H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/26
H04N 7/16 (2006.01) H04N 7/167 (2006.01)
Patent
CA 1164991
ABSTRACT OF THE DISCLOSURE A method and means for coding and decoding video signals by repetitive video signal polarity reversal includes the steps of comparing the brightness level of a predetermined time period of the video signal with the brightness level of the video signal over the previous predetermined time period. The polarity of the video signal is inverted or reversed if the difference in brightness level between successive predetermined time periods exceeds a given value.
376890
Den Toonder Pieter
Fondse Pieter J.
Jirka Howard F.
Seltenrijch Johannes C.
Stubbs Graham S.
Oak Industries Inc.
Riches Mckenzie & Herbert Llp
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