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1.发明授权Method and apparatus for creating color copies of an original by an electrostatic charging process 失效通过静电充电过程产生原稿的彩色副本的方法和装置
公开(公告)号：US4007489A
公开(公告)日：1977-02-08
申请号：US614786
申请日：1975-09-19
申请人： Josef Helmberger , Wolfgang Ruf
发明人： Josef Helmberger , Wolfgang Ruf
CPC分类号： H04N1/506 , G03G15/0142
摘要： An original is sampled line-by-line at a predetermined number of points along each line and sampling signals indicative of the density of the original in each of three colors are furnished while electrographic paper or film is transported past a first, second and third recording station. At each recording station a line of electrodes having a length exceeding the width of the copy to be made and exceeding in number the number of sampling points of the original along each line extends in a direction perpendicular to the direction of transport of the paper. A mark on the paper is sensed at each station and the deviation of the position of the mark from a desired position in the line direction determines which electrode will be used to start the recording of the line. In the direction of transport, the deviation of the position of said mark from a desired position is sensed and the start of the line recording varied in time in accordance therewith.
摘要翻译： 原稿沿着每条线在预定数量的点逐行采样，并且提供指示三种颜色中的每一种的原稿的浓度的采样信号，同时电子照相纸或胶片经过第一，第二和第三记录 站。 在每个记录站处，电极线的长度超过要制作的副本的宽度并且超过数量，原稿沿着每条线的采样点的数量在垂直于纸张的传送方向的方向上延伸。 在每个站点处检测到纸上的标记，并且标记的位置与行方向上的期望位置的偏差确定将使用哪个电极开始记录线。 在传送方向上，检测到所述标记的位置与期望位置的偏差，并且线记录的开始在时间上随之变化。
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公开(公告)号：US4031550A
公开(公告)日：1977-06-21
申请号：US661333
申请日：1976-02-25
CPC分类号： H04N3/38
摘要： For reproduction on a television receiver, movie film is moved continuously past a scanning region. Each image is scanned three times in direction opposite to film motion, the starting point of each scan being displaced one-third of image height in direction of motion of film.
摘要翻译： 为了在电视接收机上再现，电影胶片连续移动经过扫描区域。 每个图像在与胶片运动相反的方向扫描三次，每个扫描的起始点在胶片的运动方向上移位图像高度的三分之一。
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公开(公告)号：US3984187A
公开(公告)日：1976-10-05
申请号：US549683
申请日：1975-02-13
CPC分类号： G03B27/725
摘要： An original bears a pictorial image, or the like. The original is illuminated with first and second light and the image on the original is projected onto a copy carrier. The spatial variation of the intensity of the first light after the first light has been modulated in intensity by the image on the original is detected. The contrast of the image projected onto the copy carrier compared to the contrast of the image on the original is changed by changing the spatial variation of the second light in dependence upon the detected spatial variation of the intensity of the modulated first light.
摘要翻译： 一个原始的照片是一个图形，或者像。 原件用第一和第二个光照亮，原稿上的图像投影到复印机上。 检测第一光之后的第一光的强度的空间变化，通过原稿上的图像强度调制。 通过根据检测到的调制的第一光的强度的空间变化来改变第二光的空间变化，改变投影到拷贝载体上的与原始图像的对比度相比的图像的对比度。
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4.发明授权Method and equipment for line-by-line recording of color component images on a reproduction carrier 失效在再现载体上逐行记录彩色分量图像的方法和设备
公开(公告)号：US4017891A
公开(公告)日：1977-04-12
申请号：US611976
申请日：1975-09-10
申请人： Josef Helmberger , Klaus Stadler
发明人： Josef Helmberger , Klaus Stadler
CPC分类号： H04N1/506 , G03G15/0142
摘要： A first, second and third color component image are each recorded line-by-line on a reproduction carrier during scanning of the original as the reproduction carrier is transported past a first, second and third recording station respectively. The recording is achieved by an intensity modulated beam deflected in a direction perpendicular to the direction of transport. To superimpose the second and third color component image exactly onto the first color component image, a mark is created either at the first recording station or prior to the time the reproduction carrier arrives at the first recording station. The mark is sensed at least at the second and third recording station and a sawtooth generator started when the mark is sensed and stopped with the vertical trigger pulse of the beam deflection system used to adjust the position of the beam in the direction of transport of the reproduction carrier. In the line direction the starting position of the beam is controlled by a position signal having an amplitude corresponding to the distance in the horizontal direction between the mark and the start of a line of the first color component image.
摘要翻译： 分别在再现载体经过第一，第二和第三记录台传输原稿的扫描期间，在再现载体上逐行记录第一，第二和第三颜色分量图像。 通过在垂直于运输方向的方向上偏转的强度调制光束实现记录。 为了将第二和第三颜色分量图像精确地叠加到第一颜色分量图像上，在第一记录站或在再现载体到达第一记录站之前创建标记。 至少在第二和第三记录站处检测到标记，并且当标记被感测并停止时，锯齿波发生器开始，并且用于使用用于调整光束在传送方向上的光束位置的光束偏转系统的垂直触发脉冲 复制载体。 在线方向上，光束的起始位置由具有对应于第一颜色分量图像的标记和行的开始之间的水平方向上的距离的幅度的位置信号控制。
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公开(公告)号：US3965291A
公开(公告)日：1976-06-22
申请号：US384396
申请日：1973-08-01
CPC分类号： H04N3/38
摘要： For reproduction on a television receiver, movie film is moved continuously past a scanning region. Each image is scanned three times in direction opposite to film motion, the starting point of each scan being displaced one-third of image height in direction of motion of film.
摘要翻译： 为了在电视接收机上再现，电影胶片连续移动经过扫描区域。 每个图像在与胶片运动相反的方向扫描三次，每个扫描的起始点在胶片的运动方向上移位图像高度的三分之一。
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6.发明授权
公开(公告)号：US4605954A
公开(公告)日：1986-08-12
申请号：US605494
申请日：1984-04-30
CPC分类号： H04N1/6027 , H04N9/68
摘要： An image to be printed in a CRT or video color printer is sensed to generate red, blue and green signals respectively representing a characteristic of the image in red, blue and green. The signals are processed in a matrix circuit to generate a luminance signal. The red and blue signals are subtracted from the luminance signal in operational amplifiers to obtain unadjusted difference signals. Each of the unadjusted difference signals is multiplied by an adjusting factor which is established using variable resistors and functions to provide level adjustment. The adjusted difference signals obtained in this manner are subtracted from the luminnce signal in respective operational amplifiers to yield modified red and blue signals. The modified red and blue signals are processed together with the luminanace signal in a second matrix circuit to generate a modified green signal. Control of color saturation may be achieved simply and inexpensively by adjusting the variable resistors and thereby changing the adjusting factor which determines color saturation.
摘要翻译： 感测要在CRT或视频彩色打印机中打印的图像，以产生分别表示红色，蓝色和绿色图像特征的红色，蓝色和绿色信号。 在矩阵电路中处理信号以产生亮度信号。 在运算放大器中从亮度信号中减去红色和蓝色信号，以获得未调整的差分信号。 每个未调整的差分信号乘以使用可变电阻器建立的调整因子和用于提供电平调整的功能。 从各运算放大器中的亮度信号中减去以这种方式获得的经调整的差分信号，以产生修改的红色和蓝色信号。 修改的红色和蓝色信号与第二矩阵电路中的亮度信号一起被处理以产生修改的绿色信号。 彩色饱和度的控制可以通过调节可变电阻器简单且廉价地实现，从而改变确定色彩饱和度的调节因子。
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公开(公告)号：US4066355A
公开(公告)日：1978-01-03
申请号：US674632
申请日：1976-04-07
申请人： Josef Helmberger , Klaus Stadler
发明人： Josef Helmberger , Klaus Stadler
CPC分类号： H04N1/488 , A61B17/32056 , H04N9/11
摘要： An original bearing a multicolor image is displaced in a transverse direction passed a scanning location and a strip extending transverse to this direction on the original is irradiated with a white light for a predetermined time period. During this time period a plurality of different color-component strips are optically derived each corresponding to a respective color component of the irradiated strip and each of these color component strips is applied to a respective solid-state transducer. A row of photodiodes in the transducer charges up respective capacitors therein during the scanning time period and the charges in these capacitors are read out seriatim and fed to respective scribers which reproduce the respective color component of the image on the original on the copy sheet. Dichroic mirrors tippable about axes parallel to the irradiated strip on the original are employed to pick off the separate color components.
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