Communication system utilizing frequency differential time delay

Claim 1

IN A COMMUNICATION SYSTEM HAVING A TRANSMITTER AND A RECEIVER OPERATIVELY CONNECTED BY A COMMUNICATION LINK, APPARATUS FOR OPERATING UPON THE MESSAGE SIGNAL AT THE TRANSMITTER ACCORDING TO A FIRST TRANSFORM TO DERIVE A TRANSMITTED SIGNAL, AND APPARATUS FOR OPERATING UPON THE TRANSMITTED SIGNAL AT THE RECEIVER ACCORDING TO A SECOND TRANSFORM WHICH IS THE INVERSE OF SAID FIRST TRANSFORM TO RE-ESTABLISH THE MESSAGE SIGNAL COMPRISING: (A) A SIGNAL STORAGE MEDIUM ASSOCIATED WITH SAID TRANSMITTER AND CONTINUOUSLY MOVABLE AT A UNIFORM VELOCITY ALONG A FIXED PATH SERIALLY PAST A SUCCESSION OF SIGNAL RECORDING INSTRUMENTALITIES AND A SIGNAL SENSING INSTRUMENTALITY; (B) A PLURALITY OF FILTERS COMMONLY CONNECTED AND RECEPTIVE OF THE MESSAGE BEARING SIGNAL AT SAID TRANSMITTER, AND INDIVIDUALLY CONNECTED TO RESPECTIVE ONES OF SAID SIGNAL RECORDING INSTRUMENTALITIES, EACH OF SAID FILTERS BEING SO CONSTRUCTED AS TO PASS SIGNALS WITHIN A DIFFERENT PREDETERMINED FREQUENCY RANGE, WHEREBY EACH OF SAID RECORDING INSTRUMENTALITIES WILL RECORD SIGNALS HAVING A DIFFERENT FREQUENCY RANGE IN ACCORDANCE WITH THE FILTER CONNECTED THERETO; (C) A SIGNAL STORAGE MEDIUM ASSOCIATED WITH SAID RECEIVER AND CONTINUOUSLY MOVABLE AT A UNIFORM VELOCITY ALONG A FIXED PATH SERIATELY PAST A SIGNAL RECORDING INSTRUMENTALITY AND A SUCCESSION OF SIGNAL SENSING INTRUMENTALITIES; (D) MEANS OPERATIVELY CONNECTING THE SIGNAL SENSING INSTRUMENTALITY AT SAID TRANSMITTER AND THE SIGNAL RECORDING INSTRUMENTALITY AT SAID RECEIVER; FI-01 (E) A PLURALITY OF FILTERS AT SAID RECEIVER EACH INDIVIDUALLY CONNECTED TO A RESPECTIVE ONE OF SAID SIGNAL SENSING INSTRUMENTALITIES AND COMMONLY CONNECTED TO PRODUCE A COMPOSITE SIGNAL OUTPUT OF THE INDIVIDUAL OUTPUTS OF SAID FILTERS, EACH OF SAID FILTERS HAVING A FREQUENCY RESPONSE SUBSTANTIALLY IDENTICAL TO THAT OF A CORRESPONDING FILTER IN SAID TRANSMITTER; (F) THE INSTRUMENTALITIES AT SAID TRANSMITTER AND SAID RECEIVER BEING SO RELATIVELY DISPOSED THAT THE SUMS OF THE DISTANCES "A" AND "B" ARE CONSTANT FOR ALL PAIRS OF CORRESPONDING INSTRUMENTALITIES, THE DISTANCE "A" BEING THE DISTANCE SEPARATING ANY GIVEN ONE OF THE RECORDING INSTRUMENTALITIES FROM THE SENSING INSTRUMENTALITY AT THE TRANSMITTER MEASURED IN THE DIRECTION OF MOVEMENT OF SAID STORAGE MEDIUM, THE DISTANCE "B" BEING THE DISTANCE SEPARATING THE RECORDING IN STRUMENTALITY AT SAID RECEIVER FROM ANY GIVEN ONE OF THE SENSING INSTRUMENTALITIES MEASURED IN THE DIRECTION OF MOVEMENT OF SAID STORAGE MEDIUM, AND CORRESPONDING PAIRS OF INSTURMENTALITIES CONSISTING OF AN INSTRUMENTALITY AT THE TRANSMITTER AND ONE AT THE RECEIVER EACH CONNECTED TO LIKE FILTERS.