H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/67
H04M 7/00 (2006.01) H04M 19/00 (2006.01)
Patent
CA 1157978
LOOP SENSING CIRCUIT FOR USE WITH A SUBSCRIBER LOOP INTERFACE CIRCUIT ABSTRACT OF THE DISCLOSURE A loop sensing circuit is coupled between a solid state hybrid circuit that provides signal conversion between a pair of unidirectional transmission paths and a bidirectional subscriber loop. The loop sensing circuit includes placing respective protection resistors coupled in parallel with first and second sensing resistors between the hybrid and the subscriber loop terminals to provide a dc current path between the bidirectional subscriber loop and the hybrid circuit.
381771
Gowling Lafleur Henderson Llp
Motorola Inc.
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