发明名称 |
Communication card and communication device |
摘要 |
A communication card or communication device is provided that includes an antenna for transmitting/receiving communication waves; a variable matching unit which can vary a circuit parameter; a directional coupling unit for extracting a reflected signal from the antenna; a detection unit for extracting the amplitude of the reflected signal; a control unit for outputting a control signal; an amplifier for amplifying a high frequency signal at a RF band; a frequency converter for converting an IF band signal into a RF band signal or a RF band signal into an IF band signal; a modulator/demodulator for modulating an IF signal to obtain a baseband signal at the transmission and demodulating an IF signal to obtain a baseband signal at the receiving; a baseband processor for processing the baseband signal; and a card interface for exchanging data with an information device.
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申请公布号 |
US7043269(B2) |
申请公布日期 |
2006.05.09 |
申请号 |
US20020258168 |
申请日期 |
2002.10.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ONO YASUSHI;KIRINO HIDEKI;SHINABE MUNEHIRO |
分类号 |
H04B1/38;G06F1/16;H04B1/04;H04B1/18;H04M1/00 |
主分类号 |
H04B1/38 |
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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