Apparatus and method for measuring amplitudes at selected points in recurrent electrical signal waveforms

Claim 1

A METHOD OF COMPRISING THE AMPLITUDES AT SELECTED POINTS IN A RECURRENT ELECTRICAL SIGNAL WAVEFROM WHICH COMPRISES A NARROW PULSE AND A SUBSTANTIALLY RECTANGULAR BAR PULSE OF DURATION SUBSTANTIALLY GREATER THAN THAT OF SAID NARROW PULSE, SAID METHOD COMPRISING THE STEPS OF: GENERATING SAMPLING PULSES, SAID SAMPLING PULSES BEING EACH OF DURATION SUBSTANTIALLY LESS THAN THAT OF SAID NARROW PULSE, AND WHICH RECUR IN GROUPS OF AT LEAST TWO AT THE SAME FREQUENCY AS SAID RECURRENT SIGNAL WAVEFORM; ADJUSTING THE PHASE OF ONE OF SAID SAMPLING PULSES TO SAMPLE SAID BAR; AND ADJUSTING THE PHASE OF ANOTHER OF SAID SAMPLING PULSES TO SAMPLE SAID NARROW PULSE AT THE POINT OF MAXIMUM AMPLITUDE THEREOF, TO PROVIDE PULSES CONSTITUTING SAMPLES; INCREASING THE DURATION OF SAID PULSES CONSTITUTING SAMPLES, WITHOUT SUBSTANTIALLY CHANGING THE AMPLITUDE RATIO THEREOF; AND COMPARING THE AMPLITUDES OF THE PULSES OF INCREASED DURATION.

Claim 2

A METHOD OF COMPRISING THE AMPLITUDES AT SELECTED POINTS IN A RECURRENT ELECTRICAL SIGNAL WAVEFROM WHICH COMPRISES A NARROW PULSE AND A SUBSTANTIALLY RECTANGULAR BAR PULSE OF DURATION SUBSTANTIALLY GREATER THAN THAT OF SAID NARROW PULSE, SAID METHOD COMPRISING THE STEPS OF: GENERATING SAMPLING PULSES, SAID SAMPLING PULSES BEING EACH OF DURATION SUBSTANTIALLY LESS THAN THAT OF SAID NARROW PULSE, AND WHICH RECUR IN GROUPS OF AT LEAST TWO AT THE SAME FREQUENCY AS SAID RECURRENT SIGNAL WAVEFORM; ADJUSTING THE PHASE OF ONE OF SAID SAMPLING PULSES TO SAMPLE SAID BAR; AND ADJUSTING THE PHASE OF ANOTHER OF SAID SAMPLING PULSES TO SAMPLE SAID NARROW PULSE AT THE POINT OF MAXIMUM AMPLITUDE THEREOF, TO PROVIDE PULSES CONSTITUTING SAMPLES; INCREASING THE DURATION OF SAID PULSES CONSTITUTING SAMPLES, WITHOUT SUBSTANTIALLY CHANGING THE AMPLITUDE RATIO THEREOF; AND COMPARING THE AMPLITUDES OF THE PULSES OF INCREASED DURATION.