FIELD: telephone communication networks. SUBSTANCE: in communication systems where data are transmitted over subscriber lines these data are processed differently to analog voice signals transferred simultaneously. To this end use is made of analog-to-digital converters having higher sampling frequency where coding is made in compliance with linear characteristic. EFFECT: improved data transfer conditions using analog subscriber lines of telephone communication system. 4 cl, 1 dwg
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Authors
Dates
2003-09-27—Published
1999-01-14—Filed