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NOISE REDUCTION CIRCUITRY, IN A VIDEO SIGNAL COMPRESSION APPARATUS OF THE PREDICTIVE DPCM COMPRESSION TYPE INCLUDES A SIMPLE NONLINEAR PROCESSING ELEMENT ( 500 ) WITHIN THE DPCM LOOP ( 12, 15, 16, 18, 1333 ) TO ELIMINATE RESIDUES BETWEEN PREDICTED AND REAL IMAGE SIGNALS, WHICH ARE SMALLER THAN A PREDETERMINED VALUE. ELIMINATION OF SUCH RESIDUES DRAMATICALLY REDUCES THE AMOUNT OF COMPRESSED DATA GENERATED FOR SIGNALS INCLUDING EVEN MODEST AMOUNTS OF NOISE.FIGURE 2
MYPI94002709A1994-10-131994-10-12Video signal compression apparatus using noise reduction.
MY111567A
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