Title :
Speakerphone IC for Handsfree Telephone Sets
Author_Institution :
SGS-Thomson Microelectron., Grenoble, France
Abstract :
This paper presents a speakerphone IC dedicated to handsfree telephone set applications. The main charaterlstlc of this IC Is that it can adapt itself to the electrical and acoustical environment by changing Itself the gain of amplifiers and attenuators. This circuit can simulate closely a full-duplex handsfree system.
Keywords :
amplifiers; analogue integrated circuits; attenuators; audio equipment; telephone sets; acoustical environment; amplifier gain; attenuator gain; electrical environment; full-duplex handsfree system; handsfree telephone set; speakerphone IC; Attenuation; Attenuators; Compressors; Coupling circuits; Loudspeakers; Microphones; Speech; Switching circuits; Telephone sets; Telephony;
Conference_Titel :
Solid-State Circuits Conference, 1990. ESSCIRC '90. Sixteenth European
Conference_Location :
Grenoble
Print_ISBN :
2-86332-087-4
