Two-way amplifier arrangement

Details Two-way amplifier arrangement Two-way amplifier arrangement

1975-11-25

1981-07-14

Konick, Bernard

179 1CN, 179170R, H04M 356

Patent

active

042788439

ABSTRACT:
A two-way amplifier arrangement which automatically controls current flowing in the transmission circuits to maintain that current at a fixed level. The two-way amplifier arrangement finds utility as a conference amplifier and as a two-way trunk amplifier.

REFERENCES:
patent: 2691073 (1954-10-01), Lowman
patent: 3083265 (1963-03-01), Paulaitis et al.
patent: 3135829 (1964-06-01), Hultberg
patent: 3511931 (1970-05-01), Vanburen
patent: 3524929 (1970-08-01), Burns et al.
patent: 3829626 (1974-08-01), Irwin et al.
"Conference Circuit for Telephone Exchange, " M. Peard, IBM Technical Disclosure Bulletin, vol. 12, No. 11, Apr. 1970, pp. 1743-1744.

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