Constant data rate brightness control for an AC plasma panel

Details Constant data rate brightness control for an AC plasma panel Constant data rate brightness control for an AC plasma panel

1981-06-12

1983-11-08

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340793, 340805, G09G 328

Patent

active

044145446

ABSTRACT:
A constant data rate brightness control for an AC plasma panel is disclosed in which a waveform ROM is used to store two groups of control signals. The first group performs sustain, write, erase, and bulk-erase functions in a normal manner emitting two pulses of light per cycle. The second group performs the same functions with emission of substantially no light. By mixing functions from the two groups and varying the ratio of the two groups, a broad range of variable brightness in the operation of the plasma panel is achieved.

REFERENCES:
patent: 4002828 (1977-01-01), Nolan
patent: 4006298 (1977-02-01), Fowler et al.
patent: 4020280 (1977-04-01), Kaneko et al.
patent: 4021607 (1977-05-01), Amano
patent: 4067047 (1978-01-01), Ryan
patent: 4183062 (1980-01-01), Weisbrod
patent: 4193095 (1980-03-01), Mizushima
patent: 4340889 (1982-07-01), Knight et al.
patent: 4350932 (1982-09-01), Coleman et al.

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