Chroniton generator

A chroniton generator was technology used to generate chronitons.

In 2374, the crew of Deep Space 9 used a chroniton generator to free Kira Nerys and Jake Sisko from the control of the Prophet and Pah-wraith that had possessed them during the Reckoning. In the end, it was not Benjamin Sisko, Jadzia Dax or Worf who engaged the generator, but Kai Winn Adami. 

The Caeliar used chroniton generators.