专利名称：Transmitter-receiver发明人：Ogata, Toshiharu申请号：EP03253986.8申请日：20030624公开号：EP1379007A3公开日：20051221
专利附图：
摘要：A transmitter-receiver comprises a transmission circuit (3) which outputs atransmitter signal; and a reception circuit (4) which receives a receiver signal whosefrequency is different from that of the transmitter signal. The reception circuit has amixer (4d) which first converts a frequency of the receiver signal to make it an
intermediate frequency signal; and a trap circuit (4c) for attenuating the transmittersignal outputted from the transmission circuit is located before the mixer inside thereception circuit to prevent its own transmitter signal from entering the reception circuit.
申请人：ALPS ELECTRIC CO., LTD.
地址：1-7 Yukigaya Otsuka-cho Ota-ku Tokyo 145 JP
国籍：JP
代理机构：Kensett, John Hinton
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