发明名称 |
Communication apparatus |
摘要 |
A communication apparatus communicating other apparatuses includes: a switch for switching between a vertical polarized antenna and a horizontal polarized antenna; a communication device for transmitting and receiving the electric wave via one of the antennas, which is selected by the switch; a monitor for monitoring a relative distance between the apparatus and other apparatuses; and a controller for controlling the switch such that the switch selects the vertical polarized antenna when the relative distance is equal to or larger than a distance threshold, and the switch selects the horizontal polarized antenna when the relative distance is smaller than the distance threshold. The distance threshold is larger than a distance between the apparatus and a dip point.
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申请公布号 |
US8035561(B2) |
申请公布日期 |
2011.10.11 |
申请号 |
US20090457059 |
申请日期 |
2009.05.29 |
申请人 |
DENSO CORPORATION;NIPPON SOKEN, INC. |
发明人 |
YAMAZAKI TOORU;SUGIMOTO YUJI |
分类号 |
H01Q21/24;G01S11/02;G08G1/09;G08G1/16;H01Q3/24;H04W4/04;H04W64/00;H04W88/02 |
主分类号 |
H01Q21/24 |
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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