Two dimensional adaptive dropout compensator and chroma inverter
AssigneeRCA Corporation
InventorGlenn A. Reitmeier
Life of this patent
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Abstract
A dropout compensator for time spread digital television signals uses either horizontal or vertical averaging to replace a dropped out sample. The choice of direction is made in accordance with whichever direction has the least amount of change around the missing sample or pixel. The circuitry can also be used for chroma invertion when stop or slow motion is to be transmitted or recorded.
Claims10
A method for correcting dropped-out samples of recorded data, said method comprising computing the difference between samples in one direction with respect to the dropped out sample, computing the difference between samples in at least one other direction with respect to the dropped out sample, and computing an average of data from one of said directions in accordance with whichever of said differences is less.
An apparatus for correcting dropped-out samples of recorded data, said apparatus comprising means for computing the difference between samples in one direction with respect to the dropped-out sample, means for computing the difference between samples in at least one other direction with respect to the dropped-out sample, and means for computing an average of data from one of said directions in accordance with whichever of said differences is less.
Dependencies are inferred from the claim text.