Boots – shoes – and leggings
Patent
1993-06-10
1996-06-04
Ramirez, Ellis B.
Boots, shoes, and leggings
345 4, 345113, 345186, 348571, 395100, 395135, H04N 1106, H04N 1120
Patent
active
055239587
ABSTRACT:
A reference value memory circuit 552 in a video switch control circuit 550 stores upper threshold values DU and lower threshold values DL of respective colors defining a predetermined range of chromaticity. A color comparator circuit 554 compares these upper threshold values DU and the lower threshold values DL with a second video signal LSMEM. When a color represented by the second video signal is within the predetermined range of chromaticity, a color comparison signal S1, which is an output of the color comparator circuit 554, becomes at H level, while the color comparison signal S1 becomes at L level when the color is out of the predetermined range of chromaticity. A selection signal S2 is generated according to the color comparison signal S1 and a switcher signal CNT. A video switch 510 selects one of a first video signal LSPC output from a computer and a second video signal LSDA output from a video memory 310 in response to the selection signal S2. As a result, only a desirable portion of the second video image is superimposed over the first video image.
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Assouad Patrick J.
Ramirez Ellis B.
Seiko Epson Corporation
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