SYSTEM AND METHOD FOR DRIVING BI-COLOR LED
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United States of America Patent
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Issued Date -
Nov 8, 2007
app pub date -
May 4, 2006
filing date -
May 4, 2006
priority date (Note) -
Abandoned
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Abstract
A method of driving LED pairs comprising: providing a plurality of LED pairs each exhibiting a parallel reverse anode to cathode arrangement and each comprising a first LED and a second LED; receiving a time varying electrical signal commonly at the anode of the first LED of each of the LED pairs; and individually driving the anode of the second LED each of the provided LED pairs to one of a high value and a low value, wherein the received time varying electrical signal exhibits a high value operative to illuminate the first LED of each of the LED pairs when the anode of the second LED is driven to a low level, and a low voltage level operative to light the second LED of each of the LED pairs when the anode of the second LED is driven to a high level.
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