发明名称 |
RADIO TRANSCEIVER ON A CHIP |
摘要 |
<p>A radio for receiving and transmitting high frequency signals. The radio comprises a down-conversion section (206, 208) arranged to down-convert a received first high frequency signal to an intermediate frequency signal; an up-conversion section arranged to up-convert an information signal, to be transmitted, to a second high frequency signal; a filter (220) for filtering the intermediate frequency signal; a detector (224) for information recovery; a variable voltage controlled oscillator (218) connected to the up-conversion section and the down-conversion section for down-converting said first high frequency signal during a receive cycle and up-converting said information signal during a transmit cycle in a time division duplex mode. The up-conversion section, the down-conversion section, and the variable controlled oscillator are integrated on a single IC chip. Also, the variable controlled oscillator is modulated by the information signal during the transmit cycle. <IMAGE></p> |
申请公布号 |
EP0962061(B1) |
申请公布日期 |
2013.02.06 |
申请号 |
EP19980905924 |
申请日期 |
1998.02.20 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
GAERDENFORS, KARL H KAN, TORBJOERN;MATTISSON, SVEN, ERIK;HAARTSEN, JACOBUS, CORNELIS |
分类号 |
H04B1/38;H04B1/40 |
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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