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公开(公告)号：US07031025B1
公开(公告)日：2006-04-18
申请号：US09645790
申请日：2000-08-23
Applicant: Zhen He , Charles A. Bouman , Qian Lin
Inventor： Zhen He , Charles A. Bouman , Qian Lin
IPC: H04N1/40
CPC classification number: H04N1/4057
Abstract: A combined dot density and size modulation system uses dispersed dot halftoning in conjunction with dot size modulation to produce a halftone image in which both the density and size of the dots are modulated to control overall gray level. The dot density and size modulation system offers advantages over pure dot density modulation systems or pure dot size modulation systems because it allows an extra degree of flexibility which can be used to increase the visual quality of the halftoned pattern and/or increase the robustness of the halftoning to printer artifacts and variations. An input pixel value is used to independently produce a dot density value and a dot size value. The dot density value and dot size values may be obtained from, e.g., look up tables that have been optimized for print quality and printer stability. Dispersed dot halftoning is used to provide a halftone value for the desired pixel location using the dot density value. The dispersed dot halftoning may be, e.g., tone dependent error diffusion. The halftone value and the dot size value for the pixel location is then used to generate a modulated code, e.g., a pulse width modulated code, to the printer. The modulated code may include both the pulse width of the desired dot for the pixel location as well as the justification, e.g. left, center, or right, for the pixel location. The dot density and size modulation system is particularly useful in modern electrophotographic printing systems that allow the printed dot size to be almost continuously varied through the specification of a pulse width modulation (PWM) code.
Abstract translation: 组合点密度和尺寸调制系统使用分散点半色调与点尺寸调制相结合来产生半色调图像，其中调整点的浓度和尺寸以控制总体灰度级。 点密度和尺寸调制系统提供优于纯点密度调制系统或纯点尺寸调制系统的优点，因为它允许额外的柔度，可用于增加半色调图案的视觉质量和/或增加其稳健性 半色调到打印机工件和变体。 输入像素值用于独立地产生点密度值和点大小值。 点密度值和点尺寸值可以从例如针对打印质量和打印机稳定性优化的查找表获得。 分散的点半色调用于使用点密度值为期望的像素位置提供半色调值。 分散的点半色调可以是例如与音调相关的误差扩散。 然后使用像素位置的半色调值和点尺寸值来向打印机生成调制码，例如脉宽调制码。 调制码可以包括用于像素位置的期望点的脉冲宽度以及对齐，例如， 左，中或右，用于像素位置。 点密度和尺寸调制系统在现代电子照相印刷系统中特别有用，通过脉冲宽度调制（PWM）代码的规定，允许印刷的点尺寸几乎连续变化。
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公开(公告)号：US07511857B2
公开(公告)日：2009-03-31
申请号：US10764839
申请日：2004-01-26
Applicant: Zhen He , Charles A. Bouman
Inventor： Zhen He , Charles A. Bouman
IPC: H04N1/405
CPC classification number: H04N1/405 , H04N1/4057
Abstract: A combined dot density (FM) and dot size (AM) modulation halftoning method and system produces a halftone in which both the density and size of the dots are modulated. In addition to modulating the dot size and density, the halftoning method can also explicitly control the size of dot clusters and different intensity levels.
Abstract translation: 组合点密度（FM）和点尺寸（AM）调制半色调方法和系统产生调制了点的密度和尺寸的半色调。 除了调整点大小和密度之外，半色调方法还可以明确地控制点簇的大小和不同的强度级别。
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公开(公告)号：US08294964B2
公开(公告)日：2012-10-23
申请号：US12420490
申请日：2009-04-08
Applicant: Zhen He
Inventor： Zhen He
Abstract: What is disclosed is a novel system and method for performing a CMYK to CMYKKpRGB color transform which helps reduce engine-specific halftone artifacts in diverse printing devices capable of dot-on-dot printing. The present method lends adaptive color overlapping control to local color regions depending on the engine behaviors and imaging artifacts to be addressed. With such a transform, an added degree of flexibility is provided to a variety of halftoning algorithms to reduce engine-specific halftone artifacts. Advantageously, increased halftone image quality is effectuated for different engine behaviors in a computationally efficient manner. Various embodiments have been disclosed.
Abstract translation: 所公开的是用于执行CMYK到CMYKKpRGB颜色变换的新颖的系统和方法，其有助于在能够进行点对点打印的各种打印设备中减少引擎特定的半色调伪影。 本方法根据要解决的发动机行为和成像伪像，对局部颜色区域进行自适应颜色重叠控制。 通过这种变换，为各种半色调算法提供了增加的灵活性，以减少引擎特定的半色调伪像。 有利地，以计算上有效的方式对不同的发动机行为实现增加的半色调图像质量。 已经公开了各种实施例。
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公开(公告)号：US20110183159A1
公开(公告)日：2011-07-28
申请号：US12464689
申请日：2009-05-12
Applicant: Zhen He , Kenneth H. Nealson , Florian Mansfeld
Inventor： Zhen He , Kenneth H. Nealson , Florian Mansfeld
CPC classification number: H01M8/16 , C02F1/46104 , C02F3/301 , C02F3/302 , C02F3/341 , C02F2001/46123 , C02F2101/16 , C02F2101/163 , C02F2101/166 , Y02E60/527
Abstract: A microbial fuel cell for generating electricity. The microbial fuel cell includes an anode and a cathode electrically coupled to the anode. The anode is in contact with a first fluid including microorganisms capable of catalyzing the oxidation of ammonium. The anode is in contact with a second fluid including microorganisms capable of catalyzing the reduction of nitrite. The anode and the cathode may be housed in a single compartment, and the cathode may rotate with respect to the anode. The microbial fuel cell can be used to remove ammonium from wastewater, to generate electricity, or both.
Abstract translation: 用于发电的微生物燃料电池。 微生物燃料电池包括电耦合到阳极的阳极和阴极。 阳极与包含能够催化铵氧化的微生物的第一流体接触。 阳极与包含能够催化还原亚硝酸盐的微生物的第二流体接触。 阳极和阴极可以容纳在单个隔室中，并且阴极可以相对于阳极旋转。 微生物燃料电池可用于从废水中除去铵，产生电力，或两者兼而有之。
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公开(公告)号：US07898705B2
公开(公告)日：2011-03-01
申请号：US11537032
申请日：2006-09-29
Applicant: Zhen He
Inventor： Zhen He
CPC classification number: H04N1/642
Abstract: A method to determine the color status of a scanned original segments a binary halftone image into a predetermined number of local windows and converts each local window to a device-independent color space. The method then determines a color space parameter for each local window and compares the color space parameters for the local windows to at least one threshold to determine the color status of the scanned original. An apparatus having a scanner creates a scanned image of an original and has at least one processor to create a binary halftone image from the scanned image, segment the binary halftone image into a predetermined number of local windows, convert each local window to a device-independent color space, determine a color space parameter for each local window, and compare the color space parameter for each local window to at least one threshold to determine the color status for the scanned original.
Abstract translation: 确定扫描的原稿的颜色状态的方法将二进制半色调图像分割成预定数量的本地窗口，并将每个本地窗口转换为与设备无关的色彩空间。 该方法然后确定每个本地窗口的颜色空间参数，并将本地窗口的颜色空间参数与至少一个阈值进行比较，以确定扫描的原稿的颜色状态。 具有扫描器的装置产生原稿的扫描图像，并且具有至少一个处理器，用于从扫描图像创建二进制半色调图像，将二进制半色调图像分割成预定数量的本地窗口，将每个本地窗口转换为设备 - 独立颜色空间，确定每个本地窗口的颜色空间参数，并将每个本地窗口的颜色空间参数与至少一个阈值进行比较，以确定扫描原稿的颜色状态。
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Patent Agency Ranking
公开(公告)号：US07715044B2
公开(公告)日：2010-05-11
申请号：US11093352
申请日：2005-03-29
Applicant: Zhen He
Inventor： Zhen He
CPC classification number: H04N1/6022 , H04N1/62
Abstract: A method of gray component replacement receives a current pixel color value. A highlight likelihood and color neutrality is determined for the current pixel color value. An output pixel color value depending upon the color neutrality and the highlight likelihood is generated. The input pixel color value is obtained from an image acquisition system and the output color pixel value is used by an output engine to render the pixel.
Abstract translation: 灰色分量替换的方法接收当前像素颜色值。 确定当前像素颜色值的高光似然性和色彩中性。 产生取决于颜色中性和高光似然性的输出像素颜色值。 从图像获取系统获得输入像素颜色值，输出引擎使用输出彩色像素值来渲染像素。
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公开(公告)号：US20080192309A1
公开(公告)日：2008-08-14
申请号：US11673327
申请日：2007-02-09
Applicant: Zhen He
Inventor： Zhen He
IPC: H04N1/60
CPC classification number: H04N1/603
Abstract: Scanners typically capture image data in a device-dependent RGB space, after which the signal is converted to a device-independent color space. The color data capture and calibration is often not sufficiently accurate and sometimes leads to a visible color difference in hardcopy output. Methods for improving the accuracy include scanning a document into RGB image data, converting the image data of the scanned document into a first device-independent color space, applying a correction transform to modify the image data in the first device-independent color space to reduce the error in the image data, and mapping the modified coordinates to a second output color space for printing.
Abstract translation: 扫描仪通常会捕获与设备相关的RGB空间中的图像数据，之后将信号转换为与设备无关的色彩空间。 彩色数据捕获和校准通常不够准确，有时会导致硬拷贝输出中可见的色差。 用于提高精度的方法包括将文档扫描成RGB图像数据，将扫描的文档的图像数据转换为第一设备无关的颜色空间，应用校正变换来修改第一与设备无关的颜色空间中的图像数据，以减少 图像数据中的错误，并将修改的坐标映射到用于打印的第二输出颜色空间。
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公开(公告)号：US20070146811A1
公开(公告)日：2007-06-28
申请号：US11312425
申请日：2005-12-21
Applicant: Zhen He
Inventor： Zhen He
IPC: H04N1/40
CPC classification number: H04N1/38 , H04N1/00681 , H04N1/0071 , H04N1/00713 , H04N1/00737 , H04N1/00758 , H04N1/00779
Abstract: The present invention discloses a method of automatically detecting a page size for a digital scanning operation. The method includes establishing vertical and horizontal limits of an image area containing image content features of a pre-scanned image, detecting vertical page edge information of the image area, and detecting horizontal page edge information of the image area, such that the vertical and horizontal page edge information define the page size for the pre-scanned image.
Abstract translation: 本发明公开了一种自动检测数字扫描操作的页面大小的方法。 该方法包括建立包含预扫描图像的图像内容特征的图像区域的垂直和水平极限，检测图像区域的垂直页边缘信息，以及检测图像区域的水平页边缘信息，使得垂直和水平 页边缘信息定义预扫描图像的页面大小。
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公开(公告)号：US20060173016A1
公开(公告)日：2006-08-03
申请号：US11395824
申请日：2006-03-31
Applicant: Timothy Guzi , Kamil Paruch , Michael Dwyer , Ronald Doll , Viyyoor Girijavallabhan , Lawrence Dillard , Vinh Tran , Zhen He , Ray James , Haengsoon Park
Inventor： Timothy Guzi , Kamil Paruch , Michael Dwyer , Ronald Doll , Viyyoor Girijavallabhan , Lawrence Dillard , Vinh Tran , Zhen He , Ray James , Haengsoon Park
IPC: A61K31/517 , C07D487/04
CPC classification number: C07D487/04 , A61K31/519 , A61K31/52 , A61K31/704 , A61K31/7072 , A61K45/06 , A61K2300/00
Abstract: In its many embodiments, the present invention provides a novel class of pyrazolo[1,5-a]pyrimidine compounds as inhibitors of cyclin dependent kinases, methods of preparing such compounds, pharmaceutical compositions containing one or more such compounds, methods of preparing pharmaceutical formulations comprising one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the CDKs using such compounds or pharmaceutical compositions.
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公开(公告)号：US20130017414A1
公开(公告)日：2013-01-17
申请号：US13546105
申请日：2012-07-11
Applicant: Zhen He
Inventor： Zhen He
CPC classification number: B01D61/002 , B01D61/025 , B01D2311/25 , C02F1/441 , C02F1/445 , C02F3/005 , C02F3/341 , C02F2001/46138 , C02F2103/08 , C02F2201/003 , C02F2201/46115 , C02F2301/024 , C02F2301/08 , C02F2303/10 , C02F2303/16 , Y02A20/131 , Y02W10/30
Abstract: A bioelectrochemical system includes an anode, a saline solution chamber, and a cathode. The anode is at least partially positioned within an anode chamber containing an aqueous reaction mixture including one or more organic compounds and one or more bacteria for oxidizing the organic compounds. The saline solution chamber contains a draw solution and is separated from the anode chamber by a forward osmosis membrane. Water diffuses across the forward osmosis membrane from the aqueous reaction mixture to the draw solution.
Abstract translation: 生物电化学系统包括阳极，盐水溶液室和阴极。 阳极至少部分地位于包含含有一种或多种有机化合物和一种或多种用于氧化有机化合物的细菌的含水反应混合物的阳极室内。 盐水溶液室含有一个拉伸溶液，并通过正向渗透膜与阳极室分离。 水从正反渗透膜从水性反应混合物扩散到拉伸溶液。
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