Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1980-05-14
1982-07-20
Buczinski, S. C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358123, H04N 716
Patent
active
043409067
ABSTRACT:
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.
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den Toonder Pieter
Fondse Pieter J.
Jirka Howard F.
Seltenrijch Johannes C.
Stubbs Graham S.
Buczinski S. C.
Oak Industries Inc.
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