WIRELESS COMMUNICATION UNIT

摘要

PROBLEM TO BE SOLVED: To provide a wireless terminal conducting TDMA communication, which can reduce a burst noise in a transmission voice. SOLUTION: The wireless terminal 10 is provided with a built-in antenna 16 in the vicinity of a microphone 15 configuring a voice input circuit with a transmission amplifier 17 to detect interference noise components and generates an electromotive force with an inverted phase against the interference noise components. The transmission amplifier 17 cancels the interference noise in the voice input circuit and the interference noise detected with the built-in antenna 16. A control section 12 digitally processes an output signal from the transmission amplifier 17 and a radio section 11 transmits the signal to a base station 20 via an antenna 14 by the TDMA system.