Level correction circuit

Claim 1

A LEVEL CONNECTING DEVICE FOR CONVERTING SINGLE POLARITY ELECTRICAL SIGNALS OF VARYING LEVELS INTO BI-POLAR DIRECT CURRENT SIGNALS OF EQUAL POSITIVE AND NEGATIVE LEVELS COMPRISING: AN INPUT LINE ADAPTED TO RECEIVE SAID SINGLE POLARITY ELECTRICAL SIGNALS; A FIRST CIRCUIT PATH CONNECTED TO SAID INPUT LINE AND FURTHER COMPRISING IN SERIES RELATIONSHIP A FIRST INPUT CAPACITOR, A FIRST RESISTOR, A SECOND RESISTOR AND A FIRST UNILATERAL CONDUCTING DEVICE CONNECTED TO A FIRST SOURCE OF POTENTIAL AT ITS SECOND TERMINAL, SAID FIRST CIRCUIT PATH PRODUCING A POSITIVE DIRECT CURRENT LEVEL WITH RESPECT TO SAID FIRST POTENTIAL SOURCE LEVEL WHEN THE SIGNAL APPLIED TO SAID INPUT LINE CHANGES FROM A FIRST LEVEL TO A SECOND HIGHER LEVEL, SAID POSITIVE DIRECT CURRENT LEVEL HAVING A DURATION EQUAL TO THE DURATION SAID SINGLE POLARITY SINGLE REMAINS AT SAID SECOND LEVEL; A SECOND CIRCUIT PATH CONNECTED TO SAID INPUT LINE AND FURTHER COMPRISING IN SERIES RELATIONSHIP A SECOND INPUT CAPACITOR, SAID SECOND RESISTOR, SAID FIRST RESISTOR, AND A SECOND UNILATERAL CONDUCTING DEVICE CONNECTED TO A SECOND SOURCE OF POTENTIAL AT ITS SECOND TERMINAL, SAID SECOND CIRCUIT PATH PRODUCING A NEGATIVE DIRECT CURRENT LEVEL WITH RESPECT TO SAID SECOND POTENTIAL SOURCE LEVEL WHEN THE SIGNAL APPLIED TO SAID INPUT LINE CHANGES FROM SAID SECOND LEVEL TO SAID FIRST LEVEL, SAID NEGATIVE DIRECT CURRENT LEVLE HAVING A DURATION EQUAL TO THE DURATION SAID SINGLE POLARITY SIGNAL REMAINS AT SAID FIRST LEVEL; AND AN OUTPUT LINE CONNECTED TO THE JUNCTION OF SAID FIRST AND SAID SECOND RESISTORS.