Digital communication system using half-cycle signals at bit transistions

Claim 1

A DIGITAL COMMUNICATION SYSTEM FOR TRANSMITTING BINARY INFORMATION COMPRISING TRANSMITTING AND RECEIVING MEANS CONNECTED BY A COMMUNICATION CHANNEL, SAID TRANSMITTING MEANS INCLUDING MEANS FOR RECEIVING TWO-LEVEL BINARY BIT INFORMATION HAVING ONE LEVEL FOR ONE TYPE OF BITS AND ANOTHER LEVEL FOR THE OPPOSITE TYPE OF BITS, IN WHICH THE IMPROVEMENT COMPRISES (A) MEANS FOR CONVERTING SAID BINARY BITS INTO RESPECTIVE SUBSTANTIALLY FULL-CYCLE SIGNALS WHOSE PERIODS ARE SUBSTANTIALLY EQUAL TO THE BINARY BIT PERIOD AND OF OPPOSITE PHASE FOR OPPOSITE TYPES OF BITS, (B) WHEREBY SUBSTANTIALLY HALF-CYCLE SIGNALS OF BIT PERIOD LENGTH ARE PRODUCED AT TRANSITIONS FROM ONE BIT TYPE TO THE OTHER WHICH ARE OF OPPOSITE POLARITY FOR OPPOPSITE TRANSITION DIRECTIONS, (C) MEANS FOR TRANSMITTING SAID FULL-CYCLE AND HALFCYCLE SIGNALS TO SAID RECEIVING MEANS, (D) AND MEANS AT SAID RECEIVING MEANS FOR PRODUCING A TWO-LEVEL BINARY SIGNAL INCLUDING MEANS RESPONSIVE TO SAID HALF-CYCLE SIGNALS FOR PRODUCING DIFFERENT SIGNAL LEVELS FOR OPPOSITE POLARITIES OF THE HALF-CYCLE SIGNALS.