利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.012 秒)

    Color balancing system and method using a high quantization resolution halftone array
    1.
    发明公开
    Color balancing system and method using a high quantization resolution halftone array 审中-公开
    系统与Verfahren zum Farbabgleich durch Halbtonrasteranordnung von hoherQuantisierungsauflösung

    公开(公告)号：EP1441504A2

    公开(公告)日：2004-07-28

    申请号：EP04000647.0

    申请日：2004-01-14

    申请人： Xerox Corporation

    发明人： Van de Capelle, Jean-Pierre R.N. ,  Mestha, Lalit K. ,  Loce, Robert P. ,  Bala, Raja ,  Maltz, Martin S. ,  Crean, Peter A.

    IPC分类号： H04N1/60

    CPC分类号： H04N1/4078 ,  H04N1/6033

    摘要： A system and method for printer control and color balance calibration. The system and method address the image quality problems of print engine instability, low quality of color balance and contouring from the calibration. The method includes defining combinations of colorants, such as inks or toners that will be used to print images, defining a desired response for the combinations that are to be used and, in real time, iteratively printing CMY halftone color patches, measuring the printed patches via an in situ sensor and iteratively performing color-balance calibration based on the measurements, accumulating corrections until the measurements are within a predetermined proximity of the desired response. The calibration is performed on the halftones while they are in a high quantization resolution form.

    摘要翻译： 一种用于打印机控制和色平衡校准的系统和方法。 该系统和方法解决了打印引擎不稳定的图像质量问题，色彩平衡质量差和校准轮廓。 该方法包括定义着色剂的组合，例如将用于打印图像的墨水或调色剂，为要使用的组合定义所需的响应，并实时迭代地打印CMY半色调色块，测量印刷的片 通过原位传感器和基于测量的迭代执行色平衡校准，累积校正直到测量值在所需响应的预定接近度内。 当半色调处于高量化分辨率形式时，进行校准。

    On-line calibration system for a dynamically varying color marking device
    2.
    发明公开
    On-line calibration system for a dynamically varying color marking device 有权
    的在线动态变化的颜色生成装置校准系统

    公开(公告)号：EP1152598A3

    公开(公告)日：2003-09-24

    申请号：EP01110775.2

    申请日：2001-05-03

    申请人： Xerox Corporation

    发明人： Mestha, Lingappa K. ,  Crean, Peter A. ,  Maltz, Martin S. ,  Rolleston, Robert J. ,  Wang, Yao Rong ,  Jackson, Eric ,  Balasubramanian, Raja

    IPC分类号： H04N1/60

    CPC分类号： G06F15/00 ,  H04N1/4078 ,  H04N1/6027 ,  H04N1/6033

    摘要： A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representative of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an output image in response to the control signal, a sensor for measuring a parameter from the output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a color balance controller for constructing an adjusted device TRC from the controlled points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.

    Pixel magnification/demagnification apparatus and method
    3.
    发明公开
    Pixel magnification/demagnification apparatus and method 失效
    Apparat und Verfahren zurVergrösserungoder Verkleinerung von Bildelementen。

    公开(公告)号：EP0035875A2

    公开(公告)日：1981-09-16

    申请号：EP81300918.0

    申请日：1981-03-05

    申请人： XEROX CORPORATION

    发明人： Crean, Peter A. ,  Agulnek, Martin A.

    IPC分类号： G03B27/32 ,  G03F1/00

    CPC分类号： G03G15/041 ,  G06T3/40 ,  H04N1/3935

    摘要： Pixel magnification/demagnification apparatus and method are disclosed for controlling the size of reproducible image, the image being represented by video image signals or pixels generated by a raster scanner (12). A binary rate multiplier (102) is used for image size control along the X-axis, the multiplier being programmed to the size image desired to vary the frequency of the pixel clock signals output by the multiplier. A control flip-flop (45) astride the image pixel stream is driven by the multiplier clock signals to speed up or reduce the rate at which image pixels are output with consequent change in image size along the X-axis.
    For image size control along the Y-axis, a phase lock loop (86) control with programmable frequency generator (82) is provided for the scanning carriage drive motor (39). The frequency output of the generator is settable to the image size desired, changes in image size along the Y-axis being achieved either by increasing or decreasing the rate at which the scanning carriage (32) is moved.

    摘要翻译： 公开了用于控制可再现图像的尺寸的像素放大/缩小装置和方法，该图像由视频图像信号或由光栅扫描器（12）生成的像素表示。 二进制比例乘法器（102）用于沿着X轴的图像尺寸控制，乘法器被编程到期望的尺寸图像以改变乘法器输出的像素时钟信号的频率。 跨越图像像素流的控制触发器（45）由乘法器时钟信号驱动以加速或降低图像像素输出的速率，随之沿着X轴的图像尺寸的变化。 对于沿着Y轴的图像尺寸控制，为扫描托架驱动马达（39）提供了具有可编程频率发生器（82）的锁相环（86）控制。 发电机的频率输出可设定为所需的图像尺寸，通过增加或减少扫描滑架（32）移动的速率来实现沿着Y轴的图像尺寸的变化。

    A method for compressing digital documents with control of image quality and compression rate
    5.
    发明公开
    A method for compressing digital documents with control of image quality and compression rate 有权
    一种用于与图像质量的控制和压缩率压缩数字文档方法

    公开(公告)号：EP1152595A1

    公开(公告)日：2001-11-07

    申请号：EP01303831.0

    申请日：2001-04-26

    申请人： Xerox Corporation

    发明人： Zeck, Norman W. ,  Crean, Peter A. ,  Kang, Sang-Chul ,  Rumph, David E: ,  Eldridge, George L. ,  Nelson, William E.

    IPC分类号： H04N1/411 ,  H04N1/41

    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 (120) the received image into strips of blocks determining from the image itself, which data types are present in each block; compressing (310-312) 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.

    On-line calibration system for a dynamically varying color marking device
    9.
    发明公开
    On-line calibration system for a dynamically varying color marking device 有权
    在线Kalibrierungssystemfüreine dynamischveränderlicheFarberzeugungsvorrichtung

    公开(公告)号：EP1152598A2

    公开(公告)日：2001-11-07

    申请号：EP01110775.2

    申请日：2001-05-03

    申请人： Xerox Corporation

    发明人： Mestha, Lingappa K. ,  Crean, Peter A. ,  Maltz, Martin S. ,  Rolleston, Robert J. ,  Wang, Yao Rong ,  Jackson, Eric ,  Balasubramanian, Raja

    IPC分类号： H04N1/60

    CPC分类号： G06F15/00 ,  H04N1/4078 ,  H04N1/6027 ,  H04N1/6033

    摘要： A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representative of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an output image in response to the control signal, a sensor for measuring a parameter from the output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a color balance controller for constructing an adjusted device TRC from the controlled points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.

    摘要翻译： 一种颜色标记装置，包括基于输出图像的动态色彩平衡控制来校准装置的控制系统。 该系统包括前端转换器，用于根据设备TRC将表示包括预选颜色的目标图像的输入信号转换为依赖于设备的控制信号，用于响应于控制信号输出输出图像的颜色标记装置 ，用于从表示输出图像的颜色的输出图像中测量参数的传感器，以及用于将参数与来自目标图像的对应参数进行比较并构建用于设备TRC的调整后的控制点的逐点控制器， 测量参数和相应的参数根据预选值变化，用于从受控点构建调整的设备TRC的色平衡控制器，由此随后生成的输出图像被调整的设备TRC输出，并且更精确地表示目标输入图像。

    Control subsystem in an image output terminal
    10.
    发明公开
    Control subsystem in an image output terminal 失效
    Steueruntersystem mit einem Bildausgabeterminal。

    公开(公告)号：EP0531012A2

    公开(公告)日：1993-03-10

    申请号：EP92307540.2

    申请日：1992-08-18

    申请人： XEROX CORPORATION

    发明人： Kovnat, Larry A. ,  Chiang, Joseph C. ,  Crean, Peter A. ,  Long, Karen M. ,  Hunter, Timothy M. ,  Kwiatkowski, David J. ,  Jump, Barry L. ,  Zanghi, John L. ,  Smith, Bradley W.

    IPC分类号： H04N1/32

    CPC分类号： H04N1/32486 ,  H04N1/00204 ,  H04N1/00915 ,  H04N1/0096 ,  H04N1/32443 ,  H04N1/32561 ,  H04N2201/0082 ,  H04N2201/0087

    摘要： An image output terminal (14) in a printer includes a control board providing an interface between an electronic subsystem (18) of the printer and a printing unit (28) of the image output terminal. An image disk (26) can be provided in the image output terminal (14) for receipt of image data from the electronic subsystem (18) prior to submission to the printing unit. The control board further provides an interface between the electronic subsystem (18) and the image disk (26) and between the image disk (26) and the printing unit (28) such that communication is decoupled between the electronic subsystem (18) and the printing unit (28) as data is printed while the transfer of data from the electronic subsystem (18) to the image disk (26) is allowed during printing. The control board controls all communication between the electronic subsystem (18) and the printing unit. The control board is able to detect fault conditions in the electronic subsystem, printing unit (28) and control board itself.

    摘要翻译： 打印机中的图像输出端子（14）包括控制板，其提供打印机的电子子系统（18）和图像输出端子的打印单元（28）之间的接口。 可以在图像输出端子（14）中提供图像盘（26），以在提交到打印单元之前从电子子系统（18）接收图像数据。 控制板还提供电子子系统（18）和图像盘（26）之间以及图像盘（26）和打印单元（28）之间的接口，使得通信在电子子系统（18）和 打印单元（28）作为数据被打印，同时在打印期间允许从电子子系统（18）到图像盘（26）的数据传送。 控制板控制电子子系统（18）和打印单元之间的所有通信。 控制板能够检测电子子系统，打印单元（28）和控制板本身的故障状况。