G - Physics – 09 – G
Patent
G - Physics
09
G
G09G 5/14 (2006.01) G06F 15/62 (1990.01)
Patent
CA 2115551
2115551 9306561 PCTABS00021 A plurality of computer application programs (66a, 66b, ...66n) have respective display generation routines (64a, 64b, ...64n) for generating respective program video displays onto a computer display screen (58). Backplane software (50) operates all of the respective display generation routines (64a, 64b, ...64n) to generate overlayed, composite video display of the respective program video displays. The software system (50) fuses the display outputs of each of a plurality of independent application programs (66a, 66b, ...66n) into a single overlayed screen display. More particularly, the software backplane architecture (50) interrupts the draw subroutine calling sequences of each independent application program, and redirects those sequences to the backplane software (50). The backplane software (50) initiates a redraw command to the application program to in turn operate the display generation routines to cause a display. Since all of the independent application programs (66a, 66b, ...66n) have draw sequences under control of the backplane software (50), the application programs remain independent of each other.
Rickenbach Brent L.
Rosenthal Thomas E.
General Dynamics Information Systems Inc.
Osler Hoskin & Harcourt Llp
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