Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-07-06
1997-09-09
Powell, Mark R.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
G08B 538
Patent
active
056661290
ABSTRACT:
A pair of electrical display elements, LEDs, is driven by a three-state buffer driver circuit. The LEDs have associated current-limiting resistors. The driver circuit applies different selected voltage levels at different selected predetermined frequencies to the LEDs. By having two predetermined frequencies to a pair of LEDs, there can be exhibited at least five different display conditions from the pair of LEDs.
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Andersson Ralph
Shafir Haim
Wurster Stefan
Level One Communications Inc.
Powell Mark R.
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