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    • 2. 发明授权
    • Distortion compensating apparatus
    • 失真补偿装置
    • US06677821B2
    • 2004-01-13
    • US10030292
    • 2002-05-28
    • Shigeo KusunokiKatsuya Yamamoto
    • Shigeo KusunokiKatsuya Yamamoto
    • H03F126
    • H03F1/3247H03F1/3288H03F2201/3233
    • A circuit that compensates for distortion of an output signal of a power amplifying circuit of a transmitting section of a base station or a terminal of a radio communication system and apparatus such as a mobile phone, and a predistorter system applicable to radio communication systems and that does not depend on a use system other than generation of envelope change due to a high-frequency input signal without addition of the distortion compensating circuit to a base band portion, the compensating circuit including a memory device where inverted distortion data of a high-frequency power amplifying device for a mobile phone are stored is driven with data obtained by detecting an envelope of a high-frequency input signal having envelope change as an address and distortion compensation of the power amplifying device is made by adjusting a variable gain device provided at a prestage of the power amplifying device.
    • 补偿基站或无线电通信系统的终端的发射部分的功率放大电路的输出信号的失真以及诸如移动电话的装置以及适用于无线电通信系统的预失真器系统的电路,并且 不依赖于由于高频输入信号而产生的包络变化以外的使用系统,而不将失真补偿电路添加到基带部分,补偿电路包括存储器件,其中高频的反相失真数据 存储用于移动电话的功率放大装置由通过检测具有包络线变化的高频输入信号的包络而获得的数据作为地址来驱动,并且功率放大装置的失真补偿是通过调整设置在 功率放大装置的前置放大器。
    • 3. 发明申请
    • WIRELESS COMMUNICATION APPARATUS AND POWER-SUPPLY APPARATUS
    • 无线通信设备和电源设备
    • US20100120475A1
    • 2010-05-13
    • US12614529
    • 2009-11-09
    • Hirotada TANIUCHIShigeo KusunokiTetsuo KimuraAkihito KatoKazuhiko Saito
    • Hirotada TANIUCHIShigeo KusunokiTetsuo KimuraAkihito KatoKazuhiko Saito
    • H04B1/38
    • H02M3/07H02J7/345
    • A wireless communication apparatus includes a power-supply apparatus configured to supply electric power to a load that is intermittently operated by using a battery as a power supply; and a control unit configured to control the power-supply apparatus, wherein the power-supply apparatus includes a capacitor; a switching unit capable of selectively forming a first path through which charging is performed from the battery to the capacitor and a second path through which the battery is connected in series with the capacitor, and wherein the control unit controls the switching unit so that the first path is formed during a period in which the load is idle and the second path is formed during a period in which the load is not idle, and thereby supplies the voltage of the sum of the battery voltage and the charged voltage of the capacitor in a non-idle period.
    • 无线通信装置包括:电源装置,被配置为向通过使用电池作为电源间歇地操作的负载提供电力; 以及控制单元,被配置为控制所述电源装置,其中所述电源装置包括电容器; 开关单元,其能够选择性地形成从电池到电容器进行充电的第一路径和电池与电容器串联连接的第二路径,并且其中控制单元控制开关单元,使得第一 在负载不空闲的时段期间形成路径,并且在负载不空闲的时段期间形成第二路径,从而将电池电压和电容器的充电电压的和的电压提供到 非空闲时段
    • 8. 发明授权
    • Semiconductor power amplifier integrated circuit
    • 半导体功率放大器集成电路
    • US5408198A
    • 1995-04-18
    • US231690
    • 1994-04-25
    • Shigeo Kusunoki
    • Shigeo Kusunoki
    • H03F3/195H03F3/193H03F3/60H03F3/16
    • H03F3/1935
    • A power amplifier is provided which operates in a quasi-microwave band between 0.8 GHz and 2 GHz with a high output, a small size and low power consumption. Junction type GaAs FETs are connected in a multi-stage manner to form an amplification circuit. An impedance matching/phase adjusting circuit is provided between the respective stages. An input impedance matching circuit, an output impedance matching circuit and bypass capacitors for a power source terminal are provided. Further, a gain control terminal and gate bias terminals for setting operating points of the JFETs are provided, thereby forming an entire arrangement as a semiconductor integrated circuit.
    • 提供功率放大器,其操作在0.8GHz和2GHz之间的准微波频带,具有高输出,小尺寸和低功耗。 结型GaAs FET以多级方式连接以形成放大电路。 在各个级之间设置阻抗匹配/相位调整电路。 提供输入阻抗匹配电路,输出阻抗匹配电路和用于电源端子的旁路电容器。 此外,提供用于设置JFET的工作点的增益控制端子和栅极偏置端子,从而形成作为半导体集成电路的整体布置。