Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-12-25
2007-12-25
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S169300
Reexamination Certificate
active
10808588
ABSTRACT:
A driving circuit for a vacuum fluorescent display having a filament, a grid electrode and a segment electrode, comprising a grid driving unit for pulse-driving the grid electrode, a segment driving unit for pulse-driving the segment electrode, a first controlling unit for rendering adjustable the duty ratio of the output of the grid driving unit, a second controlling unit for rendering adjustable the duty ratio of the output of the segment driving unit, and a selecting unit for selecting the first controlling unit and/or the second controlling unit.
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Arai Hiroyuki
Kimura Takeshi
Motegi Syuji
Tokunaga Tetsuya
Chow Yuk
Fish & Richardson P.C.
Mengistu Amare
Sanyo Electric Co,. Ltd.
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