system will move to an express down triggered state 114 and will return to the express down state 120 unless a cancel signal is received the cancel signal is detected by the current sensor due to either a short or stall or a time out period being sensed or executed by the logic circuit 50 usually the window closing will indicate a stall condition being recognized by the current sensor from the express down state 120 the operator can cancel by tapping the up toggle 124 or the down toggle 122 or when a positive cancel signal is sensed 124 fig4 b similarly comprises a state diagram illustrating the method of operating for the system when an up signal is received from idle state 100 the window can be moved up at state 130 manually when the operator indicates an up signal 132 and the system senses no obstacle the system will remain in manual up as per loop 132 until the operator releases the up toggle 134 or until an obstruction is sensed 136 or a panic state is indicated overriding the anti trap sensor 138 when an express up trigger is sensed 140 the system will move into the express up auto up state 142 and will remain there until either a cancel 144 or an operator stop signal 146 is sensed it should be noted that in either the manual up state 130 the.