Patent ID: 7715797

Claim:
A mobile communication terminal comprising: a first voice input path serving as a default voice input path, the first voice input path including a non-directional microphone; a second voice input path serving as an additional voice input path, the second voice input path including a unidirectional microphone; and a controller for determining whether a speaker phone of the terminal is in use, the controller selects the second voice input path if determining the speaker phone is in use, controls the selected second voice input path to receive a voice signal from a predetermined direction via the unidirectional microphone during the use of the speaker phone, and prevents inclusion of peripheral noise in the voice signal received via the unidirectional microphone during the use of the speaker phone, wherein the controller reduces an amplification gain of a predetermined frequency band of the voice signal received via the unidirectional microphone for preventing the inclusion of the peripheral noise and removing a feedback signal, and the predetermined frequency band is a frequency band that otherwise contributes to the feedback signal during the use of the speaker phone.