Low-level time division multiplex system

Claim 1

A TIME DIVISION MULTIPLEX SYSTEM FOR LOW-LEVEL ANALOG SIGNALS COMPRISING: A PLURALITY OF INPUT CHANNELS, EACH CHANNEL INCLUDING MEAN, EFFECTIVE WHEN ENERGIZED, FOR SAMPLING THE ANALOG SIGNAL CONVEYED THEREBY; MEANS FOR SEQUENTIALLY ENERGIZING SAID SAMPLING MEANS, EACH FOR A PREDETERMINED PERIOD OF THE SAME DURATION FOR ALL OF THE CHANNELS; AN OUTPUT CHANNEL INCLUDING MAGNETIC CORE MEANS HAVING PRIMARY WINDING MEANS AND SECONDARY WINDING MEANS; SWITCHING MEANS COUPLED TO EACH OF SAID SAMPLING MEANS FOR ALTERNATELY APPLYING THE SIGNAL SAMPLED THEREBY DURING EACH PERIOD TO RESPECTIVE FIRST AND SECOND EQUAL PORTIONS OF SAID PRIMARY WINDING MEANS FOR EQUAL PARTS OF THE PERIOD TO REVERSE THE POLARITY OF THE SIGNAL APPLIED TO SAID PRIMARY WINDING MEANS AT THE CONCULSION OF EACH PART OF THE PERIOD, SO THAT SAID MAGNETIC CORE MEANS IS SUBJECTED TO FLUX REVERSAL OF EQUAL MAGNITUDE AND DURATION DURING EACH PERIOD AND IS ABSENT ANY RESIDUAL MAGNETISM AT THE CONCLUSION OF EACH PERIOD, THE SIGNAL INDUCED IN SAID SECONDARY WINDING MEANS DURING EACH PERIOD THEREBY HAVING AN AMPLITUDE AND PHASE REPRESENTATIVE RESPECTIVELY ONLY OF THE MAGNITUDE AND POLARITY OF THE ANALOG SIGNAL FROM WHICH IT IS DERIVED; MEANS COUPLED TO SAID SECONDARY WINDING MEANS OF AMPLIFYING EACH INDUCED SIGNAL; SYNCHRONOUS CONVERTER MEANS FOR CONVERTING EACH AMPLIFIED SIGNAL CYCLE TO A D.C. PULSE OF MAGNITUDE AND POLARITY PROPORTIONAL TO THE AMPLITUDE AND PHASE OF SAID AMPLIFIED SIGNAL CYCLE; AND MEANS FOR SYNCHRONIZING THE OPERATION OF SAID SEQUENTIALLY ENERGIZING MEANS, SAID SWITCHING MEANS AND SAID SYNCHRONOUS CONVERTER MEANS.