Data transmission or recording with reduced data rate

Details Data transmission or recording with reduced data rate Data transmission or recording with reduced data rate

H - Electricity

04

N

352/19.1

H04N 11/04 (2006.01) H04N 7/46 (2006.01)

Patent

CA 1168356

RCA 75869 DATA TRANSMISSION OR RECORDING WITH REDUCED DATA RATE Abstract An encoder for digital e.g., video, signals uses averages of pairs of transmitted samples to reconstruct untransmitted samples. The pair selected for reconstruction is selected in accordance with the criteria of least change around the untransmitted sample. If a plurality of averages are tied for least change, a priority order is used to select which average to use. For color video signals the priority order is preferably the horizontal, diagonal and vertical averages. A different order can be used for monochrome signals.

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