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1. 发明授权

US07317547B2 Single compressor with plural decompressors for multi-laser printing 有权
标题翻译：具有多重减压器的单压缩机，用于多次激光打印
公开(公告)号：US07317547B2
公开(公告)日：2008-01-08
申请号：US10140697
申请日：2002-05-07
申请人： Randall E Grohs , Scott C. Clouthier
发明人： Randall E Grohs , Scott C. Clouthier
IPC分类号： G06F3/12 , G06F15/00 , G06K1/00
CPC分类号： G06K15/00 , G06K15/1817 , G06K15/184 , G06K15/1865
摘要： In a laser printer having a plurality of lasers, each of which effectuates the deposition of toner onto lines of a page to be printed, a method of printing several lines substantially simultaneously comprises storing within a single print data buffer, print data compressed using a predetermined compression methodology. The method also includes decompressing a predetermined segment of said compressed print data by one of a plurality of data de-compressors, each of which is operatively coupled to a laser that effectuates the deposition of toner onto a single line of a media.
摘要翻译：在具有多个激光器的激光打印机中，每个激光器使得调色剂沉积在要打印的页面的线上，基本上同时打印多条线的方法包括在单个打印数据缓冲器内存储使用预定的压缩的打印数据压缩方法。该方法还包括通过多个数据解压缩器之一对压缩的打印数据的预定段进行解压缩，每个数据解压缩器可操作地耦合到激光器，该激光器将调色剂沉积到介质的单个线上。

2. 发明授权

US06778291B1 Fast page analyzer for proper selection of compression engine for rendered data 失效
标题翻译：快速页面分析器，用于正确选择渲染数据的压缩引擎
公开(公告)号：US06778291B1
公开(公告)日：2004-08-17
申请号：US09591998
申请日：2000-06-12
申请人： Scott C. Clouthier
发明人： Scott C. Clouthier
IPC分类号： G06F1500
CPC分类号： H04N19/12 , H04N19/14
摘要： To reduce the memory requirements of a printer, it is desirable to compress rendered data of a to-be-printed page. Specific types of data of a to-be-printed page are best compressed using either lossless or lossy data-compression engines. “Text,” “graphics,” and “halftone” images are typically best compressed using a lossless engine. “Natural” images (such as photographs) are typically best compressed using a lossy engine. To select the best compression engine, the fast page analyzer divides the page into multiple horizontal strips of multiple horizontal lines. The fast page analyzer concurrently compresses and analyzes each strip. The analysis of one strip determines which compression engine is used to compress the next strip. In effect, each strip predicts the proper engine to compress the next strip. When printing a page that has been compressed in that manner, the printer will decompress each strip using its associated decompressor. The pixels and lines are delivered to a print engine as they are decompressed and in the order that the print engine prints the image onto the paper.
摘要翻译：为了减少打印机的存储器要求，期望压缩被打印页面的渲染数据。要打印的页面的特定数据类型最好使用无损或有损数据压缩引擎进行压缩。 “文本”，“图形”和“半色调”图像通常使用无损引擎进行最佳压缩。 “自然”图像（如照片）通常使用有损引擎最佳压缩。要选择最佳的压缩引擎，快速页分析仪将页面分为多个水平线条。快速页面分析器同时压缩和分析每个条带。一个条的分析决定了哪个压缩引擎用于压缩下一个条。实际上，每个条带预测适当的发动机压缩下一条。当以这种方式打印已压缩的页面时，打印机将使用其相关的解压缩程序解压缩每个条带。像素和线条在被解压缩时被传送到打印引擎，并且按照打印引擎将图像打印到纸上的顺序。

3. 发明授权

US5892890A Computer system with parallel processor for pixel arithmetic 失效
标题翻译：具有并行处理器的计算机系统用于像素算术
公开(公告)号：US5892890A
公开(公告)日：1999-04-06
申请号：US877349
申请日：1997-06-17
申请人： Scott C. Clouthier , Douglas Heins
发明人： Scott C. Clouthier , Douglas Heins
IPC分类号： B41J5/30 , G06F3/12 , G06T1/20 , G09G5/00 , G09G5/393 , G06T15/00 , G05B11/00
CPC分类号： G09G5/393 , G09G2340/12
摘要： A pixel processor, for use in conjunction with a color video monitor or an all points addressable color print engine, includes brush logic, mask logic, clip logic, and a multi-pixel logic unit to produce a page map consisting of millions of pixels, each having a color value. To portray a 2D-rasterization of overlapping objects with portions of objects being transparent, and objects shaded with colored pattern, the processor combines source S, brush T, pattern mask, source mask, and prior destination D data. Brush logic combines an RGB color setting with a pattern to provide the brush data, tiled within a source region. Mask logic ensures transparency of portions of the pattern or source as defined by pattern mask data and source mask data, respectively. Clip logic limits pixel updates in regions of the page map not within the source region. The processor includes dynamically reconfigurable bit-slice architecture, for updating multiple pixels in parallel, for example four 8-bit pixels in one color plane per operation in a 32-bit embodiment. Registers hold intermediate results of arithmetic comparisons permitting a single raster operation such as S ((S T) & (T D)) to be performed in four clock periods. The symbol " " represents a function that returns the absolute value of the difference of the operands. The symbol "&" represents a function that returns the arithmetic "minimum" of, in this case, intermediate results.
摘要翻译：用于与彩色视频监视器或全点可寻址彩色打印引擎结合使用的像素处理器包括画笔逻辑，掩模逻辑，剪辑逻辑和多像素逻辑单元，以产生由数百万像素组成的页面映射，每个都有一个颜色值。为了描绘重叠对象的2D光栅化，对象的部分是透明的，并且对象用彩色图案着色，处理器组合了源S，画笔T，图案掩码，源掩码和先前的目标D数据。画笔逻辑将RGB颜色设置与图案相结合，以提供平铺在源区域内的画笔数据。掩模逻辑确保模式或源的部分的透明度分别由模式掩码数据和源掩码数据定义。剪辑逻辑限制不在源区域内的页面映射区域中的像素更新。该处理器包括用于在32位实施例中每个操作更新并行更新多个像素的动态可重新配置的位片结构，例如每个操作中的一个彩色平面中的四个8位像素。寄存器保存中间的算术比较结果，允许在四个时钟内执行单个栅格操作，如S + E，Cir + EE（（S + E，Cir + EE T）＆（T + E，cir + EE D））时期。符号“+ E，cir + EE”表示返回操作数差的绝对值的函数。符号“＆”表示返回算术“最小”的函数，在这种情况下是中间结果。

4. 发明授权

US07576880B2 Cooperative rasterization of print data in an enterprise network 有权
标题翻译：企业网络中打印数据的协同光栅化
公开(公告)号：US07576880B2
公开(公告)日：2009-08-18
申请号：US10701144
申请日：2003-11-03
申请人： Robert D. Christiansen , Scott C. Clouthier , Brian E. Hoffmann
发明人： Robert D. Christiansen , Scott C. Clouthier , Brian E. Hoffmann
IPC分类号： G06F3/12 , G06F5/14
CPC分类号： H04N1/00222 , G06F3/122 , G06F3/1247 , G06F3/1285 , G06K15/02 , G06K15/1859
摘要： Systems and methods for cooperative rasterization of print data in an enterprise network are described. In one aspect, a primary printer rasterizes a portion of a print job to input raster bits into a raster buffer associated with the primary printer. During print job processing operations, the primary printer identifies a potential underflow condition of the raster buffer. Thus, the primary printer communicates an un-rasterized portion of the print job to a secondary printer for the secondary printer to rasterize—the primary printer not rasterizing the un-rasterized portion. Subsequently, the primary printer receives raster bits corresponding to the un-rasterized portion from the secondary printer. The primary printer prints all of the raster bits corresponding to the print job.
摘要翻译：描述了企业网络中打印数据的协同光栅化的系统和方法。在一个方面，主打印机光栅化打印作业的一部分以将光栅位输入到与主打印机相关联的光栅缓冲器中。在打印作业处理操作期间，主打印机识别光栅缓冲器的潜在下溢条件。因此，主打印机将打印作业的未光栅化部分传送到用于次打印机的辅助打印机以光栅化 - 主打印机不光栅化未光栅化部分。随后，主打印机从辅助打印机接收对应于未光栅化部分的光栅位。主打印机打印与打印作业相对应的所有光栅位。

5. 发明授权

US07532358B2 Hardware implemented loss-less page data compressor/decompressor 有权
标题翻译：硬件实现无损页数据压缩/解压缩
公开(公告)号：US07532358B2
公开(公告)日：2009-05-12
申请号：US10341821
申请日：2003-01-14
申请人： Scott C. Clouthier , John H. Harris
发明人： Scott C. Clouthier , John H. Harris
IPC分类号： G06F15/00 , B41J1/00
CPC分类号： H04N1/648 , H03M7/30
摘要： One embodiment of the invention is directed to a printer that is configured to interleave color plane data. The interleaved data is compressed, thereby forming compressed data having runs, seedrow copies and literals. In the compression process, commands are buffered to enable independent and simultaneous operation of a run module, a seedrow copy module and a literal module used in forming the compressed data.
摘要翻译：本发明的一个实施例涉及一种被配置为交织彩色平面数据的打印机。交织的数据被压缩，从而形成具有运行，种子拷贝和文字的压缩数据。在压缩过程中，命令被缓冲以实现运行模块，播种模块和用于形成压缩数据的文字模块的独立且同时的操作。

6. 发明授权

US5852742A Configurable data processing pipeline 失效
标题翻译：可配置数据处理流水线
公开(公告)号：US5852742A
公开(公告)日：1998-12-22
申请号：US878883
申请日：1997-06-17
申请人： Gary L. Vondran, Jr. , James R. Nottingham , Scott C. Clouthier , Douglas Heins , Brian E. Hoffmann
发明人： Gary L. Vondran, Jr. , James R. Nottingham , Scott C. Clouthier , Douglas Heins , Brian E. Hoffmann
IPC分类号： B41J29/38 , B41J5/30 , G06F3/12 , G06F7/00 , G06K15/02 , G06T1/20 , H04N1/40 , H04N1/411 , G06F9/00
CPC分类号： G06K15/02 , G06K2215/0002 , G06K2215/0011 , G06K2215/0094
摘要： A print data processing pipeline for use in a color electrophotographic printer optimizes print quality and minimizes memory usage by separately processing lossy and lossless print data. Lossy print data may include print data for images and lossless print data may include print data for text, line art, and graphics. Partitioning print data into lossy and lossless components allows application of the print data compression operations optimized for each type of print data. High compression ratios can be achieved on lossy print data by applying visually lossless compression operations designed for the lossy print data. In addition, high compression ratios can be achieved on the lossless print data by applying lossless compression operations designed for the lossless print data. A merge unit combines the lossy and lossless print data streams after decompression to reconstruct the original image. Placement of the color space conversion operation and the halftone operation relative to the merge operation, further optimizes the print quality while minimizing memory usage. The print data processing pipeline includes a direct memory access controller which has the capability to allow print data to be selectively directed to the lossy or lossless compressor/decompressor, the color space converter, or the merge unit. Feedback paths within the print data processing pipeline allow the results of the various operations performed to be returned to the direct memory access controller for further processing or storage in system memory. Bypass paths in the color space converter and halftone unit allow print data to be selectively directed around these operations. These capabilities allow configuration of the print data processing pipeline to perform a multitude of permutations of print data processing operations optimized for the print data.
摘要翻译：用于彩色电子照相打印机的打印数据处理流水线通过单独处理有损耗和无损打印数据来优化打印质量并最小化存储器使用。有损打印数据可以包括用于图像的打印数据和无损打印数据可以包括用于文本，线条图形和图形的打印数据。将打印数据分成有损和无损的组件，可以应用针对每种打印数据优化的打印数据压缩操作。通过为有损打印数据应用视觉无损压缩操作，可以在有损打印数据上实现高压缩比。此外，通过为无损打印数据应用无损压缩操作，可以在无损打印数据上实现高压缩比。合并单元在解压缩之后组合有损和无损打印数据流以重建原始图像。相对于合并操作，色彩空间转换操作和半色调操作的放置进一步优化打印质量，同时最小化存储器使用。打印数据处理流水线包括直接存储器访问控制器，其具有允许打印数据被选择性地指向有损或无损压缩器/解压缩器，色空间转换器或合并单元的能力。打印数据处理流水线内的反馈路径允许执行的各种操作的结果返回到直接存储器访问控制器，以便进一步处理或存储在系统存储器中。彩色空间转换器和半色调单元中的旁路路径允许打印数据选择性地围绕这些操作。这些功能允许配置打印数据处理流水线，以执行针对打印数据优化的打印数据处理操作的多种排列。

7. 发明授权

US07576878B2 Enhanced management of raster image processing resources 有权
标题翻译：增强光栅图像处理资源的管理
公开(公告)号：US07576878B2
公开(公告)日：2009-08-18
申请号：US10406357
申请日：2003-04-03
申请人： Robert D. Christiansen , Paul R. Wissenbach , Scott C. Clouthier , Brian E. Hoffmann , Robert E. Stevahn, Jr.
发明人： Robert D. Christiansen , Paul R. Wissenbach , Scott C. Clouthier , Brian E. Hoffmann , Robert E. Stevahn, Jr.
IPC分类号： H04N1/00 , H04N1/333 , H04N1/40 , G06F3/12 , G06F15/163 , G06F15/82 , G06K1/00
CPC分类号： G06F3/1204 , G06F3/1205 , G06F3/1247 , G06F3/1277 , G06F3/1285 , G06F3/1288
摘要： Systems, apparatus, and methods for enhancing management of raster image processing (RIP) resources are described. In one aspect, a printing environment includes a RIP engine and multiple RIP pipelines. The RIP engine is scheduled to perform RIP for a first time period for a first pipeline of the multiple RIP pipelines. Responsive to occurrence of a start time of the first time period, the RIP engine is automatically transferred to the first pipeline for RIP.
摘要翻译：描述了用于增强光栅图像处理（RIP）资源管理的系统，装置和方法。在一个方面，打印环境包括RIP引擎和多个RIP流水线。 RIP引擎计划在多个RIP管道的第一个管道的第一个时间段内执行RIP。响应于发生第一时间段的开始时间，RIP引擎自动传送到第一个管道用于RIP。

8. 发明授权

US06929411B2 Selectable control of raster image processor 有权
公开(公告)号：US06929411B2
公开(公告)日：2005-08-16
申请号：US10654415
申请日：2003-09-03
申请人： Robert D. Christiansen , Ouri Poupko , Scott C. Clouthier , Amir Gaash
发明人： Robert D. Christiansen , Ouri Poupko , Scott C. Clouthier , Amir Gaash
IPC分类号： G06F3/12 , B41J3/42
CPC分类号： G06F3/1213 , G06F3/1247 , G06F3/1285
摘要： Digital printing technologies often rely on raster image processors (RIPs or RIP engines) to convert vector image data to raster, or bit-map, data, which allows a printer to render the image as a pattern of dots or pixels. One problem that the present inventors recognized with conventional RIPs is that they have limited communications capabilities that can in some circumstances reduce their effective processing speed. Accordingly, at least some embodiments of the present invention allow controlling a RIP engine using two or more different RIP control entities.

9. 发明授权

US5949964A Method and apparatus for halftoning of images in a printer 失效
标题翻译：在打印机中对图像进行半色调的方法和装置
公开(公告)号：US5949964A
公开(公告)日：1999-09-07
申请号：US877343
申请日：1997-06-17
申请人： Scott C. Clouthier , Douglas Heins , Brian E. Hoffmann , James R. Nottingham , Gary L. Vondran, Jr.
发明人： Scott C. Clouthier , Douglas Heins , Brian E. Hoffmann , James R. Nottingham , Gary L. Vondran, Jr.
IPC分类号： G06K15/02 , G06T5/00 , H04N1/40 , H04N1/405 , G06F15/00
CPC分类号： H04N1/405 , G06K15/02 , H04N1/40062 , G06K2215/0014 , G06K2215/0065 , G06K2215/0094
摘要： A method for halftoning an image to be rendered onto a media sheet includes the steps of: classifying data portions of a received data stream into one of plural image types, each image type to be subjected to a particular halftone procedure; assigning to each data portion of a common image type, a common identifier and then converting the data portions into a raster representation; subjecting segments of the raster representation to individualized halftone procedures, each segment of the raster representation that is assigned a common identifier being subjected to an identical halftone procedure; and rendering the raster representation onto a media sheet, subsequent to the halftone process. The apparatus for performing the halftone method places the halftone operation subsequent to the rasterization operation and thereby avoids anomalies which occurred in the prior art. Further, the apparatus enables halftone tables which are utilized during the halftone procedure to be altered so as to enable improvements to the halftone method.
摘要翻译：将要呈现到介质片上的图像进行半色调的方法包括以下步骤：将接收到的数据流的数据部分分类为多个图像类型中的一个，每个图像类型要进行特定的半色调处理; 向公共图像类型的每个数据部分分配公共标识符，然后将数据部分转换为光栅表示; 对光栅表示的段进行个性化的半色调处理，对被分配有相同的半色调过程的公共标识符的光栅表示的每个段进行分类; 以及在半色调处理之后将光栅表示呈现在介质片上。用于执行半色调方法的装置在光栅化操作之后放置半色调操作，从而避免现有技术中发生的异常。此外，该设备使得可以改变在半色调过程期间使用的半色调表，以便能够改进半色调方法。

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