Video scan converter
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United States of America Patent
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-
Sep 13, 1994
Issued Date -
N/A
app pub date -
Sep 30, 1992
filing date -
Mar 19, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A video scan converter includes an input for receiving a video signal at a first scan rate, an output for providing a video signal at a second scan rate and a main path leading between the input and the output. The main path includes a scan line interpolation circuit and a time scale modification circuit which provide conventional two-dimensional scan conversion. A further path coupled to the main path dynamically alters the output of the scan line interpolation circuit in response to motion in the picture represented by the video signal, thus providing a three-dimensional scan conversion. The further path may be optional.
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