Figure 1: Central pattern generator in described via coupled oscillators.
Definition: Central pattern generators (CPGs) are neural networks capable of producing coordinated patterns of rhythmic activity without any rhythmic inputs from sensory feedback or from higher control centers. [1]
A hardware implementation of CPG: Central Pattern Generator as a part of the Electronic control loop. This frame work has been used in Stoch.
Figure 2: Central pattern Generator as a part of robot framework