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1. 发明授权

US08868008B2 Switch circuit for controlling a connection between an antenna and an external circuit 有权
标题翻译：用于控制天线和外部电路之间的连接的开关电路
公开(公告)号：US08868008B2
公开(公告)日：2014-10-21
申请号：US13180751
申请日：2011-07-12
申请人： Satoshi Tanaka , Tadashi Matsuoka , Masanori Iijima , Yasushi Shigeno
发明人： Satoshi Tanaka , Tadashi Matsuoka , Masanori Iijima , Yasushi Shigeno
IPC分类号： H04B1/44 , H03K17/10 , H03K17/693 , H03K17/62 , H03K17/06
CPC分类号： H03K17/693 , H03K17/102 , H03K17/6221 , H03K2017/066
摘要： A switch circuit with a unit capable of improving a margin voltage without using a negative bias generation circuit is provided. A switch comprising an N-type MOSFET is used for a switch passing a signal to an antenna and a switch comprising a P-type MOSFET is used for a shunt switch grounding a signal. A common control signal is input to the gate terminal of the MOSFET constituting each switch. The inverted signal of this control signal is coupled to a ground terminal of the switch, and thus the potential of the gate terminal of each MOSFET can be set to the ground voltage.
摘要翻译：提供一种具有能够在不使用负偏压产生电路的情况下能够提高余量电压的单元的开关电路。包括N型MOSFET的开关用于将信号传递到天线的开关，并且包括P型MOSFET的开关用于分流开关对信号进行接地。公共控制信号被输入到构成每个开关的MOSFET的栅极端子。该控制信号的反相信号耦合到开关的接地端子，因此每个MOSFET的栅极端子的电位可以设置为接地电压。

2. 发明授权

US08633618B2 Semiconductor device and radio communication device 有权
标题翻译：半导体器件和无线电通信设备
公开(公告)号：US08633618B2
公开(公告)日：2014-01-21
申请号：US13651731
申请日：2012-10-15
申请人： Masanori Iijima , Yoshiaki Harasawa
发明人： Masanori Iijima , Yoshiaki Harasawa
IPC分类号： H02M3/06
CPC分类号： H03K17/693 , H02M3/07 , H03K17/063 , H03K17/162
摘要： To provide a fast charge means for a capacitor in a negative bias generation circuit. A capacitor is present in a down converter in a negative bias generation circuit. In order to perform fast charge, the capacitance of the capacitor is reduced and a necessary amount of charge is minimized. On the other hand, an external capacitance provided separately from the capacitor in the down converter is coupled directly to a power supply voltage and charged. After the capacitor in the down converter is charged, the external capacitance and the capacitor in the down converter are coupled in parallel. Due to this, it is made possible to aim at both the increase in charge speed and the improvement of resistance to ripple noise.
摘要翻译：为负偏压发生电路中的电容器提供快速充电装置。在负偏压发生电路中的下变频器中存在电容器。为了执行快速充电，电容器的电容减小并且必需的电荷量被最小化。另一方面，与下变频器中的电容器分开设置的外部电容直接耦合到电源电压并且被充电。在下变频器中的电容器被充电之后，下变频器中的外部电容和电容器并联耦合。因此，可以瞄准充电速度的提高和抗纹波噪声的提高。

3. 发明授权

US08324760B2 Semiconductor device and radio communication device 有权
标题翻译：半导体器件和无线电通信设备
公开(公告)号：US08324760B2
公开(公告)日：2012-12-04
申请号：US12835280
申请日：2010-07-13
申请人： Masanori Iijima , Yoshiaki Harasawa
发明人： Masanori Iijima , Yoshiaki Harasawa
IPC分类号： H02M3/06
CPC分类号： H03K17/693 , H02M3/07 , H03K17/063 , H03K17/162
摘要： To provide a fast charge means for a capacitor in a negative bias generation circuit. A capacitor is present in a down converter in a negative bias generation circuit. In order to perform fast charge, the capacitance of the capacitor is reduced and a necessary amount of charge is minimized. On the other hand, an external capacitance provided separately from the capacitor in the down converter is coupled directly to a power supply voltage and charged. After the capacitor in the down converter is charged, the external capacitance and the capacitor in the down converter are coupled in parallel. Due to this, it is made possible to aim at both the increase in charge speed and the improvement of resistance to ripple noise.
摘要翻译：为负偏压发生电路中的电容器提供快速充电装置。在负偏压发生电路中的下变频器中存在电容器。为了执行快速充电，电容器的电容减小并且必需的电荷量被最小化。另一方面，与下变频器中的电容器分开设置的外部电容直接耦合到电源电压并且被充电。在下变频器中的电容器被充电之后，下变频器中的外部电容和电容器并联耦合。因此，可以瞄准充电速度的提高和抗纹波噪声的提高。

4. 发明授权

US08649741B2 Radio frequency module having an isolation mode between transmission mode and power saving mode 有权
标题翻译：射频模块在传输模式和省电模式之间具有隔离模式
公开(公告)号：US08649741B2
公开(公告)日：2014-02-11
申请号：US13204400
申请日：2011-08-05
申请人： Masanori Iijima , Yoshiaki Harasawa
发明人： Masanori Iijima , Yoshiaki Harasawa
IPC分类号： H04B1/44
CPC分类号： H03K17/6221
摘要： A radio frequency module is configured to enter a power saving mode with high reliability. The radio frequency module includes, e.g., a first switch transistor for coupling a transmission node to an antenna, a second switch transistor for shunting the transmission node to a ground voltage, and a level shift circuit for performing on-off control of the first and second switch transistors by positive and negative power supply voltages. The level shift circuit, upon receiving a sleep instruction while the module is in a transmission operation mode in which the first switch transistor for coupling a transmission node to an antenna is turned on and the second switch transistor for shunting the transmission node to a ground voltage is turned off, first transitions to an isolation operation mode in which the first switch transistor for coupling a transmission node to an antenna is turned off and the second switch transistor for shunting the transmission node to a ground voltage is turned on for a first period of time, and then transitions to a sleep mode in which the positive and negative power supply voltages are deactivated.
摘要翻译：射频模块被配置为以高可靠性进入省电模式。射频模块包括例如用于将发送节点耦合到天线的第一开关晶体管，用于将发送节点分流到接地电压的第二开关晶体管，以及用于执行第一和第二开关晶体管的开关控制的电平移位电路，第二开关晶体管由正和负电源电压。电平移位电路在模块处于用于将发送节点耦合到天线的第一开关晶体管接通的传输操作模式下接收到休眠指令时，以及用于将发送节点分流到接地电压的第二开关晶体管关闭，首先转换到隔离操作模式，其中用于将传输节点耦合到天线的第一开关晶体管被截止，并且用于将发送节点分流到接地电压的第二开关晶体管接通第一周期时间，然后转换到休眠模式，其中正和负电源电压被去激活。

5. 发明申请

US20120064952A1 Radio Frequency Module Having an Isolation Mode Between Transmission Mode and Power Saving Mode 有权
标题翻译：射频模块在传输模式和省电模式之间具有隔离模式
公开(公告)号：US20120064952A1
公开(公告)日：2012-03-15
申请号：US13204400
申请日：2011-08-05
申请人： Masanori Iijima , Yoshiaki Harasawa
发明人： Masanori Iijima , Yoshiaki Harasawa
IPC分类号： H04W52/02 , H04W88/02
CPC分类号： H03K17/6221
摘要： A radio frequency module is configured to enter a power saving mode with high reliability. The radio frequency module includes, e.g., a first switch transistor for coupling a transmission node to an antenna, a second switch transistor for shunting the transmission node to a ground voltage, and a level shift circuit for performing on-off control of the first and second switch transistors by positive and negative power supply voltages. The level shift circuit, upon receiving a sleep instruction while the module is in a transmission operation mode in which the first switch transistor for coupling a transmission node to an antenna is turned on and the second switch transistor for shunting the transmission node to a ground voltage is turned off, first transitions to an isolation operation mode in which the first switch transistor for coupling a transmission node to an antenna is turned off and the second switch transistor for shunting the transmission node to a ground voltage is turned on for a first period of time, and then transitions to a sleep mode in which the positive and negative power supply voltages are deactivated.
摘要翻译：射频模块被配置为以高可靠性进入省电模式。射频模块包括例如用于将发送节点耦合到天线的第一开关晶体管，用于将发送节点分流到接地电压的第二开关晶体管，以及用于执行第一和第二开关晶体管的开关控制的电平移位电路，第二开关晶体管由正和负电源电压。电平移位电路在模块处于用于将发送节点耦合到天线的第一开关晶体管接通的传输操作模式下接收到休眠指令时，以及用于将发送节点分流到接地电压的第二开关晶体管关闭，首先转换到隔离操作模式，其中用于将传输节点耦合到天线的第一开关晶体管被截止，并且用于将发送节点分流到接地电压的第二开关晶体管接通第一周期时间，然后转换到休眠模式，其中正和负电源电压被去激活。

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