发明名称 |
AMPLIFIER CIRCUIT, ANTENNA MODULE AND WIRELESS COMMUNICATION APPARATUS |
摘要 |
An amplifier circuit that amplifies a carrier wave that a transmitting and receiving part has received, and includes a superimposition wave generation part that generates a superimposition wave to be superimposed onto the carrier wave; an amplifying part that adds the carrier wave and the superimposition wave to obtain an amplified carrier wave and outputs the amplified carrier wave; and an amplitude detection part that detects, based on a change in an amplitude value of the carrier wave, that the carrier wave is a predetermined carrier wave that carries a predetermined communication signal. The amplifier circuit outputs the amplified carrier wave when having detected the predetermined carrier wave. |
申请公布号 |
EP2883309(A4) |
申请公布日期 |
2015.08.26 |
申请号 |
EP20130836839 |
申请日期 |
2013.09.11 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
TSUJI, MASAAKI;KAWAHATA, KOHJI;TSUKAMOTO, NOBUNARI;ITOH, NAOHIRO |
分类号 |
G06K19/07;H01Q1/44;H03D1/00;H03D1/22;H04B5/00 |
主分类号 |
G06K19/07 |
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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