Display apparatus with mixed alphanumeric and graphic image

Details Display apparatus with mixed alphanumeric and graphic image Display apparatus with mixed alphanumeric and graphic image

1985-03-06

1987-08-11

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340747, 340748, G09G 128

Patent

active

046865217

ABSTRACT:
A graphics display apparatus employing a raster scanned cathode ray tube uses a refresh buffer constituted by a coded alphanumeric buffer and an associated character generator for displaying alphanumeric characters and other symbols and an all-points-addressable buffer for displaying graphics. Serialized data from the two buffers are mixed in a mixer under control of at least one control bit (attribute) stored in the coded buffer to provide a composite pel-representing bit stream supplied to the cathode ray tube.

REFERENCES:
patent: 3685038 (1972-08-01), Flanagan
patent: 4408198 (1983-10-01), Kudirka
patent: 4408200 (1983-10-01), Bradley
patent: 4441105 (1984-04-01), Van Vliet et al.
patent: 4470042 (1984-09-01), Barnich et al.
patent: 4555700 (1985-11-01), Conuis et al.
patent: 4591845 (1986-05-01), Komatsu et al.

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