Automatic landing approach system for aircraft

Claim 1

AUTOMATIC LANDING APPROACH CONTROL SYSTEM FOR AIRCRAFT WHICH IS USED IN CONJUNCTION WITH A TRANSMITTING MEANS LOCATED ON A LANDING AREA FOR PROVIDING ELECTRICAL SIGNALS ALONG A DESIRED PATH WHEREIN THE AIRCRAFT HAS MEANS THEREIN FOR EMITTING A FIRST ELECTRICAL SIGNAL IN RESPONSE TO THE LATERAL DEVIATION OF SAID AIRCRAFT FROM SAID DESIRED PATH, COURSE SELECT MEANS TO DETECT DEVIATION OF SAID AIRCRAFT FROM A SELECTED COURSE AND EMIT A SECOND ELECTRICAL SIGNAL IN RESPONSE TO THE DEVIATION OF SAID AIRCRAFT FROM SAID SELECTED COURSE AND ACCELERATION DETECTION MEANS TO DETECT LATERAL ACCELERATIONS OF SAID AIRCRAFT AND EMIT A THIRD ELECTRICAL SIGNAL IN RESPONSE TO SAID LATERAL ACCELERATIONS, COMPRISING: CONTROL MEANS RESPONSIVE TO SAID FIRST SIGNAL TO CONTROL THE MOVEMENT OF SAID AIRCRAFT ABOUT THE ROLL AXIS OF SAID AIRCRAFT IN A DIRECTION TO CAUSE SAID AIRCRAFT TO SLIP BACK TOWARDS SAID PATH. MONITOR MEANS TO MONITOR SAID FIRST ELECTRICAL SIGNAL AND DIVERT ANY EXCESS SIGNAL OVER A PREDETERMINED MAGNITUDE, SUPPRESSING MEANS TO SUPPRESS SAID THIRD ELECTRICAL SIGNAL BELOW A GIVEN MAGNITUDE, MEANS TO COMBINE SAID EXCESS SIGNAL, SAID SECOND ELECTRICAL SIGNAL AND THE OUTPUT OF SAID SUPPRESSING MEANS TO CONTROL SAID AIRCRAFT ABOUT THE YAW AXIS, AND MEANS TO AUGMENT SAID SECOND ELECTRICAL SIGNAL TO REDUCE THE DEVIATION OF SAID AIRCRAFT FROM SAID SELECTED COURSE.