Method and system for smooth scrolling of a displayed image on a

Details Method and system for smooth scrolling of a displayed image on a Method and system for smooth scrolling of a displayed image on a

1988-01-07

1990-05-01

Brigance, Gerald

Communications: electrical

Land vehicle alarms or indicators

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

340724, 340728, G09G 116

Patent

active

049222384

ABSTRACT:
A method and apparatus for independently and dynamically performing smooth-scrolling a display line at a time is disclosed herein. An offset value for smooth-scrolling for each display line, is provided which shifts the image information of each display line by pixel. Rewriting of the screen according to the offset value is performed in synchronization with refreshing of the display screen. Selective smooth-scrolling can be performed for a displayed image in each display line, and complicated and various image display can be shifted by controlling the existence or nonexistence and speed of smooth-scrolling for each display line.

REFERENCES:
patent: 4197590 (1980-04-01), Sukonick et al.
patent: 4386410 (1983-05-01), Pandya et al.
patent: 4404554 (1983-09-01), Tweedy, Jr. et al.
patent: 4434472 (1984-02-01), Kachun
patent: 4437093 (1984-03-01), Bradley
patent: 4489317 (1984-12-01), Shiga
patent: 4611202 (1986-09-01), DiNitto et al.
patent: 4663617 (1987-05-01), Stockwell

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