H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/73
H04M 1/00 (2006.01) H04M 1/60 (2006.01) H04M 19/08 (2006.01)
Patent
CA 1201833
ABSTRACT: A transmission circuit for an electronic tele- phone set comprises a transmit circuit which mas far as direct current is concerned is connected in parallel with the series arrangement of a logic circuit, a current source and a receive circuit. This enables the voltage space of the transmit circuit to be equal to the line volt- age so that a maximum transmit level can be achieved.
421810
Geboers Josephus J.a.
Janssen Daniel J.g.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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