With a regular trigger you must pull the trigger to fire a single round then release the trigger so it can move forward and “reset” to be ready for another pull to fire another single round. With a Forced Reset Trigger the trigger is “forced” into the forward “reset” position even if you do not release the pressure applied to the trigger. It is still a one round fired per one pull of the trigger ratio it just speeds the process up dramatically by forcing the trigger into the reset position. A binary trigger fires once when the trigger is pulled and fires again when the trigger is released.
https://www.firearmspolicy.org/
