Voice switching system capable of improving a quality of...

Details Voice switching system capable of improving a quality of... Voice switching system capable of improving a quality of...

2005-05-31

2005-05-31

Mei, Xu (Department: 2644)

Telephonic communications

Transmission line conditioning

C379S406070, C379S406080

Reexamination Certificate

active

06901143

ABSTRACT:
In a voice switch, a received voice signal and a transmitted voice signal are inputted to a receiving side control section, the receiving side control section thereby produces a signal for controlling an amount of attenuation in a receiving side attenuation section. As a result, the receiving side attenuation section attenuates the received voice signal by a predetermined amount to produce a speaker output voice signal for driving a speaker. A speaker output voice signal and a microphone input voice signal are inputted to a transmitting side control section, the transmitting side control section thereby produces a signal for controlling an amount of attenuation in a transmitting side attenuation section. Consequently, the transmitting side attenuation section attenuates the speaker output voice signal by a predetermined amount to produce the transmitted voice signal.

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Korean Office Action issued Feb. 27, 2001 (w/ English translations of relevant portions).

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