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公开(公告)号：US4368484A
公开(公告)日：1983-01-11
申请号：US223721
申请日：1981-01-09
申请人： Otto Stemme , Eduard Wagensonner
发明人： Otto Stemme , Eduard Wagensonner
摘要： An apparatus is disclosed for electronically scanning photographic positives or negatives and reproducing them as video images. These images are displayed on a video monitor and may, if desired, be copied onto photosensitive paper.
摘要翻译： 公开了一种用于电子扫描照相正片或底片并将其再现为视频图像的装置。 这些图像显示在视频监视器上，如果需要，可以将其复制到感光纸上。
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公开(公告)号：US4359757A
公开(公告)日：1982-11-16
申请号：US210215
申请日：1980-11-25
申请人： Walter Jaeger
发明人： Walter Jaeger
摘要： An axially symmetrical image is interrogated by means of a Z-shaped scanning raster to permit a simple color picture recording, which however contains all subjectively necessary elements. A scan of each of the two symmetrical images with a quadrupled interlace raster is produced. Video signals are repeated prior to image reproduction in order to avoid line creep. Repetition of one and the same video recording can be performed line by line, for example for video films intended for domestic use, and can be performed frame by frame for studio reproduction.
摘要翻译： 通过Z形扫描光栅询问轴对称的图像，以允许简单的彩色图像记录，然而，其包含所有主观必要的元件。 产生具有四倍交错光栅的两个对称图像中的每一个的扫描。 视频信号在图像再现之前重复，以避免线蠕变。 可以逐行执行重复的同一视频记录，例如用于家庭用的视频电影，并且可以逐帧地进行演播室再现。
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公开(公告)号：US4319280A
公开(公告)日：1982-03-09
申请号：US124403
申请日：1980-02-25
摘要： An apparatus is described for converting cinematographic images into video signals. The film gate in which a frame to be scanned is located is illuminated uniformly. The film is scanned by means of a rotatable scanning mirror, which with the aid of an imaging system images one line of the film frame onto one row (three rows for color film) of radiation sensitive detectors. The detectors of a row are read sequentially. The illumination beam has a large aperture angle in a first plane transverse to the direction of film transport and a small aperture angle in a plane transverse to the first plane. The film movement is detected with the aid of a sprocket hole detection system, in which an elongate narrow light spot, whose longitudinal direction is transverse to the direction of film transport, is projected onto the strip of film with the sprocket holes. The position of the scanning mirror is detected with the aid of two gratings of special shape.
摘要翻译： 描述了一种用于将电影图像转换为视频信号的装置。 要扫描的框架所在的胶片门被均匀地照射。 通过可旋转的扫描镜扫描胶片，借助于成像系统，胶片框架的一条线将辐射敏感检测器的一行（三行彩色胶片）成像。 顺序读取一行的检测器。 照明光束在垂直于膜输送方向的第一平面中具有大的孔径角，并且在横向于第一平面的平面中具有小的孔径角。 借助于链轮孔检测系统检测胶片运动，其中其长度方向横向于胶片传送方向的细长的窄光点通过链轮孔投影到胶片带上。 借助于特殊形状的两个光栅来检测扫描镜的位置。
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公开(公告)号：US4268865A
公开(公告)日：1981-05-19
申请号：US086711
申请日：1979-10-22
申请人： John D. Millward
发明人： John D. Millward
CPC分类号： H04N7/0112 , H04N3/38 , H04N9/11
摘要： This invention concerns a continuous motion flying spot telecine apparatus of the kind comprising a cathode ray tube for effecting flying spot line-by-line scanning of each frame of a film during its motion through a scanning station, opto-electronic converter means for producing from the scanning of each film frame an analogue signal comprising a plurality of lines of which at least a part of each (the active part) contains picture information, an analogue-to-digital converter for sampling the analogue signal at a predetermined clock frequency, a filter for limiting the bandwidth of the analogue signal prior to sampling to avoid interference between the clock frequency and high frequencies in the analogue signal, a store for storing digital signals produced by the sampling, and means for reading out the stored digital signals in a predetermined sequence and at a predetermined rate.In order to permit scanning of different format films or only part of the film frame height without burning the c.r.t., the apparatus further comprises means for selectively changing the line frequency of scanning between at least two values. In order to avoid changing the clock frequency when changing the line frequency, which would necessitate the use of switchable filters, means are provided for controlling the horizontal deflection speed of the flying spot in such manner that for either line scanning frequency the time taken to derive the active part of each line of the analogue signal corresponds to the same number of clock signals in each case. Preferably the last mentioned means comprises means for changing the horizontal scan amplitude of the flying spot in inverse proportion to the change in line scanning frequency.
摘要翻译： 本发明涉及一种包括阴极射线管的连续运动飞点电视电影设备，该阴极射线管用于在其通过扫描站的运动期间实现胶片每帧的逐点扫描，光电转换器装置用于从 每个胶卷框架的扫描包括其中每个（有效部分）的至少一部分包含图像信息的多行的模拟信号，用于以预定时钟频率对模拟信号进行采样的模拟 - 数字转换器， 滤波器，用于在采样之前限制模拟信号的带宽，以避免模拟信号中的时钟频率和高频之间的干扰，用于存储由采样产生的数字信号的存储器，以及用于以预定的方式读出所存储的数字信号的装置 序列和预定速率。 为了允许对不同格式的胶片进行扫描，或者仅仅是胶片框架高度的一部分而不燃烧c.r.t.，该装置还包括用于在至少两个值之间选择性地改变扫描线的频率的装置。 为了避免在改变线路频率时改变时钟频率，这将需要使用可切换滤波器，提供了用于以这样的方式控制飞点的水平偏转速度的装置，即对于任一行扫描频率，导出的时间 在每种情况下，模拟信号的每一行的有效部分对应于相同数量的时钟信号。 优选地，最后提到的装置包括用于与行扫描频率的变化成反比地改变飞点的水平扫描振幅的装置。
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45.发明授权Method and system for converting the image content of transported film into television signal picture information 失效将传送胶卷图像内容转换为电视信号图像信息的方法和系统
公开(公告)号：US4149191A
公开(公告)日：1979-04-10
申请号：US811157
申请日：1977-06-29
CPC分类号： H04N7/0112 , H04N5/253 , H04N9/11
摘要： A succession of film frames is continuously transported past at least one row of optoelectronic converters. The information registered by the row of optoelectronic converters is periodically read out and written-in into a storage. The information stored in the storage is read out at a rate and in a sequence converting the information in the storage into television signal picture information.
摘要翻译： 连续的胶片帧连续传送通过至少一排光电转换器。 由光电转换器行注册的信息被周期性地读出并写入存储器。 存储在存储器中的信息以将存储器中的信息转换成电视信号图像信息的速率和顺序被读出。
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公开(公告)号：US4051511A
公开(公告)日：1977-09-27
申请号：US726144
申请日：1976-09-24
申请人： Dieter Poetsch
发明人： Dieter Poetsch
摘要： Color balance of a color television picture is corrected during those periods when the luminosity falls within prespecified limits and when simultaneously the chroma-saturation is below a prespecified level. A switch operates to change the time constant of an integrator for derivation of a control signal indicative of when the simultaneous conditions are met. One time constant is used when the simultaneous conditions begin and another when they end, thereby allowing better correction of color stains which do not extend uniformly over the entire picture.
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公开(公告)号：US3904819A
公开(公告)日：1975-09-09
申请号：US44070374
申请日：1974-02-08
摘要： High voltage supply circuits for television apparatus. The current in a primary circuit of a transformer is determined by a transistor the impedance of which is controlled by negative feedback from a high voltage output coupled to the secondary circuit of the transformer. Current pulses in the primary are produced by switching another transistor in the primary circuit at television line frequency. The circuit can be employed to supply a dynode resistor chain of a photomultiplier in a flying spot colour television transmitter, the luminance signal being averaged by a long time constant integrating circuit and summed with the negative feedback to provide a further feedback control compensating for variation in the average density of film being scanned.
摘要翻译： 电视机高压电源电路。 变压器初级电路中的电流由晶体管确定，晶体管的阻抗由耦合到变压器次级电路的高电压输出的负反馈控制。 通过在电视线频率处切换初级电路中的另一晶体管来产生初级电流中的电流脉冲。 该电路可用于在飞点彩色电视发射机中提供光电倍增管的倍增电阻链，亮度信号被长时间常数积分电路平均，并与负反馈相加，以提供进一步的反馈控制， 正在扫描的胶片的平均密度。
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公开(公告)号：US3809807A
公开(公告)日：1974-05-07
申请号：US5544870
申请日：1970-07-16
申请人： GTE SYLVANIA INC
发明人： BULHAROWSKI J
摘要： A photographic film scanning system includes an electromechanical transducer contiguous with the film and responsive to the sprocket holes therein for providing electrical signals representative of the positional location of the film frames in a film scanning zone.
摘要翻译： 摄影胶片扫描系统包括与薄膜相邻并且响应于其中的链轮孔的机电换能器，用于提供表示胶片帧在胶片扫描区域中的位置位置的电信号。
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49.发明授权
公开(公告)号：US3790707A
公开(公告)日：1974-02-05
申请号：US3790707D
申请日：1972-07-03
申请人： EASTMAN KODAK CO
发明人： VALENTA H
摘要： The velocity of continuously moving information bearing media, such as perforated motion picture film bearing successive image frames, is derived from the detection of the movement of the image frames past first and second image frame detecting means displaced apart a distance Delta D in the direction of continuous movement and the production of corresponding first and second time-spaced signals having first and second time periods, respectively. Means are provided for transforming the first and second time-spaced signals into a velocity signal, such means including a reference signal having a value representative of the physical distance Delta D, first integrator means responsive to the velocity signal for producing a first ramp signal having a ramp slope dependent upon the value of the velocity signal and a period established by the second signal, difference means responsive to the reference signal and the first ramp signal for producing a second ramp signal representative of the instantaneous difference between the value of the reference signal and the time varying ramp slope of the first ramp signal, second integrator means responsive to the instantaneous amplitude of the difference signal for producing the velocity signal, and gate means responsive to the first signal that operates as a sampling signal for applying the second ramp signal to the second integrator means for a sampling period corresponding to the first period of the first signal, whereby the second integrator means is responsive to the sampled instantaneous value of the second ramp signal during the sampling period to produce the velocity signal having a value representative of the first predetermined rate of movement of the information bearing media and independent of non-uniform spacings of successive image frames. In telecine reproduction apparatus, the first ramp signal may be employed to modify the scanning rate of the telecine apparatus to synchronize it to the continuously moving image frames.
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50.发明授权System for deriving television signals from holographic and non-holographic records 失效从全息图和非全息记录中导出电视信号的系统
公开(公告)号：US3751589A
公开(公告)日：1973-08-07
申请号：US3751589D
申请日：1970-10-26
申请人： VOCKENHUBER KARL , HAUSER RAIMUND
摘要： Image-forming means for producing in an image plane a first image, which is derived from a holographic record, comprise a source of monochromatic light for illuminating a holographic record disposed in a predetermined second plane, and a first optical system for deriving said image from the light from said holographic record thus illuminated. The system comprises imagepresenting means, which serve to provide a second image from a non-holographic record and television signal-producing means which comprise a television camera for deriving television signals from said image in said image plane and said second image.
摘要翻译： 用于在图像平面中产生从全息记录导出的第一图像的图像形成装置包括用于照亮设置在预定第二平面中的全息记录的单色光源，以及用于从所述第一光学系统导出所述图像的第一光学系统 来自所述全息记录的光被照亮。 该系统包括图像呈现装置，其用于从非全息记录和电视信号产生装置提供第二图像，该装置包括用于从所述图像平面中的所述图像和所述第二图像导出电视信号的电视摄像机。
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