Switching servo system with anti-hunt feedback

Claim 1

IN A CLOSED LOOP SYSTEM FOR POSITIONING A MOVABLE INSTRUMENTALITY TO CORRECT AN ERROR OF DEPARTURE FROM A DESIRED CONDITION, SAID ERROR BEING AN INPUT TO A SUITABLE ERROR SENSING ELEMENT WHICH HAS AS AN OUTPUT AN ELECTRICAL SIGNAL INDICATIVE OF SUCH ERROR, SAID SIGNAL INCREASING IN MAGNITUDE WITH INCREASE IN SAID ERROR, A CIRCUIT CONNECTING SAID OUTPUT OF SAID SENSING ELEMENT TO AN INPUT TO AN ON-OFF POWER CONTROLLING DEVICE, SAID POWER CONTROLLING DEVICE OPERATING IN RESPONSE TO SAID SIGNAL TO EFFECT ON-OFF ENERGIZATION AND DEENERGIZATION OF AN INPUT OF AN ACTUATOR WITH POWER DERIVED FROM A POWER SOURCE OF SUITABLE CHARACTERISTICS, SAID ACTUATOR BEING ADAPTED TO OPERATE AS A RESULT OF SUCH ENERGIZATION TO POSITION SAID MOVABLE INSTRUMENTALITY AND THEREBY CAUSE A REDUCTION OF SAID ERROR, THE IMPROVEMENT COMPRISING: MEANS OPERABLE UPON ENERGIZATION OF SAID ACTUATOR INPUT FOR EFFECTING, SUBSTANTIALLY THROUGHOUT THE ACCELERATION TRANSIENT OF THE ACTUATOR, AND AS A FUNCTION OF TIME OF CONTINUED ENERGIZATION OF SAID ACTUATOR, CONTINUOUSLY DIMINISHING GAIN OF THAT PORTION OF THE SYSTEM SERVING TO TRANSMIT THE ERROR AND SIGNAL