Telephone speech network

Details Telephone speech network Telephone speech network

H - Electricity

04

M

379/80

H04M 1/58 (2006.01)

Patent

CA 1055177

TELEPHONE SPEECH NETWORK Abstract of the Disclosure An electronic circuit, for connecting a transmitter and receiver to a telephone line. The circuit operates on very low operating voltages from the line which allows parallel operation with a conventional set on long-loop applications. In its functional form, the circuit utilizes a bridge configuration having transistors in two of its legs, driven by the transmitter output, thereby eliminating the usual bridge balancing resistors therefrom and their concomitant operating voltage drops thereacross. - i -

268809

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