Apparatus for simultaneously generating interpolated video signa

Television – Bandwidth reduction system – Data rate reduction

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348427, 348441, H04N 712

Patent

active

058052291

ABSTRACT:
An apparatus converts a subsampled video frame signal into an interpolated original video signal with a improved computational speed by using: a zero stuffing circuit for generating the (N+1)/2 video line signals alternately decimated; a first interpolation circuit for generating an interpolated even video line signal; a second interpolation circuit for generating an interpolated odd video line signal; and delay lines for simultaneously coupling the (N+1)/2 video line signals to the first and the second interpolation circuits to thereby allow the simultaneous generation of the interpolated even and odd video line signals.

REFERENCES:
patent: 4608600 (1986-08-01), Sugiyama
patent: 4866519 (1989-09-01), Lucas et al.
patent: 5151783 (1992-09-01), Faroudja
patent: 5307164 (1994-04-01), Dong-Il
patent: 5337089 (1994-08-01), Fisch
Christophe Joanblanq et al "A 54MHz CMOS Programmable Video Signal Processor for HDTV Applications", IEEE Journal of Solid-State Circuits, 25, No. 3, pp. 730-734, Jun. 1990.

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