Electronic directional error indicating system

Claim 1

A SYSTEM FOR DETECTING DIRECTION DEVIATIONS OF NAVIGABLE MEANS FROM A PREDETERMINED DIRECTION OF TRAVEL COMPRISING: FIRST AND SECOND MAGNETIC FIELD SENSING MEANS CARRIED BY SAID NAVIGABLE MEANS FOR DETECTING COMPONENTS OF THE EARTH''S AMBIENT HORIZONTAL MAGNETIC FIELD, THE AMPLITUDES OF DETECTED COMPONENTS BEING A FUNCTION OF THE DEGREE OF DIRECTIONAL DEVIATION OF SAID NAVIGABLE MEANS FROM SAID PREDETERMINED DIRECTION OF TRAVEL, SAID FIRST AND SECOND MAGNETIC FIELD SENSING MEANS RESPECTIVELY PROVIDING FIRST AND SECOND OUTPUT SIGNALS WHOSE AMPLITUDES ARE SUBSTANTIALLY PROPORTIONAL TO THE AMPLITUDES OF SAID DETECTED COMPONENTS OF THE EARTH''S AMBIENT HORIZONTAL MAGNETIC FIELD; FIRST AND SECOND AMPLIFYING MEANS RESPECTIVELY COUPLED TO SAID FIRST AND SECOND MAGNETIC FIELD SENSING MEANS FOR AMPLIFYING SAID FIRST AND SECOND OUTPUT SIGNALS TO PROVIDE FIRST AND SECOND AMPLIFIED SIGNALS, RESPECTIVELY; MEANS CONNECTED TO SAID FIRST AND SECOND AMPLIFYING MEANS FOR FEEDING BACK AT LEAST A PORTION OF SAID FIRST AND SECOND AMPLIFIED SIGNALS TO SAID FIRST AND SECOND MAGNETIC FIELD SENSING MEANS, RESPECTIVELY, FOR CAUSING SAID FIRST MAGNETIC FIELD SENSING MEANS AND SAID FIRST AMPLIFYING MEANS TO BECOME REGENERATIVE WHEN THE DIRECTIONAL DEVIATION OF SAID NAVIGABLE MEANS FROM SAID PREDETERMINED DIRECION OF TRAVEL IS IN ONE DIRECTION AND FOR CAUSING SAID SECOND MAGNETIC FIELD SENSING MEANS AND SAID SECOND AMPLIFYING MEANS TO BECOME REGENERATIVE WHEN SAID DIRECTIONAL DEVIATION IS IN A DIRECT OPPOSITE TO SAID ONE DIRECTION; AND UTILIZATION MEANS CONNECTED TO RECEIVE SAID FIRST AND SECOND AMPLIFIED SIGNALS FOR RESPONDING TO DIRECTIONAL DEVIATIONS OF SAID NAVIGABLE MEANS FROM SAID PREDETERMINED DIRECTION OF TRAVEL.

Claim 2

A SYSTEM FOR DETECTING DIRECTION DEVIATIONS OF NAVIGABLE MEANS FROM A PREDETERMINED DIRECTION OF TRAVEL COMPRISING: FIRST AND SECOND MAGNETIC FIELD SENSING MEANS CARRIED BY SAID NAVIGABLE MEANS FOR DETECTING COMPONENTS OF THE EARTH''S AMBIENT HORIZONTAL MAGNETIC FIELD, THE AMPLITUDES OF DETECTED COMPONENTS BEING A FUNCTION OF THE DEGREE OF DIRECTIONAL DEVIATION OF SAID NAVIGABLE MEANS FROM SAID PREDETERMINED DIRECTION OF TRAVEL, SAID FIRST AND SECOND MAGNETIC FIELD SENSING MEANS RESPECTIVELY PROVIDING FIRST AND SECOND OUTPUT SIGNALS WHOSE AMPLITUDES ARE SUBSTANTIALLY PROPORTIONAL TO THE AMPLITUDES OF SAID DETECTED COMPONENTS OF THE EARTH''S AMBIENT HORIZONTAL MAGNETIC FIELD; FIRST AND SECOND AMPLIFYING MEANS RESPECTIVELY COUPLED TO SAID FIRST AND SECOND MAGNETIC FIELD SENSING MEANS FOR AMPLIFYING SAID FIRST AND SECOND OUTPUT SIGNALS TO PROVIDE FIRST AND SECOND AMPLIFIED SIGNALS, RESPECTIVELY; MEANS CONNECTED TO SAID FIRST AND SECOND AMPLIFYING MEANS FOR FEEDING BACK AT LEAST A PORTION OF SAID FIRST AND SECOND AMPLIFIED SIGNALS TO SAID FIRST AND SECOND MAGNETIC FIELD SENSING MEANS, RESPECTIVELY, FOR CAUSING SAID FIRST MAGNETIC FIELD SENSING MEANS AND SAID FIRST AMPLIFYING MEANS TO BECOME REGENERATIVE WHEN THE DIRECTIONAL DEVIATION OF SAID NAVIGABLE MEANS FROM SAID PREDETERMINED DIRECION OF TRAVEL IS IN ONE DIRECTION AND FOR CAUSING SAID SECOND MAGNETIC FIELD SENSING MEANS AND SAID SECOND AMPLIFYING MEANS TO BECOME REGENERATIVE WHEN SAID DIRECTIONAL DEVIATION IS IN A DIRECT OPPOSITE TO SAID ONE DIRECTION; AND UTILIZATION MEANS CONNECTED TO RECEIVE SAID FIRST AND SECOND AMPLIFIED SIGNALS FOR RESPONDING TO DIRECTIONAL DEVIATIONS OF SAID NAVIGABLE MEANS FROM SAID PREDETERMINED DIRECTION OF TRAVEL.