Motion detection system for high definition television receiver
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United States of America Patent
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-
Sep 21, 1993
Grant Date -
N/A
app pub date -
Oct 30, 1989
filing date -
Nov 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A motion area detector capable of simple detection of a moving picture-area in a HDTV receiver of a multiple subsampling transmission system is disclosed. The motion area detector includes a still-picture processor for reproducing a still picture from a picture signal applied into the detection circuit of the receiver, a moving-picture processor for reproducing a moving picture from the picture signal, a mixer for carrying out a linear mixing operation between the still picture and the moving picture, and a motion detector for detecting a motion area from a mixed picture signal of the mixer and from the still picture signal reproduced by the still picture processor and for providing information concerning a mixing ratio between the still picture and the moving picture.
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