G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 3/40 (2006.01) H04N 3/223 (2006.01) H04N 3/227 (2006.01) H04N 3/27 (2006.01) H04N 5/262 (2006.01) H04N 7/01 (2006.01) H04N 7/015 (2006.01) H04N 7/26 (2006.01) H04N 9/64 (2006.01) H04N 5/44 (2006.01) H04N 5/45 (2006.01) H04N 7/00 (2006.01)
Patent
CA 2082260
A video display has a first format display ratio. A mapping circuit maps an adjustable picture display area on the video display. A signal processor generates first and second video signals from input video signals having one of different format dis- play ratios. A switching circuit selectively couples video signal sources as the input video signals. The signal processor can manip- ulate data from the input video signals by selective interpolation and cropping. A synchronizing circuit synchronizes the first and second signal processors with the mapping circuit. A selecting circuit selects as an output video signal between one of the first and second processed video signals and a combination of the first and second processed video signals. A control circuit controls the mapping circuit, the first and second signal processors and the selecting circuit to adjust in format display ratio and image aspect ratio each picture represented in the output video signal. One of the different format display ratios of the input video sig- nals can be the same as the first format display ratio of the video display. The mapping circuit can comprise a raster generating circuit for a cathode ray tube or an address matrix generator for a liquid crystal display.
Altmanshofer Robert Dale
Canfield Barth Alan
Ersoz Nathaniel Haluk
Rodriguez-Cavazos Enrique
Willis Donald Henry
Craig Wilson And Company
Thomson Consumer Electronics Inc.
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