专利汇可以提供Cathode ray tube display of a motion picture film专利检索,专利查询,专利分析的服务。并且Frames of a motion picture film are transported at a desired frame rate through a scanning field where a light spot is deflected to trace a scanning raster on a scanned frame of the film. The vertical deflection of the light spot is in an opposite direction from the transportation direction of the film and is substantially proportional to the sum of the displacement of the scanned frame in the scanning field and a vertical sawtooth voltage; the horizontal deflection is in proportion to a horizontal sawtooth voltage. The sawtooth voltages and a video signal proportional to light emanating from the scanned frame are provided to a cathode ray tube where a viewing raster is traced by a beam on the face thereof whereby an image on the scanned frame is displayed. During a retrace time of the scanning raster, the light spot is deflected to an edge of a sprocket hole of the film associated with the scanned frame. The vertical component of the deflection to the edge is in proportion to the sum of displacement voltage corresponding to the displacement of the scanned frame, a vertical reference voltage and an error voltage. A signal having a known relationship to the error voltage is provided to vertically deflect the scanning raster to reduce the error voltage, thereby reducing an undesired shift of the scanning raster. In response to the displacement voltage corresponding to the scanned frame being about to pass from the scanning field, the displacement voltage is reset whereby the scanning raster is traced on a succeeding frame.,下面是Cathode ray tube display of a motion picture film专利的具体信息内容。
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