Abstract: A control device for garage door opener to provide automatic reclose and safety reverse if obstruction occurs is disclosed. Photoelectric sensors are positioned across the door opening to detect the passage of a vehicle through the door and signal the device to reclose the door. The sensors also detect obstruction and reverse closing movement of the door or, otherwise, disable activation of movement. An oscillator causes the door to reclose if the door remained open for a predetermined time interval. Safety warning signal is generated shortly before the oscillator controlled reclosure.

Abstract: A garage door control device that will automatically open or close depending upon conditions, the device having a motion detector responsive to vehicle space for actuating security lighting and warning measures, and a sound detector coacting with the motion detector and a garage entry door sensor to provide enablement of the door closure activator during respective exiting and non-exiting modes.