SPEECH/DATA TRANSMISSION SYSTEM Russian patent published in 1998 - IPC

FIELD: communication equipment, information transmission over communication channels in public communication network. SUBSTANCE: proposed transmission system has room 1 of subscribers that includes low-frequency subscriber 2, first low-frequency filter 3, high-frequency subscriber 15, first analog-to-digital/digital-to- analog converter 16, communication lines 4, 11, 13, room of automatic telephone exchanges 5, 12, 14 including commutation field 6, second low-frequency filter 7, digital transmission system 8, statistic multiplexer 9, equipment 10 of line path, second high-frequency filter 18, second analog-to-digital/digital-to- analog converter 19. EFFECT: increased informativity and speed of transmission over communication channels given by public communication network. 1 dwg