Patent ID: 8113263
Filing Date: 2012-02-14
Classification: E05F,E05Y

Abstract:
1. In a motorized operator for moving a barrier between open and closed positions, a motor, a transmission drivenly connected to said motor, a barrier operably connected to said transmission for movement between open and closed positions in response to operation of said motor, and a controller; said controller including a rotatable magnetic sensor operably connected to said operator to directly sense an angular position of a rotatable magnet of said sensor, and thereby make a direct determination of a position of said barrier and derive speed of said barrier from the determination of the position of said barrier; a first microcontroller in communication with a sensor circuit of said rotatable magnetic sensor for receiving signals output from said sensor circuit and providing corresponding barrier position signals for effecting stopping movement of said barrier at one of an open limit position, a closed limit position, and a midstop position; and a second microcontroller operably connected to said first microcontroller for communicating position limit values to said first microcontroller for said one of said open position, said closed position and said midstop position.