Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database
    1.
    发明授权
    Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database 有权
    用于使用来自LED颜色传感器的测量来确定光谱的参考数据库和方法,以及生成参考数据库的方法

    公开(公告)号:US07839498B2

    公开(公告)日:2010-11-23

    申请号:US11797062

    申请日:2007-04-30

    IPC分类号: G01J3/40 G02B25/04

    摘要: To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

    摘要翻译: 为了确定光谱,可以使用参考数据库将来自非完全光源的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 参考数据库被划分成多个簇,并且通过例如向量量化为每个簇确定适当的质心。 形成参考数据库的训练样本可以通过比较质心和所考虑的样本之间的欧氏距离,并将每个样本分配给具有最短欧几里德距离的质心的群集来分配给群集。 当所有训练样本都被分配后,结果存储为参考数据库。 当从传感器重建新测量的光谱时,测量测量下的实际颜色样本与每个聚类质心之间的欧氏距离。 然后使用仅对应于最短欧几里得距离的簇的训练样本重建光谱,从而提高速度和精度。

    METHOD FOR CONDITIONAL APPLICATION OF COLOR MEASUREMENT ERROR COMPENSATION IN SPECTRAL SENSORS
    2.
    发明申请
    METHOD FOR CONDITIONAL APPLICATION OF COLOR MEASUREMENT ERROR COMPENSATION IN SPECTRAL SENSORS 有权
    彩色测量误差补偿在光谱传感器中的条件应用方法

    公开(公告)号:US20090296091A1

    公开(公告)日:2009-12-03

    申请号:US12203520

    申请日:2008-09-03

    IPC分类号: G01J3/46

    摘要: Color measurements of color samples are estimated by a system and method wherein an area coverage of a color sample is computed, the color sample is printed, a color of the printed color sample, such as a set of reflectance values, is measured at a first temperature, and a color of the printed color sample is estimated at a second temperature lower than the first temperature, the estimation being based on the area coverage and a thermochromatic model which represents relationships between measured colors of printed color samples at the first and second temperatures.

    摘要翻译: 通过系统和方法估计颜色样本的颜色测量,其中计算颜色样本的面积覆盖率,打印颜色样本,打印色样的颜色,例如一组反射率值,在第一 温度和印刷色样的颜色在低于第一温度的第二温度下被估计,估计是基于区域覆盖率和表示在第一和第二温度下印刷的彩色样品的测量颜色之间的关系的热色模型 。

    Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database
    3.
    发明授权
    Reference database and method for determining spectra using measurements from an LED color sensor, and method of generating a reference database 有权
    用于使用来自LED颜色传感器的测量来确定光谱的参考数据库和方法,以及生成参考数据库的方法

    公开(公告)号:US07383261B2

    公开(公告)日:2008-06-03

    申请号:US10758096

    申请日:2004-01-16

    IPC分类号: G06F7/00

    摘要: To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

    摘要翻译: 为了确定光谱,可以使用参考数据库将来自非完全光源的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 参考数据库被划分成多个簇,并且通过例如向量量化为每个簇确定适当的质心。 形成参考数据库的训练样本可以通过比较质心和所考虑的样本之间的欧氏距离,并将每个样本分配给具有最短欧几里德距离的质心的群集来分配给群集。 当所有训练样本都被分配后,结果存储为参考数据库。 当从传感器重建新测量的光谱时,测量测量下的实际颜色样本与每个聚类质心之间的欧氏距离。 然后使用仅对应于最短欧几里得距离的簇的训练样本重建光谱,从而提高速度和精度。

    Server and terminal emulator for persistent connection to a legacy host system with direct OS/390 host interface
    4.
    发明授权
    Server and terminal emulator for persistent connection to a legacy host system with direct OS/390 host interface 有权
    连接到具有直接OS / 390主机接口的旧式主机系统的服务器和终端仿真器

    公开(公告)号:US06205416B1

    公开(公告)日:2001-03-20

    申请号:US09231452

    申请日:1999-01-14

    IPC分类号: G06F9455

    摘要: A computer network environment (10) allowing connection of a client system (36) to a legacy host system (18,19) using a server (26) is provided The computer network environment (10) includes a legacy host system (18,19) having TCP/IP connectivity. The legacy host system (18,19) is operable to support a terminal session for access to the legacy host system (18,19). The computer network environment (10) also includes a server (26) operable to communicate with the legacy host system (18,19) across a persistent TCP/IP socket connection (30). The computer network environment (10) further includes a client system (36) executing an applet process (42) under a web browser (38). The applet process (42) is operable to communicate with the client thread (28) across another persistent TCP/IP socket connection (44) and is operable to provide a terminal session to a user of the client system (36) This terminal session is supported by a persistent connection allowing real-time bidirectional communication with the legacy host system (18,19), including a direct interface to an OS/390 host.

    摘要翻译: 提供了允许使用服务器(26)将客户端系统(36)连接到传统主机系统(18,19)的计算机网络环境(10)。计算机网络环境(10)包括遗留主机系统(18,19 )具有TCP / IP连接。 遗留主机系统(18,19)可操作以支持用于访问传统主机系统(18,19)的终端会话。 计算机网络环境(10)还包括可操作以跨越持久TCP / IP套接字连接(30)与传统主机系统(18,19)进行通信的服务器(26)。 计算机网络环境(10)还包括在web浏览器(38)下执行小应用程序(42)的客户端系统(36)。 小应用程序(42)可操作以与另一个持久TCP / IP套接字连接(44)与客户端线程(28)通信,并且可操作以向客户端系统(36)的用户提供终端会话。该终端会话是 由持续连接支持,允许与传统主机系统(18,19)的实时双向通信,包括到OS / 390主机的直接接口。

    METHOD TO MINIMIZE INSTRUMENT DIFFERENCES IN COLOR MANAGEMENT FUNCTIONS
    6.
    发明申请
    METHOD TO MINIMIZE INSTRUMENT DIFFERENCES IN COLOR MANAGEMENT FUNCTIONS 有权
    在色彩管理功能中最小化仪器差异的方法

    公开(公告)号:US20090009766A1

    公开(公告)日:2009-01-08

    申请号:US12203454

    申请日:2008-09-03

    IPC分类号: G01J3/46 B41J29/393

    摘要: A method for estimating color measurements of color samples includes printing a color sample based on input data, measuring a color of the printed color sample with an in-line spectral sensor at a first temperature, and estimating a color of the printed color sample which would be output by a reference spectral sensor at a second temperature. The estimation is based on a thermochromatic model which represents relationships between measured colors of printed color samples on the in-line spectral sensor at the first temperature and the reference spectral sensor at the second temperature. The reference spectral sensor is a different type of sensor from the in-line spectral sensor, so the color response of the two spectral sensors is different, even when the measurement conditions are identical. Consequently, a set of printed spot color samples generate different measured colors at the second temperature on the in-line spectral sensor from the reference spectral sensor. The exemplary method allows these differences, as well as measurement temperature differences to be accounted for in the estimation.

    摘要翻译: 用于估计颜色样本的颜色测量的方法包括基于输入数据打印颜色样本,在第一温度下用在线光谱传感器测量所打印的颜色样本的颜色,以及估计打印的颜色样本的颜色, 由第二温度下的参考光谱传感器输出。 该估计基于热色模型,其表示在第一温度下的在线光谱传感器和在第二温度下的参考光谱传感器的印刷色样的测量颜色之间的关系。 参考光谱传感器是与在线光谱传感器不同类型的传感器,因此即使测量条件相同,两个光谱传感器的颜色响应也是不同的。 因此,一组印刷的专色样本在来自参考光谱传感器的在线光谱传感器的第二温度下产生不同的测量颜色。 该示例性方法允许在估计中考虑到这些差异以及测量温度差异。

    Diagnostic method for determining imager contribution to printing defects
    7.
    发明授权
    Diagnostic method for determining imager contribution to printing defects 有权
    确定成像器对印刷缺陷的贡献的诊断方法

    公开(公告)号:US08594518B2

    公开(公告)日:2013-11-26

    申请号:US13108287

    申请日:2011-05-16

    IPC分类号: G03G15/00

    摘要: A method and device detect printing defects on prints produced by an electrostatic printing device and, in response, place the electrostatic printing device into a diagnostic mode. While in the diagnostic mode, the method and device charge an image bearing surface of the electrostatic printing device to a uniform potential charge and disable all light emitting devices of the electrostatic printing device that could alter the uniform potential charge. Next, this method and device transfer marking material to the image bearing surface to create a test image and print at least one test patch by transferring the test image from the image bearing surface to a sheet of media. This method and device evaluate whether the test patch includes the printing defects and identify whether the light emitting devices of the electrostatic printing device are defective, based on whether the test patch includes printing defects.

    摘要翻译: 一种方法和装置检测由静电印刷装置产生的印刷品上的印刷缺陷,并且作为响应,将静电印刷装置置于诊断模式。 在诊断模式中,该方法和装置将静电印刷装置的图像承载表面充电至均匀的电荷,并且禁用静电印刷装置的所有可能改变均匀电荷的发光装置。 接下来,该方法和装置将标记材料转移到图像承载表面以产生测试图像,并通过将测试图像从图像承载表面转移到一张介质上来打印至少一个测试贴片。 该方法和装置基于测试补丁是否包括打印缺陷来评估测试补丁是否包括打印缺陷并且识别静电印刷装置的发光装置是否有缺陷。

    SYSTEM AND METHOD FOR GENERATING AND IMPLEMENTING INDIVIDUALIZED EDUCATIONAL PRACTICE WORKSHEETS
    8.
    发明申请
    SYSTEM AND METHOD FOR GENERATING AND IMPLEMENTING INDIVIDUALIZED EDUCATIONAL PRACTICE WORKSHEETS 审中-公开
    生成和实施个性化教育实践工作表的系统和方法

    公开(公告)号:US20120282587A1

    公开(公告)日:2012-11-08

    申请号:US13101620

    申请日:2011-05-05

    IPC分类号: G09B7/00

    CPC分类号: G09B19/00 G09B3/00 G09B7/00

    摘要: A method and system generates and administers an individualized student worksheet. A set of problems and a unique embedded data pattern are generated and printed on a worksheet substrate. A teacher may point a camera pen point at an area of the pattern to identify the substrate and a location on the substrate. Based on this information, the method and system may access a worksheet file to identify the problem whose physical position corresponds to the captured embedded data. The system may present the problem's solution to the teacher, who may then use the pen to mark the problem as correct or incorrect, and optionally annotate notes for the student, teacher or others. The camera pen may collect the teacher's marks and annotations and store them with the worksheet file for later retrieval.

    摘要翻译: 方法和系统生成并管理个性化的学生工作表。 生成一组问题和独特的嵌入式数据模式并打印在工作表基板上。 教师可以将相机笔尖指向图案的区域,以识别基底和基底上的位置。 基于该信息,方法和系统可以访问工作表文件以识别其物理位置对应于所捕获的嵌入数据的问题。 该系统可以向老师提出问题的解决方案,然后他们可以使用笔将问题标记为正确或不正确,并且可选地为学生,教师或其他人注释笔记。 相机笔可以收集教师的标记和注释,并将其与工作表文件一起存储以供以后检索。

    PROCESS DIRECTION STREAK SOURCE DIAGNOSIS IN PRINTERS
    9.
    发明申请
    PROCESS DIRECTION STREAK SOURCE DIAGNOSIS IN PRINTERS 有权
    打印机中的过程方向条纹源诊断

    公开(公告)号:US20120274997A1

    公开(公告)日:2012-11-01

    申请号:US13097631

    申请日:2011-04-29

    IPC分类号: H04N1/46

    CPC分类号: H04N1/6036 H04N1/6041

    摘要: Methods and systems print a multi-color test pattern using a printing device to create a printed test pattern when the printing device is producing a printing defect. The methods and systems scan the printed test pattern to produce a scanned image and decompose the scanned image into color blocks using the computerized device. The methods and systems create intensity profiles of the color blocks using the computerized device and compare at least two of the intensity profiles of different colors to determine whether the intensity profiles indicate correlated printing defects using the computerized device. The methods and systems indicate, through the computerized device, whether a potential defect within a common printing element of the printing device or is located within one or more of the color printing elements of the printing device, depending upon whether the intensity profiles have correlated printing defects.

    摘要翻译: 方法和系统使用打印设备打印多色测试图案,以在打印设备产生打印缺陷时创建打印的测试图案。 方法和系统扫描打印的测试图案以产生扫描图像,并使用计算机化设备将扫描图像分解成色块。 方法和系统使用计算机化设备创建颜色块的强度分布,并比较不同颜色的至少两个强度分布,以确定强度分布是否使用计算机化设备指示相关的打印缺陷。 所述方法和系统通过计算机化装置指示打印装置的公共打印元件内的潜在缺陷或位于打印装置的一个或多个彩色打印元件内,这取决于强度分布是否具有相关打印 缺陷

    Method for conditional application of color measurement error compensation in spectral sensors
    10.
    发明授权
    Method for conditional application of color measurement error compensation in spectral sensors 有权
    光谱传感器中色彩测量误差补偿的条件应用方法

    公开(公告)号:US07961322B2

    公开(公告)日:2011-06-14

    申请号:US12203520

    申请日:2008-09-03

    IPC分类号: G01J3/50

    摘要: Color measurements of color samples are estimated by a system and method wherein an area coverage of a color sample is computed, the color sample is printed, a color of the printed color sample, such as a set of reflectance values, is measured at a first temperature, and a color of the printed color sample is estimated at a second temperature lower than the first temperature, the estimation being based on the area coverage and a thermochromatic model which represents relationships between measured colors of printed color samples at the first and second temperatures.

    摘要翻译: 通过系统和方法估计颜色样本的颜色测量,其中计算颜色样本的面积覆盖率,打印颜色样本,打印色样的颜色,例如一组反射率值,在第一 温度和印刷色样的颜色在低于第一温度的第二温度下被估计,估计是基于区域覆盖率和表示在第一和第二温度下印刷的彩色样品的测量颜色之间的关系的热色模型 。