Intelligent self-diagnosing and sparing light emitting diodes

Details Intelligent self-diagnosing and sparing light emitting diodes Intelligent self-diagnosing and sparing light emitting diodes

1992-07-31

1993-12-07

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Using radiant energy

324158R, 340642, G01R 31308

Patent

active

052686353

ABSTRACT:
Visual indication of an operational condition on a printed circuit board by utilizing a pair of LEDs for each operational indication and by utilizing each LED of a pair to verify that the other LED can emit light greater than a predefined level. In addition, if an error condition is determined to exist in a pair of LEDs, a central processor is notified of this fact to allow the error condition to be remedied. Further, if a failure is detected in the pair, both LEDs are utilized to indicate an operational condition on the printed circuit board. This increases the probability that the LED pair will be able to indicate the operational condition.

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