FIELD: data transmission. SUBSTANCE: process includes generation of first and second analog signals from first and second sequences of digital data readings on sending end, first analog signal being shaped from difference in values of digital data readings of first sequence and values of digital data readings of second sequence taken at points of digital data readings of first sequence, and second analog signal being shaped from digital data readings of second sequence taken at points of digital data readings of second sequence residing between points of digital data readings of first sequence, whereupon first and second analog signals are summed up and total analog signal is conveyed to communication line; on receiving end first sequence of digital data readings is recovered by digitizing total analog signal by clock frequency; then first sequence of digital data readings is converted by means of preset function into analog signal of first sequence, mentioned first-sequence analog signal is subtracted from total analog signal, and second sequence of digital data readings is recovered from difference analog signal obtained. Two types of preset functions of readings are proposed for implementing this process. EFFECT: enhanced transmission speed or throughput capacity of communication line. 3 cl, 6 dwg
