[KenWittlief]

if you want to know how the segway works, get the patent and read it.

The patent must fully disclose the operation of the system, because that is what is being patented, not just what the system does, but how it does it.

For this reason it is necessary for the patent to fully explain how it works. Otherwise, whenever someone else came up with a similar idea, Segway could claim "thats how we do it, so we have a patent on that...."

your patent only covers your invention as you describe it. If someone else can come up with a different way to make a system that performs the same function, they are not violating your patent.