公开(公告)号：US6104841A

公开(公告)日：2000-08-15

申请号：US564809

申请日：1995-11-29

申请人： Yu Tojo ,  Takahiro Hideshima ,  Akira Ichizuka ,  Kazuteru Kowada

发明人： Yu Tojo ,  Takahiro Hideshima ,  Akira Ichizuka ,  Kazuteru Kowada

IPC分类号： G03B21/11 ,  G06K9/32 ,  G06T1/00 ,  G06T3/40 ,  H04N1/04 ,  H04N1/17 ,  H04N1/393

CPC分类号： H04N1/393 ,  G06T3/0006

摘要： An image is read by moving a line sensor relative to the image in a subsidiary scanning direction perpendicular to the direction of a pixels array of the line sensor. An image processor receives image signals from the sensor and produces an output image magnified relative to the image in accordance with a magnification ratio. The magnification ratio falls into one of n contiguous magnification ratio ranges between a reference magnification ratio and a minimum magnification ratio. The moving speed of the sensor relative to the image is set as a function of the magnification ratio such that, within each magnification ratio range i, for i=2 to n, the moving speed of the sensor decreases from a maximum speed at a lowest magnification ratio in the magnification ratio range to the maximum speed decreased by 1/i at a highest magnification ratio in the magnification ratio range, and, for i=1, the moving speed of the sensor decreases from the maximum speed at a lowest magnification ratio in the magnification ratio range to a reference speed at a highest magnification ratio in the magnification ratio range.

摘要翻译： 通过在垂直于线传感器的像素阵列的方向的辅助扫描方向上相对于图像移动线传感器来读取图像。 图像处理器从传感器接收图像信号，并根据放大率产生相对于图像放大的输出图像。 放大率成为参考倍率和最小放大率之间的n个连续放大率范围之一。 传感器相对于图像的移动速度被设定为放大率的函数，使得在每个放大率范围i内，对于i = 2到n，传感器的移动速度从最低速度降低 在放大率范围内，以最高倍率的倍率范围内的放大率范围与最大速度的倍率相比减小1 / i，对于i = 1，传感器的移动速度以最低放大率的最大速度降低 在放大率范围内，以放大率范围内的最高放大率的基准速度。

公开(公告)号：US4718618A

公开(公告)日：1988-01-12

申请号：US908501

申请日：1986-09-17

申请人： Akira Ichizuka

发明人： Akira Ichizuka

IPC分类号： G03B21/11 ,  G03B1/04

CPC分类号： G03B21/113

摘要： In a film reader system in which a film provided with a leader film having a width wider than the width of end flanges of a reel around which the film is wound is wound up around another reel, when a wind-back motor is driven at high speed to wind back around the first mentioned wind-back reel, the leader film is detected by a pair of pinch rollers on the way of the film travelling. Upon the detection, the wind-back motor is electrically braked and the wind-up motor is reversely driven at high speed in the film wind-back direction to release the leader film from the wind-back reel. The wind-back and wind-up motors are then driven in synchronized manner at low speed in the film wind-back direction and the wind-back motor is again driven at high speed upon the detection of the leader film passing the detecting pinch rollers.

摘要翻译： 在其中设置有宽度大于卷绕有卷轴的卷轴的端部凸缘宽度的引导膜的膜卷绕在另一个卷轴上的情况下，当回风马达高速驱动时 速度回绕到首先提到的回卷卷轴上，导片通过胶片行进路上的一对夹送辊检测。 在检测时，回风电机被电制动，并且卷绕电机在膜回卷方向上以高速反向驱动，以从引导卷轴释放引导膜。 然后在薄膜回卷方向上以低速同步地驱动回风和卷绕电动机，并且当检测到通过检测夹送辊的引导膜时，回风电机再次高速驱动。