Bubble Pushing a directly applied to the De Morgan theorem of FIG logic technology.
1. Change the logic gate ( the AND and OR to the AND to OR ).
2. Add the bubble is not input in the input and output, and delete the original bubbles.
Can De Morgan's laws for the processing of logic gates, so that bubbles on the input or output, to satisfy the condition signal, rather than a specific logical function.
Active low signal should be connected to the logic gate input bubbles.
