-
1.发明授权System and method for compensating for drift in multiple printheads in an inkjet printer 有权用于补偿喷墨打印机中多个打印头中漂移的系统和方法公开(公告)号：US08851601B2
公开(公告)日：2014-10-07
申请号：US13368204
申请日：2012-02-07
IPC分类号： B41J29/38
CPC分类号： B41J2/17593 , B41J2/04505 , B41J2/04586 , B41J2/04588 , B41J2202/21 , H04N1/6036
摘要： A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.
摘要翻译： 已经开发了用于在成像装置中原位校准多个打印头的方法。 发射信号操作多个打印头以在图像接收部件上形成墨测试图案。 用于从由多个打印头中的一个打印头形成的图案的一部分图案从测试图案反射的光的反射率测量值和光密度测量结果用于调整点火信号，并使得打印头能够在围绕平均反射率的预定范围内打印 值和预定的光密度。
-
2.发明申请System And Method For Compensating For Drift In Multiple Printheads In An Inkjet Printer 有权用于补偿喷墨打印机中多个打印头漂移的系统和方法公开(公告)号：US20130201233A1
公开(公告)日：2013-08-08
申请号：US13368204
申请日：2012-02-07
IPC分类号： B41J29/38
CPC分类号： B41J2/17593 , B41J2/04505 , B41J2/04586 , B41J2/04588 , B41J2202/21 , H04N1/6036
摘要： A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.
摘要翻译： 已经开发了用于在成像装置中原位校准多个打印头的方法。 发射信号操作多个打印头以在图像接收部件上形成墨测试图案。 用于从由多个打印头中的一个打印头形成的图案的一部分图案从测试图案反射的光的反射率测量值和光密度测量结果用于调整点火信号，并使得打印头能够在围绕平均反射率的预定范围内打印 值和预定的光密度。
-
3.发明申请Method and System for Adjusting Printhead Voltage Parameters in an Inkjet Printer 有权用于调整喷墨打印机中打印头电压参数的方法和系统公开(公告)号：US20130113855A1
公开(公告)日：2013-05-09
申请号：US13291539
申请日：2011-11-08
IPC分类号： B41J29/38
CPC分类号： B41J2/0451 , B41J2/04581 , B41J2/155
摘要： A method of operating a printer enables the mass of the ink drops ejected by the printheads in the printer to maintained in an optimal range without measuring the drop mass being ejected by the inkjets in the printheads. After calibration of the printheads, the printheads are operated with electrical signals having different peak-to-peak voltages. The number of inoperable inkjets for each printhead is determined from image data of the ejected ink on the image receiving member and the number of inoperable inkjets for each printhead is compared to a predetermined threshold. The peak-to-peak voltage for the electrical signals used to operate a printhead is adjusted with reference to the number of inoperable inkjets and the predetermined threshold.
摘要翻译： 操作打印机的方法使得由打印机中的打印头喷射的墨滴的质量保持在最佳范围，而不测量由打印头中的喷墨打印头喷射的液滴质量。 在校准打印头之后，打印头以具有不同峰 - 峰值电压的电信号操作。 每个打印头的不可操作的喷墨打印头的数量由图像接收部件上喷射的墨水的图像数据确定，并将每个打印头的不可操作的喷墨数量与预定的阈值进行比较。 用于操作打印头的用于操作打印头的电信号的峰 - 峰电压参照不可操作的喷墨数量和预定阈值进行调节。
-
4.发明授权Method and system for adjusting printhead voltage parameters in an inkjet printer 有权用于调整喷墨打印机中的打印头电压参数的方法和系统公开(公告)号：US08662616B2
公开(公告)日：2014-03-04
申请号：US13291539
申请日：2011-11-08
IPC分类号： B41J29/38
CPC分类号： B41J2/0451 , B41J2/04581 , B41J2/155
摘要： A method of operating a printer enables the mass of the ink drops ejected by the printheads in the printer to maintained in an optimal range without measuring the drop mass being ejected by the inkjets in the printheads. After calibration of the printheads, the printheads are operated with electrical signals having different peak-to-peak voltages. The number of inoperable inkjets for each printhead is determined from image data of the ejected ink on the image receiving member and the number of inoperable inkjets for each printhead is compared to a predetermined threshold. The peak-to-peak voltage for the electrical signals used to operate a printhead is adjusted with reference to the number of inoperable inkjets and the predetermined threshold.
摘要翻译： 操作打印机的方法使得由打印机中的打印头喷射的墨滴的质量保持在最佳范围，而不测量由打印头中的喷墨打印头喷射的液滴质量。 在校准打印头之后，打印头以具有不同峰 - 峰值电压的电信号操作。 每个打印头的不可操作的喷墨打印头的数量由图像接收部件上喷射的墨水的图像数据确定，并将每个打印头的不可操作的喷墨数量与预定的阈值进行比较。 用于操作打印头的用于操作打印头的电信号的峰 - 峰电压参照不可操作的喷墨数量和预定阈值进行调节。
-
5.发明授权Test pattern effective for coarse registration of inkjet printheads and methods of analysis of image data corresponding to the test pattern in an inkjet printer 有权用于喷墨打印头的粗略配准的测试图案以及与喷墨打印机中的测试图案对应的图像数据的分析方法公开(公告)号：US08602518B2
公开(公告)日：2013-12-10
申请号：US12754730
申请日：2010-04-06
IPC分类号： B41J29/393
CPC分类号： B41J2/2142 , B41J2/2146
摘要： A test pattern printed by printheads in an inkjet printer enables image analysis of the test pattern that identifies positions of the printheads and the inkjets operating in the printheads. The test pattern includes a plurality of arrangements of dashes, each arrangement of dashes having a predetermined number of rows and a predetermined number of columns, each dash in a row of dashes in the arrangement of dashes being separated by a first predetermined distance and each dash in a column of dashes in the arrangement of dashes being separated by a second predetermined distance, each dash in a column of an arrangement of dashes being ejected by a single inkjet ejector in a printhead of the inkjet printer, and a plurality of unprinted areas interspersed between the plurality of arrangements of dashes.
摘要翻译： 由喷墨打印机中的打印头打印的测试图案使得能够对识别打印头和在打印头中操作的喷墨打印头的位置的测试图案进行图像分析。 测试图案包括多个虚线的布置，每个排列的虚线具有预定数量的行和预定数量的列，每一个以划线的排列划分为虚线的排列间隔第一预定距离，并且每个划线 在以划分第二预定距离的虚线排列的虚线栏中，由喷墨打印机的打印头中的单个喷墨喷射器排列的虚线排列中的每个划痕，并且散布着多个未打印区域 在多个布置的破折号之间。
-
公开(公告)号：US08456711B2
公开(公告)日：2013-06-04
申请号：US12609475
申请日：2009-10-30
申请人： Yeqing Zhang , Robert P. Loce
发明人： Yeqing Zhang , Robert P. Loce
CPC分类号： H04N1/4092 , G06T5/003 , G06T2207/20164 , G06T2207/20192
摘要： This closure provides image processing methods and apparatus for corner enhancing a digital image for rendering on an image output device. According to an exemplary method, the method determines whether or not image pixels are associated with a corner as a function of the USAN values generated for the image pixels. Subsequently, one or more pixels associated with a corner are modified to render a corner enhanced image.
摘要翻译： 该关闭提供用于转角增强用于在图像输出装置上呈现的数字图像的图像处理方法和装置。 根据示例性方法，该方法根据为图像像素生成的USAN值来确定图像像素是否与角关联。 随后，修改与角部相关联的一个或多个像素以呈现拐角增强图像。
-
公开(公告)号：US07636480B2
公开(公告)日：2009-12-22
申请号：US11149522
申请日：2005-06-10
申请人： Yeqing Zhang , Robert P. Loce
发明人： Yeqing Zhang , Robert P. Loce
CPC分类号： G06T9/008
摘要： A method for encoding high resolution data to a form having a reduced number of bits can include predefining a plurality of high-output-resolution output patterns, associating respective output-resolution output patterns of the plurality with respective encoded resolution bit patterns, receiving a block of input-resolution input data, determining a respective difference between a pattern of the received block of input data and the respective output-resolution output patterns, selecting a respective output-resolution output pattern associated with a lowest respective difference to be a representative output pattern for the received block of input data and encoding the received block of input-resolution input data as the respective encoded resolution bit pattern associated with the selected respective representative high-output-resolution output pattern. A system includes a library of output patterns in association with encoded resolution bit patterns, a block analyzer, a block selector and an encoder.
摘要翻译： 用于将高分辨率数据编码为具有减少的位数的形式的方法可以包括预定义多个高输出分辨率输出模式，将多个的相应输出分辨率输出模式与相应的编码分辨率位模式相关联，接收块 输入分辨率输入数据，确定所接收的输入数据块的模式与相应的输出分辨率输出模式之间的相应差异，选择与最低相应差值相关联的相应输出分辨率输出模式为代表性输出模式 对于所接收的输入数据块并将所接收的输入分辨率输入数据块编码为与所选择的各个代表性高输出分辨率输出模式相关联的相应编码分辨率位模式。 系统包括与编码的分辨率位模式相关联的输出模式库，块分析器，块选择器和编码器。
-
公开(公告)号：US07486416B2
公开(公告)日：2009-02-03
申请号：US11143818
申请日：2005-06-02
申请人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
发明人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
CPC分类号： H04N1/6038 , H04N1/6041
摘要： Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).
摘要翻译： 从空间依赖的着色剂外观不均匀性的其他方面鉴定和分离空间依赖性着色剂相互作用效应。 确定用于补偿所识别的空间依赖着色剂相互作用效应的去相关函数。 还可以确定用于补偿空间依赖着色剂外观不均匀性的其它方面的空间依赖性单色剂补偿功能。 图像数据通过去相关功能进行处理，从而产生对空间依赖的着色剂相互作用效应进行补偿的着色剂值。 可选地，还通过空间依赖的单一着色剂补偿功能来处理图像数据，由此产生着色剂值，其对着色剂外观不均匀性的两个方面进行补偿。 可以在不同的空间和时间频率或分辨率下确定，校准和/或存储两种补偿功能。 可以采用一种或两种补偿功能来保持多个渲染设备（例如，标记引擎）之间的一致性。
-
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。
-
10.发明授权Method and apparatus for digital image darkness control in saturated image structures 失效饱和图像结构中数字图像暗度控制的方法和装置公开(公告)号：US06606420B1
公开(公告)日：2003-08-12
申请号：US09425951
申请日：1999-10-25
IPC分类号： G06K940
CPC分类号： G06T5/008 , G06T5/30 , G06T7/13 , G06T7/136 , G06T2207/20012 , G06T2207/20192 , G06T2207/30176
摘要： A method and apparatus for the control of darkness/lightness in a digital image rendered by a printing system. An original image containing antialiased edges is initially thresholded and filtered to determine an edge map. With knowledge of the edge via the edge map, darkness adjustment is applies to the digital image. Gray-edge compaction is applied thereafter to adjust the position of the edge.
摘要翻译： 一种用于控制由打印系统呈现的数字图像中的黑暗度的方法和装置。 首先对含有抗锯齿边缘的原始图像进行阈值处理并过滤以确定边缘图。 通过边缘图的边缘知识，黑暗调整适用于数字图像。 此后施加灰边压实以调整边缘的位置。
-
-
-
-
-
-
-
-
-
搜索结果
53 条记录 (耗时 0.026 秒)
