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1. 发明申请

US20070139733A1 Methods and apparatuses for controlling print density 失效
标题翻译：用于控制打印浓度的方法和装置
公开(公告)号：US20070139733A1
公开(公告)日：2007-06-21
申请号：US11313018
申请日：2005-12-20
申请人： Howard Mizes , Robert Loce , Lalit Mestha , Peter Paul
发明人： Howard Mizes , Robert Loce , Lalit Mestha , Peter Paul
IPC分类号： H04N1/46
CPC分类号： H04N1/6033 , H04N1/4015 , H04N1/6041
摘要： Multiple input patches are received on an output media, which patches are characterized by print density representing a document processing system's response to different input grayscale values over a potential response space. Values associated with the print density of each input grayscale value are measured. Reference Engine Response Curves are determined from the measured print density values and input gray scale values. A variance data representative of a difference between each measured print density value and a respective reference Engine Response Curve is determined. The variance data is transformed into individual components. Based at least on one selected individual component, a set of calibration compensating Tone Reproduction Curves is determined. The determined calibration compensating Tone Reproduction Curves are applied to input grayscale values.
摘要翻译：在输出介质上接收多个输入补丁，这些补丁的特征在于打印密度，表示文档处理系统对潜在响应空间上的不同输入灰度值的响应。测量与每个输入灰度值的打印浓度相关联的值。参考引擎响应曲线由测量的打印浓度值和输入灰度值确定。确定表示每个测量的打印浓度值和各个参考引擎响应曲线之间的差异的方差数据。方差数据被转换为单个组件。至少基于一个所选择的单独组件，确定一组校准补偿音再现曲线。确定的校准补偿色调再现曲线被应用于输入灰度值。

2. 发明申请

US20070052991A1 Methods and systems for determining banding compensation parameters in printing systems 失效
标题翻译：确定打印系统中条带补偿参数的方法和系统
公开(公告)号：US20070052991A1
公开(公告)日：2007-03-08
申请号：US11222260
申请日：2005-09-08
申请人： Nancy Goodman , Robert Loce , William Nowak , Howard Mizes , Peter Paul , Beilei Xu , Wencheng Wu , Jack Lestrange
发明人： Nancy Goodman , Robert Loce , William Nowak , Howard Mizes , Peter Paul , Beilei Xu , Wencheng Wu , Jack Lestrange
IPC分类号： G06K15/00
CPC分类号： B41J29/393 , G03G15/5062 , G03G2215/00067
摘要： A test target is written in a non image zone at set time intervals. The test target is sensed. At least one of frequency, amplitude and phase of banding, which is inherent in a printing device, is determined based on the sensed test target. At least one banding compensation parameter based at least on one of the determined frequency, amplitude and phase of banding is determined. Characteristics of producing an image based on the determined banding compensation parameter are adjusted to compensate the banding inherent in the printing device.
摘要翻译：测试目标以设定的时间间隔写入非图像区域。感测测试目标。基于感测的测试目标来确定打印设备中固有的条带的频率，幅度和相位中的至少一个。确定至少一个带状补偿参数，至少基于所确定的条带的频率，振幅和相位之一。调整基于确定的条带补偿参数产生图像的特性，以补偿打印装置固有的条带。

3. 发明申请

US20060221341A1 Systems and methods for compensating for temperature induced spectral emission variations in LED based color parameter measuring devices 有权
标题翻译：用于补偿基于LED的颜色参数测量装置中的温度感应光谱发射变化的系统和方法
公开(公告)号：US20060221341A1
公开(公告)日：2006-10-05
申请号：US11092674
申请日：2005-03-30
申请人： Peter Paul , Lalit Mestha , Claude Fillion , R. Viturro
发明人： Peter Paul , Lalit Mestha , Claude Fillion , R. Viturro
IPC分类号： G01N21/25 , G01J3/50
CPC分类号： G01J3/50 , G01J3/501 , G01J3/524 , G01J2003/466 , G01N21/255
摘要： Systems and method provide compensation for temperature induced peak wavelength shift of LEDs is color parameter measuring systems that use a model to reconstruct target color parameter values from the reflectance values measured when the target is illuminated by LEDs. Several models may be constructed, with each model being trained at a unique temperature, resulting in a set of models that span the temperature range of interest. In real-time, the LED based color parameter measuring system measures the temperature and interpolates between the models to estimate the appropriate model to use at the temperature of interest. The estimated model is then used to perform the color parameter value estimation.
摘要翻译：系统和方法为温度引起的LED的峰值波长偏移提供补偿是使用模型从由LED照射目标时测量的反射率值重建目标颜色参数值的颜色参数测量系统。可以构建几个模型，每个模型在独特的温度下进行训练，得到一组跨越感兴趣的温度范围的模型。基于LED的颜色参数测量系统实时测量模型之间的温度和内插，以估计在感兴趣的温度下使用的适当模型。然后使用估计的模型来执行颜色参数值估计。

4. 发明申请

US20070046941A1 Spectrophotometer target distance variation compensation 有权
公开(公告)号：US20070046941A1
公开(公告)日：2007-03-01
申请号：US11210957
申请日：2005-08-24
申请人： Lalit Mestha , Tonya Love , Peter Paul , Claude Fillion
发明人： Lalit Mestha , Tonya Love , Peter Paul , Claude Fillion
IPC分类号： G01J3/46
CPC分类号： G01J3/50 , G01J3/02 , G01J3/0256 , G01J3/0278 , G01J3/501 , G01J3/524
摘要： Spectrophotometer color measurement with a target illumination system and a reflected illumination sensing system where the target surface is variably spaced from said spectrophotometer. Color correction calibration information corresponding to color measurements for known different spacings of a test target surface from the spectrophotometer are obtained and stored. In use, the spacing of the actual target surface from the spectrophotometer is measured to provide a target spacing information signal. That signal is automatically combined with the stored color correction calibration information for the corresponding distances to provide at least partial correction of color measurement errors of the spectrophotometer for variable spacing of the target surface relative to the spectrophotometer even with low cost fixed focus optics. The spectrophotometer output can be so corrected by changing the target illumination, such as by LED pulse width changes, and/or by corrective adjustment of the measured reflectances.

5. 发明申请

US20060114308A1 Systems and methods for sensing skew and bow of a raster optical scanner using a full width array detector 有权
标题翻译：用于使用全宽阵列检测器感测光栅光学扫描器的偏斜和弓形的系统和方法
公开(公告)号：US20060114308A1
公开(公告)日：2006-06-01
申请号：US10998986
申请日：2004-11-30
申请人： Howard Mizes , Peter Paul , Stanely Wallace , Michael Borton , Kenneth Ossman
发明人： Howard Mizes , Peter Paul , Stanely Wallace , Michael Borton , Kenneth Ossman
IPC分类号： G03G15/01
CPC分类号： G03G15/5041 , G03G2215/0158
摘要： System and methods are provided for detecting color separation misalignment in raster optical scanners. A dash minimum response curve is obtained from a plurality of minimal responses sensed from a plurality of dashes in a test pattern. The frequency of the dash minimum response curve a is used to detect skew or bow, depending on whether the frequency is a constant or a variable.
摘要翻译：提供了用于检测光栅光学扫描仪中的颜色分离不对准的系统和方法。从测试图案中的多个破折号中感测到的多个最小响应获得冲击最小响应曲线。破折号最小响应曲线a的频率用于检测偏斜或弓形，取决于频率是常数还是变量。

6. 发明申请

US20060114283A1 Systems and methods for reducing process direction registration errors of a printhead using a linear array sensor 有权
公开(公告)号：US20060114283A1
公开(公告)日：2006-06-01
申请号：US10998632
申请日：2004-11-30
申请人： Howard Mizes , Peter Paul , Stanley Wallace , Michael Borton , Kenneth Ossman
发明人： Howard Mizes , Peter Paul , Stanley Wallace , Michael Borton , Kenneth Ossman
IPC分类号： B41J29/393
CPC分类号： B41J2/155
摘要： Systems and methods are provided for detecting process direction registration errors in a printer. The errors are detected by analyzing a metric of a dash minimum response obtained from a test pattern. The test pattern contains dashes. At least one dash is shifted in the process direction in relation to another dash.

7. 发明申请

US20070051908A1 Systems and methods for improving calibration of a linear array sensor 有权
公开(公告)号：US20070051908A1
公开(公告)日：2007-03-08
申请号：US11593121
申请日：2006-11-06
申请人： Howard Mizes , Peter Paul , Michael Borton , Stanley Wallace
发明人： Howard Mizes , Peter Paul , Michael Borton , Stanley Wallace
IPC分类号： G01N21/86
CPC分类号： G01J1/08 , G01J1/0266
摘要： Systems and methods provide calibration for a linear array sensor. A test pattern having a plurality of lines is used. Comparison between expected and measured spacing between a pair of neighboring lines is used to determine sensor position displacement.

8. 发明申请

US20060071185A1 Systems and methods for improving calibration of a linear array sensor 有权
公开(公告)号：US20060071185A1
公开(公告)日：2006-04-06
申请号：US10953321
申请日：2004-09-30
申请人： Howard Mizes , Peter Paul , Michael Borton , Stanley Wallace
发明人： Howard Mizes , Peter Paul , Michael Borton , Stanley Wallace
IPC分类号： G01V8/00 , G01N21/86 , G01J1/42
CPC分类号： G01J1/08 , G01J1/0266
摘要： Systems and methods provide calibration for a linear array sensor. A test pattern having a plurality of lines is used. Comparison between expected and measured spacing between a pair of neighboring lines is used to determine sensor position displacement.

9. 发明申请

US20080062219A1 Systems and methods for reducing cross process direction registration errors of a printhead using a linear array sensor 有权
标题翻译：使用线性阵列传感器减少打印头的交叉过程方向配准误差的系统和方法
公开(公告)号：US20080062219A1
公开(公告)日：2008-03-13
申请号：US11976992
申请日：2007-10-30
申请人： Howard Mizes , Peter Paul , Stanley Wallace , Michael Borton , Kenneth Ossman
发明人： Howard Mizes , Peter Paul , Stanley Wallace , Michael Borton , Kenneth Ossman
IPC分类号： B41J29/393
CPC分类号： B41J2/2135 , B41J3/543 , B41J29/393
摘要： Systems and methods are provided for determining registration errors in the cross process direction of a printer. A first straight line is obtained by detecting line centers of a first plurality of dashes in a test pattern. A second straight line is obtained by detecting a line center positions of a second plurality of dashes in the test pattern. A difference between the off-set of the first straight line and the off-set of the second straight line is used in determining registration errors.
摘要翻译：提供了用于确定打印机的交叉处理方向上的注册错误的系统和方法。通过检测测试图案中的第一多个虚线的线中心来获得第一直线。通过检测测试图案中的第二多个虚线的线中心位置来获得第二直线。在确定登记误差时，使用第一直线的偏移与第二直线的偏移之间的差异。

10. 发明授权

US07492381B2 Compensation of MPA polygon once around with exposure modulation 失效
标题翻译：用曝光调制补偿MPA多边形
公开(公告)号：US07492381B2
公开(公告)日：2009-02-17
申请号：US11315978
申请日：2005-12-21
申请人： Howard Mizes , Peter Paul , Jack LeStrange , Nancy B. Goodman , R. Enrique Viturro
发明人： Howard Mizes , Peter Paul , Jack LeStrange , Nancy B. Goodman , R. Enrique Viturro
IPC分类号： B41J2/385 , B41J2/435 , G06F15/00
CPC分类号： G02B27/0031 , G02B26/127
摘要： Many xerographic machines have a motor polygon assembly (MPA), which is a rotating polygonal mirror. As the MPA rotates, it reflects a modulated light beam to produce scan lines on a photoreceptor. Inconsistencies in the MPA can cause inconsistencies in the scan lines, and therefore banding in a printed document. Misalignment, improper mounting, improper manufacture, or sources can cause the MPA inconsistencies. The banding is periodic, can be measured and can be compensated for. Although the modulated light beam can be modulated by many sources, further modulation using a compensation source can reduce banding.
摘要翻译：许多静电复印机具有马达多边形组件（MPA），它是旋转的多面镜。当MPA旋转时，其反射调制的光束以在感光体上产生扫描线。 MPA中的不一致可能导致扫描线不一致，因此打印文档中的条带。未对准，不正确的安装，不正确的制造或来源可能会导致MPA的不一致。条带是周期性的，可以测量并可以补偿。虽然调制光束可以被许多光源调制，但使用补偿源的进一步的调制可以减少条带。

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