DEVICE FOR TRANSMISSION OF DIGITAL SIGNAL INTO TWO-WIRE COMMUNICATION LINE Russian patent published in 1994 - IPC

FIELD: electric communication. SUBSTANCE: device for transmission of digital signal into two-wire communication line has first and second amplifiers 1, 2, first, second and third AND gates 3, 4, 7, line transformer 5, output wires 6, NOT gate 8, information input wire 9, input wire 10 of cycle synchronization, input wire 11 of clock pulses, decoder 12, modulo two adder 13, pulse distributor 14, first and second circuits 15, 16 of integrating feedback. Insertion into device of decoder, modulo two adder, pulse distributor, first and second circuits of integrating feedback provides for reduced radio frequency radiation with simultaneous increase of noise immunity. EFFECT: reduced radio frequency radiation, increased noise immunity. 2 dwg