Method and apparatus for improving color registration in contact-image-sensor scanners
    1.
    发明申请
    Method and apparatus for improving color registration in contact-image-sensor scanners 审中-公开
    用于改善接触图像传感器扫描仪中颜色配准的方法和装置

    公开(公告)号:US20060114521A1

    公开(公告)日:2006-06-01

    申请号:US11001965

    申请日:2004-12-01

    IPC分类号: H04N1/04

    摘要: A method, and a document scanning apparatus employing the method, of scanning with a light source. The method comprises the acts of determining a calibration time of the light source and light sensor in a scanning unit, adjusting an activation time for the light source based on the calibration time, scaling a clock signal based on the activation time, and activating the light source based on the scaled clock signals. Where a red, green and blue LED light source is used, the longest of the activation times of the LEDs is used for the scaling of the clock signals. In another embodiment, the time between the start of the activation of last LED scan on a previous scan line and the start of activation of the first LED on the subsequent scan line is adjusted to maintain the predetermined resolution used for the scan.

    摘要翻译: 一种使用该方法的方法和文件扫描装置,用光源进行扫描。 该方法包括确定扫描单元中的光源和光传感器的校准时间的动作,基于校准时间调整光源的激活时间,基于激活时间缩放时钟信号,以及激活光 源基于缩放的时钟信号。 在使用红色,绿色和蓝色LED光源的地方,LED的最长激活时间用于缩放时钟信号。 在另一个实施例中,调整在先前扫描线上的最后LED扫描的开始激活与随后扫描线上的第一LED的启动开始之间的时间,以保持用于扫描的预定分辨率。

    System and method for high-performance scanner calibration
    2.
    发明申请
    System and method for high-performance scanner calibration 审中-公开
    用于高性能扫描仪校准的系统和方法

    公开(公告)号:US20060001921A1

    公开(公告)日:2006-01-05

    申请号:US10883427

    申请日:2004-06-30

    IPC分类号: H04N1/46

    摘要: The present invention is directed to a system and method for reducing the memory requirement for offset and gain calibration to relieve the size/performance bottleneck in scanner systems. The resulting methodology produces visually equivalent scanned results with a substantial increase in performance, which results in a shorter amount of time required to output a first copy in, for example, an all-in-one device. Since the calibration step is often the bottleneck in scanner performance, this method noticeably speeds up scan and copy time. Implementing the decompression in hardware requires a minimal amount of hardware overhead and complexity. Thus, this method has a minimal impact on the size and cost of the scanner controller (e.g., an ASIC—application specific integrated circuit). Since compression only takes place at most once per scan, this added step has no significant impact on the overall scan time. By allowing dynamic grouping of pixels using a single calibration packet, the quality of the compensation can be optimized with the size of the compensation data being minimized. Adding the ability to shift the compressed deviation stored in the calibration packet, the range of the pixel-to-pixel deviation can be increased without impacting the size of the calibration data. This flexibility makes this invention applicable to future image sensors that may have widely varying deviations in pixel-to-pixel offset and gain values.

    摘要翻译: 本发明涉及用于减少偏移和增益校准的存储器需求以减轻扫描器系统中的尺寸/性能瓶颈的系统和方法。 所得到的方法产生视觉上等效的扫描结果,性能显着增加,这导致在例如一体式设备中输出第一副本所需的更短的时间量。 由于校准步骤通常是扫描仪性能的瓶颈,因此该方法显着加快了扫描和复制时间。 在硬件中实现解压缩需要最少的硬件开销和复杂性。 因此,该方法对扫描仪控制器(例如,ASIC专用集成电路)的尺寸和成本具有最小的影响。 由于每次扫描最多只能进行一次压缩,因此添加的步骤对整个扫描时间没有显着影响。 通过允许使用单个校准分组对像素进行动态分组,可以使补偿数据的大小最小化来优化补偿的质量。 增加移动存储在校准包中的压缩偏差的能力,可以增加像素到像素偏差的范围而不影响校准数据的大小。 这种灵活性使得本发明适用于未来可能在像素到像素偏移和增益值中具有广泛变化的偏差的图像传感器。

    Reconfigurable cache controller utilizing multiple ASIC SRAMS
    3.
    发明申请
    Reconfigurable cache controller utilizing multiple ASIC SRAMS 有权
    使用多个ASIC SRAMS的可重构高速缓存控制器

    公开(公告)号:US20060294308A1

    公开(公告)日:2006-12-28

    申请号:US11158596

    申请日:2005-06-22

    IPC分类号: G06F12/00

    摘要: An application specific integrated circuit (ASIC) is configured to perform image processing tasks on a printer or other multi-function device. The ASIC includes a processor, a dedicated cache memory, a cache controller and additional Static Random Access Memory (SRAM) normally employed in image processing tasks. This additional SRAM may be dynamically allocated as a cache memory when not otherwise occupied.

    摘要翻译: 专用集成电路(ASIC)被配置为在打印机或其他多功能设备上执行图像处理任务。 ASIC包括处理器,专用高速缓冲存储器,高速缓存控制器和通常在图像处理任务中使用的附加静态随机存取存储器(SRAM)。 如果没有另外占用,这个额外的SRAM可以被动态分配为高速缓冲存储器。

    Scanned image content analysis
    4.
    发明申请
    Scanned image content analysis 审中-公开
    扫描图像内容分析

    公开(公告)号:US20050226503A1

    公开(公告)日:2005-10-13

    申请号:US10819540

    申请日:2004-04-07

    摘要: Scanned image content is analyzed by identifying and quantifying each of a number of pixel categories in sub-regions of a rectangular grid defined over the scanned-in image data. The counts or other quantities are compared with predetermined pixel distributions, and the sub-regions are characterized in response to the comparison. An image processing operation that depends upon the characterization can then be performed.

    摘要翻译: 通过识别和量化在扫描图像数据上定义的矩形网格的子区域中的多个像素类别中的每一个来分析扫描的图像内容。 将计数或其他量与预定像素分布进行比较,并且响应于比较来表征子区域。 然后可以执行依赖于表征的图像处理操作。

    Halftone edge enhancement for production by an image forming device
    6.
    发明申请
    Halftone edge enhancement for production by an image forming device 有权
    通过图像形成装置生产的半色调边缘增强

    公开(公告)号:US20070223044A1

    公开(公告)日:2007-09-27

    申请号:US11277190

    申请日:2006-03-22

    IPC分类号: G06K15/00

    摘要: Digital images that are produced by an image forming device may be processed using an edge enhancement technique to reduce the effects of halftone color depth reductions. For each element in the original image, certain detail elements are classified by examining the magnitude of pixel intensity gradients between elements of interest in a first window applied at each element and other elements in the first window. If a first predetermined condition is satisfied, those elements locations are stored. After halftoning, a morphological filter may be applied to the same element locations in the halftone image to enhance the halftone image.

    摘要翻译: 可以使用边缘增强技术来处理由图像形成装置产生的数字图像,以减少半色调颜色深度降低的影响。 对于原始图像中的每个元素,通过检查在每个元素应用的第一窗口中的感兴趣元素和第一窗口中的其他元素之间的像素强度梯度的大小来分类某些细节元素。 如果满足第一预定条件,则存储这些元素位置。 在半色调之后,可以将形态滤波器应用于半色调图像中的相同元件位置以增强半色调图像。

    Fluid couplings
    7.
    发明申请
    Fluid couplings 审中-公开
    流体联轴器

    公开(公告)号:US20070017582A1

    公开(公告)日:2007-01-25

    申请号:US11185480

    申请日:2005-07-20

    IPC分类号: F16L37/23

    摘要: Fluid couplings are provided for devices that include a flow path having two or more separable portions. Devices including such couplings are also provided, for example, a device including: first and second separable portions; a conduit, within the first portion, defining a flow path for fluid flow between the first portion and the second portion, the conduit having an open terminal end; a valve, within the first portion, including a deformable member configured to cover the terminal end thereby sealing the first portion when the first and second portions are separated; and a member, extending from the second portion, configured to cause the deformable member to deflect so as to expose the terminal end when the first and second portions are connected.

    摘要翻译: 为包括具有两个或多个可分离部分的流动路径的装置提供流体联轴器。 还提供了包括这种联接器的装置,例如,一种装置,包括:第一和第二可分离部分; 在第一部分内的导管限定用于在第一部分和第二部分之间的流体流动的流动路径,导管具有敞开的终端; 第一部分内的阀,包括构造成覆盖终端的可变形构件,从而当第一和第二部分分离时密封第一部分; 以及从第二部分延伸的构件,其构造成使得可变形构件偏转,以便当第一和第二部分连接时露出终端。

    Internal post flow control
    9.
    发明申请
    Internal post flow control 有权
    内部后流控制

    公开(公告)号:US20060086399A1

    公开(公告)日:2006-04-27

    申请号:US10970598

    申请日:2004-10-21

    申请人: James Bailey

    发明人: James Bailey

    IPC分类号: G05D7/01

    CPC分类号: G05D7/0106

    摘要: A flow control including an annular flexible member and an internal post disposed downstream of the flexible member is described. The annular flexible member has a deflectable inner edge that defines a passage channel and the annular flexible member and internal post define a control gap therebetween wherein the deflectable inner edge of the annular flexible member deflects axially under increasing fluid pressure to reduce the control gap and consequently control fluid flow.

    摘要翻译: 描述了包括环形柔性构件和设置在柔性构件下游的内部​​柱的流量控制。 环形柔性构件具有限定通道通道的可偏转的内边缘,并且环形柔性构件和内部柱在其间限定了一个控制间隙,其中环形柔性构件的可偏转内边缘在增加的流体压力下轴向偏转以减小控制间隙 控制流体流动。

    Fluted tip turbine blade
    10.
    发明申请
    Fluted tip turbine blade 有权
    槽形涡轮叶片

    公开(公告)号:US20060051209A1

    公开(公告)日:2006-03-09

    申请号:US10937642

    申请日:2004-09-09

    IPC分类号: F01D5/18

    摘要: A turbine blade includes an airfoil having pressure and suction sidewalls extending between leading and trailing edges and root and tip. The tip includes squealer ribs extending from a tip floor forming an open tip cavity. The rib along the pressure sidewall has a squared external corner, and a flute extends along the base of the rib at the tip floor.

    摘要翻译: 涡轮机叶片包括具有在前缘和后缘之间延伸的压力和吸力侧壁以及根部和尖端的翼型件。 尖端包括从形成开口尖端腔的尖端底部延伸的尖叫肋。 沿着压力侧壁的肋具有平方的外角,并且凹槽沿尖端底部的肋的基部延伸。