Ring trip detector circuit

Details Ring trip detector circuit Ring trip detector circuit

1978-12-29

1980-11-18

Robinson, Thomas A.

179 84R, H04M 304

Patent

active

042347629

ABSTRACT:
A ring trip detection circuit is disclosed for a remotely generated ringing signal in a subscriber loop carrier system. The ring trip detection circuit is enabled only during the high voltage half-cycle of the ringing signal to increase ring trip detection sensitivity and reduce the size and complexity of the ring trip detection circuit.

REFERENCES:
patent: 3720793 (1973-03-01), Hofmann
patent: 4071709 (1978-01-01), Lee et al.
patent: 4126765 (1978-11-01), Calder et al.

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