MOBILE TERMINAL HAVING A DIRECTING-TYPE SPEAKER MODULE AND METHOD FOR DIRECTING-TYPE SPEAKER MODULE

摘要

The present invention relates to a portable terminal having a directional speaker module and a directional speaker module method. The portable terminal includes a first speaker installed inside a housing to emit sound in all directions, A signal processor for controlling the phase and the sound pressure of the first speaker and the second speaker so that the directivity is maintained, and the directivity is controlled by adjusting the phase of the sound signal and the sound pressure according to the directivity mode And a control unit for driving the acoustic signal according to the voice communication mode or the speakerphone mode by the impedance matching function in one of the directivity mode, the speakerphone mode and the voice communication mode, and controlling the output of the acoustic signal. Therefore, according to the present invention, a directional speaker capable of generating a personal acoustic space using a dipole characteristic is implemented in a portable terminal, so that a user can enjoy a comfortable listening environment without causing noise to people nearby, It is possible to eliminate the inconvenience of having to carry the mobile phone, and it is possible to enhance user convenience when using services such as video call, digital multimedia broadcasting, and games.;Speaker, directional, phase, sound pressure, portable terminal