H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/3
H04N 11/00 (2006.01) H04N 9/76 (2006.01)
Patent
CA 1211201
ABSTRACT OF THE DISCLOSURE A video signal superimposing device for superimposing and clearly displaying video signals produced from at least two discrete systems comprises an input terminal for inputting a color complex video signal, a separation circuit for separating a first brightness signal and a first chroma signal from the color complex video signal, a first generator for generating a second brightness signal, a first mixer circuit for mixing the second brightness signal and the first brightness signal separated by the separation circuit, a second generator for generating a second chroma signal, a second mixer circuit for mixing the second chroma signal and the first chroma signal separated by the separation circuit, and a third mixer circuit for mixing the mixed brightness signal applied from the first mixer circuit and the mixed chroma signal applied to the second mixer circuit.
463969
Abumi Takao
Ueno Atsushi
G. Ronald Bell & Associates
Sharp Kabushiki Kaisha
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