公开(公告)号：US06572011B1

公开(公告)日：2003-06-03

申请号：US09396499

申请日：1999-09-13

申请人： Andrew J. Allman ,  James E. Burton

发明人： Andrew J. Allman ,  James E. Burton

IPC分类号： G06F1700

CPC分类号： G09F11/29 ,  G09F11/295

摘要： A backlit display apparatus illuminates a film for displaying one or more images. The film has a series of frames and at least one mark printed on it corresponding to each frame. The marks provide information representative of frame position relative to the film or otherwise identifying the image displayed by the frame when illuminated. A light source, positioned behind the film relative to an intended viewer in front of the film, illuminates the frames. A detector detects the marks printed on the film as the film is advanced by a motor. An encoder associated with the motor detects the position of the frames as a function of the angular position of the motor when each mark on the film is detected. In response, the encoder generates a position signal representative of the detected positions of the frames. A processor controls the motor in response to the position signal to advance the film so that a selected frame is within the desired viewing area for a predetermined interval of time. The processor also provides a universal interface to other display apparatus or external devices.

摘要翻译： 背光显示装置照亮用于显示一个或多个图像的胶片。 该影片具有一系列帧和至少一个标记印在其上对应于每一帧。 标记提供表示相对于胶卷的帧位置的信息，或以其他方式识别当照亮时由帧显示的图像。 相对于胶片前面的预期观察者定位在胶片后面的光源照亮框架。 检测器通过电机检测胶片前进时印刷在胶片上的标记。 与电动机相关联的编码器在检测到胶片上的每个标记时，根据电机的角位置来检测框架的位置。 作为响应，编码器生成表示帧的检测位置的位置信号。 处理器响应于位置信号控制电动机以推进胶片，使得所选择的帧在期望的观看区域内达预定的时间间隔。 处理器还提供与其他显示设备或外部设备的通用接口。

公开(公告)号：US07012703B2

公开(公告)日：2006-03-14

申请号：US10645748

申请日：2003-08-21

申请人： Andrew J. Allman ,  James E. Burton ,  Richard D. Allman

发明人： Andrew J. Allman ,  James E. Burton ,  Richard D. Allman

IPC分类号： G01B11/14

CPC分类号： G01D5/24452 ,  G01D5/24457 ,  G05B19/401 ,  G05B2219/33157 ,  G05B2219/37136 ,  G05B2219/37155 ,  G05B2219/37175

摘要： The invention is a system and method for automatically determining a resolution of an encoder, automatically calibrating the encoder resolution, and automatically determining a length of a workpiece from the encoder resolution and encoder count. The system comprises an encoder for generating an encoder signal indicative of linear movement of a moving workpiece traveling along a path. The system also comprises a first sensor positioned along the path traveled by the workpiece, the first sensor generating a first sensor signal in response to sensing an identifying characteristic of the workpiece. The system further comprises a second sensor positioned along the path traveled by the workpiece, the second sensor generating a second sensor signal in response to sensing the identifying characteristic of the workpiece, said second sensor being positioned a known distance from the first sensor along the path traveled by the workpiece. The system also comprises a processor for determining the encoder resolution as a function of the encoder signal, the first sensor signal, the second sensor signal, and the known distance between the first and second sensors.

摘要翻译： 本发明是用于自动确定编码器的分辨率，自动校准编码器分辨率以及根据编码器分辨率和编码器计数自动确定工件长度的系统和方法。 该系统包括用于产生指示沿着路径行进的移动工件的线性移动的编码器信号的编码器。 该系统还包括沿着由工件移动的路径定位的第一传感器，第一传感器响应于感测工件的识别特性而产生第一传感器信号。 所述系统还包括沿着由所述工件移动的路径定位的第二传感器，所述第二传感器响应于感测所述工件的识别特性而生成第二传感器信号，所述第二传感器定位在距离所述路径的所述第一传感器已知距离 由工件行进。 该系统还包括用于根据编码器信号，第一传感器信号，第二传感器信号以及第一和第二传感器之间的已知距离确定编码器分辨率的处理器。