Distance control for displaying a cursor

Details Distance control for displaying a cursor Distance control for displaying a cursor

1996-01-30

1997-08-12

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

395339, G09G 302

Patent

active

056570503

ABSTRACT:
A cursor is displayed with one of several different cursor orientations depending on the current position to which the cursor points on a display screen. The "cursor orientation" refers to the alignment of the cursor relative to an edge of the display screen. When the cursor points to a position that is within a predetermined distance from one of the edges of the display screen, the cursor is not visible on the display screen. Upon detecting that the cursor is not visible on the display screen, the cursor is displayed with a different cursor orientation such that the cursor is visible on the display screen. Preferably, the cursor orientation is selected so that when the cursor is displayed with the new cursor orientation, the entire cursor is visible on the display screen.

REFERENCES:
patent: 4586035 (1986-04-01), Baker et al.
patent: 4984152 (1991-01-01), Muller
patent: 5146211 (1992-09-01), Adams et al.
patent: 5146212 (1992-09-01), Venolia
patent: 5179656 (1993-01-01), Lisle
patent: 5298890 (1994-03-01), Kanamaru et al.

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