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1. 发明授权

US07422310B2 Methods and apparatus for selecting image enhancement techniques 有权
标题翻译：用于选择图像增强技术的方法和装置
公开(公告)号：US07422310B2
公开(公告)日：2008-09-09
申请号：US10423255
申请日：2003-04-25
申请人： Shell S. Simpson , Eugene A. Roylance
发明人： Shell S. Simpson , Eugene A. Roylance
IPC分类号： G03G15/00
CPC分类号： H04N1/40006 , H04N1/00965 , H04N1/4092
摘要： A memory integrated into a removable cartridge for an image forming device is formatted to store a state variable reflecting a state of a printing component. A method embodiment includes reading the state variable. An image enhancement technique, selected according to the state variable, is implemented. In another embodiment, the memory contains technique selection criteria. The technique selection criteria is processed with the state variable to select a template set identifying one or more image enhancement techniques.
摘要翻译：集成到用于图像形成装置的可移除盒中的存储器被格式化以存储反映打印部件的状态的状态变量。方法实施例包括读取状态变量。实现了根据状态变量选择的图像增强技术。在另一个实施例中，存储器包含技术选择标准。用状态变量处理技术选择标准，以选择识别一个或多个图像增强技术的模板集。

2. 发明授权

US5987221A Encoded orphan pixels for discriminating halftone data from text and line art data 失效
标题翻译：用于从文本和线条艺术数据中区分半色调数据的编码孤立像素
公开(公告)号：US5987221A
公开(公告)日：1999-11-16
申请号：US788768
申请日：1997-01-24
申请人： James G Bearss , Eugene A Roylance , Terry M. Nelson , Arlin R Jones
发明人： James G Bearss , Eugene A Roylance , Terry M. Nelson , Arlin R Jones
IPC分类号： B41J2/52 , B41J21/00 , G06F3/12 , G06T5/00 , H04N1/40 , H04N1/405 , H04N1/409 , G06K9/34 , G06K9/44 , G06K15/02
CPC分类号： H04N1/40062
摘要： Text and line art image data is distinguished from halftone image data for selectively enhanced rendering thereof. Specifically, a method of rendering a raster pixel image from a stored bitmap includes (i) determining whether an orphan pixel is detected within a bounded sampling window of the bitmap, and, (ii) processing at least one selected pixel of the bitmap within the sampling window relative to the determining of whether an orphan pixel is detected. In general, an orphan pixel is defined as an isolated white or black pixel in a halftone image. In one embodiment, an orphan pixel is recognized as having a predefined pixel value and as having no other pixels with that value adjacent thereto within the sampling window. In the event an orphan pixel is detected within the window, then the bitmap within the window is determined to be halftone image data and the selected pixel is processed accordingly. In the event an orphan pixel does not exist within the window, then the bitmap within the window is recognized as text or line art image data and processed respectively. In addition, a method of forming a dither matrix for a halftone image includes generating a pixel pattern such that an orphan pixel exists within the pattern of the dither matrix. The orphan pixel is designed into the halftone image. This measure increases the probability that orphan pixels will exist and be detected in the resultant raster image array. Thus, during subsequent rendering of the raster pixel image, selective application of resolution enhancement techniques may occur based on whether or not an orphan pixel is detected in the sampling window.
摘要翻译：文本和线条艺术图像数据与半色调图像数据区分开，以便选择性地增强其再现。具体来说，从存储的位图中渲染光栅像素图像的方法包括（i）确定在位图的有界采样窗口内是否检测到孤立像素，以及（ii）处理位图内的位图的至少一个选定像素相对于确定是否检测到孤立像素的采样窗口。通常，孤立像素被定义为半色调图像中的孤立的白色或黑色像素。在一个实施例中，孤立像素被识别为具有预定义的像素值，并且在采样窗口内不具有与其相邻的值的其它像素。在窗口内检测到孤立像素的情况下，窗口内的位图被确定为半色调图像数据，并且相应地处理所选择的像素。在窗口内不存在孤立像素的情况下，窗口内的位图被识别为文本或线条图像数据并被分别处理。此外，形成半色调图像的抖动矩阵的方法包括生成像素图案，使得孤立像素存在于抖动矩阵的图案内。孤立像素被设计成半色调图像。这种措施增加了孤立像素将存在并在最终的光栅图像阵列中被检测的可能性。因此，在随后渲染光栅像素图像期间，基于在采样窗口中是否检测到孤立像素可以选择性地应用分辨率增强技术。

3. 发明授权

US07710443B2 Providing data 有权
标题翻译：提供数据
公开(公告)号：US07710443B2
公开(公告)日：2010-05-04
申请号：US11680214
申请日：2007-02-28
申请人： Kenneth K. Smith , Eugene A. Roylance , Kenneth E. Major
发明人： Kenneth K. Smith , Eugene A. Roylance , Kenneth E. Major
IPC分类号： B41J2/435
CPC分类号： G06K15/1261 , G06K15/129
摘要： A method comprising storing a first line of data that is received from processing circuitry across a first set of conductors prior to receiving a first signal from a laser engine having a plurality of laser units and providing the first line of data and a second line of data that is received from the processing circuitry across the first set of conductors to the laser engine in response to receiving the first signal is provided.
摘要翻译：一种方法，包括在从具有多个激光单元的激光引擎接收到第一信号并且提供第一数据线和第二行数据之前，存储从处理电路接收的第一数据线跨越第一组导体提供了响应于接收到第一信号而从处理电路跨越第一组导体接收到激光引擎的。

4. 发明授权

US07480072B2 Efficient and flexible multi-bit halftoning 有权
标题翻译：高效灵活的多位半色调
公开(公告)号：US07480072B2
公开(公告)日：2009-01-20
申请号：US09942293
申请日：2001-08-29
申请人： Eugene A. Roylance
发明人： Eugene A. Roylance
IPC分类号： G06K15/00
CPC分类号： H04N1/405 , G06K15/00
摘要： An implementation of a technology, described herein, for efficient and flexible multi-bit halftoning on a marking device, such as a printer. At least one implementation of the technology, described herein, performs multi-bit halftoning with hardware (e.g., circuitry) rather than a programmable processor. Furthermore, at least one implementation performs multi-bit halftoning for a variable number of bits per pixel and a variable resolution. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.
摘要翻译：本文描述的技术的实现，用于在诸如打印机的标记设备上的有效且灵活的多位半色调。本文描述的技术的至少一个实施方式使用硬件（例如，电路）而不是可编程处理器执行多比特半色调。此外，至少一个实现对于每像素可变数量的位和可变分辨率执行多位半色调。本摘要本身并不旨在限制本专利的范围。在所附权利要求中指出了本发明的范围。

5. 发明授权

US06941011B2 Method and system for image processing including mixed resolution, multi-channel color compression, transmission and decompression 失效
标题翻译：包括混合分辨率，多通道色彩压缩，传输和解压缩的图像处理方法和系统
公开(公告)号：US06941011B2
公开(公告)日：2005-09-06
申请号：US10185992
申请日：2002-06-27
申请人： Eugene A. Roylance , Randall E. Grohs
发明人： Eugene A. Roylance , Randall E. Grohs
IPC分类号： H04N1/64 , G06K9/34
CPC分类号： H04N1/642
摘要： The present invention is a method and system for mixed resolution, multi-channel color image processing including compression, transmission and decompression. The color information is defined at a lower resolution since colors generally do not change at a high frequency and higher compression ratios may be obtained with the lower resolution. The edge information contains the commands switch between the foreground and background colors. The edge information occurs at high resolution and high frequency rates relative to the color information. The lower resolution color planes can be pixel replicated to the resolution of the edge information after compression and decompression for proper edge selection to occur. The resulting reconstructed image of foreground and background colors retains high detail.
摘要翻译：本发明是一种用于混合分辨率，多通道彩色图像处理的方法和系统，包括压缩，传输和解压缩。颜色信息以较低的分辨率定义，因为颜色通常不会在高频下变化，并且可以以更低的分辨率获得较高的压缩比。边缘信息包含前景和背景颜色之间的命令切换。边缘信息相对于颜色信息以高分辨率和高频率发生。较低分辨率的彩色平面可以被像素复制到压缩和解压缩之后的边缘信息的分辨率，以进行正确的边缘选择。所得到的前景和背景颜色的重建图像保留了高细节。

6. 发明授权

US06236427B1 Edge placement device 有权
标题翻译：边缘放置装置
公开(公告)号：US06236427B1
公开(公告)日：2001-05-22
申请号：US09491995
申请日：2000-01-26
申请人： Eugene A. Roylance , Robert D. Morrison
发明人： Eugene A. Roylance , Robert D. Morrison
IPC分类号： B41J2435
CPC分类号： G06K15/1223 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/04784
摘要： An embodiment of an edge placement device is supplied with transition data to generate transitions during a pixel time period corresponding to the transition data. The transition data is supplied by pulse code logic that converts pixel data to the transition data. The embodiment of an edge placement device includes first edge placement logic coupled to taps from a first clock delay chain and second edge placement logic coupled to taps of a second clock phase delay chain. Also included is a phase splitter that generate a first and a second clock phase coupled, respectively, to the first and the second clock delay chain from a clock corresponding to a pixel time period. The first and the second clock phase have rising edges on alternate cycles of the clock. The first and the second edge placement logic each include a plurality of D flip flops. The clock inputs of each of the flip flops in the first and the second edge placement logic are coupled, respectively, to one tap from first or the second clock delay chain. The D inputs of the flip flops of the first and the second placement edge placement logic are coupled, respectively, to a first and a second data phase provided by the pulse code logic. By setting the values of the first and the second data phases, supplied on alternate cycles of the clock, video data is generated having transitions during the pixel time period corresponding to the pixel data.
摘要翻译：向边缘放置装置的实施例提供过渡数据，以在对应于转换数据的像素时间段期间产生转变。转换数据由将像素数据转换为转换数据的脉冲代码逻辑提供。边缘放置装置的实施例包括耦合到来自第一时钟延迟链的抽头和耦合到第二时钟相位延迟链的抽头的第二边缘放置逻辑的第一边缘放置逻辑。还包括一个分相器，其产生从对应于像素时间周期的时钟分别耦合到第一和第二时钟延迟链的第一和第二时钟相位。第一和第二时钟相位在时钟的交替周期上具有上升沿。第一和第二边缘放置逻辑每个包括多个D触发器。第一和第二边缘放置逻辑中的每个触发器的时钟输入分别被耦合到来自第一或第二时钟延迟链的一个抽头。第一和第二放置边缘放置逻辑的触发器的D输入分别耦合到由脉冲代码逻辑提供的第一和第二数据相位。通过设置在时钟的交替周期提供的第一和第二数据相位的值，生成在对应于像素数据的像素时间周期期间具有转变的视频数据。

7. 发明授权

US07443413B2 Laser diode modulator and method of controlling laser diode modulator 失效
标题翻译：激光二极管调制器和控制激光二极管调制器的方法
公开(公告)号：US07443413B2
公开(公告)日：2008-10-28
申请号：US11255566
申请日：2005-10-21
申请人： Rodolfo Jodra , George Henry Kerby , Eugene A. Roylance
发明人： Rodolfo Jodra , George Henry Kerby , Eugene A. Roylance
IPC分类号： B41J2/435
CPC分类号： H04N1/40037 , B41J2/442 , B41J2/471 , G06K15/1209 , H04N1/4005
摘要： A method for adjusting a laser diode drive current pulse, comprises providing a power correction table comprising drive current pulse correction factors corresponding to counter positions. The method also comprises providing a jump table comprising counter position adjustments corresponding to correction factors. A count value of a position within the counter positions is maintained. Maintaining the count value comprises indexing the count value to the jump table and incrementing the count value for each of a series of pixel clocks. A correction factor is determined, wherein determining the current correction factor comprises indexing the count value to the power correction table.
摘要翻译：一种用于调整激光二极管驱动电流脉冲的方法，包括提供功率校正表，其包括对应于计数器位置的驱动电流脉冲校正因子。该方法还包括提供包括对应于校正因子的计数器位置调整的跳转表。保持计数器位置内的位置的计数值。维持计数值包括将计数值索引到跳转表，并递增一系列像素时钟中的每一个的计数值。确定校正因子，其中确定当前校正因子包括将计数值索引到功率校正表。

8. 发明授权

US5517601A High speed apparatus and method for rasterization of font glyphs 失效
标题翻译：用于字形字形光栅化的高速设备和方法
公开(公告)号：US5517601A
公开(公告)日：1996-05-14
申请号：US316162
申请日：1994-09-30
申请人： Robert Rust , Eugene A. Roylance
发明人： Robert Rust , Eugene A. Roylance
IPC分类号： B41J2/485 , G06K7/14 , G06T11/40 , G09G5/24 , G09G5/36 , G06K7/10
CPC分类号： G06K7/143 , G06K7/14
摘要： An apparatus derives data to enable a fill action during operation of a print device along a scan line. The apparatus includes a processor which determines, for each of a sequence of contours of a glyph, point of intersection values between a scan line and the contours. The sequential point of intersection values indicate OFF-to-ON and ON-to-OFF transitions required of the print device. Sequential OFF-to-ON and ON-to-OFF transitions comprise a transition pair. The apparatus includes a memory comprising 2N storage positions for storage of N transition pairs. Comparator circuitry is coupled in parallel to the 2N storage positions. A controller operates the comparator circuitry to determine an order of all OFF-to-ON point of intersection values and an order of all ON-to-OFF point of intersection values in the 2N storage positions. Switch circuitry is responsive to the determined order of OFF-to-ON point of intersection values to re-order the OFF-to-ON point of intersection values in the 2N storage positions and is further responsive to the determined order of the ON-to-OFF point of intersection values to re-order the ON-to-OFF point intersection values in the 2N storage positions. Overlap regions are determined and transition pairs to be arranged so that overlap regions are ignored.
摘要翻译：一个装置导出数据，以便在沿着扫描线的打印装置的操作期间执行填充动作。该装置包括一个处理器，对于一个字形的轮廓序列中的每一个，确定扫描线和轮廓之间的交点值。顺序交叉点值表示打印设备所需的OFF到ON和ON到OFF转换。顺序关断到ON和ON到OFF转换包括转换对。该装置包括存储N个存储位置以存储N个转换对的存储器。比较器电路并联耦合到2N个存储位置。控制器操作比较器电路以确定所有OFF到ON交点交点值的顺序和2N个存储位置中所有ON到OFF交点值的顺序。开关电路响应于所确定的OFF到ON点交点值的顺序来重新排列2N个存储位置中的OFF到ON点的交点值，并且进一步响应于所确定的ON-到 -OFF点的交点值重新排列2N个存储位置中的ON到OFF点交点值。重叠区域被确定，并且转换对被布置成忽略重叠区域。

9. 发明授权

US07142316B2 Supporting multiple print engine configurations through compatible delay window storage modes 有权
公开(公告)号：US07142316B2
公开(公告)日：2006-11-28
申请号：US10150804
申请日：2002-05-16
申请人： Eugene A. Roylance , John H. Harris , Marc L. Warner
发明人： Eugene A. Roylance , John H. Harris , Marc L. Warner
IPC分类号： G06F15/00
CPC分类号： G06K15/12
摘要： The system, methods and hardware described herein relate to processing raster data on an EP (electrophotographic) process printing device. A hardware ASIC supports multiple EP print engine configurations through a common delay window block that presents a variable two-dimensional view of raster data formatted in a consistent manner that is compatible for processing by various enhancement blocks. Benefits of the disclosed system, methods and hardware include decreased development costs for EP printers due to a reduced need to design, test, and manufacture different ASICs for numerous EP print engine configurations.

10. 发明授权

US06439679B1 Pulse with modulation signal generating methods and apparatuses 失效
标题翻译：具有调制信号生成方法和装置的脉冲
公开(公告)号：US06439679B1
公开(公告)日：2002-08-27
申请号：US09888122
申请日：2001-06-22
申请人： Eugene A. Roylance
发明人： Eugene A. Roylance
IPC分类号： B41J2938
CPC分类号： B41J2/04541 , B41J2/04573 , B41J2/04586 , B41J2/04591
摘要： A pulse width modulator (PWM) circuit is provided. The PWM circuit includes a selective synchronization circuit configured to receive vector signals, and selectively synchronize the vector signals. The synchronized vector signals are provided to a tap selection circuit configured to output tap selection signals that are logically combined by a transition generating circuit to produce a pulse width modulated signal based on logically detected transitions in the tap selection signals.
摘要翻译：提供了一种脉宽调制器（PWM）电路。 PWM电路包括选择同步电路，其被配置为接收矢量信号，并且选择性地使矢量信号同步。同步矢量信号被提供给抽头选择电路，其被配置为输出由转换发生电路逻辑组合的抽头选择信号，以基于逻辑检测到的抽头选择信号中的转变来产生脉宽调制信号。

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