Picture information display device

Details Picture information display device Picture information display device

1989-07-14

1992-06-23

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340721, 340723, 340724, G09G 106

Patent

active

051246910

ABSTRACT:
A picture information display device for displaying at high speed a plurality of picture in windows in a display unit. A frame memory is used for storing the display information corresponding to a display surface of the display unit. There is a window memory for storing the picture information of the window. A control circuit outputs address signal corresponding to the scanning position of the display unit to the frame memory and window memory when the movement or scrolling of the window is detected that the window is moving condition the frame memory and window memory to output the display information and stored in the address represented by the address signal and the picture information in the moving window.

REFERENCES:
patent: 4618858 (1986-10-01), Belch
patent: 4686521 (1989-08-01), Beaven et al.
patent: 4872001 (1989-10-01), Netter
"Graphic Bit-BLT Copy Under Mask" IBM Technical Disclosure Bulletin vol. 28 No. 6 Nov. 1985.

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