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    • 2. 发明授权
    • Radio frequency module having an isolation mode between transmission mode and power saving mode
    • 射频模块在传输模式和省电模式之间具有隔离模式
    • US08649741B2
    • 2014-02-11
    • US13204400
    • 2011-08-05
    • Masanori IijimaYoshiaki Harasawa
    • Masanori IijimaYoshiaki Harasawa
    • H04B1/44
    • H03K17/6221
    • 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.
    • 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。
    • 3. 发明申请
    • Radio Frequency Module Having an Isolation Mode Between Transmission Mode and Power Saving Mode
    • 射频模块在传输模式和省电模式之间具有隔离模式
    • US20120064952A1
    • 2012-03-15
    • US13204400
    • 2011-08-05
    • Masanori IijimaYoshiaki Harasawa
    • Masanori IijimaYoshiaki Harasawa
    • H04W52/02H04W88/02
    • H03K17/6221
    • 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.
    • 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。
    • 4. 发明授权
    • Semiconductor device and radio communication device
    • 半导体器件和无线电通信设备
    • US08633618B2
    • 2014-01-21
    • US13651731
    • 2012-10-15
    • Masanori IijimaYoshiaki Harasawa
    • Masanori IijimaYoshiaki Harasawa
    • H02M3/06
    • H03K17/693H02M3/07H03K17/063H03K17/162
    • 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.
    • 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。
    • 5. 发明授权
    • Semiconductor device and radio communication device
    • 半导体器件和无线电通信设备
    • US08324760B2
    • 2012-12-04
    • US12835280
    • 2010-07-13
    • Masanori IijimaYoshiaki Harasawa
    • Masanori IijimaYoshiaki Harasawa
    • H02M3/06
    • H03K17/693H02M3/07H03K17/063H03K17/162
    • 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.
    • 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。
    • 6. 发明申请
    • SEMICONDUCTOR DEVICE AND RADIO COMMUNICATION DEVICE
    • 半导体器件和无线电通信设备
    • US20130038505A1
    • 2013-02-14
    • US13651731
    • 2012-10-15
    • Masanori IIJIMAYoshiaki HARASAWA
    • Masanori IIJIMAYoshiaki HARASAWA
    • H01Q1/50
    • H03K17/693H02M3/07H03K17/063H03K17/162
    • 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.
    • 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。
    • 7. 发明申请
    • SEMICONDUCTOR DEVICE AND RADIO COMMUNICATION DEVICE
    • 半导体器件和无线电通信设备
    • US20110074220A1
    • 2011-03-31
    • US12835280
    • 2010-07-13
    • Masanori IIJIMAYoshiaki HARASAWA
    • Masanori IIJIMAYoshiaki HARASAWA
    • H02M3/06
    • H03K17/693H02M3/07H03K17/063H03K17/162
    • 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.
    • 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。