04725829 is referenced by 33 patents and cites 6 patents.

In an interactive graphics display system in which pels in a frame buffer are mapped to the display screen of a raster display device, a method of automatically highlighting and de-highlighting graphic segments as a cursor is moved across the display screen comprises sampling a locator device at successive points in time to generate a screen cursor at corresponding positions on the screen, examining pels in the frame buffer along a line which extends from the pel corresponding to the previous cursor position to the pel corresponding to the current cursor position to determine whether a pel is "on" along the line, automatically performing a correlate operation in respect of the "on" pel (if any) to identify the graphic segment associated with that pel, and highlighting the segment so identified, any highlighted segment being de-highlighted prior to highlighting a different segment.

Title
Automatic highlighting in a raster graphics display system
Application Number
6/773385
Publication Number
4725829
Application Date
September 6, 1985
Publication Date
February 16, 1988
Inventor
Alan S Murphy
Eastleigh
GB
Agent
Frederick D Poag
Joseph J Connerton
George E Clark
Assignee
International Business Machines Corporation
NY, US
IPC
G09G 1/16
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