Communications system for transmitting and receiving data...

Details Communications system for transmitting and receiving data... Communications system for transmitting and receiving data...

H - Electricity

04

J

363/3

H04J 1/02 (2006.01) H04M 11/06 (2006.01)

Patent

CA 1222077

ABSTRACT A communications system for transmitting and receiving data and voice signals simultaneously on 2-wire signal lines, which superpose and extract a high frequency modulated data signal using a high frequency transformer which is coupled to the 2-wire signal line. The transformer has two windings which are short-circuited with respect to high frequency components, but which pass low frequency voice signals between the 2-wire signal line and a low frequency hybrid circuit.

470118

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