Interpolation and scanning line converting circuit

Details Interpolation and scanning line converting circuit Interpolation and scanning line converting circuit

1992-01-16

1994-04-26

Groody, James J.

Television

Format conversion

Line doublers type

348607, H04N 701

Patent

active

053071646

ABSTRACT:
An interpolation and scanning line converting circuit in a digital television for converting an interlaced scanning signal to a progressive scanning signal by linearly interpolating through a slant correlation of a lowpass interpolation signal and through "0" insertion of a highpass interpolation signal in a vertical direction in order to prevent visual degradation of a vertical direction of an image as well to prevent visual disturbance phenomenon resulted from the interlaced scanning method.

REFERENCES:
patent: 4706113 (1987-11-01), Ito
patent: 4967263 (1990-10-01), Dieterich
patent: 5057921 (1991-10-01), Robert

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