Galvanometer-type tilting-mirror scanning system and circuit therefor
    1.
    发明授权
    Galvanometer-type tilting-mirror scanning system and circuit therefor 失效
    电流计式倾斜镜扫描系统及其电路

    公开(公告)号:US4368489A

    公开(公告)日:1983-01-11

    申请号:US279038

    申请日:1981-06-30

    IPC分类号: H04N3/08 H04N9/11 G02B27/17

    CPC分类号: H04N9/11 H04N3/08

    摘要: A galvanometric tilting-mirror scanning system shifts an image of an original projected onto a photodiode row in a direction transverse to such row. The tilting-mirror mechanism is provided with an oil-filled damping chamber, heated and maintained at stabilized temperature. The control voltage driving the tilting-mirror system includes a sawtooth component whose lower-slope flanks determine the mirror's scanning sweep; a negative pulse which effects mirror tiltback or flyback; a positive pulse which brakes the tiltback and accelerates the mirror back up to its forwards-direction scanning-sweep speed; and finally a corrective component. The corrective component has the form of a pulse which increases the slope of the sawtooth component's lower-slope flanks during a time interval extending beyond the system's vertical blanking allotment, to compensate the non-linearity in the motion of the mirror which would exist during its forwards-direction scanning-sweep interval in the absence of the corrective component.

    摘要翻译: 电流倾斜镜扫描系统将横向于该行的方向将投影到原始光电二极管行上的图像移动到光电二极管行上。 倾斜镜机构设有充油阻尼室,加热并保持在稳定的温度。 驱动倾斜镜系统的控制电压包括锯齿波分量,其下斜侧面决定了镜的扫描扫描; 影响镜面倾斜或反射的负脉冲; 正向脉冲,其制动倾斜并加速反射镜向前扫描扫描速度; 最后是一个纠正组件。 校正组件具有脉冲的形式,其在延伸超出系统的垂直消隐分配的时间间隔内增加锯齿形部件的下斜面侧面的斜率,以补偿其在其内部存在的反射镜的运动中的非线性 在没有校正组件的情况下,前向扫描间隔。

    Projection and scanning system for producing video signals from motion
picture film and control system used therein
    2.
    发明授权
    Projection and scanning system for producing video signals from motion picture film and control system used therein 失效
    用于从其中使用的电影胶片和控制系统产生视频信号的投影和扫描系统

    公开(公告)号:US4296438A

    公开(公告)日:1981-10-20

    申请号:US136114

    申请日:1980-03-31

    IPC分类号: H04N5/253 H04N3/36 H04N3/38

    CPC分类号: H04N3/38

    摘要: A projection and scanning system for synchronization of photographic film projection with vertical sync pulses is taught. In this system, developed photographic film is advanced into a projection gate which is larger than the vertical height of an individual photographic frame. As a given film frame passes through the projection gate, it is repeatedly scanned by a mirror and the projected image reflected onto a charge-coupled image sensor which can be used to provide information for a video signal. Perforations on the film enable pulses to be developed at a photocell which are a function of film speed. By processing these pulses, along with vertical sync pulses and appropriate control waveforms, accurate scanning of the film can be achieved, enabling video signals resulting in flickerless television transmissions to be generated.

    摘要翻译: 教导了用于摄影胶片投影与垂直同步脉冲同步的投影和扫描系统。 在该系统中,显影的照相胶片被推进到比单独的照相框的垂直高度大的投影门。 当给定的胶片框架通过投影门时,它被反射镜重复扫描,反射到电荷耦合图像传感器上的投影图像可以用于提供视频信号的信息。 胶片上的穿孔使得能够在光电池上产生脉冲,这是膜速度的函数。 通过处理这些脉冲以及垂直同步脉冲和适当的控制波形,可以实现胶片的精确扫描,使视频信号产生无闪烁的电视传输。

    Optical reproducing device for a super-8 film reader
    3.
    发明授权
    Optical reproducing device for a super-8 film reader 失效
    用于超8读取器的光学再现装置

    公开(公告)号:US4280142A

    公开(公告)日:1981-07-21

    申请号:US104161

    申请日:1979-12-17

    IPC分类号: H04N5/253 H04N3/36

    CPC分类号: H04N3/36

    摘要: Light is directed from a source through a developed and travelling motion-picture film, to pass through a reproduction lens. This light is intercepted by a tilting mirror which reflects it back through the lens where it is intercepted by a stationary mirror and reflected onto an opto-electronic receiver for conversion into signals which permit showing of the film images on a television screen.

    摘要翻译: 光通过显影和行进的动态影像从源引导,通过再生透镜。 该光被倾斜镜截取,该倾斜反射镜将其反射回透镜,其被静止镜截取,并被反射到光电接收器上,以转换为允许在电视屏幕上显示胶片图像的信号。

    Device for the electronic scanning of images
    4.
    发明授权
    Device for the electronic scanning of images 失效
    用于电子扫描图像的设备

    公开(公告)号:US4445139A

    公开(公告)日:1984-04-24

    申请号:US124789

    申请日:1980-02-25

    IPC分类号: H04N5/253 H04N3/36 H04N3/38

    CPC分类号: H04N3/38

    摘要: An electronic image scanner is disclosed in various embodiments. Scanning of an image is divided into a first reproduction phase and a second reproduction phase. In the first reproduction phase, a first half-frame of a video signal is developed. In the second reproduction phase, a second half-frame of the video signal is developed. By utilizing the invention herein, a flicker-free video signal can be developed from a motion picture film while maintaining resolution of the resultant video signal at the conventional television resolution standard of 625 lines per film frame.

    摘要翻译: 在各种实施例中公开了电子图像扫描仪。 图像的扫描被划分为第一再现相位和第二再现相位。 在第一再现阶段,开发视频信号的第一半帧。 在第二再现阶段,显影视频信号的第二半帧。 通过利用本发明,可以从电影胶片开发出无闪烁的视频信号,同时以每片胶片帧625行的常规电视分辨率标准保持得到的视频信号的分辨率。

    Electronic scanning of super-8 films for reproduction on a T.V. viewing
unit
    5.
    发明授权
    Electronic scanning of super-8 films for reproduction on a T.V. viewing unit 失效
    用于在T.V观看单元上进行电子扫描的超8张影片进行再现

    公开(公告)号:US4330793A

    公开(公告)日:1982-05-18

    申请号:US56789

    申请日:1979-07-11

    IPC分类号: H04N9/11 H04N3/08 H04N9/07

    CPC分类号: H04N9/11

    摘要: Super-8 motion-picture film is transported non-intermittently at constant speed, and its image is projected into an image plane in which is located a single row of photodiodes which extends transverse to the film transport direction. The photodiodes of the single photodiode-row are successively responsive to red, blue and green wavelengths. A bucket-brigade circuit or CCD including the photodiode-row furthermore includes a shift register which receives the photodiode signals in parallel, is then read out serially, with its output signal then time-division demultiplexed to obtain separate red, blue and green signals; or else three shift registers are used, each receiving signals only from those photodiodes responsive to a respective one of the three component colors. Whereas the photodiode-row is responsible for horizontal scanning, vertical scanning is achieved in part due to film transport per se and in part due to a tilting-mirror deflector which deflects the image projected onto the photodiode-row. The tilting-mirror deflector is a galvanometric moving-coil mechanism, and is energized by a sawtooth waveform to effect forwards scanning and abrupt vertical-direction flyback or tiltback, and is provided with special brief pulses for effecting abrupt direction reversals of the tilting mirror.

    摘要翻译: Super-8电影胶片以恒定的速度非间歇地传送,并且其图像被投影到图像平面中,其中位于横向于胶片传送方向延伸的单行光电二极管。 单个光电二极管行的光电二极管依次响应红色,蓝色和绿色波长。 包括光电二极管行的斗式电路或CCD还包括并行接收光电二极管信号的移位寄存器,然后其输出信号被顺序解复用以获得单独的红色,蓝色和绿色信号; 或者使用三个移位寄存器,每个移位寄存器仅接收来自响应于三个分量颜色中的相应一个的那些光电二极管的信号。 尽管光电二极管行负责水平扫描,但是部分由于胶片输送本身而部分地实现了垂直扫描,部分是由于倾斜镜偏转器使投影到光电二极管行上的图像偏转。 倾斜镜偏转器是电流计动力线圈机构,并且由锯齿波形激励以实现向前扫描和突然的垂直方向回扫或倾斜,并且具有用于实现倾斜镜的突然方向反转的特殊短暂脉冲。

    Mechanical film drive for driving motion picture film, particularly in
projection and scanning systems
    6.
    发明授权
    Mechanical film drive for driving motion picture film, particularly in projection and scanning systems 失效
    用于驱动电影胶片的机械胶片驱动,特别是在投影和扫描系统中

    公开(公告)号:US4285455A

    公开(公告)日:1981-08-25

    申请号:US162106

    申请日:1980-06-23

    CPC分类号: H04N5/257

    摘要: A mechanical film drive utilizes a rotatable drive shaft which abuts a flat surface of motion picture film to be driven. The film is pinched between the drive shaft and a rubber idler roller, and the drive shaft can be coupled to and uncoupled from a speed-regulated drive motor by means of an electrically-operable clutch. A flywheel is driven by the motor. Since the inertia of the flywheel is much greater than the inertia of the drive shaft, clutch operation has only a negligible effect on drive speed, enabling film movement to be accomplished with a high degree of accuracy.

    摘要翻译: 机械薄膜驱动器利用与要驱动的电影胶片的平坦表面相邻的可旋转驱动轴。 该胶片被夹在驱动轴和橡胶惰轮之间,并且驱动轴可以通过电动可操作的离合器与速度调节的驱动电动机联接和分离。 飞轮由电机驱动。 由于飞轮的惯性远大于驱动轴的惯性,因此离合器操作对驱动速度影响不大,可以高精度地实现胶片移动。

    Method of and apparatus for making video images
    7.
    发明授权
    Method of and apparatus for making video images 失效
    制作视频图像的方法和设备

    公开(公告)号:US4652929A

    公开(公告)日:1987-03-24

    申请号:US786311

    申请日:1985-10-10

    CPC分类号: H04N1/486 H04N1/4092

    摘要: A method of producing a video picture of an image comprises the steps of lighting the image at a light level equal to about a predetermined small fraction of the light level necessary to produce picture-element signals of an amplitude sufficient to process. The thus lighted image is then scanned and electrooptically reduced to a succession of sets of analog picture-element signals a predetermined number N of times, the number N being equal to the inverse of the predetermined small fraction. Thus for each portion of the image there is a respective picture-element signal in each succession. The signals of each image portion are then projected onto the same portion of a light-sensitive medium to form a picture of the image thereon. This medium is capable of adding each of the signals of each set to the signals of the other sets corresponding to the same image portion.

    摘要翻译: 产生图像的视频图像的方法包括如下步骤:以等于产生足以处理的幅度的图像元素信号所需的光量级的大约预定的小部分的光级别点亮图像。 然后将如此照亮的图像扫描并电光学地减少到预定数量N次的一系列模拟图像元素信号,数量N等于预定小部分的倒数。 因此,对于图像的每个部分,每个连续存在相应的图像元素信号。 然后将每个图像部分的信号投影到光敏介质的相同部分上以在其上形成图像的图像。 该介质能够将每组信号中的每一个信号与对应于同一图像部分的其它集合的信号相加。

    Photographic instant camera with magnetic recording capability
    9.
    发明授权
    Photographic instant camera with magnetic recording capability 失效
    具有磁记录功能的摄影即时相机

    公开(公告)号:US4270854A

    公开(公告)日:1981-06-02

    申请号:US74121

    申请日:1979-09-10

    摘要: A sheet of exposed and developed instant-camera film is discharged from an instant camera and then inserted by the user into a film-holding structure on the back of the camera which very accurately positions the film sheet, such that upon removal and reinsertion of the film sheet into the holding structure the film sheet will always assume a predetermined position. The camera is provided with a multihead magnetic head unit mounted for reciprocating motion along a magnetic strip or coating provided at a marginal portion of the inserted film sheet. During first-direction travel of the head unit, one head records, and during second-direction travel of the head unit a different and differently located head records onto a further segment of the magnetic strip. After recording, the recorded information, e.g., spoken words identifying the subject just photographed, can be reproduced, and if desired erased.

    摘要翻译: 曝光和显影的即时相机胶片的片材从即时相机排出,然后由用户插入相机背面的胶片保持结构,其非常精确地定位胶卷片,使得在拆下并重新插入胶片 膜片进入保持结构中,胶片将始终呈现预定位置。 相机设置有多头磁头单元,其安装成沿着设置在插入的胶片片的边缘部分处的磁条或涂层往复运动。 在头单元的第一方向移动期间,一个头记录,并且在头单元的第二方向移动期间,将不同且不同位置的头记录到磁条的另一段上。 在记录之后,可以再现所记录的信息,例如识别刚被拍摄的对象的口语,并且如果需要,可以擦除。

    Shutter-diaphragm system with light-totalizing circuit
    10.
    发明授权
    Shutter-diaphragm system with light-totalizing circuit 失效
    具有光累加电路的快门光圈系统

    公开(公告)号:US4251141A

    公开(公告)日:1981-02-17

    申请号:US029912

    申请日:1979-04-16

    CPC分类号: G03B7/097

    摘要: During the course of an exposure, the camera's exposure aperture progressively increases in size and then is blocked to terminate the exposure in response to a terminate-exposure signal. A light-dependent pulse generator including a photoelement exposed to scene light generates a pulse train whose pulse repetition frequency varies as a function of scene light. A light-totalizing counter receives and counts pulses of such pulse train during the course of an exposure and generates a terminate-exposure signal when a predetermined number of pulses has been counted. A frequency-modifying circuit is operative as the exposure aperture progressively increases in size during an exposure for effecting a corresponding and compensatory progressive increase of the light-dependent repetition frequency of the pulses counted by the counter means.

    摘要翻译: 在曝光过程中,相机的曝光孔径逐渐增加,然后被阻止以响应于终止曝光信号而终止曝光。 包括暴露于场景光的光电元件的依赖于光的脉冲发生器产生脉冲重复频率作为场景光的函数而变化的脉冲串。 累计计数器在曝光过程中接收和计数这样的脉冲串的脉冲,并且当计数了预定数量的脉冲时产生终止曝光信号。 频率修正电路是可操作的,因为在曝光期间曝光孔径尺寸逐渐增加,以实现由计数器装置计数的脉冲的光依赖重复频率的相应和补偿性逐渐增加。