Patent ID: 6389391
Filing Date: 2002-05-14
Classification: G10L

Abstract:
A digital mobile communication equipment provided with a Speech Coder and Decoder, said mobile communication equipment comprising:A/D conversion means for converting analog voice signals into digital voice signals divided into frames; voice coding means for calculating the voice power value of each frame of said digital voice signals from said A/D converter and, for each frame, outputting said digital voice signal as it is when the voice power value is equal to or greater than a predetermined value and outputting the digital voice signal as zero when the voice power value is smaller than said predetermined value; and forward error correction coding means for inputting the coded digital voice signals from said coding means and for outputting the coded digital voice signals on which forward error correction coding has been performed; wherein said digital mobile communication equipment controls a noise level of the digital voice signal by outputting the digital voice signal as zero for every frame having a voice power value smaller than said predetermined value.