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公开(公告)号：US5274316A
公开(公告)日：1993-12-28
申请号：US695828
申请日：1991-05-06
申请人： Stuart G. Evans , William G. Irwin
发明人： Stuart G. Evans , William G. Irwin
CPC分类号： H02P8/04
摘要： A method for generating stepper motor ramps and analyzing the motor torque required compared with the motor torque available wherein the generated ramp accelerates the motor as fast as possible while maintaining a user settable torque safety factor and/or safety margin. The method uses the minimum available stepper motor torque at the current motor speed to ultimately compute the maximum useable acceleration, uses the maximum acceleration to generate the next motor step time and hence the next motor velocity, computes the next velocity from the desired acceleration and the previous velocity and utilizes friction during deceleration of the motor. In particular, the method comprises determining the minimum available torque using the current motor velocity and the torque-speed characteristic of the motor, applying to the available torque a safety factor and then a safety margin to determine maximum useable torque wherein the safety factor is derived from motor information and the safety margin is derived from system information, calculating the maximum acceleration using the friction and moment of inertia of the system and the maximum usable motor torque, calculating the time duration of the next step for advancing the motor, repeating the foregoing steps to determine all steps in the ramps, and utilizing the generated motor ramps in advancing the stepper motor. The generated ramp always exploits the full drive capability of the stepper motor, and it provides a relatively constant margin between available torque and required torque during both acceleration and deceleration of the motor.
摘要翻译： 一种用于产生步进电动机斜坡并分析与可用的电动机转矩相比所需的电动机转矩的方法，其中所产生的斜坡在保持用户可设定的转矩安全系数和/或安全裕度的同时尽可能快地加速电动机。 该方法使用当前电动机速度下的最小可用步进电机转矩来最终计算最大可用加速度，使用最大加速度来产生下一个电动机步进时间，因此下一个电动机速度根据期望的加速度计算下一个速度， 以前的速度，并在电机减速期间利用摩擦。 特别地，该方法包括使用当前电动机速度和电动机的转矩 - 速度特性来确定最小可用转矩，将可用转矩应用于安全系数，然后应用安全裕度来确定最大可用转矩，其中安全因子得到 从电机信息和安全裕度由系统信息导出，使用系统的摩擦和转动惯量和最大可用电机转矩计算最大加速度，计算用于推进电机的下一步骤的持续时间，重复上述 确定斜坡中的所有步骤的步骤，以及利用所产生的马达斜坡来推进步进马达。 所产生的斜坡总是利用步进电机的全驱动能力，并且在电动机的加速和减速期间在可用转矩和所需转矩之间提供相对恒定的裕量。
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公开(公告)号：US07852359B2
公开(公告)日：2010-12-14
申请号：US11931266
申请日：2007-10-31
申请人： Stuart G. Evans , Robert F. Mindler
发明人： Stuart G. Evans , Robert F. Mindler
CPC分类号： B41M7/0027 , B41M5/38271 , B41M2205/02 , B41M2205/40
摘要： Observable matte-finish indicia on a printer medium having a matte finish includes the steps creating a matte image-viewing area; creating a glossy finish region within the image-viewing area; creating indicia having a matte finish within the glossy region. The printing medium has a dye-receiving element; and the steps of controlling the specularity of the image-viewing area, the glossy region, and the indicia include the step of imagewise-heating a donor element comprising a support having thereon a laminating patch of overcoat material, the donor being in contact with the dye-receiving element to thereby thermally transfer a layer of overcoat material to the printing medium, the overcoat material layer being transferred using a predetermined energy level within the image-viewing area and the indicia in order to create a matte finish and using a different energy level within the glossy region to create a gloss finish.
摘要翻译： 具有无光泽处理的打印介质上的可观察到的无光泽标记包括产生无光泽图像观看区域的步骤; 在图像观看区域内形成光泽的区域; 在光泽区域内形成无光泽的标记。 打印介质具有染料接收元件; 并且控制图像观看区域，光泽区域和标记的镜面反应的步骤包括成像加热供体元件的步骤，该供体元件包括其上具有覆盖层材料层压贴片的支撑体，供体与 染料接收元件，从而将一层外涂层材料热转移到打印介质上，外涂层材料层在图像观看区域和标记之内使用预定的能级转移，以便产生无光泽的表面并使用不同的能量 在光泽区域内形成光泽度。
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公开(公告)号：US20090111037A1
公开(公告)日：2009-04-30
申请号：US11931266
申请日：2007-10-31
申请人： Stuart G. Evans , Robert F. Mindler
发明人： Stuart G. Evans , Robert F. Mindler
IPC分类号： G03C5/00
CPC分类号： B41M7/0027 , B41M5/38271 , B41M2205/02 , B41M2205/40
摘要： Observable matte-finish indicia on a printer medium having a matte finish includes the steps creating a matte image-viewing area; creating a glossy finish region within the image-viewing area; creating indicia having a matte finish within the glossy region. The printing medium has a dye-receiving element; and the steps of controlling the specularity of the image-viewing area, the glossy region, and the indicia include the step of imagewise-heating a donor element comprising a support having thereon a laminating patch of overcoat material, the donor being in contact with the dye-receiving element to thereby thermally transfer a layer of overcoat material to the printing medium, the overcoat material layer being transferred using a predetermined energy level within the image-viewing area and the indicia in order to create a matte finish and using a different energy level within the glossy region to create a gloss finish.
摘要翻译： 具有无光泽处理的打印介质上的可观察到的无光泽标记包括产生无光泽图像观看区域的步骤; 在图像观看区域内形成光泽的区域; 在光泽区域内形成无光泽的标记。 打印介质具有染料接收元件; 并且控制图像观看区域，光泽区域和标记的镜面反应的步骤包括成像加热供体元件的步骤，该供体元件包括其上具有覆盖层材料层压贴片的支撑体，供体与 染料接收元件，从而将一层外涂层材料热转移到打印介质上，外涂层材料层在图像观看区域和标记之内使用预定的能级转移，以便产生无光泽的表面并使用不同的能量 在光泽区域内形成光泽度。
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公开(公告)号：US5402957A
公开(公告)日：1995-04-04
申请号：US150330
申请日：1993-11-09
申请人： Stuart G. Evans
发明人： Stuart G. Evans
IPC分类号： B65H23/188 , B65H23/04 , G03B27/58 , G11B15/56 , B65H59/38
CPC分类号： G03B27/587 , B65H23/044 , G11B15/56
摘要： A nonlinear feedback positioning system that maintains relatively uniform tension in a web that travels between a reel and a drive at a position that is between the reel and the drive. The feedback system is designed to maintain a web loop at relatively uniform length and regulate the tension that is applied to the web that is wound on the reel.
摘要翻译： 一种非线性反馈定位系统，其在卷轴和驱动器之间在卷轴和驱动器之间的位置处在卷筒和传动装置之间保持相对均匀的张力。 反馈系统被设计成在相对均匀的长度上保持卷筒纸环，并且调节施加到缠绕在卷轴上的幅材上的张力。
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公开(公告)号：US07271935B2
公开(公告)日：2007-09-18
申请号：US11352056
申请日：2006-02-10
CPC分类号： H04N1/6033 , G03G15/5062 , G03G2215/00063 , G03G2215/0164 , H04N1/6036
摘要： Printers and methods for operating a printer are provided. One method comprises receiving a print order associated with image data for use in printing a plurality images; converting the image data into actions to print the plurality of images on a receiver medium with print adjacent areas between the printed images, the converting being performed in accordance with printer settings; printing a first set of color patches in the print adjacent areas when the each of the first set of calibration color patches can be printed in the print adjacent areas; printing a second set of color patches in the print adjacent areas when each of the first set of color patches cannot be printed in the print adjacent areas; and sensing the color of each printed color patch and recalibrating the printer settings based upon the sensed colors.
摘要翻译： 提供打印机和操作打印机的方法。 一种方法包括接收与用于打印多个图像的图像数据相关联的打印指令; 将图像数据转换成在接收介质上打印多个图像的动作，其中打印图像之间具有打印相邻区域，转换根据打印机设置执行; 当所述第一组校准色块中的每一个可以打印在所述打印相邻区域中时，在所述打印相邻区域中打印第一组色块; 当第一组色块中的每一个不能在打印相邻区域中打印时，在打印相邻区域中打印第二组色块; 并感测每个打印的色块的颜色，并根据感测到的颜色重新校准打印机设置。
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公开(公告)号：US5317139A
公开(公告)日：1994-05-31
申请号：US963961
申请日：1992-10-20
申请人： Stuart G. Evans , John E. Morse , Thomas C. Jessop
发明人： Stuart G. Evans , John E. Morse , Thomas C. Jessop
CPC分类号： G06K7/14 , G03B27/462 , G03B2206/006
摘要： An optical bar code reader includes a pair of clock sensors and a pair of data sensors for respectively reading the data track and clock track of the optical bar code. The data track sensors are offset from the clock track sensors and the data and clock track sensors detect changes at the edges of the bars in the optical code.
摘要翻译： 光学条形码读取器包括一对时钟传感器和一对数据传感器，用于分别读取光学条形码的数据轨道和时钟轨道。 数据轨道传感器偏离时钟轨迹传感器，数据和时钟轨迹传感器检测光学代码中条形边缘的变化。
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