METHOD FOR AUTOMATICALLY CONTROLLING SOUND VOLUME OF MOBILE COMMUNICATION TERMINAL

摘要

PURPOSE: A method for automatically controlling a sound volume of a mobile communication terminal is provided to automatically controlling a sound volume of a microphone according to user's controlling of speaker sound volume by making a speaker and a microphone interwork. CONSTITUTION: When a user selects a side button for controlling a sound volume(S1), a controller of a mobile phone switches a sound volume control signal transmission path to a variable amplifier of a speaker and discriminates a sound volume button selected by the user(S2). If the selected sound volume button is a sound volume up button, the controller increases a signal amplification degree of the variable amplifier to turn up the sound volume(S3). If the selected sound volume button is a sound volume down button, the controller decreases the signal amplification degree of the variable amplifier to turn down the sound volume(S4). The controller calculates a sound volume adjust value of a microphone by applying the controlled speaker sound volume value to an equation set for providing an optimum communication environment(S5). The signal amplification degree of the variable amplifier is varied to automatically perform a sound volume to turn up or turn down the sound volume of the microphone(S6).