Programmable video display generator

Details Programmable video display generator Programmable video display generator

1983-11-15

1986-12-02

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340723, 340724, 340732, 340789, G09G 114

Patent

active

046268391

ABSTRACT:
A video display system is provided having a programmable video display generator. The video display generator is divided into a control unit and an interface unit. The control unit has a dedicated display address generator which frees up the microprocessor used in the video display system. The system is capable of operation with several different microprocessors as well as with different types of random access memories. Circuitry within the interface unit advises the system of the type of microprocessor being used as well as the type of random access memory. The interface unit controls character generation as well as final attribute circuitry which gives the video display generator a high degree of capability while minimizing the amount of circuitry required.

REFERENCES:
patent: 4104624 (1978-08-01), Hamada
patent: 4290064 (1981-09-01), Traster
patent: 4462028 (1984-07-01), Ryan et al.
patent: 4475124 (1984-10-01), Ankeny et al.
patent: 4520356 (1985-05-01), O'Keefe et al.

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