INTERFACE APPARATUS FOR COMPUTER INCLUDING AN INTEGRATOR CIRCUIT WHICH OPERATES TO PERMIT TRANSFER BETWEEN AUTOMATIC AND MANUAL CONTROL

摘要

An apparatus is disclosed, including means to charge a capacitor and means to prevent leakage of the charge on the capacitor, to cause proper transfer of control, of the position of a tool or to change a step of a process, from a computer to a manual or automatic controller and in the reverse direction. The apparatus includes an integrator circuit which can be converted by proper manipulation of switches into a voltage following circuit.