Information handling system

Claim 1

AN INFORMATION SYSTEM FOR CONVERTING ANALOG INFORMATION IN THE FORM OF A PRINTED TWO DIMENSIONAL CURVE ON A RECORD STRIP WHEREIN THE LATERAL DEPARATURE OF SAID CURVE FROM A LONGITUDINAL REFERENCE LINE REPRESENTS AN ANALOG SIGNAL WHICH IS THE STORED INFORMATION, INTO DIGITAL INFORMATION, COMPRISING: (A) MEANS FOR TRANSPORTING SAID RECORD STRIP IN A DIRECTION PARALLEL TO SAID REFERENCE LINE AT A VARIABLE LOW SPEED SUITABLE FOR TRACING SAID CURVE, (B) INDEX MEANS CAPABLE OF MOVEMENT IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID REFERENCE LINE SO AS TO TRACE SAID CURVE WHILE SAID STRIP IS BEING TRANSPORTED LONGITUDINALLY, (C) MEANS FOR GENERATING A CONSTANT AMPLITUDE CARRIER SIGNAL, THE PERIOD OF WHICH IS A FUNCTION OF THE RATE OF TRANSPORT OF SAID STRIP, (C) MEANS TO AMPLITUDE MODULATE SAID CARRIER SIGNAL AS A FUNCTION OF THE ANALOG SIGNAL TRACED BY SAID INDEX MEANS, WHEREBY AN AMPLITUDE MODULATED ANALOG ELECTRICAL SIGNAL IS PROVIDED WHICH IS A FUNCTION OF SAID DEPARTURE OF SAID CURVE, (D) INTERMEDIATE STORAGE MEANS COOPERATING WITH SAID TRANSPORT MEANS FOR RECORDING IN REPRODUCIBLE FORM SAID AMPLITUDE MODULATED ANALOG ELECTRICAL SIGNALS, AT THE VARIABLE LOW SPEED OF TRANSPORT OF SAID STRIP, (E) REPRODUCER MEANS COOPERATING WITH SAID STORAGE MEANS FOR REPRODUCING SAID RECORDED INFORMATION AT HIGH SPEED IN THE FORM OF AMPLITUDE MODULATED ANALOG ELECTRICAL SIGNALS, AND (F) HIGH SPEED DIGITIZING MEANS FOR CONVERTING SAID AMPLITUDE MODULATED ANALOG ELECTRICAL SIGNALS TO DIGITAL ELECTRICAL SIGNALS.