US Patent 9150263 Self-propelled device implementing three-dimensional control

A self-controlled device maintains a frame of reference about an x-, y- and z-axis. The self-controlled device processes an input to control the self-propelled device, the input being based on the x- and y-axis. The self-propelled device is controlled in its movement, including about each of the x-, y- and z-axis, based on the input.