1
Tefcros Anthias, John A Herrod, Martin W Ricketts: Data display system. International Business Machines Corporation, Marc D Schechter, July 4, 1989: US04845644 (101 worldwide citation)

A data display system in which input-output display devices are connected to a central processor, and users select application programs that are run on the central processor. The control system of the central processor includes a display manager control system and a windowing control mechanism which ...


2
Tefcros Anthias, John A Herrod, George M Trees: Multiple window display system having indirectly addressable windows arranged in an ordered list. International Business Machines Corporation, Jack M Arnold, Marc D Schechter, December 26, 1989: US04890257 (85 worldwide citation)

A multiple window display system includes a display device and a screen ownership area pointing to the identity of the window which is to contribute the data for each display area of the display device. An ordered list is maintained of the active windows in the priority order thereof. Means are prov ...


3
John A Herrod: Graphics processing method and apparatus. International Business Machines Corporation, Paul S Drake, January 24, 1995: US05384903 (3 worldwide citation)

When clipping a graphics element defined by its element border to a viewing window having a window border within which the graphics element is to be displayed, it is necessary to plot closure lines along the window border between the points where the element border exits and enters the viewing windo ...