START-STOP COMMUNICATION SYSTEM Russian patent published in 2010 - IPC H04L25/38 

FIELD: radio engineering.

SUBSTANCE: start-stop communicaton system comprises the following components on transmitting side - source of information (1), unit of signal generation (2), the first mixer (10), the first generator of intermediate frequency (12), transmitter (11), communication line (52), the first frequency synthesiser (13), unit of signal generation includes shift register (3), coding device (4), multiplexor (5), phase manipulator (6), the first clock pulse generator (7), generator of pseudorandom sequence (PRSG) (8), key (9), on receiving side: receiver (14), the second mixer (15), controlled amplifier (16), phase changer (21), two multipliers (17), (19), two low-pass filters (18), (20), the second generator of intermediate frequency (50), the second frequency synthesiser (51), voltage controlled generator (49), unit of signal processing (22), which includes the following components: the third multiplier (30), two non-linear elements (23), (29), the third low pass filter (25), summator (24), logarithmic cascade (26), amplifier (27), integrating link (28), interrupter (31), accumulator (32), two threshold units (33), (43), two differentiating cascades (34), (44), two pulse generators (35), (45), inverter (42), circuit AND (39), two OR circuits (36), (40), circuit AND-NOT (47), solving device (38), RS-trigger (46), the second clock pulse generator (37) and decording device (41).

EFFECT: improved noise immunity of signal reception, detection of error with availability of noise and provision of signals reception with quite a high level.

3 dwg