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1. 发明申请

WO2022150042A1 FEATURE EXTRACTIONS TO OPTIMIZE SCANNED IMAGES 审中-公开
公开(公告)号：WO2022150042A1
公开(公告)日：2022-07-14
申请号：PCT/US2021/012651
申请日：2021-01-08
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , PURDUE RESEARCH FOUNDATION
发明人： BAUER, Peter , HARRIS, Todd, J. , SHAW, Mark , ALLEBACH, Jan , MAO, Yafei , SUN, Yufang , LI, Lixia
IPC分类号： H04N1/60 , G06T7/90
摘要： In some examples, an imaging device can include a processing resource and a memory resource storing instructions to cause the processing resource to perform a feature extraction process to extract a gamut-based feature included in a plurality of pixels of a scanned image to determine whether the scanned image includes a particular marking, apply a classification model to the scanned image, and optimize the scanned image based on the classification of the scanned image.

2. 发明申请

WO2008039546A1 MEMORY SYSTEM AND METHOD FOR STORING AND CORRECTING DATA 审中-公开
标题翻译：用于存储和校正数据的存储系统和方法
公开(公告)号：WO2008039546A1
公开(公告)日：2008-04-03
申请号：PCT/US2007/021079
申请日：2007-09-27
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , SHAW, Mark , THAYER, Larry, J.
发明人： SHAW, Mark , THAYER, Larry, J.
IPC分类号： G06F11/10 , G11C29/00
CPC分类号： G06F11/1048 , G11C29/70
摘要： A data memory system (100) is provided which includes a plurality of first data storage devices (102), at least two second data storage devices (104), and a third data storage device (106). The plurality of first data storage devices (102) is configured to store first data. The second data storage devices (104) are configured to store error correction data. Also included in the system is a control circuit (108) configured to generate the error correction data using the first data, correct errors in the first data using the error correction data, and replace one of the plurality of first data storage devices (102) or one of the at least two second data storage devices (104) with the third data storage device (106).
摘要翻译：提供了一种数据存储系统（100），其包括多个第一数据存储设备（102），至少两个第二数据存储设备（104）和第三数据存储设备（106）。多个第一数据存储设备（102）被配置为存储第一数据。第二数据存储装置（104）被配置为存储纠错数据。还包括在系统中的控制电路（108）被配置为使用第一数据生成纠错数据，使用纠错数据校正第一数据中的错误，并且替换多个第一数据存储设备（102）中的一个，或者具有第三数据存储设备（106）的至少两个第二数据存储设备（104）中的一个。

3. 发明申请

WO2021150231A1 REGION OF INTEREST EXTRACTION FROM REFERENCE IMAGE USING OBJECT MAP 审中-公开
公开(公告)号：WO2021150231A1
公开(公告)日：2021-07-29
申请号：PCT/US2020/014849
申请日：2020-01-23
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： MAGGARD, Richard, E. , BANG, Yousun , CHO, Minki , SHAW, Mark , ALLEBACH, Jan , ZHANG, Runzhe
IPC分类号： G06K9/64 , G06F3/12
摘要： For each of a number of regions of interest (ROI) types, ROIs are extracted from a reference image based on an object map distinguishing symbol, raster, and vector objects within the reference image. Whether print quality of a printing device has degraded below a specified acceptable print quality level is assessed based on a comparison of the extracted ROIs within the reference image to corresponding ROIs within a test image corresponding to the reference image and printed by the printing device.

4. 发明申请

WO2020027827A1 COVERT MARKING 审中-公开
公开(公告)号：WO2020027827A1
公开(公告)日：2020-02-06
申请号：PCT/US2018/044816
申请日：2018-08-01
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： SHAW, Mark , LINE, Kenneth Scott , KANG, Kimin , LEE, Hae-Kee
IPC分类号： B41J2/00 , B41J2/52 , B42D25/41
摘要： Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form an image on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, designate a pixel of the received print job to form a covert dot pattern on the markings, where the pixel corresponds to a first laser intensity level; and adjust a laser intensity of the printing device to a second laser intensity level based on the first laser intensity level of the designated pixel to form the covert dot pattern.

5. 发明申请

WO2020027825A1 COVERT DOT PATTERNS 审中-公开
公开(公告)号：WO2020027825A1
公开(公告)日：2020-02-06
申请号：PCT/US2018/044777
申请日：2018-08-01
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： SHAW, Mark , LARSON, Bradley R.
IPC分类号： G06K9/80 , G06K15/02 , H04N1/60
摘要： Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form markings on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, render a page description language of the print job to form the markings, determine an object type image of the print job, designate pixels of the determined object type image to form a covert dot pattern on the image, and adjust colors of the designated pixels to form the covert dot pattern on the markings.

6. 发明申请

WO2018140002A1 DETERMINING MEDIA WEIGHT BASED ON INPUT VOLTAGE ESTIMATE 审中-公开
公开(公告)号：WO2018140002A1
公开(公告)日：2018-08-02
申请号：PCT/US2017/014900
申请日：2017-01-25
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： HIRST, Bartley Mark , SHAW, Mark
IPC分类号： G03G15/16 , G03G15/20
摘要： In one example in accordance with the present disclosure, a method for determining fusing energy per page based on an applied voltage is described. According to the method, a resistance of a fusing system is acquired and an input voltage of a fusing system is estimated. A duty ratio of the fusing system is measured and a fusing energy per processed page is then determined based on the input voltage, the fusing system resistance, and the duty ratio of the fusing system. A media weight is then determined based on the fusing energy per processed page.

7. 发明申请

WO2018140001A1 PRINT QUALITY DIAGNOSIS 审中-公开
公开(公告)号：WO2018140001A1
公开(公告)日：2018-08-02
申请号：PCT/US2017/014898
申请日：2017-01-25
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： XIAO, Zuguang , MAGGARD, Richard E. , REIBMAN, Amy , SHAW, Mark , ALLEBACH, Jan
IPC分类号： H04N1/409 , G06K9/44
摘要： In some examples, print quality diagnosis may include aligning corresponding characters between a scanned image of a printed physical medium aligned to a master image associated with generation of the printed physical medium to generate a common mask. Print quality diagnosis may further include determining, for each character of the scanned image, an average value associated with pixels within the common mask, and determining, for each corresponding character of the master image, the average value associated with pixels within the common mask. Further, print quality diagnosis may include determining, for each character of the common mask, a metric between the average values associated with the corresponding characters in the scanned and master images.

8. 发明申请

WO2017131618A1 INTERPOLATING PIXEL VALUES 审中-公开
标题翻译：插值像素值
公开(公告)号：WO2017131618A1
公开(公告)日：2017-08-03
申请号：PCT/US2016/014754
申请日：2016-01-25
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. , ROCHESTER INSTITUTE OF TECHNOLOGY
发明人： RANGNEKAR, Aneesh , BAUER, Peter , BRADBURN, Brent, M. , SHAW, Mark , SABER, Eli , MOUDGALYA, Sanketh
IPC分类号： G06T3/40 , H04N7/01 , G06T3/20
CPC分类号： G06T3/4015 , H04N1/484 , H04N7/0117 , H04N7/0135 , H04N9/045
摘要： In one implementation, a system for interpolating pixel values includes a receiver engine to receive a plurality of scan lines each captured using only two of three different colors of lights from a scanner, wherein each scan line comprises received pixel values for the two different colors of lights used to illuminate the plurality of scan lines, an interpolate engine to interpolate, using the received pixel values for the two different colors, pixel values for the third one of the three different colors by for each scan line to result in a color map, and a display engine to cause to display information relating to an image including the received pixel values and the interpolated pixel values for the three different colors for the plurality of scan lines.
摘要翻译：在一个实现中，用于内插像素值的系统包括接收器引擎，以接收多个扫描线，每个扫描线仅使用来自扫描器的三种不同颜色的光中的两种来捕获，其中每个扫描线包括接收的用于照亮多个扫描线的两种不同颜色的光的像素值，使用两种不同颜色的接收像素值对三种不同颜色中的第三种颜色的像素值进行内插的内插引擎，用于每次扫描以产生彩色图，以及显示引擎，用于显示关于包括接收的像素值和用于多个扫描线的三种不同颜色的内插像素值的图像的信息。

9. 发明申请

WO2017019087A1 EXPOSURE ADJUSTMENT FACTOR 审中-公开
标题翻译：暴露调整因素
公开(公告)号：WO2017019087A1
公开(公告)日：2017-02-02
申请号：PCT/US2015/042893
申请日：2015-07-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： HIRST, Mark , LARSON, Brad , SHAW, Mark
IPC分类号： G03G5/04 , G03G9/08
CPC分类号： G03G15/043 , G03G15/045
摘要： An electrophotographic imager includes a photoconductive element, a charger, and a light source to expose areas of a charged surface of the photoconductive element to form a latent image. A development element is coupled relative to the photoconductive element to develop, via charged marking agent, the latent image on the photoconductive element. An exposure adjustment factor is selectively applied, prior to the exposing, to a first printable area of the latent image.
摘要翻译：电子照相成像仪包括光导元件，充电器和光源，以暴露感光元件的带电表面的区域以形成潜像。显影元件相对于光导元件耦合，以通过带电标记剂显影光电导元件上的潜像。曝光调整因子在曝光之前被选择性地施加到潜像的第一可打印区域。

10. 发明申请

WO2021150230A1 GENERATION OF FEATURE VECTORS FOR ASSESSING PRINT QUALITY DEGRADATION 审中-公开
公开(公告)号：WO2021150230A1
公开(公告)日：2021-07-29
申请号：PCT/US2020/014846
申请日：2020-01-23
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： MAGGARD, Richard E. , BANG, Yousun , CHO, Minki , SHAW, Mark , ALLEBACH, Jan , ZHANG, Runzhe , YANG, Yi
IPC分类号： H04N1/60 , G01J3/46
摘要： For each region of interest (ROI) type of a number of ROI types, ROIs of the ROI type within a reference image are compared to corresponding ROIs within a test image corresponding to the reference image and printed by a printing device. For each ROI type, a feature vector characterizing image quality defects within the test image for the ROI type is generated based on results of the comparing for the ROI type. Whether print quality of the printing device has degraded below a specified acceptable print quality level can be assessed based on the feature vectors for the ROI types.

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