发明名称 RADIO PORTABLE TERMINAL EQUIPMENT
摘要 <p><P>PROBLEM TO BE SOLVED: To provide radio portable terminal equipment capable of performing excellent transmission / reception at a low cost without performing complicated antenna diversity in a small circuit scale without damaging the degree of freedom of the arrangement of antennas when radio terminal equipment is miniaturized further and turned to the size to be put in a hand especially. <P>SOLUTION: The radio portable terminal equipment comprises: a plurality of antennas; a reflection power detection means for detecting the reflection power of power supplied to the antennas; an antenna selection signal generation means for generating antenna selection signals for selecting the antenna on the basis of the reflection power detected by the reflection power detection means; and an antenna selection means for receiving the antenna selection signals generated by the antenna selection signal generation means and selecting one antenna from the plurality of antennas. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p>
申请公布号 JP2004260514(A) 申请公布日期 2004.09.16
申请号 JP20030048529 申请日期 2003.02.26
申请人 CANON INC 发明人 SAITO KATSUO
分类号 H04B1/40;H04B7/08;H04B7/26;(IPC1-7):H04B7/08 主分类号 H04B1/40
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