US 52151000 A description fig1 shows an embodiment of a remote controlled garage door system 1 of the present invention used for remotely automatically activating opening and closing a garage door the system described hereinafter can also be used as a remote control system for actuating a gate or virtually any other type of movable barrier system 1 comprises a plurality of transmitters 40 and power head operator 20 normally suspended from the ceiling of the garage rail 22 extends from power head 20 and is secured to the wall above the garage door 24 a first end of door arm 26 is joined to door 24 and a second end of door arm 26 is adapted to reciprocate along the length of rail 22 power head 20 contains a drive mechanism 64 as is known in the art for reciprocatively moving by chain not shown along rail 22 for opening and closing garage door 24 the drive mechanism 64 can be activated in conventional fashion by pressing button 30 of wall unit 31 alternatively the drive mechanism 64 can be remotely activated by one of the transmitters 40 which upon actuation transmit coded radio frequency signals to a receiver 42 fig2 in power head operator 20 all conventionally known the system of the present invention is a learn type system by which the receiver 42 is effected to alternate between a program or learn mode during which codes or coded values are created and.