Integrator-digitizer for fluctuating data

Claim 1

AN INTEGRATOR-DIGITIZER FOR FLUCTUATING DATA WHICH COMPRISES: (A) A VOLTAGE-TO-FREQUENCY CONVERTER ADAPTED FOR CONNECTION TO A SOURCE OF A SIGNAL OF VARYING VOLTAGE FOR GENERATING ELECTRICAL PULSES AT A RATE DETERMINED BY THE VOLTAGE OF SAID SIGNAL, (B) A COUNTER HAVING A PLURALITY OF DIGIT POSITIONS CONNECTED TO CONVERTER FOR COUNTING SAID PULSES, (C) A MEMORY UNIT HAVING A DIGIT POSITION CORRESPONDING TO EACH DIGIT POSITION OF THE COUNTER AND CONNECTED THERETO BY A PLURALITY OF CIRCUITS, THERE BEING AT LEAST ONE SAID CIRCUIT FOR EACH SAID DIGIT POSITION OF THE COUNTER, (D) GATING MEANS FOR THE TRANSFER OF DATA FROM THE COUNTER TO THE MEMORY UNIT SIMULTANEOUSLY VIA SAID CONNECTING CIRCUITS, (E) DIFFERENTIATOR SENSING MEANS, SAID SENSING MEANS INCLUDING AN RC NETWORK AND A DIFFERENTIATOR AMPLIFIER MEANS, THE INPUT OF SAID DIFFERENTIATOR AMPLIFIER MEANS BEING COUPLED TO SAID RC NETWORK, SAID DIFFERENTIATOR AMPLIFIER MEANS DETECTING THE START OF A CHANGE IN SAID SIGNAL VOLTAGE IN A PREDETERMINED DIRECTION, (F) CONTROL MEANS RESPONSIVE TO SAID SENSING MEANS FOR OPERATING SAID GATING MEANS TO TRANSFER DATA TO THE MEMORY UNIT UPON DETECTION OF SAID START, AND (G) MEANS FOR RECORDING THE DATA IN THE MEMORY UNIT FOLLOWING EACH TRANSFER OF DATA THERETO.