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公开(公告)号：US3878559A
公开(公告)日：1975-04-15
申请号：US35567273
申请日：1973-04-30
Applicant: CROSFIELD ELECTRONICS LTD
Inventor： PUGSLEY PETER C
Abstract: In making a reproduction of a coloured original, two or more colour separations are prepared in one scanning operation by circumferentially spacing around an output cylinder two or more films to be exposed (or other output surfaces to be treated) to form colour separations, and in each revolution of relative rotation between the cylinder and a reproducing head, the output of the reproducing head is modulated in turn with signals representing one line of each of the two or more separations. Subsequent lines are exposed or treated in subsequent revolutions until the last line of each separation has been scanned.
Abstract translation: 在再现彩色原稿时，通过在一个扫描操作中通过在输出圆筒周围间隔两个或更多个待曝光的薄膜（或待处理的其它输出表面）以形成分色来准备两个或更多个分色，并且 在圆筒和再现头之间的相对旋转的每一圈，再现头的输出依次表示代表两个或更多个分离中的每一个的一行的信号。 随后的行在随后的转动中暴露或处理，直到扫描每个分离的最后一行。
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Patent Agency Ranking
公开(公告)号：US3634611A
公开(公告)日：1972-01-11
申请号：US3634611D
申请日：1969-11-12
Applicant: CROSFIELD ELECTRONICS LTD
Inventor： PUGSLEY PETER C , DOBOUNEY MOUAYED EDOUARD
CPC classification number: H04N1/6027
Abstract: To reproduce colored images, color component signals generated by scanning an original are color corrected and then tone corrected and used to control the exposure of a sensitive surface. ''''Catchlights'''' are reproduced on an extended and nonlinear portion of the tone correction characteristic. To prevent the reproduction on this portion of the characteristic of signals which do not correspond to catchlights but which, through overcorrection in the color correction circuits, have a similar signal level, a catchlight detector circuit is connected in parallel with the color correction circuit so as to receive uncorrected color component signals and to modify the response of the tone correction circuit to a signal from the color correction circuit in the presence of a catchlight signal from the catchlight detector.
Abstract translation: 为了再现彩色图像，通过对原稿进行扫描生成的颜色分量信号进行颜色校正，然后进行色调校正，并用于控制敏感表面的曝光。 在色调校正特性的扩展和非线性部分上再现“Catchlights”。 为了防止在这一部分对不同于聚光灯的信号的特性进行再现，而通过颜色校正电路中的过度校正具有相似的信号电平，将聚光灯检测器电路与彩色校正电路并联连接，以便 接收未校正的颜色分量信号，并且在存在来自聚光灯检测器的聚光灯信号的情况下，修正色调校正电路对来自颜色校正电路的信号的响应。
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公开(公告)号：US3894178A
公开(公告)日：1975-07-08
申请号：US41542873
申请日：1973-11-13
Applicant: CROSFIELD ELECTRONICS LTD
Inventor： PUGSLEY PETER C
Abstract: In image reproduction, joins between different parts of a montage to be reproduced, or other defects in an image, are painted over with fluorescent paint. The image is then scanned with a normal aperture, point by point, to generate densityrepresenting signals and is additionally scanned with a larger aperture to generate further signals. A threshold circuit receiving these further signals is responsive to signals of a level such as to indicate the presence of fluorescent paint within the view of the larger aperture and is operative to substitute for the output of the normal-aperture scanner a signal of predetermined value representing white or a background colour. Thus the defect-representing signals are replaced by the background signals.
Abstract translation: 在图像再现中，将要再现的蒙太奇的不同部分或图像中的其他缺陷之间的连接用荧光漆涂漆。 然后逐点地以普通孔径扫描图像以产生密度表示信号，并且用更大的光圈附加地扫描以产生更多的信号。 接收这些其他信号的阈值电路响应于诸如在更大光圈的视野内指示荧光漆的存在的电平的信号，并且可操作地代替普通孔径扫描器的输出，表示预定值的信号 白色或背景颜色。 因此，缺陷表示信号被背景信号代替。
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公开(公告)号：US3893166A
公开(公告)日：1975-07-01
申请号：US46838574
申请日：1974-05-09
Applicant: CROSFIELD ELECTRONICS LTD
Inventor： PUGSLEY PETER C
CPC classification number: H04N1/4072 , H04N1/60 , H04N1/6025 , H04N1/648
Abstract: In the reproduction of a coloured original using a photoelectric scanner to derive colour component signals, corrected output values of the colour component signals are obtained from a store which has been loaded with corrected values in a preliminary operation by a computer programmed in accordance with a desired store input-output relationship and using preset parameter values.
Abstract translation: 在使用光电扫描仪再现彩色原稿以导出颜色分量信号时，通过根据以下程序编程的计算机在预备操作中已经加载了校正值的存储器获得了颜色分量信号的校正输出值 期望的存储输入 - 输出关系并使用预设参数值。
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公开(公告)号：US3875587A
公开(公告)日：1975-04-01
申请号：US36180473
申请日：1973-05-18
Applicant: CROSFIELD ELECTRONICS LTD
Inventor： PUGSLEY PETER C
CPC classification number: H04N1/0642 , H04N1/053 , H04N1/0657 , H04N1/0678 , H04N1/203 , H04N1/2036 , H04N1/207 , H04N1/508 , H04N2201/02416 , H04N2201/02439 , H04N2201/02443 , H04N2201/0404 , H04N2201/0471 , H04N2201/04724 , H04N2201/04732 , H04N2201/04734 , H04N2201/04755 , H04N2201/04768 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794 , H04N2201/04798
Abstract: In a method and apparatus of image reproduction in which a light-sensitive surface is scanned by a light beam modulated by a reproducing head in accordance with a signal representing the densities of successive image elements to be reproduced, a component of the scanning motion is obtained by mounting the light-sensitive surface on the non-rotating surface of a cylinder and rotating a portion of the reproducing head within the cylinder so as to define a circular track on the output surface during one revolution of the rotatable portion of the reproducing head. A rotatable prism having a plurality of internal reflecting surfaces, such as a pentaprism, may reflect the light beam and may move axially within the cylinder to provide the other component of scanning motion. The pentaprism is advantageous during the presence of rotational vibration. Additionally, a plurality of light-sensitive surfaces may be placed sequentially on the surface of the cylinder to form respective color separations.
Abstract translation: 在通过根据表示要再现的连续图像元素的密度的信号通过由再现头调制的光束来扫描感光表面的图像再现的方法和装置中，获得扫描运动的分量 通过将感光表面安装在圆筒的非旋转表面上，并使圆筒内的再现头部的一部分旋转，以便在再现头的可旋转部分的一转期间在输出表面上限定圆形轨道。 具有多个内反射表面（例如五棱镜）的可旋转棱镜可以反射光束并且可以在圆柱体内轴向移动以提供扫描运动的另一分量。 五棱镜在旋转振动的存在期间是有利的。 此外，多个感光表面可以顺序地放置在圆柱体的表面上以形成相应的分色。
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6.发明授权
公开(公告)号：US3560757A
公开(公告)日：1971-02-02
申请号：US3560757D
申请日：1969-07-18
Applicant: CROSFIELD ELECTRONICS LTD
Inventor： PUGSLEY PETER C
CPC classification number: H04N1/6016
Abstract: In color printing, a circuit for generating a black printer signal has means for varying a selectivity factor which permits adjustment of the amount of black in colored areas while leaving it substantially unchanged in neutral areas. This variation is accomplished without substantial alteration of the scale factor of the black printer signal. The circuit includes maximum and minimum signal selector circuits receiving the color component signals and supplying the maximum and minimum signals to the two inputs of a differential amplifier having a feedback path to a first of the two inputs. The selectivity factor depends on the ratio of resistances in the feedback path and in the first input path.
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