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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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