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    • 62. 发明申请
    • Printer using hybrid reflex writing to color register an image
    • 打印机使用混合反射写入颜色来注册图像
    • US20060024104A1
    • 2006-02-02
    • US10909075
    • 2004-07-30
    • Vittorio CastelliJoannes deJongLloyd WilliamsMatthew DondiegoWilliam Nowak
    • Vittorio CastelliJoannes deJongLloyd WilliamsMatthew DondiegoWilliam Nowak
    • G03G15/00
    • G03G15/0163G03G2215/0119G03G2215/0158G03G2215/0187
    • An imaging device for producing multicolor images from image data containing data representing an image of a first color and an image of a second color to be registered relative to the image of the first color onto a substrate by transferring toner of the first and second colors to the substrate is provided. The imaging device comprises a first imager, a second imager, a photoreceptor belt, a plurality of rollers mounted to a frame of the imaging device, an angular position sensor, an image data source and a controller. The plurality of rollers define a process path along which the photoreceptor belt is driven past the first and second imagers in a process direction. The plurality of rollers comprises a drive roller that exhibits an eccentricity for which a formula relating angular position as a function of the phase angle of the drive roller to eccentricity is known. The angular position sensor detects the phase angle of the drive roller. The image data source generates image data that includes a line to be printed in the first color and in the second color. The controller is coupled to receive signals from the angular position sensor, ROS imager and image data source and is configured to drive the second imager to generate an optical output. The controller includes memory and a processor. The memory stores the formula relating angular position as a function of the phase angle of the drive roller to eccentricity. The processor calculates an appropriate time delay for starting the generation of the optical output of the second imager for printing the line to be printed in the first color and in the second color based on the time of the starting of the optical output by the ROS imager to print to print that line, the signal received from the angular position sensor, and the formula relating angular position as a function of the phase angle of the drive roller to eccentricity.
    • 一种成像装置,用于通过将第一颜色和第二种颜色的调色剂转印到基底上,从包含表示第一颜色和第二颜色的第二颜色的图像的数据的图像数据生成多色图像, 提供基板。 成像装置包括第一成像器,第二成像器,感光带,安装到成像装置的框架的多个辊,角位置传感器,图像数据源和控制器。 多个辊限定了沿着处理方向驱动感光带穿过第一和第二成像器的处理路径。 多个辊包括驱动辊,该驱动辊具有偏心度,对于该偏心,将与驱动辊的相位角相关的角位置与偏心度相关联的公式是已知的。 角位置传感器检测驱动辊的相位角。 图像数据源产生包括要以第一颜色和第二颜色打印的行的图像数据。 控制器被耦合以从角位置传感器,ROS成像器和图像数据源接收信号,并且被配置为驱动第二成像器以产生光输出。 控制器包括存储器和处理器。 存储器存储关于角位置作为驱动辊的相位角与偏心度的函数的公式。 处理器基于ROS成像器的光输出开始时间计算用于开始生成第二成像器的光输出的适当时间延迟,用于以第一颜色和第二颜色打印要打印的行 打印以打印该线,从角位置传感器接收的信号,以及将作为驱动辊的相位角的函数的角位置与偏心相关的公式。
    • 66. 发明授权
    • Liquid ink development (LID) machine having a fluid film thickness control apparatus
    • 具有流体膜厚控制装置的液体油墨开发(LID)机器
    • US06434352B1
    • 2002-08-13
    • US09733721
    • 2000-12-11
    • Vittorio Castelli
    • Vittorio Castelli
    • G03G1510
    • G03G15/161G03G15/101G03G15/162
    • Apparatus is provided for controlling a thickness (h) of a film of development fluid within a development nip of a liquid ink development (LID) machine. The apparatus includes a first moveable member having a first velocity (V1) and a path of movement defining a radius of curvature (R) for forming a long development nip. It also includes a second moveable member mounted partially about the first moveable member for forming the long development nip, and having a second velocity (V2) as well as a tension (T). The apparatus further includes a mechanism for introducing into the long development nip liquid development fluid having a viscosity (&mgr;), and a programmed controller connected to the first moveable member and the second moveable member, for controlling the first velocity (V1), the second velocity (V2), and the tension (T) so that h=K1R{K2 &mgr;(V1+V2)]/T}⅔, where K1 and K2 are each a constant.
    • 提供了用于控制液体油墨显影(LID)机的显影间隙内的显影液膜的厚度(h)的装置。 该装置包括具有第一速度(V1)和限定用于形成长显影辊隙的曲率半径(R)的运动路径的第一可移动构件。 它还包括部分地围绕第一可移动构件安装的第二可移动构件,用于形成长显影压区,并具有第二速度(V2)以及张力(T)。 该设备还包括用于引入具有粘度(μ)的长显影夹持液体显影流体的机构,以及连接到第一可移动部件和第二可移动部件的编程控制器,用于控制第一速度(V1),第二速度 速度(V2)和张力(T),使得h = K1R {K2 mu(V1 + V2)] / T}⅔,其中K1和K2均为常数。
    • 69. 发明授权
    • Adaptive similarity searching in sequence databases
    • 序列数据库中的自适应相似性搜索
    • US5940825A
    • 1999-08-17
    • US726889
    • 1996-10-04
    • Vittorio CastelliChung-Sheng LiPhilip Shi-lung Yu
    • Vittorio CastelliChung-Sheng LiPhilip Shi-lung Yu
    • G01V1/28G06F17/30
    • G01V1/288Y10S707/99932Y10S707/99933Y10S707/99936Y10S707/99937
    • A computer system and method for performing similarity searches which is phase and scale insensitive and which allows similarity searches to be performed at a semantic level. Each sequence in a database is preferably segmented at multiple projections and/or resolution levels. The sequences may represent object having multi-dimensional features such as temporal and/or spatial-temporal data. Preferably, the segmenting logic starts with the finest resolution, and each sequence is parsed into a number of disjointed segments, wherein each segment has uniform features. The uniform features could be segments having a constant slope, or waveform segments representable by a single function. The segments may then be re-sampled into a fixed length vector with appropriate normalization. A label may also be assigned to each segment via conventional clustering/classification methods. The above steps are iterated at successive projections and/or resolution levels until each sequence in the database has been independently segmented and clustered. Thus, the labels are preferably extracted in a pseudo-hierarchical manner in which the label of the lowest resolution representation of the sequence is extracted first. The representation of each time series at various resolutions and/or projections captures different characteristics of the same time series (or 2D/3D objects). Recall that each segment represents a region having uniform features. The segmentation at each individual resolution and/or projection thus enables recognition or emphasis of different characteristics within segments having uniform features.
    • 一种用于执行相位和尺度不敏感并且允许在语义级别执行相似性搜索的相似性搜索的计算机系统和方法。 数据库中的每个序列优选地以多个投影和/或分辨率级别分段。 序列可以表示具有多维特征的对象,诸如时间和/或空间 - 时间数据。 优选地,分割逻辑以最好的分辨率开始,并且每个序列被解析成多个不相交的段,其中每个段具有均匀的特征。 均匀特征可以是具有恒定斜率的段或由单个函数表示的波形段。 然后可以将段重新采样到具有适当归一化的固定长度向量中。 也可以通过常规聚类/分类方法将标签分配给每个片段。 上述步骤在连续的投影和/或分辨率级别迭代,直到数据库中的每个序列已被独立地分段和聚类。 因此,优选地以伪分级方式提取标签,其中首先提取序列的最低分辨率表示的标签。 每个时间序列在各种分辨率和/或投影下的表示可以捕获相同时间序列(或2D / 3D对象)的不同特征。 回想一下,每个片段表示具有均匀特征的区域。 因此,在每个单独的分辨率和/或投影下的分割使得能够识别或强调具有统一特征的段内的不同特征。