Pattern Generator

Pattern Generator is a quest item in Sonic Chronicles: The Dark Brotherhood.

Story
After the team found their fifth Eggman Device, Tails modified the devices to create the Pattern Generator. This device was unused until the team picked up a strong signal in the western area of Green Hill Zone. However, the signal was coming from behind a forcefield. Tails matched the frequency of the pattern generator to the frequency of the forcefield, disabling the forcefield.

Trivia

 * The Pattern Generator looks exactly like an Eggman Device.