Title:
CIRCUIT FOR CONVERTING ANALOG SIGNAL TO DIGITAL SIGNAL AND VICE VERSA
Document Type and Number:
Japanese Patent JPS5423368
Kind Code:
A
Abstract:
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.
Inventors:
PEETAA HIRUSHIYUMAN
ERUNSUTO HEEFUAA
ERUNSUTO HEEFUAA
Application Number:
JP8929678A
Publication Date:
February 21, 1979
Filing Date:
July 21, 1978
Export Citation:
Assignee:
SIEMENS AG
International Classes:
H03M1/00; H04B14/00; H03M1/02; H04B14/04; H04M3/42; H04M3/56; H04Q11/04; (IPC1-7): H03K13/02