Apparatus for classifying sporadically occurring different defects in material by converting defect caused output signals into a function of time

Claim 1

AN APPARATUS FOR CLASSIFYING A NUMBER OF SPORADICALLY OCCURRING DIFFERENT PHENOMENA IN A VARIABLE FUNCTION, SUCH AS DEFECTS IN A TEXTILE MATERIAL, INTO A LIKE NUMBER OF DIFFERENT DEFECT CLASSES, SAID APPARATUS COMPRISING MEANS FOR MEASURING SAID VARIABLE FUNCTION, SAID MEASURING MEANS INCLUDING A TEST PROBE THROUGH WHICH THE MATERIAL IS PASSED, SAID TEST PROBE HAVING AN EXTENSION LONGITUNDINALLY OF THE PASSING MATERIAL GREATER THAN THE LENGTH OF THE DEFECTS TO BE CLASSIFIED, MEANS FOR CONVERTING THE MEASURED VARIABLE FUNCTION INTO AN EQUIVALENT, VARIABLE, ELECTRICAL FUNCTION, ELECTRIC FILTER MEANS HAVING INPUTS CONNECTED IN PARALLEL AND CONNECTED TO THE OUTPUT OF SAID CONVERTING MEANS, EACH FILTER MEANS BEING ADAPTED TO SELECTIVELY PASS A SPECFIFE FOURIER COMPONENT OF THE FUNDAMENTAL FREQUENCY OF SAID ELECTRICAL FUNCTION, SAID COMPONENT REPRESENTING A CERTAIN PHENOMENON, AND INDICATOR MEANS INDIVIDUALLY CONNECTED TO THE OUTPUTS OF SAID FILTER MEANS AND INDIVIDUALLY INDICATING SAID SPECIFIC COMPONENTS, SAID FILTER MEANS INDIVIDUALLY COMPRISING A TRANSITTIME-DISCRIMINATOR FOR DISCRIMINATING PULSES WITH A GIVEN TIME DURATION BETWEEN THEIR LEADING- AND TRAILING EDGES FOR CLASSIFYING DIFFERENT DEFECTS WHICH ARE SHORTER THAN THE TEST PROBE.

Claim 2

AN APPARATUS FOR CLASSIFYING A NUMBER OF SPORADICALLY OCCURRING DIFFERENT PHENOMENA IN A VARIABLE FUNCTION, SUCH AS DEFECTS IN A TEXTILE MATERIAL, INTO A LIKE NUMBER OF DIFFERENT DEFECT CLASSES, SAID APPARATUS COMPRISING MEANS FOR MEASURING SAID VARIABLE FUNCTION, SAID MEASURING MEANS INCLUDING A TEST PROBE THROUGH WHICH THE MATERIAL IS PASSED, SAID TEST PROBE HAVING AN EXTENSION LONGITUNDINALLY OF THE PASSING MATERIAL GREATER THAN THE LENGTH OF THE DEFECTS TO BE CLASSIFIED, MEANS FOR CONVERTING THE MEASURED VARIABLE FUNCTION INTO AN EQUIVALENT, VARIABLE, ELECTRICAL FUNCTION, ELECTRIC FILTER MEANS HAVING INPUTS CONNECTED IN PARALLEL AND CONNECTED TO THE OUTPUT OF SAID CONVERTING MEANS, EACH FILTER MEANS BEING ADAPTED TO SELECTIVELY PASS A SPECFIFE FOURIER COMPONENT OF THE FUNDAMENTAL FREQUENCY OF SAID ELECTRICAL FUNCTION, SAID COMPONENT REPRESENTING A CERTAIN PHENOMENON, AND INDICATOR MEANS INDIVIDUALLY CONNECTED TO THE OUTPUTS OF SAID FILTER MEANS AND INDIVIDUALLY INDICATING SAID SPECIFIC COMPONENTS, SAID FILTER MEANS INDIVIDUALLY COMPRISING A TRANSITTIME-DISCRIMINATOR FOR DISCRIMINATING PULSES WITH A GIVEN TIME DURATION BETWEEN THEIR LEADING- AND TRAILING EDGES FOR CLASSIFYING DIFFERENT DEFECTS WHICH ARE SHORTER THAN THE TEST PROBE.