Hybrid computer to make dynamic and static seismic record corrections

Claim 1

IN APPARATUS FOR CORRECTING A SIGNAL FOR TIME LAG DUE TO RECEPTION OF SAID SIGNAL AT A LOCATION REMOVED FROM THE SOURCE OF SAID SIGNAL, SAID TIME LAG BEING A KNOWN TIME FUNCTION WITH A SINGLE RATE OF CHANGE AT EACH VALUE OF TIME, AND IN WHICH THE AMPLITUDE OF SAID SIGNAL IS REPEATEDLY SAMPLED AT SUBSTANTIALLY EQUAL TIME INTERVALS AND A QUANTITY PROPORTIONAL TO EACH SUCH SAMPLED AMPLITUDE IS TEMPORARILY AND INDIVIDUALLY STORED IN SEQUENCE IN A CORE STORAGE UNIT, THE IMPROVEMENT COMPRISING (1) A PLURALITY OF SUBSTANTIALLY FIXED-FREQUENCY OSCILLATORS EACH OF A DIFFERENT FREQUENCY, (2) A FREQUENCY SELECTOR UNIT FOR CONNECTING EACH OF SAID PLURALITY OF OSCILLATORS ALONE AND IN SEQUENCE FROM HIGHEST TO LOWEST FREQUENCY TO SAID CORE STORAGE UNIT TO UNLOAD THE QUANTITIES STORED IN SAID STORAGE UNIT IN SEQUENCE, AND AT A RATE DETERMINED BY THE FREQUENCY OF THE CONNECTED OSCILLATOR, AND (3) MEANS FOR CONTROLLING THE SWITCHING SEQUENCE OF SAID FREQUENCY SELECTOR UNIT AS A PREDETERMINED FUNCTION OF TIME, WHEREBY THE SAMPLE RATE OF WITHDRAWAL IS DIRECTLY RELATED TO SAID TIME LAG.