Telephonic communications – Subscriber line or transmission line interface
Patent
1996-02-26
1997-08-12
Brown, Thomas W.
Telephonic communications
Subscriber line or transmission line interface
379413, H04M 100
Patent
active
RE0355828
ABSTRACT:
A method of lowering the power absorbed by an interface circuit, in the "power-down" state thereof, as incorporated to a telephone exchange and connected to a telephone subscriber line, being of a type which comprises a monitoring circuit portion connected between the line and the exchange. The method involves the steps of,
REFERENCES:
patent: 4419542 (1983-12-01), Embree et al.
patent: 4908856 (1990-03-01), Poletto
SGS-Thomson Microelectronics, L3000, L3010, L3121, A Kit of Solid State Devices for Integrating The Subscriber Line Interface Circuit, Jun., 1986, 633-664.
Pariani Angelo
Rossi Walter
Saviotti Vanni
Brown Thomas W.
Dorny Brett N.
Driscoll David M.
Morris James H.
Saint-Surin Jacques M.
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