发明名称 DIGITAL WIRELESS TERMINAL
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a digital wireless terminal for solving a problem of an output of white noise due to the effect of noise of a digital wireless receiver main body and electric field noise or the like when the digital wireless terminal completes reception from an opposite party or reaches a silence state because of absence of voice from the opposite party even during the reception. <P>SOLUTION: A reception signal processing section for processing digital sound is configured to comprise a voice CODEC 202 for converting the digital sound into linear n-bit data (wherein n is a positive integer), a digital noise filter 203, and a means for converting an output of the digital noise filter into a voice signal, and discriminates a voice period and a silence period on the basis of the linear n-bit data received by the digital noise filter from the voice CODEC and controls the digital noise filter so as to set "0" to all the bits of the linear n-bit data for the silence period in the output of the digital noise filter. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p>
申请公布号 JP2006128836(A) 申请公布日期 2006.05.18
申请号 JP20040311657 申请日期 2004.10.27
申请人 HITACHI KOKUSAI ELECTRIC INC 发明人 TAKAOKA YASUHARU;KUDO MASANORI
分类号 H04B1/10;G10L21/02;H04B1/40;H04R3/00;H04R3/04 主分类号 H04B1/10
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