What's the difference between Jordan's black and red tongue and the trapeze sign?
There is not much difference. Jordan was originally a sub-brand of Nike. When the first year of Jordan 1 was launched, it was just an exclusive signature shoe specially made for Jordan. The trapeze logo is Jordan's exclusive logo, and later Jordan's brand and logo are independent and exclusive. In fact, the technology used in the shoes themselves is actually a patent applied by Nike, and so are the later shoes.