Visual output means for a data processing system

Details Visual output means for a data processing system Visual output means for a data processing system

1978-04-03

1979-07-17

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 314

Patent

active

041617770

ABSTRACT:
A visual output assembly connects to a bus in a data processing system. The assembly includes a memory, plural visual display units and a multiplexing unit that connects to the bus, the memory and each visual display unit. Priority arbitration circuitry in the multiplexing unit receives request signals for access to the memory from the bus and from each of the visual display units. The priority arbitration circuitry controls address and data path switching circuits to establish appropriate address and data paths between the memory and the selected one of the bus and visual display units.

REFERENCES:
patent: 3447135 (1969-05-01), Calta et al.
patent: 3500336 (1970-03-01), Cuccio et al.
patent: 3828325 (1974-08-01), Stafford et al.
patent: 3833930 (1974-09-01), Macker et al.

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