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20 条记录 (耗时 0.031 秒)

    NEAR FIELD COMMUNICATION WITH MATCHING CIRCUITRY
    11.
    发明申请
    NEAR FIELD COMMUNICATION WITH MATCHING CIRCUITRY 有权
    具有匹配电路的现场通信

    公开(公告)号：US20150178526A1

    公开(公告)日：2015-06-25

    申请号：US14527059

    申请日：2014-10-29

    申请人： Hyoung-Hwan Roh ,  Il-Jong Song

    发明人： Hyoung-Hwan Roh ,  Il-Jong Song

    IPC分类号： G06K7/10 ,  H01Q1/52 ,  H01Q1/22 ,  H01Q7/00

    CPC分类号： H01Q1/2216 ,  G06K7/10237 ,  G06K19/07773 ,  H01Q1/2225 ,  H01Q1/526 ,  H01Q5/335 ,  H01Q7/00

    摘要： A matching circuit of a near field communication (NFC) device includes a resonance unit connected between a first terminal and a second terminal of an antenna. The antenna is responsive to an electromagnetic wave. The resonance unit includes a first capacitor connected between the first terminal and the second terminal of the antenna. A matching unit is configured to perform impedance matching between the antenna and an NFC chip. The matching unit is connected between the first terminal and the second terminal of the antenna.

    摘要翻译： 近场通信（NFC）设备的匹配电路包括连接在天线的第一终端和第二终端之间的共振单元。 天线响应电磁波。 谐振单元包括连接在天线的第一端子和第二端子之间的第一电容器。 匹配单元被配置为执行天线和NFC芯片之间的阻抗匹配。 匹配单元连接在天线的第一端子和第二端子之间。

    Near field communication devices, systems, and methods using Q factor adjustments
    14.
    发明授权
    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：US09596003B2

    公开(公告)日：2017-03-14

    申请号：US14199346

    申请日：2014-03-06

    申请人： Jong-Pil Cho ,  Il-Jong Song

    发明人： Jong-Pil Cho ,  Il-Jong Song

    IPC分类号： H04B5/00 ,  H01Q1/22 ,  G06K7/10 ,  G06K19/07

    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。

    Method of operating contactless IC card reader, detection circuit of contactless IC card reader, contactless IC card reader and card system including the same
    15.
    发明授权
    Method of operating contactless IC card reader, detection circuit of contactless IC card reader, contactless IC card reader and card system including the same 有权
    非接触式IC卡读卡器的操作方法，非接触式IC卡读卡器的检测电路，非接触式IC卡读卡器和卡片系统等

    公开(公告)号：US09218518B2

    公开(公告)日：2015-12-22

    申请号：US14206276

    申请日：2014-03-12

    申请人： Jun-Ho Kim ,  Hyoung-Hwan Roh ,  Il-Jong Song

    发明人： Jun-Ho Kim ,  Hyoung-Hwan Roh ,  Il-Jong Song

    IPC分类号： G06K19/06 ,  G06K7/08 ,  G06K7/10

    CPC分类号： G06K7/083 ,  G06K7/10039

    摘要： A method of operating a contactless integrated circuit (IC) card reader includes calculating a first transition time of at least one first magnetic pulse during a first transition interval and calculating a second transition time of a second magnetic pulse during a second transition interval. The first transition time is calculated in a calibration phase, and the second transition time is calculated in a detection phase. A contactless IC card is determined to be within a communication rage of the reader based on a comparison of the first and second transition times.

    摘要翻译： 一种操作非接触式集成电路（IC）读卡器的方法包括：在第一转变间隔期间计算至少一个第一磁脉冲的第一转换时间，并在第二转换间隔期间计算第二磁脉冲的第二转换时间。 在校准阶段计算第一过渡时间，并在检测阶段计算第二过渡时间。 基于第一和第二转换时间的比较，确定非接触式IC卡处于读取器的通信范围内。

    Phase-shift keying demodulators and smart cards including the same
    18.
    发明授权
    Phase-shift keying demodulators and smart cards including the same 有权
    相移键控解调器和智能卡包括相同

    公开(公告)号：US08729972B2

    公开(公告)日：2014-05-20

    申请号：US13242722

    申请日：2011-09-23

    申请人： Il-Jong Song ,  Sang-Hyo Lee

    发明人： Il-Jong Song ,  Sang-Hyo Lee

    IPC分类号： H03B5/20

    CPC分类号： H04L27/2338

    摘要： A phase-shift keying (PSK) demodulator and a smart card including the same are disclosed. The PSK demodulator includes a delay circuit and a sampling circuit. The delay circuit generates a plurality of clock signals by delaying the input signal. The sampling circuit samples the input signal in response to the clock signals, and generates output data.

    摘要翻译： 公开了一种相移键控（PSK）解调器和包括它的智能卡。 PSK解调器包括延迟电路和采样电路。 延迟电路通过延迟输入信号来产生多个时钟信号。 采样电路响应于时钟信号对输入信号进行采样，并产生输出数据。

    Phase-Shift Keying Demodulators and Smart Cards Including the Same
    19.
    发明申请
    Phase-Shift Keying Demodulators and Smart Cards Including the Same 有权
    相移键控解调器和包括其的智能卡

    公开(公告)号：US20120207246A1

    公开(公告)日：2012-08-16

    申请号：US13242722

    申请日：2011-09-23

    申请人： Il-Jong Song ,  Sang-Hyo Lee

    发明人： Il-Jong Song ,  Sang-Hyo Lee

    IPC分类号： H04L27/22

    CPC分类号： H04L27/2338

    摘要： A phase-shift keying (PSK) demodulator and a smart card including the same are disclosed. The PSK demodulator includes a delay circuit and a sampling circuit. The delay circuit generates a plurality of clock signals by delaying the input signal. The sampling circuit samples the input signal in response to the clock signals, and generates output data.

    摘要翻译： 公开了一种相移键控（PSK）解调器和包括它的智能卡。 PSK解调器包括延迟电路和采样电路。 延迟电路通过延迟输入信号来产生多个时钟信号。 采样电路响应于时钟信号对输入信号进行采样，并产生输出数据。