Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1985-09-16
1987-04-21
Hix, L. T.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358227, 358228, 355 68, 356221, 356233, 250214AL, 250214C, H04N 5253
Patent
active
046600914
ABSTRACT:
The average video level of a video camera is corrected for film-to-video conversion by having a film aperture plate with a light-passing opening that is slightly enlarged with respect to the image area of the film. Non-image light passes through a peripheral region of the film, as defined by the enlarged opening, and strikes a part of the camera sensor not receiving image-wise illumination. By enlarging the aperture plate opening just enough that the video signal from the non-imaged part of the sensor approximates a desired average video level, the automatic video level correction performed by the camera will pertain only to the image. The aperture plate is part of a film gate that is rotatably mounted so that the film may be supported in either a "horizontal" or "vertical" orientation, depending on how the film image was initially exposed.
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Eastman Kodak Company
Hix L. T,.
Rutledge D.
Woods David M.
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