Printing system 失效
    印刷系统

    公开(公告)号:US4520455A

    公开(公告)日:1985-05-28

    申请号:US613484

    申请日:1984-05-24

    IPC分类号: G06K15/10 G06K15/12 G06F3/12

    摘要: In a digital printer, method and apparatus for formatting printer control signals. According to the invention, characters to be printed are stored in ASCII format in the memory of a microprocessor system. Successive characters are formatted into an on/off bit mapping where a bit signal corresponds to a blank region and a bit signal corresponds to a darkened region. Eight bit slices of the characters are formatted until an entire print width is completed and stored in an 8 bit.times.N buffer where N varies with the desired printer resolution. In the preferred embodiment two buffers are used so that while the contents of one buffer are used to control the printer the second buffer can be bit formatted under microprocessor control.

    摘要翻译: 在数字打印机中,用于格式化打印机控制信号的方法和装置。 根据本发明,要打印的字符以ASCII格式存储在微处理器系统的存储器中。 连续字符被格式化为开/关位映射,其中位信号对应于空白区域,位信号对应于较暗区域。 字符的八位片段被格式化,直到整个打印宽度完成并存储在8位x N缓冲区中,其中N随所需的打印机分辨率而变化。 在优选实施例中,使用两个缓冲器,使得当使用一个缓冲器的内容来控制打印机时,可以在微处理器控制下对第二缓冲器进行位格式化。

    Printing system
    44.
    发明授权
    Printing system 失效
    印刷系统

    公开(公告)号:US4476542A

    公开(公告)日:1984-10-09

    申请号:US376884

    申请日:1982-05-10

    摘要: In a digital printer, method and apparatus for formatting printer control signals. According to the invention, characters to be printed are stored in ASCII format in the memory of a microprocessor system. Successive characters are formatted into an on/off bit mapping where a bit signal corresponds to a blank region and a bit signal corresponds to a darkened region. Eight bit slices of the characters are formatted until an entire print width is completed and stored in an 8 bit.times.N buffer where N varies with the desired printer resolution. In the preferred embodiment two buffers are used so that while the contents of one buffer are used to control the printer the second buffer can be bit formatted under microprocessor control.

    摘要翻译: 在数字打印机中,用于格式化打印机控制信号的方法和装置。 根据本发明,要打印的字符以ASCII格式存储在微处理器系统的存储器中。 连续字符被格式化为开/关位映射,其中位信号对应于空白区域,位信号对应于较暗区域。 字符的八位片段被格式化,直到整个打印宽度完成并存储在8位x N缓冲区中,其中N随所需的打印机分辨率而变化。 在优选实施例中,使用两个缓冲器,使得当使用一个缓冲器的内容来控制打印机时,可以在微处理器控制下对第二缓冲器进行位格式化。

    Tone error control for image contour removal
    45.
    发明授权
    Tone error control for image contour removal 失效
    用于图像轮廓去除的色调误差控制

    公开(公告)号:US4196452A

    公开(公告)日:1980-04-01

    申请号:US965667

    申请日:1978-12-01

    IPC分类号: H04N1/405 H04N1/40

    CPC分类号: H04N1/4055

    摘要: A system for processing halftone image data in digital format. The image data is electronically screened to provide a binary output suitable for storage or printing, the image data being processed in discrete blocks or cells. The error between actual and printed average gray values of each image cell processed is determined and the electronic screen thresholds are modified in accordance with such error (if any) prior to processing the next image cell. At the beginning of the aforesaid process and at the beginning of the processing each line, an error is randomly chosen.

    摘要翻译: 用于以数字格式处理半色调图像数据的系统。 图像数据被电子屏蔽以提供适合于存储或打印的二进制输出,图像数据在离散块或单元中被处理。 确定处理的每个图像单元的实际和打印的平均灰度值之间的误差,并且在处理下一个图像单元之前根据这种错误(如果有的话)修改电子屏幕阈值。 在上述过程的开始和处理每一行的开始处,随机选择一个错误。

    Scanning apparatus
    47.
    发明授权
    Scanning apparatus 失效
    扫描仪

    公开(公告)号:US4149091A

    公开(公告)日:1979-04-10

    申请号:US793202

    申请日:1977-05-02

    IPC分类号: H04N1/10 H04N1/195 G06K7/10

    摘要: A line scanning apparatus employing a multiplicity of linear arrays, the linear extent of which is less than the length of the scan line. To permit an entire line to be covered, the arrays are offset from one another in the direction of scan with adjoining array ends overlapped. To correct for the misalignment and redundancy introduced, the image data from the arrays is buffered until a line is completed when readout, is initiated. During readout, cross over from one array to the next is effected within the overlapped areas and the redundant data discarded.

    摘要翻译: 一种采用多个线性阵列的线扫描装置,其线性范围小于扫描线的长度。 为了允许整个线被覆盖,阵列在扫描方向上彼此偏移,邻接的阵列端重叠。 为了纠正所引入的不对齐和冗余,来自阵列的图像数据被缓冲,直到在读出时线被完成。 在读出期间,在重叠区域内实现从一个阵列到下一个阵列的交叉,并且废弃冗余数据。

    Image path utilizing sub-sampled cross-channel image values
    48.
    发明授权
    Image path utilizing sub-sampled cross-channel image values 有权
    图像路径利用子采样跨通道图像值

    公开(公告)号:US08437036B2

    公开(公告)日:2013-05-07

    申请号:US12258871

    申请日:2008-10-27

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6033 H04N1/6019

    摘要: A technique for cross-channel correction in real time for digital color printing in which the full resolution value of a selected colorant is combined with low resolution versions of the remaining colorants to provide a basis for correcting the selected colorant based upon the data for the other colorants employed. The pixel values of sub-samples of the remaining colorants are derived from the cell in which the full resolution selected colorant is taken; and, the desired output value is selected from a look-up table established for the known printing process.

    摘要翻译: 一种用于数字彩色打印实时交叉通道校正的技术,其中所选着色剂的全分辨率值与剩余着色剂的低分辨率版本组合,以提供基于另一种数据的数据校正所选着色剂的基础 着色剂就业。 剩余着色剂的子样品的像素值从其中采用全分辨率选择的着色剂的单元导出; 并且从为已知打印处理建立的查找表中选择期望的输出值。

    Methods to control appearance of gloss levels for printed text and images
    49.
    发明授权
    Methods to control appearance of gloss levels for printed text and images 有权
    控制印刷文字和图像光泽度外观的方法

    公开(公告)号:US08417135B2

    公开(公告)日:2013-04-09

    申请号:US12464610

    申请日:2009-05-12

    IPC分类号: G03G15/20

    摘要: A method for adjusting gloss appearance of images using a printer, includes: receiving a gloss selection input; correlating the gloss selection to a toner density setpoint value; adjusting one or more actuator controls such that the printer is configured to print using the toner density setpoint value; and rendering an image on a substrate using the one or more adjusted actuator controls. A printer configured to adjust gloss appearance of images is also disclosed.

    摘要翻译: 一种使用打印机调整图像的光泽外观的方法,包括:接收光泽选择输入; 将光泽选择与调色剂浓度设定值相关联; 调整一个或多个致动器控制,使得所述打印机被配置为使用所述调色剂浓度设定值进行打印; 以及使用所述一个或多个调整的致动器控制在基板上渲染图像。 还公开了一种配置为调节图像的光泽外观的打印机。

    Data binding in multiple marking engine printing systems
    50.
    发明授权
    Data binding in multiple marking engine printing systems 有权
    多标记引擎打印系统中的数据绑定

    公开(公告)号:US08159713B2

    公开(公告)日:2012-04-17

    申请号:US11636901

    申请日:2006-12-11

    IPC分类号: G06K15/22

    CPC分类号: H04N1/603

    摘要: A printing system capable of binding a modified image data to an individual print engine in a multiple print engine system. The system includes an image processor such as a digital front end, a set of transformations, and a configuration of printers. The system can also include a scanner that scans a test image so that this image binding process can be repeated. Furthermore, the transformation binding can also take place in real time.

    摘要翻译: 一种能够将经修改的图像数据绑定到多重打印引擎系统中的单独打印引擎的打印系统。 该系统包括图像处理器,例如数字前端,一组转换和打印机的配置。 系统还可以包括扫描测试图像的扫描仪,以便可以重复该图像绑定过程。 此外,转换绑定也可以实时发生。