公开(公告)号：US07480071B2

公开(公告)日：2009-01-20

申请号：US10413201

申请日：2003-04-14

申请人： James Ray Bailey ,  Joseph Yackzan

发明人： James Ray Bailey ,  Joseph Yackzan

IPC分类号： G06F15/00 ,  G06K1/00 ,  G03F3/08 ,  H04N1/409

CPC分类号： G06T3/4007

摘要： Lines of input image data are scaled in a first dimension, the one-dimensionally scaled lines are stored in a buffer memory until a sufficient number of lines have been stored to perform scaling equally in two dimensions, and the stored lines are then scaled in a second dimension to produce image data scaled two-dimensionally by a user-selected scaling percentage. A first image scaling method is used to scale the input image data if the user-selected scaling percentage exceeds a predetermined threshold value, such as 50 percent, and a second scaling method is used if the scaling percentage does not exceed the threshold value. The first method can be, for example, linear interpolation, and the second method can be, for example, averaging.

摘要翻译： 输入图像数据的行在第一维度上缩放，一维缩放的行被存储在缓冲存储器中，直到已经存储了足够数量的行以在两维中同等地执行缩放，然后将存储的行在 第二维以产生通过用户选择的缩放百分比二维缩放的图像数据。 如果用户选择的缩放百分比超过预定阈值（例如50％），则第一图像缩放方法用于缩放输入图像数据，并且如果缩放百分比不超过阈值，则使用第二缩放方法。 第一种方法可以是例如线性插值，第二种方法可以是例如平均化。

公开(公告)号：US20070157193A1

公开(公告)日：2007-07-05

申请号：US11325288

申请日：2006-01-04

申请人： Tommy Lowe ,  Ricky Robbins ,  Joseph Yackzan

发明人： Tommy Lowe ,  Ricky Robbins ,  Joseph Yackzan

IPC分类号： G06F9/44

CPC分类号： G06F8/65

摘要： An image forming device may be upgraded through scanning an encoded upgrade sheet. A controller and associated circuitry in the image forming device may extract upgrade data, including firmware data for the device, from the scanned upgrade sheet and write the data to a memory device. The upgrade sheets may include an image comprising a pattern of data blocks, with each block having a color shade representative of binary data. The upgrade sheets may be distributed to users in different manners, including mailing upgrade sheets, electronically mailing the image, or providing the image on a network accessible to the users. The upgrade sheets may include a preamble that triggers the upgrade procedure as well as header and footer information describing the upgrade data.

摘要翻译： 可以通过扫描编码的升级表来升级图像形成装置。 图像形成装置中的控制器和相关联的电路可以从扫描的升级表提取升级数据，包括设备的固件数据，并将数据写入存储器件。 升级表可以包括包括数据块的图案的图像，每个块具有代表二进制数据的色调。 升级表可以以不同的方式分发给用户，包括邮寄升级表，电子邮寄图像，或者在用户可访问的网络上提供图像。 升级表可以包括触发升级过程的前同步码以及描述升级数据的页头和页脚信息。

公开(公告)号：US20060114521A1

公开(公告)日：2006-06-01

申请号：US11001965

申请日：2004-12-01

申请人： James Bailey ,  James Bush ,  Joseph Yackzan

发明人： James Bailey ,  James Bush ,  Joseph Yackzan

IPC分类号： H04N1/04

CPC分类号： H04N1/40006 ,  H04N1/40056 ,  H04N1/484

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。

公开(公告)号：US20060001921A1

公开(公告)日：2006-01-05

申请号：US10883427

申请日：2004-06-30

申请人： James Bailey ,  Curt Breswick ,  David Crutchfield ,  Joseph Yackzan

发明人： James Bailey ,  Curt Breswick ,  David Crutchfield ,  Joseph Yackzan

IPC分类号： H04N1/46

CPC分类号： H04N1/401 ,  H04N5/361 ,  H04N5/3651

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。

公开(公告)号：US20070091383A1

公开(公告)日：2007-04-26

申请号：US11256828

申请日：2005-10-24

申请人： David Crutchfield ,  James Ward ,  Doyle White ,  Joseph Yackzan

发明人： David Crutchfield ,  James Ward ,  Doyle White ,  Joseph Yackzan

IPC分类号： H04N1/04

CPC分类号： H04N1/047 ,  H04N1/12 ,  H04N1/193 ,  H04N1/203 ,  H04N1/2032 ,  H04N2201/0471 ,  H04N2201/04737 ,  H04N2201/04739 ,  H04N2201/04748 ,  H04N2201/04786

摘要： A method and system for performing dual-sided scanning of an original document in a device having an automatic document feeder uses two application specific circuits (ASICs), each ASIC configured to control an associated scanning element. A first of the two ASICs receives position information about a motor associated with the automatic document feeder, or the document itself, and uses this position information to determine when to read a line of scan data from its associated scanning element. The first ASIC also uses the position information to create a scanning synchronization signal that is sent to the second ASIC. The second ASIC uses the scanning synchronization signal to determine when to read data from its associated scanning element.

摘要翻译： 用于在具有自动文件馈送装置的设备中执行原始文档的双面扫描的方法和系统使用两个专用电路（ASIC），每个ASIC被配置为控制相关联的扫描元件。 两个ASIC中的第一个接收关于与自动文档馈送器或文档本身相关联的电动机的位置信息，并且使用该位置信息来确定何时从其相关联的扫描元件读取扫描数据行。 第一ASIC还使用位置信息来创建发送到第二ASIC的扫描同步信号。 第二ASIC使用扫描同步信号来确定何时从其相关联的扫描元件读取数据。

公开(公告)号：US20060294308A1

公开(公告)日：2006-12-28

申请号：US11158596

申请日：2005-06-22

申请人： James Bailey ,  Zachary Fister ,  Joseph Yackzan

发明人： James Bailey ,  Zachary Fister ,  Joseph Yackzan

IPC分类号： G06F12/00

CPC分类号： G06F12/0893 ,  G06F12/0802 ,  G06F2212/601

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。

公开(公告)号：US20050226503A1

公开(公告)日：2005-10-13

申请号：US10819540

申请日：2004-04-07

申请人： James Bailey ,  John Bates ,  Joseph Yackzan

发明人： James Bailey ,  John Bates ,  Joseph Yackzan

IPC分类号： G06K9/34 ,  G06K9/46 ,  G06K9/48 ,  H04N1/38 ,  H04N1/40

CPC分类号： H04N1/40062 ,  G06K9/4647 ,  G06K2209/01 ,  H04N1/38

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。