Graphic display system for process control using a plurality of

Details Graphic display system for process control using a plurality of Graphic display system for process control using a plurality of

1989-02-14

1991-11-12

Harkcom, Gary V.

Communications: electrical

Land vehicle alarms or indicators

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

340798, 395164, G06F 1520

Patent

active

050653431

ABSTRACT:
A graphic display system comprising a plurality of graphic display units which are connected to a host processor through a common bus and providing useful quick response characteristics as a man-machine interface for process control, wherein a common memory of two ports, one of which is connected to the common bus and the other is connected to an internal bus, is provided in each graphic display unit and a part of the common memory is used for transmission of high level command/data with the host processor and comprises a FIFO (i.e. first in first out) buffer.

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patent: 4783731 (1988-11-01), Miyazaki et al.
patent: 4802118 (1989-01-01), Honda et al.
patent: 4811052 (1989-03-01), Yamakawa et al.
patent: 4910765 (1990-03-01), Matsuse et al.
patent: 4935886 (1990-06-01), Choka

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