Dual voltage source feed circuit configuration for a telephone l

Details Dual voltage source feed circuit configuration for a telephone l Dual voltage source feed circuit configuration for a telephone l

1984-10-15

1986-07-22

Rubinson, Gene Z.

179 77, H04M 1900

Patent

active

046021302

ABSTRACT:
A dual voltage source feed circuit arrangement for a two-wire telephone line circuit includes an auxiliary voltage source placed across the two-wire line and switchably controlled to connect the voltage source across the line to thereby supply an additional current to the line which current provides a optimum value of talk current to the line.

REFERENCES:
patent: 4267408 (1981-05-01), Schoofs
patent: 4306122 (1981-12-01), Nijman et al.
patent: 4315106 (1982-02-01), Chea, Jr.
patent: 4410766 (1983-10-01), Beirne
patent: 4431869 (1984-02-01), Sweet
patent: 4465967 (1984-08-01), Tokunaga et al.
patent: 4499532 (1985-02-01), Hudson et al.
patent: 4511763 (1985-04-01), Skidanenko et al.
patent: 4514595 (1985-04-01), Rosenbaum et al.

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