Information display system having a multiple cell raster scan di

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

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340721, 340723, 340799, G09G 114

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active

046188584

ABSTRACT:
An information display system includes a raster-scan display screen DS and an information store IS for storing information to be displayed on the screen. The store has a capacity greater than the maximum amount of information which may be displayed at any one time. Display controller DC is operable to generate a succession of screen addresses of successive areas of the display screen DS, and mapping memory MU is provided to translate each screen address into a store address indicating the location in the information store IS of the information to be displayed in that area of the display screen. Display logic DL is provided to produce from the store output the necessary signals for activating the display. Map changes MC are provided to enable the translations effected by the mapping memory MU to be varied as required to change the display. One or more input devices ID allow information to be written into the display store.

REFERENCES:
patent: 4016362 (1977-04-01), Bristow et al.
patent: 4197590 (1980-04-01), Sukonick et al.
patent: 4437093 (1984-03-01), Bradley
patent: 4484192 (1984-11-01), Seitz et al.
patent: 4533910 (1985-08-01), Sukonick et al.

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