SCHALTUNGSANORDNUNG FUER FERNMELDEANLAGEN ANALOG- SIGNALEN IN DIGITAL-SIGNALEN UND ZUR UMSETZUNG VON DIGITAL-SIGNALEN IN ANALOG-SIGNALE

摘要

A circuit arrangement is disclosed for individual subscribers in a telecommunication set up. The circuit arrangement converts analog signals into digital signals and digital signals into analog signals. When operated in a conference connection, summation signals are received by a subscriber which contain the subscriber's own share. Output digital signals from the subscriber are stored and converted into an analog value and are then subtracted from the received summation signal converted into an analog value.