Speech control in a telephone station

Details Speech control in a telephone station Speech control in a telephone station

1986-10-29

1987-12-01

Rubinson, Gene Z.

Telephonic communications

Substation or terminal circuitry

Sidetone control or hybrid circuit

379387, 379390, H04M 158

Patent

active

047109530

ABSTRACT:
A speech control is provided for a telephone station and provides, dependent upon speech direction, the transmitting channel or the receiving channel being attenuated or the receiving channel being attenuated or the receiving channel or the transmitting channel being de-attenuated with a structure which is as simple as possible to manufacture with, inexpensive, non-critical components. A potentiometer is provided in each channel for setting the volume and the potentiometers are simultaneously and symmetrically operated with a single operating element. The potentiometers, dependent on speech direction, determined by a speech analyzer, are simultaneously shorted or simultaneously activated. The shorting in the transmission channel has a de-attenuating effect and has an attenuating effect in the receiving channel. When the potentiometers are in the activated condition, they cause the opposite effect.

REFERENCES:
patent: 4648110 (1987-03-01), Elsasser

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