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公开(公告)号：US07948658B2
公开(公告)日：2011-05-24
申请号：US12127221
申请日：2008-05-27
CPC分类号： H04N1/6033
摘要： A marking device is controlled to mark a media sheet with halftone dots selected from a set of image halftone dot representations. The marking device is controlled to mark a monitored surface with halftone dots selected from a set of control halftone dot representations to form test patches of different nominal marking densities. Measured marking densities are acquired using a density sensor for the test patches marked on the monitored surface. The set of control halftone dot representations is updated based on the measured marking densities and the nominal marking densities.
摘要翻译： 控制标记装置以从一组图像半色调点表示中选择的半色调点来标记介质纸。 控制标记装置以从一组控制半色调点表示中选出的半色调点来标记被监视的表面以形成不同标称标记密度的测试贴片。 使用密度传感器获取测量的标记密度，用于在被监测表面上标记的测试贴片。 基于测量的标记密度和标称标记密度来更新控制半色调点表示的集合。
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公开(公告)号：US20090296175A1
公开(公告)日：2009-12-03
申请号：US12127221
申请日：2008-05-27
IPC分类号： H04N1/46
CPC分类号： H04N1/6033
摘要： A marking device is controlled to mark a media sheet with halftone dots selected from a set of image halftone dot representations. The marking device is controlled to mark a monitored surface with halftone dots selected from a set of control halftone dot representations to form test patches of different nominal marking densities. Measured marking densities are acquired using a density sensor for the test patches marked on the monitored surface. The set of control halftone dot representations is updated based on the measured marking densities and the nominal marking densities.
摘要翻译： 控制标记装置以从一组图像半色调点表示中选择的半色调点来标记介质纸。 控制标记装置以从一组控制半色调点表示中选出的半色调点来标记被监视的表面以形成不同标称标记密度的测试贴片。 使用密度传感器获取测量的标记密度，用于在被监测表面上标记的测试贴片。 基于测量的标记密度和标称标记密度来更新控制半色调点表示的集合。
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3.发明授权Systems and methods for in situ setting charge voltages in a dual recharge system 失效用于在双重充电系统中原位设置充电电压的系统和方法公开(公告)号：US06970662B2
公开(公告)日：2005-11-29
申请号：US10707576
申请日：2003-12-22
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G2215/026
摘要： Systems and methods for measuring and setting grid voltages in an image forming device may include setting a first charging device of a first image forming station to a first voltage level and setting a second charging device of the first image forming station to be off; charging a charge-retentive surface with the first charging device set at the first voltage level; measuring and the charge imparted to the charge-retentive surface by the first charging device; storing the measured charge value. Systems and methods may further include repeating the setting, charging, measuring and storing steps for the first charging device for at least one additional voltage level; and determining at least one parameter of the first charging device based on the stored measured charge values for the first charging device for each voltage level.
摘要翻译： 用于测量和设置图像形成装置中的电网电压的系统和方法可以包括将第一图像形成站的第一充电装置设置为第一电压电平并将第一图像形成站的第二充电装置设置为关闭; 在所述第一充电装置设置在所述第一电压电平下对充电保持表面充电; 通过第一充电装置测量和赋予电荷保持表面的电荷; 存储测量的电荷值。 系统和方法可以进一步包括对于至少一个附加电压电平重复第一充电装置的设置，充电，测量和存储步骤; 以及基于针对每个电压电平的所述第一充电装置的存储的测量电荷值来确定所述第一充电装置的至少一个参数。
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公开(公告)号：US08164788B2
公开(公告)日：2012-04-24
申请号：US12190695
申请日：2008-08-13
申请人： Shen-Ge Wang , David C. Craig , Fan Shi
发明人： Shen-Ge Wang , David C. Craig , Fan Shi
CPC分类号： H04N1/4078 , H04N1/4055
摘要： What is disclosed is a system and method for efficiently and accurately estimating the complete TRC for a color marking device equipped with a multi-center cluster halftone screen which has a similar halftone tiling geometry and a similar growth specified by a corresponding single-center cluster halftone screen. The present method introduces a cluster-based printer model which establishes a relationship between a color output of a single-center cluster halftone screen and a color output of a multi-center cluster halftone screen. The present cluster-based printer model determines the complete TRC for the multi-center cluster halftone screen using the measurements for the single-center cluster halftone screen. Results of halftone dot linearization with different printing devices demonstrates that high accuracy can be achieved using the reduced measurements from the single-center cluster halftone screen. The present method finds its uses in characterization processes for a wide variety of color marking devices known in the arts.
摘要翻译： 所公开的是用于有效和准确地估计配备有多中心集群半色调屏幕的彩色标记设备的完整TRC的系统和方法，其具有类似的半色调平铺几何形状和由对应的单中心集群半色调指定的类似增长 屏幕。 本方法引入基于群集的打印机模型，该模型建立了单中心群集半色调屏幕的颜色输出与多中心群集半色调屏幕的颜色输出之间的关系。 目前基于群集的打印机型号使用单中心集群半色调屏幕的测量来确定多中心集群半色调屏幕的完整TRC。 使用不同打印设备的半色调点线性化的结果表明，使用来自单中心集群半色调屏幕的减少的测量可以实现高精度。 本方法在用于本领域已知的各种颜色标记装置的表征过程中发现其用途。
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5.发明授权Tone reproduction curve (TRC) target adjustment strategy for actuator set points and color regulation performance trade off 有权色调再现曲线（TRC）目标调节策略，用于执行器设定点和色彩调节性能折衷公开(公告)号：US07239819B2
公开(公告)日：2007-07-03
申请号：US11117545
申请日：2005-04-29
申请人： Eric M. Gross , Fan Shi , Mark S. Jackson
发明人： Eric M. Gross , Fan Shi , Mark S. Jackson
IPC分类号： G03G15/00
CPC分类号： G03G15/5041
摘要： A method of controlling an actuator includes determining a function of an actuator value based on a cost function index that represents a relationship between a tone reproduction curve error and the actuator value necessary to achieve a tone reproduction curve target, determining an actual tone reproduction curve error from an obtained sample of a tone reproduction curve and controlling the actuator based on the function and actual tone reproduction curve error to move to a point that represents the tone reproduction curve target. A Xerographic system includes an actuator, an input device that inputs the cost function index and a controller that controls the Xerographic system to obtain the sample, determine an actual tone reproduction curve error from the sample, and control the actuator based on the cost function index and the actual tone reproduction curve error to move to a point that represents the tone reproduction curve target.
摘要翻译： 控制致动器的方法包括：基于代表音色再现曲线误差与实现色调再现曲线目标所需的致动器值之间的关系的成本函数指标确定致动器值的函数，确定实际色调再现曲线误差 根据所获得的色调再现曲线的样本，并且基于功能和实际色调再现曲线误差来控制致动器，以移动到表示色调再现曲线目标的点。 静电复印系统包括执行器，输入成本函数索引的输入装置和控制静电复印系统以获取样品的控制器，确定样品的实际色调再现曲线误差，并根据成本函数指数控制执行器 和实际的色调再现曲线误差移动到表示色调再现曲线目标的点。
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6.发明申请Tone reproduction curve (TRC) target adjustment strategy for actuator set points and color regulation performance trade off 有权色调再现曲线（TRC）目标调节策略，用于执行器设定点和色彩调节性能折衷公开(公告)号：US20060245773A1
公开(公告)日：2006-11-02
申请号：US11117545
申请日：2005-04-29
申请人： Eric Gross , Fan Shi , Mark Jackson
发明人： Eric Gross , Fan Shi , Mark Jackson
IPC分类号： G03G15/00
CPC分类号： G03G15/5041
摘要： A method of controlling an actuator includes determining a function of an actuator value based on a cost function index that represents a relationship between a tone reproduction curve error and the actuator value necessary to achieve a tone reproduction curve target, determining an actual tone reproduction curve error from an obtained sample of a tone reproduction curve and controlling the actuator based on the function and actual tone reproduction curve error to move to a point that represents the tone reproduction curve target. A Xerographic system includes an actuator, an input device that inputs the cost function index and a controller that controls the Xerographic system to obtain the sample, determine an actual tone reproduction curve error from the sample, and control the actuator based on the cost function index and the actual tone reproduction curve error to move to a point that represents the tone reproduction curve target.
摘要翻译： 控制致动器的方法包括：基于代表音色再现曲线误差与实现色调再现曲线目标所需的致动器值之间的关系的成本函数指标来确定致动器值的函数，确定实际色调再现曲线误差 根据所获得的色调再现曲线的样本，并且基于功能和实际色调再现曲线误差来控制致动器，以移动到表示色调再现曲线目标的点。 静电复印系统包括执行器，输入成本函数索引的输入装置和控制静电复印系统以获取样品的控制器，确定样品的实际色调再现曲线误差，并根据成本函数指数控制执行器 和实际的色调再现曲线误差移动到表示色调再现曲线目标的点。
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公开(公告)号：US20120213115A1
公开(公告)日：2012-08-23
申请号：US13504484
申请日：2010-07-01
IPC分类号： H04W24/00
CPC分类号： H04L25/0244 , H04L25/0204 , H04L25/0212 , H04L25/0222
摘要： The present invention discloses a channel estimation method and device in a multi-antenna system. The method includes: obtaining the original channel estimation value of each array element of an array antenna for each uplink user received by the antenna; converting them into a channel estimation matrix; dividing the channel estimation matrix into an amplitude matrix and a phase matrix; grouping the elements of each array element at the same tap location in the amplitude matrix together for signal transformation processing and performing transform domain noise reduction to the high-frequency portion of the obtained transform domain data; inversely transforming the noise-reduced data to a noise-reduced amplitude matrix; and combining the noise-reduced amplitude matrix with the phase matrix into a restored channel estimation matrix, wherein the amplitude of each channel estimation value of the restored channel estimation matrix has undertaken a multi-antenna transform domain noise reduction process.
摘要翻译： 本发明公开了一种多天线系统中的信道估计方法及装置。 该方法包括：获取由天线接收的每个上行用户的阵列天线的每个阵列元素的原始信道估计值; 将其转换为信道估计矩阵; 将信道估计矩阵除以幅度矩阵和相位矩阵; 将每个阵列元素的元素分组在振幅矩阵中的相同抽头位置处，用于信号变换处理，并对所获得的变换域数据的高频部分执行变换域噪声降低; 将噪声降低的数据逆变换为降噪幅度矩阵; 并将降噪幅度矩阵与相位矩阵组合成恢复的信道估计矩阵，其中恢复的信道估计矩阵的每个信道估计值的幅度进行了多天线变换域噪声降低处理。
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公开(公告)号：US08798569B2
公开(公告)日：2014-08-05
申请号：US13504484
申请日：2010-07-01
CPC分类号： H04L25/0244 , H04L25/0204 , H04L25/0212 , H04L25/0222
摘要： The present invention discloses a channel estimation method and device in a multi-antenna system. The method includes: obtaining the original channel estimation value of each array element of an array antenna for each uplink user received by the antenna; converting them into a channel estimation matrix; dividing the channel estimation matrix into an amplitude matrix and a phase matrix; grouping the elements of each array element at the same tap location in the amplitude matrix together for signal transformation processing and performing transform domain noise reduction to the high-frequency portion of the obtained transform domain data; inversely transforming the noise-reduced data to a noise-reduced amplitude matrix; and combining the noise-reduced amplitude matrix with the phase matrix into a restored channel estimation matrix, wherein the amplitude of each channel estimation value of the restored channel estimation matrix has undertaken a multi-antenna transform domain noise reduction process.
摘要翻译： 本发明公开了一种多天线系统中的信道估计方法及装置。 该方法包括：获取由天线接收的每个上行用户的阵列天线的每个阵列元素的原始信道估计值; 将其转换为信道估计矩阵; 将信道估计矩阵除以幅度矩阵和相位矩阵; 将每个阵列元素的元素分组在振幅矩阵中的相同抽头位置处，用于信号变换处理，并对所获得的变换域数据的高频部分执行变换域噪声降低; 将噪声降低的数据逆变换为降噪幅度矩阵; 并将降噪幅度矩阵与相位矩阵组合成恢复的信道估计矩阵，其中恢复的信道估计矩阵的每个信道估计值的幅度进行了多天线变换域噪声降低处理。
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