Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1984-12-10
1992-08-25
Oberley, Alvin E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340799, G09G 10
Patent
active
051422751
ABSTRACT:
Control of a split screen display and the display of sequential images on a display is effected by rotation of a trackball. Pulse trains generated by rotation of the trackball are inputted to a microprocessor which controls the junctions in a split screen and the image data applied to a display.
REFERENCES:
patent: 4497024 (1985-01-01), Roth
patent: 4550386 (1985-10-01), Hirosawa et al.
patent: 4710762 (1987-12-01), Yamada
Daniels "The architecture of the Lisa.TM. personal Computer" Proceedings of the IEEE, New York, pp. 331-341, vol. 72, No. 3, Mar. 3, 1984.
Williams, G. "The Lisa Computer System," Byte, Feb. 1983, pp. 33-50.
General Electric Company
Oberley Alvin E.
Woodward Henry K.
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