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公开(公告)号：US06412907B1
公开(公告)日：2002-07-02
申请号：US09768707
申请日：2001-01-24
IPC分类号： A41J3407
CPC分类号： B41J11/46
摘要： An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.
摘要翻译： 提供了一种用于使用光学传感器来确定打印装置相对于一张纸或纸张处理表面的位置的装置和方法。 光学传感器读取标记以检测纸张上的移动和/或移动方向或印记的间隔。 优点包括条纹拼接校准，颜色到颜色配准，产生打印设备对准数据和生成打印设备点火信号的信息。 本发明可应用于广泛的印刷技术领域，包括但不限于声学油墨印刷，热喷墨印刷，压电喷墨印刷，离子印刷以及涉及需要定位印刷的各种其它印刷技术 相对于一张纸。
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公开(公告)号：US06336019B1
公开(公告)日：2002-01-01
申请号：US09450375
申请日：1999-11-29
申请人： Vittorio Castelli , Barry Wolf , Robert Lofthus , Harold Anderson
发明人： Vittorio Castelli , Barry Wolf , Robert Lofthus , Harold Anderson
IPC分类号： G03G1500
摘要： Systems and methods are provided that improve the registration between the color separation images. The systems and methods control the output of the image data for one or more of the color separation images and the velocity of an image-carrying member to remove or reduce registration offsets based on determined position and velocity of the image-carrying member. A position-determining sensor on an image-carrying member device module is used to determine the process-direction position of the image-carrying member to provide real time motion information by simultaneously sensing a plurality of position-determining marks. A position-determining controller determines the process-direction position of the image-carrying member by detecting the plurality of position-determining marks using the position-determining sensor and averaging or correlating the detected data.
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3.发明授权
公开(公告)号：US5150115A
公开(公告)日：1992-09-22
申请号：US627207
申请日：1990-12-13
申请人： Joannes N. M. deJong , Meng H. Lean , Barry Wolf , John J. Ricciardelli , Stuart A. Schweid , Robert M. Lofthus
发明人： Joannes N. M. deJong , Meng H. Lean , Barry Wolf , John J. Ricciardelli , Stuart A. Schweid , Robert M. Lofthus
CPC分类号： G01D5/2451 , H03M1/645
摘要： An inductive-type rotary encoder includes a stator having at least one conductive pattern on one side thereof, and a rotor having another conductive pattern on one side thereof which faces the at least one conductive pattern of the stator. The conductive patterns are inductively coupled to one another so as to generate an output signal indicative of the angular position of the rotor relative to the stator. In order to reduce the overall size and number of parts required, the circuitry for energizing the stator conductive pattern(s) and for generating the output signal can be provided on a printed circuit board, the opposite side of which contains the at least one stator conductive pattern. In order to reduce noise as well as to reduce the first harmonic error, lead lines for attaching the stator and rotor conductive patterns to the controlling circuitry and a return line which extends along substantially the entire length of the rotor or stator conductive patterns and attaches to one of the lead lines are provided and specially located relative to undulations of the conductive patterns. Additionally, the length of spokes which define undulations of the respective rotor and stator conductive patterns can be controlled to improve the performance of the rotary encoder. A rotary encoder including inductively coupled rotor and stator conductive patterns for generating a relative angular position (or rotary speed) of the rotor relative to the staator, as well as stator and rotor index pulse patterns inductively coupled for generating an index pulse once per revolution of the rotor relative to the stator is also provided.
摘要翻译： 电感型旋转编码器包括：定子，其一侧具有至少一个导电图案，转子在其一侧具有面向定子的至少一个导电图案的导电图案。 导电图案彼此感应耦合，以产生指示转子相对于定子的角位置的输出信号。 为了减小所需部件的总体尺寸和数量，可以在印刷电路板上提供用于激励定子导电图案并用于产生输出信号的电路，其相对的侧面包含至少一个定子 导电图案。 为了降低噪声以及降低一次谐波误差，用于将定子和转子导电图案连接到控制电路的引线和沿着转子或定子导电图案的大致整个长度延伸的返回线，并附接到 提供引线之一并且相对于导电图案的起伏特别定位。 此外，可以控制限定相应转子和定子导电图案的起伏的轮辐的长度，以改善旋转编码器的性能。 一种旋转编码器，包括电感耦合的转子和定子导电图案，用于产生转子相对于定标器的相对角位置（或转速）以及感应耦合的定子和转子折射率脉冲图案，用于每转一次产生索引脉冲 还提供了相对于定子的转子。
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公开(公告)号：US5138564A
公开(公告)日：1992-08-11
申请号：US560813
申请日：1990-07-31
申请人： Joannes N. M. de Jong , Barry Wolf
发明人： Joannes N. M. de Jong , Barry Wolf
CPC分类号： H03M1/1047 , G01D18/002 , G01P21/02 , H03M1/308
摘要： A method and apparatus provides on-line calibration of low cost encoders by interfacing an encoder with a microprocessor and driving a shaft to which the encoder is attached at a slow constant speed and at a fast constant speed. Data is collected by the microprocessor for the slow and fast speeds and a mathematical analysis is performed which determines the torque disturbances occurring at each point in the rotational cycle of the shaft and which further determines the actual location of each encoder line on the encoder in the rotational cycle of the shaft. By knowing the actual location of each encoder line and the number of counts between encoder lines for a given speed, a high accuracy encoder can be realized at a minimal cost.
摘要翻译： 一种方法和装置通过将编码器与微处理器接口并且以慢速恒定的速度和以恒定的速度驱动编码器附接的轴来提供低成本编码器的在线校准。 数据由微处理器收集用于缓慢和快速的速度，并且执行数学分析，其确定在轴的旋转周期中的每个点处发生的扭矩扰动，并进一步确定编码器中每个编码器线的实际位置 轴的旋转周期。 通过知道每个编码器线的实际位置和给定速度下编码器线之间的计数，可以以最小的成本实现高精度编码器。
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公开(公告)号：US5999758A
公开(公告)日：1999-12-07
申请号：US033152
申请日：1998-03-02
CPC分类号： B65H43/00 , G03G15/65 , G03G15/6529 , B65H2402/10 , B65H2513/40 , B65H2557/20 , G03G2215/00371
摘要： A method of controlling the movement of copy sheets along a copy sheet path by providing a target by a high level controller for the movement of copy sheets within the copy sheet path and controlling movement of copy sheets within segments of the copy sheet path. Movement in each segment is controlled by subcontrollers activating segment drives. Feedback data are conveyed to the high level controller and to other subcontrollers on the movement of copy sheets within segments of the copy sheet path and copy sheet movement is adjusted by the copy sheet drives of selected segments of the copy sheet path in order to achieve the target.
摘要翻译： 通过由高级别控制器提供目标来复制复印纸路径中的复印纸张的移动来控制复印纸沿着复印纸路径的移动的方法，并控制复印纸在复印纸路径的片段内的移动。 每个部分的运动由子控制器激活段驱动器控制。 反馈数据被传送到高级别控制器和其他副控制器上的副本纸张在复印纸路径的段内的移动，并且复印纸移动由复印纸路径的所选段的复印纸驱动器调整，以便实现 目标。
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