FIELD NOISE-RESISTANT TELEPHONE Russian patent published in 2022 - IPC H04M1/02 

FIELD: communication technology.

SUBSTANCE: invention relates to telephone communication systems. The telephone set contains a micro-telephone handset, a noise-resistant microphone, a telephone, a micro-telephone handset switch, a power bridge, a transmission amplifier, an automatic level adjustment unit (ALC) of the signal, a linear amplifier, a frequency-dependent detector, a smoothing RC circuit, an attenuator, a transmission path switching unit, an electronic key, an amplifier detector, a double smoothing RC-circuit, a line matching device, an electronic inductor with a call button, a telephone operation mode switch, a reception amplifier, a call receiving device, a diode bridge, an optical indicator, an electronic key, a multivibrator, an additional telephone, a block with terminals for connecting a communication line.

EFFECT: improving the quality of communication.

1 cl, 1 dwg