1982-07-07
1985-06-18
Brown, Thomas W.
H04M 322
Patent
active
045242461
ABSTRACT:
A subscriber line interface circuit using auxiliary current detectors in the legs of a bridge whose input is the subscriber load and a control circuit connected to the auxiliary detectors for determining the polarity of the loop current and insuring that a directional current detector is in a proper mode for detecting the loop current.
REFERENCES:
patent: 3042816 (1962-07-01), Aagaard
patent: 3783198 (1974-01-01), Couch
patent: 4007335 (1977-02-01), Hetherington et al.
patent: 4020294 (1977-04-01), Kitajewski et al.
patent: 4087646 (1978-05-01), Brolin et al.
patent: 4087647 (1978-05-01), Embree et al.
patent: 4099032 (1978-07-01), Roge et al.
patent: 4118597 (1978-10-01), Proctor et al.
patent: 4174467 (1979-11-01), Ferrieu
patent: 4178485 (1979-12-01), Cowpland et al.
patent: 4199664 (1980-04-01), Grange et al.
patent: 4211896 (1980-07-01), Ferrieu
patent: 4234763 (1980-11-01), Dijkmans et al.
patent: 4275277 (1981-06-01), Ferrieu
patent: 4289933 (1981-09-01), Henry
patent: 4292473 (1981-09-01), Venken et al.
patent: 4306118 (1981-12-01), Ciboulet et al.
patent: 4313034 (1982-01-01), Nijman et al.
patent: 4356354 (1982-10-01), Ferrieu
patent: 4385336 (1983-05-01), Takeshita et al.
"Monolithic Subscriber Line Circuit for PABX's", Picard et al., Fourth European Conference on Electrotechnics (Eurocon), Stuttgart, Germany, Mar. 1980, pp. 202-204.
Brown Thomas W.
Harris Corporation
LandOfFree
SLIC II--common-mode current rejection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with SLIC II--common-mode current rejection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SLIC II--common-mode current rejection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-980854