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    Receiving apparatus, and computer readable memory medium that stores a program
    1.
    发明授权
    Receiving apparatus, and computer readable memory medium that stores a program 有权
    接收装置和存储程序的计算机可读存储介质

    公开(公告)号：US08804882B2

    公开(公告)日：2014-08-12

    申请号：US13087577

    申请日：2011-04-15

    申请人： Hiromune Nagai ,  Shinpei Matsuda ,  Hiroji Akahori

    发明人： Hiromune Nagai ,  Shinpei Matsuda ,  Hiroji Akahori

    IPC分类号： H04L27/08

    CPC分类号： H04L27/14 ,  H03G3/3068 ,  H03G3/3078

    摘要： Suitable gain control is achieved at low cost.In a receiving apparatus, an RF signal that is amplified by an RF amp is converted to an IF frequency by a frequency conversion unit and amplified by an IF amp, then the output signal from the IF amp that was converted to a digital signal by an ADC is inputted to a digital processing unit. The output from the ADC is then filtered to a desired frequency by a digital filter and inputted to the digital processing unit. In the digital processing unit the signal power before filtering by the digital filter and the signal power after filtering by the digital filter are measured, and the power difference is calculated. Based on the power difference, which indicates the ratio of unnecessary power, the digital processing unit controls the gain ratio of the RF amp and IF amp.

    摘要翻译： 以低成本实现了适当的增益控制。 在接收装置中，由RF放大器放大的RF信号由频率转换单元转换成IF频率并由IF放大器放大，然后将IF转换为数字信号的输出信号由 ADC被输入到数字处理单元。 然后通过数字滤波器将ADC的输出滤波到期望的频率并输入到数字处理单元。 在数字处理单元中，测量数字滤波器滤波前的信号功率和数字滤波器滤波后的信号功率，并计算功率差。 基于指示不必要功率的比率的功率差，数字处理单元控制RF放大器和IF放大器的增益比。

    RECEIVING APPARATUS, AND COMPUTER READABLE MEMORY MEDIUM THAT STORES A PROGRAM
    2.
    发明申请
    RECEIVING APPARATUS, AND COMPUTER READABLE MEMORY MEDIUM THAT STORES A PROGRAM 有权
    接收设备和存储程序的计算机可读存储介质

    公开(公告)号：US20110255642A1

    公开(公告)日：2011-10-20

    申请号：US13087577

    申请日：2011-04-15

    申请人： Hiromune Nagai ,  Shinpei Matsuda ,  Hiroji Akahori

    发明人： Hiromune Nagai ,  Shinpei Matsuda ,  Hiroji Akahori

    IPC分类号： H04L27/08

    CPC分类号： H04L27/14 ,  H03G3/3068 ,  H03G3/3078

    摘要： Suitable gain control is achieved at low cost.In a receiving apparatus, an RF signal that is amplified by an RF amp is converted to an IF frequency by a frequency conversion unit and amplified by an IF amp, then the output signal from the IF amp that was converted to a digital signal by an ADC is inputted to a digital processing unit. The output from the ADC is then filtered to a desired frequency by a digital filter and inputted to the digital processing unit. In the digital processing unit the signal power before filtering by the digital filter and the signal power after filtering by the digital filter are measured, and the power difference is calculated. Based on the power difference, which indicates the ratio of unnecessary power, the digital processing unit controls the gain ratio of the RF amp and IF amp.

    摘要翻译： 以低成本实现适当的增益控制。 在接收装置中，由RF放大器放大的RF信号由频率转换单元转换成IF频率并由IF放大器放大，然后将IF转换为数字信号的输出信号由 ADC被输入到数字处理单元。 然后通过数字滤波器将ADC的输出滤波到期望的频率并输入到数字处理单元。 在数字处理单元中，测量数字滤波器滤波前的信号功率和数字滤波器滤波后的信号功率，并计算功率差。 基于指示不必要功率的比率的功率差，数字处理单元控制RF放大器和IF放大器的增益比。

    Magnetic field generator, a persistent current switch assembly for such a magnetic field generator, and the method of controlling such magnetic field generator
    10.
    发明授权
    Magnetic field generator, a persistent current switch assembly for such a magnetic field generator, and the method of controlling such magnetic field generator 失效
    磁场发生器，用于这种磁场发生器的持续电流开关组件，以及控制这种磁场发生器的方法

    公开(公告)号：US5680085A

    公开(公告)日：1997-10-21

    申请号：US462762

    申请日：1995-06-05

    申请人： Katsuzo Aihara ,  Shinpei Matsuda ,  Tomoichi Kamo

    发明人： Katsuzo Aihara ,  Shinpei Matsuda ,  Tomoichi Kamo

    IPC分类号： G01R33/3815 ,  H01L39/20 ,  H01F1/00

    CPC分类号： H01L39/20 ,  G01R33/3815 ,  Y10S505/882

    摘要： A magnetic field generator has a superconductive coil immersed in a coolant material. When power is supplied to the superconductive coil from a suitable power source, the superconductive coil is energized to generate the magnetic field. The ends of the superconductive coil may then be shorted through a persistent current switch, to maintain the magnetic field without the need for further power. The persistent current switch has a superconductive connection connected across the ends of the superconductive coil and a heater. These components are enclosed in a casing with a gap between these components and the casing. Apertures in the casing permit coolant material to enter the gap. When the heater is energized, it heats the coolant material in the gap until it vaporizes. There is then a significant decrease in the thermal conductivity through the gap and hence the superconductive connection is heated rapidly to its critical temperature. Only low power is needed. When the heater stops being energized, liquid coolant material fills the gap thereby rapidly cooling the superconductive connector to below its critical temperature.

    摘要翻译： 磁场发生器具有浸入冷却剂材料中的超导线圈。 当从合适的电源向超导线圈供电时，超导线圈被通电以产生磁场。 然后，超导线圈的端部可以通过持续电流开关短路，以保持磁场而不需要进一步的功率。 持续电流开关具有连接在超导线圈的端部和加热器两端的超导连接。 这些部件被封装在壳体中，这些部件和壳体之间具有间隙。 套管中的孔允许冷却剂材料进入间隙。 当加热器通电时，它加热间隙中的冷却剂材料，直到其蒸发。 然后，通过间隙导热性显着降低，因此超导连接被迅速加热至其临界温度。 只需要低功耗。 当加热器停止通电时，液体冷却剂材料填充间隙，从而将超导连接器快速冷却到其临界温度以下。