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    NEAR FIELD COMMUNICATION DEVICES, SYSTEMS, AND METHODS USING Q FACTOR ADJUSTMENTS
    1.
    发明申请
    NEAR FIELD COMMUNICATION DEVICES, SYSTEMS, AND METHODS USING Q FACTOR ADJUSTMENTS 有权
    近场通信设备，系统和使用Q因子调整的方法

    公开(公告)号：US20140256253A1

    公开(公告)日：2014-09-11

    申请号：US14199346

    申请日：2014-03-06

    申请人： Jong-Pil Cho ,  II-Jong Song

    发明人： Jong-Pil Cho ,  II-Jong Song

    IPC分类号： H04B5/00

    CPC分类号： H04B5/0031 ,  G06K7/10148 ,  G06K7/10237 ,  G06K19/0726 ,  H01Q1/2225 ,  H04B5/00 ,  H04B5/0056

    摘要： An NFC (near field communication) device can include a resonance unit and an NFC chip. The resonance unit may communicate with an external device through an electromagnetic wave. The NFC chip can provide output data to the resonance unit, receive input data from the resonance unit, and can reduce a Q factor (quality factor) of the resonance unit when a signal receive operation is performed in a card mode, and can maintain the Q factor of the resonance unit in a reader mode and when a signal transmit operation is performed in the card mode.

    摘要翻译： NFC（近场通信）设备可以包括谐振单元和NFC芯片。 谐振单元可以通过电磁波与外部设备通信。 NFC芯片可以向谐振单元提供输出数据，从谐振单元接收输入数据，并且可以在以卡模式执行信号接收操作时降低谐振单元的Q因子（品质因数），并且可以维持 读取器模式下的谐振单元的Q因子和在卡模式下执行信号发送操作时。

    ULTRA-LOW-POWER LEVEL SHIFTER, VOLTAGE TRANSFORM CIRCUIT AND RFID TAG INCLUDING THE SAME
    3.
    发明申请
    ULTRA-LOW-POWER LEVEL SHIFTER, VOLTAGE TRANSFORM CIRCUIT AND RFID TAG INCLUDING THE SAME 有权
    超低功耗水平变压器，电压变压器电路和包括其的RFID标签

    公开(公告)号：US20090128191A1

    公开(公告)日：2009-05-21

    申请号：US12210634

    申请日：2008-09-15

    申请人： Ja-Nam KU ,  Cheong-Worl Kim ,  Young-Hoon Min ,  Dong-Hyun Lee ,  II-Jong Song

    发明人： Ja-Nam KU ,  Cheong-Worl Kim ,  Young-Hoon Min ,  Dong-Hyun Lee ,  II-Jong Song

    IPC分类号： H03K19/0175

    CPC分类号： H03K19/018571

    摘要： A level shifter increase a voltage level of an output signal with relatively lower power consumption by adopting current-starved configuration. The level shifter includes an input unit and a driving unit. The input unit includes a current-starved inverter configured to generate a control signal in response to an input signal and a bias voltage. The input unit is powered by a first power supply voltage. The driving unit generates an output signal in response to the control signal. The output signal has a voltage level higher than the input signal, and the driving unit is powered by a second power supply voltage higher than the first power supply voltage.

    摘要翻译： 电平移位器通过采用电流欠压配置，以相对较低的功耗增加输出信号的电压电平。 电平移位器包括输入单元和驱动单元。 输入单元包括被配置为响应于输入信号和偏置电压产生控制信号的电流饥饿逆变器。 输入单元由第一电源电压供电。 驱动单元根据控制信号生成输出信号。 输出信号具有高于输入信号的电压电平，并且驱动单元由比第一电源电压高的第二电源电压供电。