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    Near-field communication circuit and operation method of the same
    1.
    发明授权
    Near-field communication circuit and operation method of the same 有权

    公开(公告)号：US10911104B2

    公开(公告)日：2021-02-02

    申请号：US16654980

    申请日：2019-10-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Byeong-Taek Moon ,  Jun-Ho Kim ,  Young-Joo Lee

    IPC: H04B5/02 ,  H04B5/00 ,  H03L7/081 ,  H04W4/80 ,  H03K5/135 ,  H03K5/00

    Abstract: A near-field communication (NFC) circuit includes a transmitter that generates a transmission signal based on a reference clock signal and transmits the transmission signal through an antenna; a clock recovery circuit that receives a detection signal through the antenna responsive to the transmission signal and recovers a recovered clock signal from the detection signal; a phase detector that detects a phase change of the recovered clock signal; and a controller that determines, based on the phase change of the recovered clock signal, whether an NFC tag external to the NFC circuit is located within a communication range of the NFC circuit.

    Reader receivers and reader transceivers including the same
    3.
    发明授权
    Reader receivers and reader transceivers including the same 有权
    读取器接收器和读取器收发器包括相同的

    公开(公告)号：US09344153B2

    公开(公告)日：2016-05-17

    申请号：US14546311

    申请日：2014-11-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jun-Ho Kim ,  Il-Jong Song ,  Hang-Seok Choi

    IPC: H04L27/00 ,  H04B5/00

    CPC classification number: H04B5/0031 ,  H04L27/00 ,  H04L27/0014 ,  H04L2027/0036

    Abstract: Reader receivers including a sample clock providing unit are provided. The sample clock providing unit may be configured to generate a plurality of first clock signals of equivalent frequency that are out-of-phase relative to each other and further configured to generate first and second sample clock signals of unequal phase from selected ones of the plurality of first clock signals by comparing a respective phase of each of the plurality of first clock signals against a phase of a reference clock signal.

    Abstract translation: 提供了包括采样时钟提供单元的读取器接收器。 采样时钟提供单元可以被配置为产生相对于彼此不同相位的等效频率的多个第一时钟信号，并且还被配置为从多个选定的时钟信号中产生具有不等相位的第一和第二采样时钟信号 通过将多个第一时钟信号中的每一个的相应相位与参考时钟信号的相位进行比较来产生第一时钟信号。

    Internal voltage generator and contactless IC card including the same
    5.
    发明授权
    Internal voltage generator and contactless IC card including the same 有权
    内部电压发生器和非接触式IC卡包括相同

    公开(公告)号：US09354646B2

    公开(公告)日：2016-05-31

    申请号：US14198803

    申请日：2014-03-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jun-Ho Kim ,  Il-Jong Song ,  Jong-Pil Cho

    IPC: G05F1/10 ,  G05F1/46 ,  G05F1/563 ,  G05F1/614

    CPC classification number: G05F1/468 ,  G05F1/563 ,  G05F1/614

    Abstract: A voltage generator of a contactless integrated circuit (IC) card includes a regulator configured to generate a first internal voltage based on an input voltage and a first reference voltage, the input voltage being received through an antenna of the contactless IC card. The voltage generator includes an internal voltage generator configured to generate a second internal voltage, the second internal voltage being used to operate an internal circuit of the contactless IC card. The voltage generator includes a reference voltage generator configured to generate a second reference voltage based on the first internal voltage, the second reference voltage being generated without regard to a fluctuation component of the first internal voltage. The voltage generator includes a switching unit configured to provide one of the first and second internal voltages as the first reference voltage in response to first and second switching control signals.

    Abstract translation: 非接触集成电路（IC）卡的电压发生器包括：调节器，被配置为基于输入电压和第一参考电压产生第一内部电压，所述输入电压通过非接触式IC卡的天线接收。 电压发生器包括被配置为产生第二内部电压的内部电压发生器，第二内部电压用于操作非接触式IC卡的内部电路。 电压发生器包括参考电压发生器，其被配置为基于第一内部电压产生第二参考电压，第二参考电压被产生而不考虑第一内部电压的波动分量。 电压发生器包括：开关单元，被配置为响应于第一和第二开关控制信号，提供第一和第二内部电压中的一个作为第一参考电压。

    READER RECEIVERS AND READER TRANSCEIVERS INCLUDING THE SAME
    6.
    发明申请
    READER RECEIVERS AND READER TRANSCEIVERS INCLUDING THE SAME 有权
    读取器接收器和读取器收发器，包括它们

    公开(公告)号：US20150146818A1

    公开(公告)日：2015-05-28

    申请号：US14546311

    申请日：2014-11-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jun-Ho Kim ,  Il-Jong Song ,  Hang-Seok Choi

    IPC: H04L7/00 ,  H04B5/00 ,  H04L7/06

    CPC classification number: H04B5/0031 ,  H04L27/00 ,  H04L27/0014 ,  H04L2027/0036

    Abstract: Reader receivers including a sample clock providing unit are provided. The sample clock providing unit may be configured to generate a plurality of first clock signals of equivalent frequency that are out-of-phase relative to each other and further configured to generate first and second sample clock signals of unequal phase from selected ones of the plurality of first clock signals by comparing a respective phase of each of the plurality of first clock signals against a phase of a reference clock signal.

    Abstract translation: 提供了包括采样时钟提供单元的读取器接收器。 采样时钟提供单元可以被配置为产生相对于彼此不同相位的等效频率的多个第一时钟信号，并且还被配置为从多个选定的时钟信号中产生具有不等相位的第一和第二采样时钟信号 通过将多个第一时钟信号中的每一个的相应相位与参考时钟信号的相位进行比较来产生第一时钟信号。

    NEAR FIELD COMMUNICATION DEVICE AND ELECTRONIC SYSTEM HAVING THE SAME
    7.
    发明申请
    NEAR FIELD COMMUNICATION DEVICE AND ELECTRONIC SYSTEM HAVING THE SAME 有权
    近场通信装置和具有该相机的电子系统

    公开(公告)号：US20150261984A1

    公开(公告)日：2015-09-17

    申请号：US14591510

    申请日：2015-01-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jong-Pil CHO ,  Jun-Ho Kim ,  Il-Jong Song

    IPC: G06K7/10

    CPC classification number: G06K7/10237 ,  G06K7/10158 ,  G06K7/10475

    Abstract: A Near Field Communication (NFC) device, system, and method are provided. The NFC device includes a resonance unit configured to emit a first electromagnetic wave to communicate with an external NFC card in a reader mode, and an NFC chip configured to measure an antenna voltage generated by the resonance unit while the resonance unit emits the first electromagnetic wave, and configured to control the resonance unit to stop emitting the first electromagnetic wave when a magnitude of the antenna voltage oscillates.

    Abstract translation: 提供了近场通信（NFC）设备，系统和方法。 NFC装置包括谐振单元，其被配置为发射第一电磁波以在读取器模式下与外部NFC卡通信;以及NFC芯片，被配置为测量由所述谐振单元产生的天线电压，而所述谐振单元发射所述第一电磁波 并且被配置为当所述天线电压的幅度振荡时，控制所述谐振单元停止发射所述第一电磁波。

    Demodulator for near field communication, near field communication device, and electronic device having the same
    10.
    发明授权
    Demodulator for near field communication, near field communication device, and electronic device having the same 有权

    公开(公告)号：US09634729B2

    公开(公告)日：2017-04-25

    申请号：US15184314

    申请日：2016-06-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jun-Ho Kim ,  Young-Joo Lee ,  Jong-Pil Cho ,  Jin-Woo Kim

    IPC: H04B5/00 ,  H04B7/00 ,  H04L27/06 ,  H04B1/16

    CPC classification number: H04B5/0031 ,  H04B1/16 ,  H04L27/06

    Abstract: A demodulator for a near field communication (NFC) includes a first rectifier, a shifting rectifier, a field monitor and an edge detector. The first rectifier receives an antenna voltage through a first power terminal and a second power terminal, rectifies the antenna voltage and provides a first rectified signal to a first node. The shifting rectifier is enabled in response to an enable signal, receives the antenna voltage through the first power terminal and the second power terminal, increases a direct current (DC) level of the antenna voltage, rectifies the increased DC-level antenna voltage and provides a shifted rectified signal to the first node. The field monitor receives the antenna voltage through the first power terminal and the second power terminal, monitors a magnitude of the antenna voltage and generates the enable signal which is activated when the magnitude is smaller than a reference value.

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