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1. 发明授权

US07667870B1 White region identification to accelerate image processing for copies 有权
标题翻译：白色区域识别加速图像处理的副本
公开(公告)号：US07667870B1
公开(公告)日：2010-02-23
申请号：US11032635
申请日：2005-01-10
申请人： Derek T. Walton
发明人： Derek T. Walton
IPC分类号： G06F15/00 , G06K1/00
CPC分类号： H04N1/40 , H04N1/40062
摘要： The present invention solves the problem set forth above by providing a method for accelerating the production of a standalone copy of a document by a peripheral device. The invention employs a white space map of the document to be copied. The map is generated by the ASIC chip and is used by the device to identify areas of the outputted copy that do not require ink or toner. This reduces the processing resources necessary to print the copy, thus speeding up copy production.
摘要翻译：本发明通过提供一种用于通过外围设备加速文件的独立副本的制作的方法来解决上述问题。本发明采用要复制的文档的空白地图。该映射由ASIC芯片生成，并被该设备用于识别不需要墨水或墨粉的输出副本的区域。这减少了打印副本所需的处理资源，从而加快了复印制作速度。

2. 发明申请

US20120033275A1 SYSTEMS AND METHODS FOR COLOR DEFRINGING 有权
标题翻译：用于颜色去除的系统和方法
公开(公告)号：US20120033275A1
公开(公告)日：2012-02-09
申请号：US12851343
申请日：2010-08-05
申请人： RAGNAR H. JONSSON , DEREK T. WALTON , TRAUSTI THORMUNDSSON
发明人： RAGNAR H. JONSSON , DEREK T. WALTON , TRAUSTI THORMUNDSSON
IPC分类号： H04N1/46
CPC分类号： H04N1/486
摘要： A system and method for defringing chromatic aberrations that occur in imaging devices such as scanners. The system comprises shift filters to shift lines in the various color planes together. In addition in each color plane, a spread filter is used to compensate for the unequal point spread functions of each color. Furthermore, the results can be enhanced by filtering in the luminance-chrominance space.
摘要翻译：一种用于降低诸如扫描仪的成像装置中出现的色差的系统和方法。该系统包括移位滤波器以将各种颜色平面中的线移动到一起。另外在每个颜色平面中，扩展滤波器用于补偿每种颜色的不等点扩散函数。此外，可以通过在亮度 - 色度空间中进行滤波来增强结果。

3. 发明授权

US07933045B2 Color conversion system and method 有权
标题翻译：颜色转换系统及方法
公开(公告)号：US07933045B2
公开(公告)日：2011-04-26
申请号：US12553749
申请日：2009-09-03
申请人： Derek T. Walton , John J. Koger
发明人： Derek T. Walton , John J. Koger
IPC分类号： G06F15/00
CPC分类号： H04N1/6025 , H04N1/40
摘要： A processor is provided that includes a primary memory and color conversion logic. The primary memory may store a first color look-up table (LUT) related to a second color space. The color conversion logic, in response to a received set of pixels having color values in a first color space, converts the received set of pixels to a second color space. The color conversion logic selectively accesses, based on a comparison of one or more pixel parameters to a threshold, one of the primary memory and a secondary memory located on a second device to obtain a color value of the second color space that is associated with each pixel of the set of pixels. The color conversion logic monitors the number of times that each of the primary memory and the secondary memory are accessed and automatically adjusts the threshold to maintain an access ratio.
摘要翻译：提供了包括主存储器和颜色转换逻辑的处理器。主存储器可以存储与第二颜色空间相关的第一颜色查找表（LUT）。颜色转换逻辑响应于在第一颜色空间中具有颜色值的所接收的像素组，将所接收的像素组转换为第二颜色空间。颜色转换逻辑基于一个或多个像素参数与阈值的比较来有选择地访问主存储器和位于第二设备上的辅助存储器中的一个，以获得与每个相关联的第二颜色空间的颜色值像素集合的像素。颜色转换逻辑监视每个主存储器和辅助存储器被访问的次数，并自动调整阈值以维持访问比率。

4. 发明授权

US07876977B2 Image processor and method of image rotation 有权
标题翻译：图像处理器和图像旋转方法
公开(公告)号：US07876977B2
公开(公告)日：2011-01-25
申请号：US11703068
申请日：2007-02-06
申请人： Derek T. Walton , Jim Duda
发明人： Derek T. Walton , Jim Duda
IPC分类号： G06K9/32
CPC分类号： G06T3/606
摘要： A method of rotating a digital image includes performing a first pass to process a selected image tile of a source image. The first pass includes copying a set of pixels of the selected image tile from a first memory to a processor memory, where the set of pixels comprises a portion of the selected image tile. The first pass further includes grouping the set of pixels into blocks of pixels and writing each of the blocks of pixels to a memory location. The method further includes repeating the first pass until each of the pixels of the selected image tile is processed, performing a second pass to process the blocks of pixels, and repeating the second pass until each of the blocks of pixels is processed. The second pass includes copying blocks of pixels, regrouping the blocks of pixels, and writing the regrouped pixels to a destination image location.
摘要翻译：旋转数字图像的方法包括执行第一遍以处理源图像的所选图像块。第一遍包括将所选择的图像块的一组像素从第一存储器复制到处理器存储器，其中像素组包括所选择的图像块的一部分。第一遍进一步包括将像素集合成像素块并且将每个像素块写入存储器位置。该方法还包括重复第一遍，直到处理所选择的图像块的每个像素，执行第二遍以处理像素块，并重复第二遍，直到每个像素块被处理。第二遍包括复制像素块，重新分组像素块，以及将重新分组的像素写入目的地图像位置。

5. 发明授权

US07759967B2 General purpose pin mapping for a general purpose application specific integrated circuit (ASIC) 有权
标题翻译：通用专用集成电路（ASIC）的通用引脚映射
公开(公告)号：US07759967B2
公开(公告)日：2010-07-20
申请号：US11031891
申请日：2005-01-07
申请人： Derek T. Walton , Carl M. Mikkelsen , Michael J. Schaffstein , Robert J. DeMattia
发明人： Derek T. Walton , Carl M. Mikkelsen , Michael J. Schaffstein , Robert J. DeMattia
IPC分类号： H03K19/173
CPC分类号： G06F1/22
摘要： Disclosed herein are various embodiments of an application specific integrated circuit (ASIC). The ASIC includes a plurality of functional units. Each functional unit may include a plurality of connections. The ASIC may also include a plurality of input and/or output pins configured to couple the ASIC to a circuit board. A programmable client may be associated with each pin, and each programmable client may be programmed to selectively connect the pin with which it is associated to one of the plurality of connections of one of the plurality of functional units. In various embodiments, the programmable client may be embodied as a multiplexer or a crossbar switch. Further, the programmable client may be programmed using any of boot firmware, hardware jumpers, and/or non-volatile programming registers.
摘要翻译：这里公开了专用集成电路（ASIC）的各种实施例。 ASIC包括多个功能单元。每个功能单元可以包括多个连接。 ASIC还可以包括被配置为将ASIC耦合到电路板的多个输入和/或输出引脚。可编程客户端可以与每个引脚相关联，并且每个可编程客户端可以被编程为选择性地将与其相关联的引脚连接到多个功能单元之一的多个连接中的一个。在各种实施例中，可编程客户端可被实现为多路复用器或交叉开关。此外，可编程客户机可以使用任何引导固件，硬件跳线和/或非易失性编程寄存器进行编程。

6. 发明申请

US20100128316A1 WHITE REGION IDENTIFICATION TO ACCELERATE IMAGE PROCESSING FOR COPIES 有权
标题翻译：白色区域识别，以加快图像处理复制
公开(公告)号：US20100128316A1
公开(公告)日：2010-05-27
申请号：US12696301
申请日：2010-01-29
申请人： Derek T. Walton
发明人： Derek T. Walton
IPC分类号： H04N1/405 , G06F15/00
CPC分类号： H04N1/40 , H04N1/40062
摘要： Provided herein is a method for accelerating the production of a standalone copy of a document by a peripheral device. The invention employs a white space map of the document to be copied. The map is generated by the ASIC chip, preferably at an early stage in the processing pipeline, and is used by the device to identify white areas of the outputted copy that do not require subsequent image processing calculations and do not require ink or toner markings on the paper. Use of the white space map allows the system to reduce the processing resources necessary to image process and subsequently physically print the copy, thus speeding up copy production.
摘要翻译：这里提供了一种用于通过外围设备加速文件的独立副本的制作的方法。本发明采用要复制的文档的空白地图。该地图由ASIC芯片产生，优选地在处理流水线的早期阶段，由该装置用于识别不需要后续图像处理计算的输出副本的白色区域，并且不需要墨水或墨粉标记论文。使用白色空间映射可以使系统减少图像处理所需的处理资源，并随后物理打印副本，从而加快复制生产速度。

7. 发明授权

US07453600B1 Text region identification and enhancement during color copy 有权
标题翻译：彩色复印期间的文本区域识别和增强
公开(公告)号：US07453600B1
公开(公告)日：2008-11-18
申请号：US11032615
申请日：2005-01-10
申请人： Derek T. Walton , Gyung Nam Boo
发明人： Derek T. Walton , Gyung Nam Boo
IPC分类号： H04N1/60 , H04N1/40
CPC分类号： H04N1/40062
摘要： There is provided a method for enhancing text reproduction by a color copier in a copy of a document that includes both text and graphic regions, the method includes creating an ink density map from a data image of the document identifying a region of the ink density map as a text region, a partial text region, a color region or a white region and modifying the data image for corresponding regions identified as text areas.
摘要翻译：提供了一种通过彩色复印机在包括文本和图形区域的文档的副本中增强文本再现的方法，该方法包括从识别墨密度图的区域的文档的数据图像创建墨密度图作为文本区域，部分文本区域，颜色区域或白色区域，并且修改被标识为文本区域的相应区域的数据图像。

8. 发明授权

US07309117B1 Multi-valued raster elements as a technique to reduce the memory requirements and computation complexity of advanced ink jet systems 有权
标题翻译：多值光栅元素作为降低先进喷墨系统的存储器要求和计算复杂度的技术
公开(公告)号：US07309117B1
公开(公告)日：2007-12-18
申请号：US11032616
申请日：2005-01-10
申请人： Derek T. Walton , Brendan P. Mullaly
发明人： Derek T. Walton , Brendan P. Mullaly
IPC分类号： B41J2/205 , G06K1/00
CPC分类号： G06K15/102
摘要： A printing system comprising a set of nozzles for applying a color component, wherein each of the nozzles in the set is configured to apply a different effective color intensity; and a raster associated with the set of nozzles, the raster comprising a plurality of cells wherein each cell in the plurality of cells comprises at least one element which represents the effective color intensity to be applied to an area by the set of nozzles, wherein the number of elements in a cell is less than the range of different effective color intensities.
摘要翻译：一种打印系统，包括用于施加颜色分量的一组喷嘴，其中所述组中的每个喷嘴被配置为施加不同的有效颜色强度; 以及与所述一组喷嘴相关联的光栅，所述光栅包括多个单元，其中所述多个单元中的每个单元包括表示由所述一组喷嘴施加到区域的有效颜色强度的至少一个元件，其中，单元格中的元素数量小于不同有效颜色强度的范围。

9. 发明授权

US06459433B1 Method and apparatus for compression of a two dimensional video object 失效
标题翻译：用于压缩二维视频对象的方法和装置
公开(公告)号：US06459433B1
公开(公告)日：2002-10-01
申请号：US08846423
申请日：1997-04-30
申请人： Derek T. Walton
发明人： Derek T. Walton
IPC分类号： G06T1140
CPC分类号： G06T9/001
摘要： A method and apparatus for compression of a two dimensional video object such that the video object may subsequently be displayed as a three dimensional object is generally accomplished by a set-up engine which receives vertex parameters and generates a plurality of derivatives and Bresenham parameters, therefrom. The derivatives and Bresenham parameters are provided to an edgewalker circuit which produces, therefrom, a plurality of spans which, in turn, is converted in to a set of texel addresses by a texel address generator. A texel fetch circuit receives the set of texel addresses and uses the addresses to retrieve a set of texels, which is subsequently processed by a texel processor to produce a filtered pixel. To retrieve the set of texels, the texel fetch circuit retrieves a set of indexes based on the texel addresses and uses the set of texels to retrieve the set of texels from a codebook. The retrieval of the set of indexes and the indexing of the codebook is executed within two consecutive clock cycles.
摘要翻译：用于压缩二维视频对象的方法和装置，使得视频对象随后可以被显示为三维对象，通常由接收顶点参数并产生多个衍生和Bresenham参数的设置引擎来实现。衍生物和Bresenham参数被提供给edgewalker电路，其产生多个跨度，其又由纹素地址发生器转换成一组纹素地址。纹理提取电路接收一组纹素地址，并使用地址来检索一组纹素，随后由纹素处理器处理以生成滤波像素。为了检索纹理集，纹理提取电路基于纹素地址检索一组索引，并使用一组纹素从码本中检索一组纹素。一组索引的检索和码本的索引在两个连续的时钟周期内执行。

10. 发明授权

US08665498B2 Method and system for automatically detecting and processing halftone regions in scanned documents 有权
标题翻译：扫描文件中自动检测和处理半色调区域的方法和系统
公开(公告)号：US08665498B2
公开(公告)日：2014-03-04
申请号：US12839771
申请日：2010-07-20
申请人： Ragnar H. Jonsson , Derek T. Walton
发明人： Ragnar H. Jonsson , Derek T. Walton
IPC分类号： H04N1/405
CPC分类号： H04N1/4092 , G06T5/008 , G06T7/11 , G06T7/136 , G06T2207/10008 , G06T2207/20012 , H04N1/58
摘要： A system for halftone processing is provided. The system includes a programmable halftone segmentation system having one or more programmable parameters to accommodate different input image parameters, such as different printer or scanner parameters, and configured to generate output control data as a function of image input data. A programmable output processor receives the output control data and the image input data and generates image output data that compensates for halftone regions in the image input data.
摘要翻译：提供了一种半色调处理系统。该系统包括具有一个或多个可编程参数以适应诸如不同打印机或扫描仪参数的不同输入图像参数并且被配置为根据图像输入数据生成输出控制数据的可编程半色调分割系统。可编程输出处理器接收输出控制数据和图像输入数据，并产生补偿图像输入数据中的半色调区域的图像输出数据。

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