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1.发明申请Wireless communication rf circuit and communication apparatus including the same 失效无线通信RF电路和包括其的通信设备公开(公告)号：US20050176381A1
公开(公告)日：2005-08-11
申请号：US10497513
申请日：2003-04-23
申请人： Tsutomi Ieki , Yoshihiro Yamaguchi
发明人： Tsutomi Ieki , Yoshihiro Yamaguchi
CPC分类号： G06K19/0723 , H04B1/44 , H04B1/48
摘要： A wireless communication RF circuit includes a transmitting-and-receiving antenna, a modulator circuit, an SPST switching circuit, and a demodulator circuit, which are arranged in a sequence. Upon signal reception, the SPST switching circuit is switched ON, and the demodulator circuit extracts a signal wave from a signal received by the antenna and outputs the signal wave to a control circuit. Upon signal transmission, the SPST switching circuit is switched OFF, and the modulator circuit mixes transmission data supplied from the control circuit with a carrier and outputs the carrier to the antenna. Only a single antenna is required. Upon signal reception, the influence of the modulator circuit is negligible. Upon signal transmission, the SPST switching circuit is switched OFF, thus the effect of the demodulator circuit is negligible, which greatly reduces loss.
摘要翻译： 无线通信RF电路包括按顺序排列的发送和接收天线，调制器电路，SPST切换电路和解调器电路。 信号接收后，SPST切换电路接通，解调电路从天线接收的信号中提取信号波，并将信号波输出到控制电路。 信号传输时，SPST切换电路切换为OFF，调制电路将从控制电路提供的发送数据与载波混合，并将载波输出到天线。 只需要一根天线。 在信号接收时，调制器电路的影响可以忽略不计。 在信号传输时，SPST切换电路关闭，解调电路的影响可以忽略不计，大大降低了损耗。
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2.发明授权Wireless communication RF circuit and communication apparatus including the same 失效无线通信RF电路和包括其的通信设备公开(公告)号：US07133641B2
公开(公告)日：2006-11-07
申请号：US10497513
申请日：2003-04-23
申请人： Tsutomi Ieki , Yoshihiro Yamaguchi
发明人： Tsutomi Ieki , Yoshihiro Yamaguchi
CPC分类号： G06K19/0723 , H04B1/44 , H04B1/48
摘要： A wireless communication RF circuit includes a transmitting-and-receiving antenna, a modulator circuit, an SPST switching circuit, and a demodulator circuit, which are arranged in a sequence. Upon signal reception, the SPST switching circuit is switched ON, and the demodulator circuit extracts a signal wave from a signal received by the antenna and outputs the signal wave to a control circuit. Upon signal transmission, the SPST switching circuit is switched OFF, and the modulator circuit mixes transmission data supplied from the control circuit with a carrier and outputs the carrier to the antenna. Only a single antenna is required. Upon signal reception, the influence of the modulator circuit is negligible. Upon signal transmission, the SPST switching circuit is switched OFF, thus the effect of the demodulator circuit is negligible, which greatly reduces loss.
摘要翻译： 无线通信RF电路包括按顺序排列的发送和接收天线，调制器电路，SPST切换电路和解调器电路。 信号接收后，SPST切换电路接通，解调电路从天线接收的信号中提取信号波，并将信号波输出到控制电路。 信号传输时，SPST切换电路切换为OFF，调制电路将从控制电路提供的发送数据与载波混合，并将载波输出到天线。 只需要一根天线。 在信号接收时，调制器电路的影响可以忽略不计。 在信号传输时，SPST切换电路关闭，解调电路的影响可以忽略不计，大大降低了损耗。
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