Patent US 6,000,827

A system identifying device precisely represents as a mathematical model the features of a system such as a robot manipulator, various industrial plants, etc., and can be operated as hardware by identifying an object system over a neural network, thereby successfully identifying a non-linear system as well as a linear system. Furthermore, an adaptive control device can perform an online learning by using the identifying device to obtain a teaching signal to be used in operating the identifying device in an adaptive control device.