公开(公告)号：US09564858B2

公开(公告)日：2017-02-07

申请号：US15016970

申请日：2016-02-05

申请人： SOCIONEXT INC.

发明人： Takafumi Nasu ,  Shinichiro Uemura ,  Atsushi Ohara

IPC分类号： H03F3/04 ,  H01P7/00 ,  H03F1/02 ,  H03F3/191 ,  H03H5/00 ,  H03J5/02 ,  H03F1/32 ,  H03F3/45 ,  H03F3/193 ,  H03H11/04

CPC分类号： H03F1/0205 ,  H03F1/3211 ,  H03F3/191 ,  H03F3/193 ,  H03F3/45179 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/45394 ,  H03F2203/45631 ,  H03F2203/45634 ,  H03F2203/45638 ,  H03F2203/45644 ,  H03F2203/45658 ,  H03F2203/45688 ,  H03F2203/45694 ,  H03F2203/45696 ,  H03F2203/45712 ,  H03F2203/45714 ,  H03F2203/45718 ,  H03F2203/45726 ,  H03H5/00 ,  H03H11/04 ,  H03J5/02 ,  H03J2200/10

摘要： A parallel resonant circuit with excellent distortion and saturation characteristics is provided at low power consumption. A first power-supply voltage is applied to the parallel resonant circuit. In the parallel resonant circuit, a variable resistor includes one or more parallel-connected branches. Each of the branches includes a series circuit of a resistor and a MOS switch. A second power supply supplies power of control signals applied to respective gates of the MOS switches, and supplies back gate voltages to the MOS switches. A power-supply voltage of the second power supply is higher than the first power-supply voltage.

摘要翻译： 在低功耗下提供具有优异失真和饱和特性的并联谐振电路。 第一电源电压被施加到并联谐振电路。 在并联谐振电路中，可变电阻器包括一个或多个并联连接的分支。 每个分支包括电阻器和MOS开关的串联电路。 第二电源提供施加到MOS开关的各个门的控制信号的电源，并向MOS开关提供反向栅极电压。 第二电源的电源电压高于第一电源电压。

公开(公告)号：US09531466B2

公开(公告)日：2016-12-27

申请号：US15012183

申请日：2016-02-01

申请人： SOCIONEXT INC.

发明人： Atsushi Ohara ,  Yoshifumi Hosokawa ,  Yoshihiro Okumura

IPC分类号： H04L1/02 ,  H04B7/08

CPC分类号： H04B7/0802

摘要： A diversity reception circuit obtains a synthesized output based on signals received at a plurality of antennas. The diversity reception circuit includes a plurality of PLLs outputting respective local oscillation signals; a plurality of mixers converting respective received radio frequency signals to low frequency signals; and a switch circuit selecting any one of outputs of the PLLs and supplying the selected output to at least one of the mixers.

摘要翻译： 分集接收电路根据在多个天线处接收到的信号获得合成输出。 分集接收电路包括输出各个本地振荡信号的多个PLL; 多个混合器将各个接收的射频信号转换成低频信号; 以及开关电路，选择所述PLL的输出中的任何一个，并将选择的输出提供给所述混频器中的至少一个。