Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1990-05-30
1992-06-02
Kostak, Victor R.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358214, 358315, H04N 336
Patent
active
051191911
ABSTRACT:
In a video assist system, an intermittent composite video signal produced by a modified television camera from a motion-picture image is converted to a composite video output signal in a continuous television format, by writing a largely unprocessed intermittent signal (including composite color, intensity and timing information) into a field buffer and reading a continuous television output signal (including both control elements and data) from that field buffer. The field buffer may comprise multiplexed banks of static RAM, with separate read address and write address generators for reading and writing data independently. When a field is repeated on output, an even-lines field may follow a previous even-lines field or an odd-lines field may follow a previous odd-lines field. It is not necessary to synchronize the phase of the video assist system with the motion-picture camera, and it is possible to retrieve television image frames at a divisor of the motion-picture camera frame rate to work with a brighter image.
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Kostak Victor R.
Panavision International L.P.
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